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7c673cae | 1 | // Copyright (c) 2011-present, Facebook, Inc. All rights reserved. |
11fdf7f2 TL |
2 | // This source code is licensed under both the GPLv2 (found in the |
3 | // COPYING file in the root directory) and Apache 2.0 License | |
4 | // (found in the LICENSE.Apache file in the root directory). | |
7c673cae FG |
5 | |
6 | // This file is designed for caching those frequently used IDs and provide | |
7 | // efficient portal (i.e, a set of static functions) to access java code | |
8 | // from c++. | |
9 | ||
10 | #ifndef JAVA_ROCKSJNI_PORTAL_H_ | |
11 | #define JAVA_ROCKSJNI_PORTAL_H_ | |
12 | ||
11fdf7f2 | 13 | #include <cstring> |
7c673cae FG |
14 | #include <jni.h> |
15 | #include <functional> | |
16 | #include <iostream> | |
11fdf7f2 | 17 | #include <iterator> |
7c673cae | 18 | #include <limits> |
11fdf7f2 | 19 | #include <memory> |
7c673cae | 20 | #include <string> |
11fdf7f2 | 21 | #include <type_traits> |
7c673cae FG |
22 | #include <vector> |
23 | ||
24 | #include "rocksdb/db.h" | |
25 | #include "rocksdb/filter_policy.h" | |
11fdf7f2 | 26 | #include "rocksdb/rate_limiter.h" |
7c673cae FG |
27 | #include "rocksdb/status.h" |
28 | #include "rocksdb/utilities/backupable_db.h" | |
11fdf7f2 | 29 | #include "rocksdb/utilities/transaction_db.h" |
7c673cae | 30 | #include "rocksdb/utilities/write_batch_with_index.h" |
11fdf7f2 | 31 | #include "rocksjni/compaction_filter_factory_jnicallback.h" |
7c673cae FG |
32 | #include "rocksjni/comparatorjnicallback.h" |
33 | #include "rocksjni/loggerjnicallback.h" | |
11fdf7f2 | 34 | #include "rocksjni/transaction_notifier_jnicallback.h" |
7c673cae FG |
35 | #include "rocksjni/writebatchhandlerjnicallback.h" |
36 | ||
37 | // Remove macro on windows | |
38 | #ifdef DELETE | |
39 | #undef DELETE | |
40 | #endif | |
41 | ||
42 | namespace rocksdb { | |
43 | ||
44 | // Detect if jlong overflows size_t | |
45 | inline Status check_if_jlong_fits_size_t(const jlong& jvalue) { | |
46 | Status s = Status::OK(); | |
47 | if (static_cast<uint64_t>(jvalue) > std::numeric_limits<size_t>::max()) { | |
48 | s = Status::InvalidArgument(Slice("jlong overflows 32 bit value.")); | |
49 | } | |
50 | return s; | |
51 | } | |
52 | ||
53 | class JavaClass { | |
54 | public: | |
55 | /** | |
56 | * Gets and initializes a Java Class | |
57 | * | |
58 | * @param env A pointer to the Java environment | |
59 | * @param jclazz_name The fully qualified JNI name of the Java Class | |
60 | * e.g. "java/lang/String" | |
61 | * | |
62 | * @return The Java Class or nullptr if one of the | |
63 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
64 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
65 | */ | |
66 | static jclass getJClass(JNIEnv* env, const char* jclazz_name) { | |
67 | jclass jclazz = env->FindClass(jclazz_name); | |
68 | assert(jclazz != nullptr); | |
69 | return jclazz; | |
70 | } | |
71 | }; | |
72 | ||
73 | // Native class template | |
74 | template<class PTR, class DERIVED> class RocksDBNativeClass : public JavaClass { | |
75 | }; | |
76 | ||
77 | // Native class template for sub-classes of RocksMutableObject | |
78 | template<class PTR, class DERIVED> class NativeRocksMutableObject | |
79 | : public RocksDBNativeClass<PTR, DERIVED> { | |
80 | public: | |
81 | ||
82 | /** | |
83 | * Gets the Java Method ID for the | |
84 | * RocksMutableObject#setNativeHandle(long, boolean) method | |
85 | * | |
86 | * @param env A pointer to the Java environment | |
87 | * @return The Java Method ID or nullptr the RocksMutableObject class cannot | |
88 | * be accessed, or if one of the NoSuchMethodError, | |
89 | * ExceptionInInitializerError or OutOfMemoryError exceptions is thrown | |
90 | */ | |
91 | static jmethodID getSetNativeHandleMethod(JNIEnv* env) { | |
92 | static jclass jclazz = DERIVED::getJClass(env); | |
93 | if(jclazz == nullptr) { | |
94 | return nullptr; | |
95 | } | |
96 | ||
97 | static jmethodID mid = env->GetMethodID( | |
98 | jclazz, "setNativeHandle", "(JZ)V"); | |
99 | assert(mid != nullptr); | |
100 | return mid; | |
101 | } | |
102 | ||
103 | /** | |
104 | * Sets the C++ object pointer handle in the Java object | |
105 | * | |
106 | * @param env A pointer to the Java environment | |
107 | * @param jobj The Java object on which to set the pointer handle | |
108 | * @param ptr The C++ object pointer | |
109 | * @param java_owns_handle JNI_TRUE if ownership of the C++ object is | |
110 | * managed by the Java object | |
111 | * | |
112 | * @return true if a Java exception is pending, false otherwise | |
113 | */ | |
114 | static bool setHandle(JNIEnv* env, jobject jobj, PTR ptr, | |
115 | jboolean java_owns_handle) { | |
116 | assert(jobj != nullptr); | |
117 | static jmethodID mid = getSetNativeHandleMethod(env); | |
118 | if(mid == nullptr) { | |
119 | return true; // signal exception | |
120 | } | |
121 | ||
122 | env->CallVoidMethod(jobj, mid, reinterpret_cast<jlong>(ptr), java_owns_handle); | |
123 | if(env->ExceptionCheck()) { | |
124 | return true; // signal exception | |
125 | } | |
126 | ||
127 | return false; | |
128 | } | |
129 | }; | |
130 | ||
131 | // Java Exception template | |
132 | template<class DERIVED> class JavaException : public JavaClass { | |
133 | public: | |
134 | /** | |
135 | * Create and throw a java exception with the provided message | |
136 | * | |
137 | * @param env A pointer to the Java environment | |
138 | * @param msg The message for the exception | |
139 | * | |
140 | * @return true if an exception was thrown, false otherwise | |
141 | */ | |
142 | static bool ThrowNew(JNIEnv* env, const std::string& msg) { | |
143 | jclass jclazz = DERIVED::getJClass(env); | |
144 | if(jclazz == nullptr) { | |
145 | // exception occurred accessing class | |
146 | std::cerr << "JavaException::ThrowNew - Error: unexpected exception!" << std::endl; | |
147 | return env->ExceptionCheck(); | |
148 | } | |
149 | ||
150 | const jint rs = env->ThrowNew(jclazz, msg.c_str()); | |
151 | if(rs != JNI_OK) { | |
152 | // exception could not be thrown | |
153 | std::cerr << "JavaException::ThrowNew - Fatal: could not throw exception!" << std::endl; | |
154 | return env->ExceptionCheck(); | |
155 | } | |
156 | ||
157 | return true; | |
158 | } | |
159 | }; | |
160 | ||
161 | // The portal class for org.rocksdb.RocksDB | |
162 | class RocksDBJni : public RocksDBNativeClass<rocksdb::DB*, RocksDBJni> { | |
163 | public: | |
164 | /** | |
165 | * Get the Java Class org.rocksdb.RocksDB | |
166 | * | |
167 | * @param env A pointer to the Java environment | |
168 | * | |
169 | * @return The Java Class or nullptr if one of the | |
170 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
171 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
172 | */ | |
173 | static jclass getJClass(JNIEnv* env) { | |
174 | return RocksDBNativeClass::getJClass(env, "org/rocksdb/RocksDB"); | |
175 | } | |
176 | }; | |
177 | ||
11fdf7f2 TL |
178 | // The portal class for org.rocksdb.Status.Code |
179 | class CodeJni : public JavaClass { | |
180 | public: | |
181 | /** | |
182 | * Get the Java Class org.rocksdb.Status.Code | |
183 | * | |
184 | * @param env A pointer to the Java environment | |
185 | * | |
186 | * @return The Java Class or nullptr if one of the | |
187 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
188 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
189 | */ | |
190 | static jclass getJClass(JNIEnv* env) { | |
191 | return JavaClass::getJClass(env, "org/rocksdb/Status$Code"); | |
192 | } | |
193 | ||
194 | /** | |
195 | * Get the Java Method: Status.Code#getValue | |
196 | * | |
197 | * @param env A pointer to the Java environment | |
198 | * | |
199 | * @return The Java Method ID or nullptr if the class or method id could not | |
200 | * be retieved | |
201 | */ | |
202 | static jmethodID getValueMethod(JNIEnv* env) { | |
203 | jclass jclazz = getJClass(env); | |
204 | if(jclazz == nullptr) { | |
205 | // exception occurred accessing class | |
206 | return nullptr; | |
207 | } | |
208 | ||
209 | static jmethodID mid = | |
210 | env->GetMethodID(jclazz, "getValue", "()b"); | |
211 | assert(mid != nullptr); | |
212 | return mid; | |
213 | } | |
214 | }; | |
215 | ||
216 | // The portal class for org.rocksdb.Status.SubCode | |
217 | class SubCodeJni : public JavaClass { | |
218 | public: | |
219 | /** | |
220 | * Get the Java Class org.rocksdb.Status.SubCode | |
221 | * | |
222 | * @param env A pointer to the Java environment | |
223 | * | |
224 | * @return The Java Class or nullptr if one of the | |
225 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
226 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
227 | */ | |
228 | static jclass getJClass(JNIEnv* env) { | |
229 | return JavaClass::getJClass(env, "org/rocksdb/Status$SubCode"); | |
230 | } | |
231 | ||
232 | /** | |
233 | * Get the Java Method: Status.SubCode#getValue | |
234 | * | |
235 | * @param env A pointer to the Java environment | |
236 | * | |
237 | * @return The Java Method ID or nullptr if the class or method id could not | |
238 | * be retieved | |
239 | */ | |
240 | static jmethodID getValueMethod(JNIEnv* env) { | |
241 | jclass jclazz = getJClass(env); | |
242 | if(jclazz == nullptr) { | |
243 | // exception occurred accessing class | |
244 | return nullptr; | |
245 | } | |
246 | ||
247 | static jmethodID mid = | |
248 | env->GetMethodID(jclazz, "getValue", "()b"); | |
249 | assert(mid != nullptr); | |
250 | return mid; | |
251 | } | |
252 | ||
253 | static rocksdb::Status::SubCode toCppSubCode(const jbyte jsub_code) { | |
254 | switch (jsub_code) { | |
255 | case 0x0: | |
256 | return rocksdb::Status::SubCode::kNone; | |
257 | case 0x1: | |
258 | return rocksdb::Status::SubCode::kMutexTimeout; | |
259 | case 0x2: | |
260 | return rocksdb::Status::SubCode::kLockTimeout; | |
261 | case 0x3: | |
262 | return rocksdb::Status::SubCode::kLockLimit; | |
263 | case 0x4: | |
264 | return rocksdb::Status::SubCode::kNoSpace; | |
265 | case 0x5: | |
266 | return rocksdb::Status::SubCode::kDeadlock; | |
267 | case 0x6: | |
268 | return rocksdb::Status::SubCode::kStaleFile; | |
269 | case 0x7: | |
270 | return rocksdb::Status::SubCode::kMemoryLimit; | |
271 | ||
272 | case 0x7F: | |
273 | default: | |
274 | return rocksdb::Status::SubCode::kNone; | |
275 | } | |
276 | } | |
277 | }; | |
278 | ||
7c673cae FG |
279 | // The portal class for org.rocksdb.Status |
280 | class StatusJni : public RocksDBNativeClass<rocksdb::Status*, StatusJni> { | |
281 | public: | |
282 | /** | |
283 | * Get the Java Class org.rocksdb.Status | |
284 | * | |
285 | * @param env A pointer to the Java environment | |
286 | * | |
287 | * @return The Java Class or nullptr if one of the | |
288 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
289 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
290 | */ | |
291 | static jclass getJClass(JNIEnv* env) { | |
292 | return RocksDBNativeClass::getJClass(env, "org/rocksdb/Status"); | |
293 | } | |
294 | ||
11fdf7f2 TL |
295 | /** |
296 | * Get the Java Method: Status#getCode | |
297 | * | |
298 | * @param env A pointer to the Java environment | |
299 | * | |
300 | * @return The Java Method ID or nullptr if the class or method id could not | |
301 | * be retieved | |
302 | */ | |
303 | static jmethodID getCodeMethod(JNIEnv* env) { | |
304 | jclass jclazz = getJClass(env); | |
305 | if(jclazz == nullptr) { | |
306 | // exception occurred accessing class | |
307 | return nullptr; | |
308 | } | |
309 | ||
310 | static jmethodID mid = | |
311 | env->GetMethodID(jclazz, "getCode", "()Lorg/rocksdb/Status$Code;"); | |
312 | assert(mid != nullptr); | |
313 | return mid; | |
314 | } | |
315 | ||
316 | /** | |
317 | * Get the Java Method: Status#getSubCode | |
318 | * | |
319 | * @param env A pointer to the Java environment | |
320 | * | |
321 | * @return The Java Method ID or nullptr if the class or method id could not | |
322 | * be retieved | |
323 | */ | |
324 | static jmethodID getSubCodeMethod(JNIEnv* env) { | |
325 | jclass jclazz = getJClass(env); | |
326 | if(jclazz == nullptr) { | |
327 | // exception occurred accessing class | |
328 | return nullptr; | |
329 | } | |
330 | ||
331 | static jmethodID mid = | |
332 | env->GetMethodID(jclazz, "getSubCode", "()Lorg/rocksdb/Status$SubCode;"); | |
333 | assert(mid != nullptr); | |
334 | return mid; | |
335 | } | |
336 | ||
337 | /** | |
338 | * Get the Java Method: Status#getState | |
339 | * | |
340 | * @param env A pointer to the Java environment | |
341 | * | |
342 | * @return The Java Method ID or nullptr if the class or method id could not | |
343 | * be retieved | |
344 | */ | |
345 | static jmethodID getStateMethod(JNIEnv* env) { | |
346 | jclass jclazz = getJClass(env); | |
347 | if(jclazz == nullptr) { | |
348 | // exception occurred accessing class | |
349 | return nullptr; | |
350 | } | |
351 | ||
352 | static jmethodID mid = | |
353 | env->GetMethodID(jclazz, "getState", "()Ljava/lang/String;"); | |
354 | assert(mid != nullptr); | |
355 | return mid; | |
356 | } | |
357 | ||
7c673cae FG |
358 | /** |
359 | * Create a new Java org.rocksdb.Status object with the same properties as | |
360 | * the provided C++ rocksdb::Status object | |
361 | * | |
362 | * @param env A pointer to the Java environment | |
363 | * @param status The rocksdb::Status object | |
364 | * | |
365 | * @return A reference to a Java org.rocksdb.Status object, or nullptr | |
366 | * if an an exception occurs | |
367 | */ | |
368 | static jobject construct(JNIEnv* env, const Status& status) { | |
369 | jclass jclazz = getJClass(env); | |
370 | if(jclazz == nullptr) { | |
371 | // exception occurred accessing class | |
372 | return nullptr; | |
373 | } | |
374 | ||
375 | jmethodID mid = | |
376 | env->GetMethodID(jclazz, "<init>", "(BBLjava/lang/String;)V"); | |
377 | if(mid == nullptr) { | |
378 | // exception thrown: NoSuchMethodException or OutOfMemoryError | |
379 | return nullptr; | |
380 | } | |
381 | ||
382 | // convert the Status state for Java | |
383 | jstring jstate = nullptr; | |
384 | if (status.getState() != nullptr) { | |
385 | const char* const state = status.getState(); | |
386 | jstate = env->NewStringUTF(state); | |
387 | if(env->ExceptionCheck()) { | |
388 | if(jstate != nullptr) { | |
389 | env->DeleteLocalRef(jstate); | |
390 | } | |
391 | return nullptr; | |
392 | } | |
393 | } | |
394 | ||
395 | jobject jstatus = | |
396 | env->NewObject(jclazz, mid, toJavaStatusCode(status.code()), | |
397 | toJavaStatusSubCode(status.subcode()), jstate); | |
398 | if(env->ExceptionCheck()) { | |
399 | // exception occurred | |
400 | if(jstate != nullptr) { | |
401 | env->DeleteLocalRef(jstate); | |
402 | } | |
403 | return nullptr; | |
404 | } | |
405 | ||
406 | if(jstate != nullptr) { | |
407 | env->DeleteLocalRef(jstate); | |
408 | } | |
409 | ||
410 | return jstatus; | |
411 | } | |
412 | ||
413 | // Returns the equivalent org.rocksdb.Status.Code for the provided | |
414 | // C++ rocksdb::Status::Code enum | |
415 | static jbyte toJavaStatusCode(const rocksdb::Status::Code& code) { | |
416 | switch (code) { | |
417 | case rocksdb::Status::Code::kOk: | |
418 | return 0x0; | |
419 | case rocksdb::Status::Code::kNotFound: | |
420 | return 0x1; | |
421 | case rocksdb::Status::Code::kCorruption: | |
422 | return 0x2; | |
423 | case rocksdb::Status::Code::kNotSupported: | |
424 | return 0x3; | |
425 | case rocksdb::Status::Code::kInvalidArgument: | |
426 | return 0x4; | |
427 | case rocksdb::Status::Code::kIOError: | |
428 | return 0x5; | |
429 | case rocksdb::Status::Code::kMergeInProgress: | |
430 | return 0x6; | |
431 | case rocksdb::Status::Code::kIncomplete: | |
432 | return 0x7; | |
433 | case rocksdb::Status::Code::kShutdownInProgress: | |
434 | return 0x8; | |
435 | case rocksdb::Status::Code::kTimedOut: | |
436 | return 0x9; | |
437 | case rocksdb::Status::Code::kAborted: | |
438 | return 0xA; | |
439 | case rocksdb::Status::Code::kBusy: | |
440 | return 0xB; | |
441 | case rocksdb::Status::Code::kExpired: | |
442 | return 0xC; | |
443 | case rocksdb::Status::Code::kTryAgain: | |
444 | return 0xD; | |
445 | default: | |
446 | return 0x7F; // undefined | |
447 | } | |
448 | } | |
449 | ||
450 | // Returns the equivalent org.rocksdb.Status.SubCode for the provided | |
451 | // C++ rocksdb::Status::SubCode enum | |
452 | static jbyte toJavaStatusSubCode(const rocksdb::Status::SubCode& subCode) { | |
453 | switch (subCode) { | |
454 | case rocksdb::Status::SubCode::kNone: | |
455 | return 0x0; | |
456 | case rocksdb::Status::SubCode::kMutexTimeout: | |
457 | return 0x1; | |
458 | case rocksdb::Status::SubCode::kLockTimeout: | |
459 | return 0x2; | |
460 | case rocksdb::Status::SubCode::kLockLimit: | |
461 | return 0x3; | |
11fdf7f2 TL |
462 | case rocksdb::Status::SubCode::kNoSpace: |
463 | return 0x4; | |
464 | case rocksdb::Status::SubCode::kDeadlock: | |
465 | return 0x5; | |
466 | case rocksdb::Status::SubCode::kStaleFile: | |
467 | return 0x6; | |
468 | case rocksdb::Status::SubCode::kMemoryLimit: | |
469 | return 0x7; | |
7c673cae FG |
470 | default: |
471 | return 0x7F; // undefined | |
472 | } | |
473 | } | |
11fdf7f2 TL |
474 | |
475 | // Returns the equivalent rocksdb::Status for the Java org.rocksdb.Status | |
476 | static std::unique_ptr<rocksdb::Status> toCppStatus(JNIEnv* env, const jobject jstatus) { | |
477 | jmethodID mid_code = getCodeMethod(env); | |
478 | if (mid_code == nullptr) { | |
479 | // exception occurred | |
480 | return nullptr; | |
481 | } | |
482 | jobject jcode = env->CallObjectMethod(jstatus, mid_code); | |
483 | if (env->ExceptionCheck()) { | |
484 | // exception occurred | |
485 | return nullptr; | |
486 | } | |
487 | ||
488 | jmethodID mid_code_value = rocksdb::CodeJni::getValueMethod(env); | |
489 | if (mid_code_value == nullptr) { | |
490 | // exception occurred | |
491 | return nullptr; | |
492 | } | |
493 | jbyte jcode_value = env->CallByteMethod(jcode, mid_code_value); | |
494 | if (env->ExceptionCheck()) { | |
495 | // exception occurred | |
496 | if (jcode != nullptr) { | |
497 | env->DeleteLocalRef(jcode); | |
498 | } | |
499 | return nullptr; | |
500 | } | |
501 | ||
502 | jmethodID mid_subCode = getSubCodeMethod(env); | |
503 | if (mid_subCode == nullptr) { | |
504 | // exception occurred | |
505 | return nullptr; | |
506 | } | |
507 | jobject jsubCode = env->CallObjectMethod(jstatus, mid_subCode); | |
508 | if (env->ExceptionCheck()) { | |
509 | // exception occurred | |
510 | if (jcode != nullptr) { | |
511 | env->DeleteLocalRef(jcode); | |
512 | } | |
513 | return nullptr; | |
514 | } | |
515 | ||
516 | jbyte jsubCode_value = 0x0; // None | |
517 | if (jsubCode != nullptr) { | |
518 | jmethodID mid_subCode_value = rocksdb::SubCodeJni::getValueMethod(env); | |
519 | if (mid_subCode_value == nullptr) { | |
520 | // exception occurred | |
521 | return nullptr; | |
522 | } | |
523 | jsubCode_value =env->CallByteMethod(jsubCode, mid_subCode_value); | |
524 | if (env->ExceptionCheck()) { | |
525 | // exception occurred | |
526 | if (jcode != nullptr) { | |
527 | env->DeleteLocalRef(jcode); | |
528 | } | |
529 | return nullptr; | |
530 | } | |
531 | } | |
532 | ||
533 | jmethodID mid_state = getStateMethod(env); | |
534 | if (mid_state == nullptr) { | |
535 | // exception occurred | |
536 | return nullptr; | |
537 | } | |
538 | jobject jstate = env->CallObjectMethod(jstatus, mid_state); | |
539 | if (env->ExceptionCheck()) { | |
540 | // exception occurred | |
541 | if (jsubCode != nullptr) { | |
542 | env->DeleteLocalRef(jsubCode); | |
543 | } | |
544 | if (jcode != nullptr) { | |
545 | env->DeleteLocalRef(jcode); | |
546 | } | |
547 | return nullptr; | |
548 | } | |
549 | ||
550 | std::unique_ptr<rocksdb::Status> status; | |
551 | switch (jcode_value) { | |
552 | case 0x0: | |
553 | //Ok | |
554 | status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::OK())); | |
555 | break; | |
556 | case 0x1: | |
557 | //NotFound | |
558 | status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::NotFound(rocksdb::SubCodeJni::toCppSubCode(jsubCode_value)))); | |
559 | break; | |
560 | case 0x2: | |
561 | //Corruption | |
562 | status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::Corruption(rocksdb::SubCodeJni::toCppSubCode(jsubCode_value)))); | |
563 | break; | |
564 | case 0x3: | |
565 | //NotSupported | |
566 | status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::NotSupported(rocksdb::SubCodeJni::toCppSubCode(jsubCode_value)))); | |
567 | break; | |
568 | case 0x4: | |
569 | //InvalidArgument | |
570 | status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::InvalidArgument(rocksdb::SubCodeJni::toCppSubCode(jsubCode_value)))); | |
571 | break; | |
572 | case 0x5: | |
573 | //IOError | |
574 | status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::IOError(rocksdb::SubCodeJni::toCppSubCode(jsubCode_value)))); | |
575 | break; | |
576 | case 0x6: | |
577 | //MergeInProgress | |
578 | status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::MergeInProgress(rocksdb::SubCodeJni::toCppSubCode(jsubCode_value)))); | |
579 | break; | |
580 | case 0x7: | |
581 | //Incomplete | |
582 | status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::Incomplete(rocksdb::SubCodeJni::toCppSubCode(jsubCode_value)))); | |
583 | break; | |
584 | case 0x8: | |
585 | //ShutdownInProgress | |
586 | status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::ShutdownInProgress(rocksdb::SubCodeJni::toCppSubCode(jsubCode_value)))); | |
587 | break; | |
588 | case 0x9: | |
589 | //TimedOut | |
590 | status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::TimedOut(rocksdb::SubCodeJni::toCppSubCode(jsubCode_value)))); | |
591 | break; | |
592 | case 0xA: | |
593 | //Aborted | |
594 | status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::Aborted(rocksdb::SubCodeJni::toCppSubCode(jsubCode_value)))); | |
595 | break; | |
596 | case 0xB: | |
597 | //Busy | |
598 | status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::Busy(rocksdb::SubCodeJni::toCppSubCode(jsubCode_value)))); | |
599 | break; | |
600 | case 0xC: | |
601 | //Expired | |
602 | status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::Expired(rocksdb::SubCodeJni::toCppSubCode(jsubCode_value)))); | |
603 | break; | |
604 | case 0xD: | |
605 | //TryAgain | |
606 | status = std::unique_ptr<rocksdb::Status>(new rocksdb::Status(rocksdb::Status::TryAgain(rocksdb::SubCodeJni::toCppSubCode(jsubCode_value)))); | |
607 | break; | |
608 | case 0x7F: | |
609 | default: | |
610 | return nullptr; | |
611 | } | |
612 | ||
613 | // delete all local refs | |
614 | if (jstate != nullptr) { | |
615 | env->DeleteLocalRef(jstate); | |
616 | } | |
617 | if (jsubCode != nullptr) { | |
618 | env->DeleteLocalRef(jsubCode); | |
619 | } | |
620 | if (jcode != nullptr) { | |
621 | env->DeleteLocalRef(jcode); | |
622 | } | |
623 | ||
624 | return status; | |
625 | } | |
7c673cae FG |
626 | }; |
627 | ||
628 | // The portal class for org.rocksdb.RocksDBException | |
629 | class RocksDBExceptionJni : | |
630 | public JavaException<RocksDBExceptionJni> { | |
631 | public: | |
632 | /** | |
633 | * Get the Java Class org.rocksdb.RocksDBException | |
634 | * | |
635 | * @param env A pointer to the Java environment | |
636 | * | |
637 | * @return The Java Class or nullptr if one of the | |
638 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
639 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
640 | */ | |
641 | static jclass getJClass(JNIEnv* env) { | |
642 | return JavaException::getJClass(env, "org/rocksdb/RocksDBException"); | |
643 | } | |
644 | ||
645 | /** | |
646 | * Create and throw a Java RocksDBException with the provided message | |
647 | * | |
648 | * @param env A pointer to the Java environment | |
649 | * @param msg The message for the exception | |
650 | * | |
651 | * @return true if an exception was thrown, false otherwise | |
652 | */ | |
653 | static bool ThrowNew(JNIEnv* env, const std::string& msg) { | |
654 | return JavaException::ThrowNew(env, msg); | |
655 | } | |
656 | ||
11fdf7f2 TL |
657 | /** |
658 | * Create and throw a Java RocksDBException with the provided status | |
659 | * | |
660 | * If s->ok() == true, then this function will not throw any exception. | |
661 | * | |
662 | * @param env A pointer to the Java environment | |
663 | * @param s The status for the exception | |
664 | * | |
665 | * @return true if an exception was thrown, false otherwise | |
666 | */ | |
667 | static bool ThrowNew(JNIEnv* env, std::unique_ptr<Status>& s) { | |
668 | return rocksdb::RocksDBExceptionJni::ThrowNew(env, *(s.get())); | |
669 | } | |
670 | ||
7c673cae FG |
671 | /** |
672 | * Create and throw a Java RocksDBException with the provided status | |
673 | * | |
674 | * If s.ok() == true, then this function will not throw any exception. | |
675 | * | |
676 | * @param env A pointer to the Java environment | |
677 | * @param s The status for the exception | |
678 | * | |
679 | * @return true if an exception was thrown, false otherwise | |
680 | */ | |
681 | static bool ThrowNew(JNIEnv* env, const Status& s) { | |
682 | assert(!s.ok()); | |
683 | if (s.ok()) { | |
684 | return false; | |
685 | } | |
686 | ||
687 | // get the RocksDBException class | |
688 | jclass jclazz = getJClass(env); | |
689 | if(jclazz == nullptr) { | |
690 | // exception occurred accessing class | |
691 | std::cerr << "RocksDBExceptionJni::ThrowNew/class - Error: unexpected exception!" << std::endl; | |
692 | return env->ExceptionCheck(); | |
693 | } | |
694 | ||
695 | // get the constructor of org.rocksdb.RocksDBException | |
696 | jmethodID mid = | |
697 | env->GetMethodID(jclazz, "<init>", "(Lorg/rocksdb/Status;)V"); | |
698 | if(mid == nullptr) { | |
699 | // exception thrown: NoSuchMethodException or OutOfMemoryError | |
700 | std::cerr << "RocksDBExceptionJni::ThrowNew/cstr - Error: unexpected exception!" << std::endl; | |
701 | return env->ExceptionCheck(); | |
702 | } | |
703 | ||
704 | // get the Java status object | |
705 | jobject jstatus = StatusJni::construct(env, s); | |
706 | if(jstatus == nullptr) { | |
707 | // exception occcurred | |
708 | std::cerr << "RocksDBExceptionJni::ThrowNew/StatusJni - Error: unexpected exception!" << std::endl; | |
709 | return env->ExceptionCheck(); | |
710 | } | |
711 | ||
712 | // construct the RocksDBException | |
713 | jthrowable rocksdb_exception = reinterpret_cast<jthrowable>(env->NewObject(jclazz, mid, jstatus)); | |
714 | if(env->ExceptionCheck()) { | |
715 | if(jstatus != nullptr) { | |
716 | env->DeleteLocalRef(jstatus); | |
717 | } | |
718 | if(rocksdb_exception != nullptr) { | |
719 | env->DeleteLocalRef(rocksdb_exception); | |
720 | } | |
721 | std::cerr << "RocksDBExceptionJni::ThrowNew/NewObject - Error: unexpected exception!" << std::endl; | |
722 | return true; | |
723 | } | |
724 | ||
725 | // throw the RocksDBException | |
726 | const jint rs = env->Throw(rocksdb_exception); | |
727 | if(rs != JNI_OK) { | |
728 | // exception could not be thrown | |
729 | std::cerr << "RocksDBExceptionJni::ThrowNew - Fatal: could not throw exception!" << std::endl; | |
730 | if(jstatus != nullptr) { | |
731 | env->DeleteLocalRef(jstatus); | |
732 | } | |
733 | if(rocksdb_exception != nullptr) { | |
734 | env->DeleteLocalRef(rocksdb_exception); | |
735 | } | |
736 | return env->ExceptionCheck(); | |
737 | } | |
738 | ||
739 | if(jstatus != nullptr) { | |
740 | env->DeleteLocalRef(jstatus); | |
741 | } | |
742 | if(rocksdb_exception != nullptr) { | |
743 | env->DeleteLocalRef(rocksdb_exception); | |
744 | } | |
745 | ||
746 | return true; | |
747 | } | |
748 | ||
749 | /** | |
750 | * Create and throw a Java RocksDBException with the provided message | |
751 | * and status | |
752 | * | |
753 | * If s.ok() == true, then this function will not throw any exception. | |
754 | * | |
755 | * @param env A pointer to the Java environment | |
756 | * @param msg The message for the exception | |
757 | * @param s The status for the exception | |
758 | * | |
759 | * @return true if an exception was thrown, false otherwise | |
760 | */ | |
761 | static bool ThrowNew(JNIEnv* env, const std::string& msg, const Status& s) { | |
762 | assert(!s.ok()); | |
763 | if (s.ok()) { | |
764 | return false; | |
765 | } | |
766 | ||
767 | // get the RocksDBException class | |
768 | jclass jclazz = getJClass(env); | |
769 | if(jclazz == nullptr) { | |
770 | // exception occurred accessing class | |
771 | std::cerr << "RocksDBExceptionJni::ThrowNew/class - Error: unexpected exception!" << std::endl; | |
772 | return env->ExceptionCheck(); | |
773 | } | |
774 | ||
775 | // get the constructor of org.rocksdb.RocksDBException | |
776 | jmethodID mid = | |
777 | env->GetMethodID(jclazz, "<init>", "(Ljava/lang/String;Lorg/rocksdb/Status;)V"); | |
778 | if(mid == nullptr) { | |
779 | // exception thrown: NoSuchMethodException or OutOfMemoryError | |
780 | std::cerr << "RocksDBExceptionJni::ThrowNew/cstr - Error: unexpected exception!" << std::endl; | |
781 | return env->ExceptionCheck(); | |
782 | } | |
783 | ||
784 | jstring jmsg = env->NewStringUTF(msg.c_str()); | |
785 | if(jmsg == nullptr) { | |
786 | // exception thrown: OutOfMemoryError | |
787 | std::cerr << "RocksDBExceptionJni::ThrowNew/msg - Error: unexpected exception!" << std::endl; | |
788 | return env->ExceptionCheck(); | |
789 | } | |
790 | ||
791 | // get the Java status object | |
792 | jobject jstatus = StatusJni::construct(env, s); | |
793 | if(jstatus == nullptr) { | |
794 | // exception occcurred | |
795 | std::cerr << "RocksDBExceptionJni::ThrowNew/StatusJni - Error: unexpected exception!" << std::endl; | |
796 | if(jmsg != nullptr) { | |
797 | env->DeleteLocalRef(jmsg); | |
798 | } | |
799 | return env->ExceptionCheck(); | |
800 | } | |
801 | ||
802 | // construct the RocksDBException | |
803 | jthrowable rocksdb_exception = reinterpret_cast<jthrowable>(env->NewObject(jclazz, mid, jmsg, jstatus)); | |
804 | if(env->ExceptionCheck()) { | |
805 | if(jstatus != nullptr) { | |
806 | env->DeleteLocalRef(jstatus); | |
807 | } | |
808 | if(jmsg != nullptr) { | |
809 | env->DeleteLocalRef(jmsg); | |
810 | } | |
811 | if(rocksdb_exception != nullptr) { | |
812 | env->DeleteLocalRef(rocksdb_exception); | |
813 | } | |
814 | std::cerr << "RocksDBExceptionJni::ThrowNew/NewObject - Error: unexpected exception!" << std::endl; | |
815 | return true; | |
816 | } | |
817 | ||
818 | // throw the RocksDBException | |
819 | const jint rs = env->Throw(rocksdb_exception); | |
820 | if(rs != JNI_OK) { | |
821 | // exception could not be thrown | |
822 | std::cerr << "RocksDBExceptionJni::ThrowNew - Fatal: could not throw exception!" << std::endl; | |
823 | if(jstatus != nullptr) { | |
824 | env->DeleteLocalRef(jstatus); | |
825 | } | |
826 | if(jmsg != nullptr) { | |
827 | env->DeleteLocalRef(jmsg); | |
828 | } | |
829 | if(rocksdb_exception != nullptr) { | |
830 | env->DeleteLocalRef(rocksdb_exception); | |
831 | } | |
832 | return env->ExceptionCheck(); | |
833 | } | |
834 | ||
835 | if(jstatus != nullptr) { | |
836 | env->DeleteLocalRef(jstatus); | |
837 | } | |
838 | if(jmsg != nullptr) { | |
839 | env->DeleteLocalRef(jmsg); | |
840 | } | |
841 | if(rocksdb_exception != nullptr) { | |
842 | env->DeleteLocalRef(rocksdb_exception); | |
843 | } | |
844 | ||
845 | return true; | |
846 | } | |
11fdf7f2 TL |
847 | |
848 | /** | |
849 | * Get the Java Method: RocksDBException#getStatus | |
850 | * | |
851 | * @param env A pointer to the Java environment | |
852 | * | |
853 | * @return The Java Method ID or nullptr if the class or method id could not | |
854 | * be retieved | |
855 | */ | |
856 | static jmethodID getStatusMethod(JNIEnv* env) { | |
857 | jclass jclazz = getJClass(env); | |
858 | if(jclazz == nullptr) { | |
859 | // exception occurred accessing class | |
860 | return nullptr; | |
861 | } | |
862 | ||
863 | static jmethodID mid = | |
864 | env->GetMethodID(jclazz, "getStatus", "()Lorg/rocksdb/Status;"); | |
865 | assert(mid != nullptr); | |
866 | return mid; | |
867 | } | |
868 | ||
869 | static std::unique_ptr<rocksdb::Status> toCppStatus( | |
870 | JNIEnv* env, jthrowable jrocksdb_exception) { | |
871 | if(!env->IsInstanceOf(jrocksdb_exception, getJClass(env))) { | |
872 | // not an instance of RocksDBException | |
873 | return nullptr; | |
874 | } | |
875 | ||
876 | // get the java status object | |
877 | jmethodID mid = getStatusMethod(env); | |
878 | if(mid == nullptr) { | |
879 | // exception occurred accessing class or method | |
880 | return nullptr; | |
881 | } | |
882 | ||
883 | jobject jstatus = env->CallObjectMethod(jrocksdb_exception, mid); | |
884 | if(env->ExceptionCheck()) { | |
885 | // exception occurred | |
886 | return nullptr; | |
887 | } | |
888 | ||
889 | if(jstatus == nullptr) { | |
890 | return nullptr; // no status available | |
891 | } | |
892 | ||
893 | return rocksdb::StatusJni::toCppStatus(env, jstatus); | |
894 | } | |
7c673cae FG |
895 | }; |
896 | ||
897 | // The portal class for java.lang.IllegalArgumentException | |
898 | class IllegalArgumentExceptionJni : | |
899 | public JavaException<IllegalArgumentExceptionJni> { | |
900 | public: | |
901 | /** | |
902 | * Get the Java Class java.lang.IllegalArgumentException | |
903 | * | |
904 | * @param env A pointer to the Java environment | |
905 | * | |
906 | * @return The Java Class or nullptr if one of the | |
907 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
908 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
909 | */ | |
910 | static jclass getJClass(JNIEnv* env) { | |
911 | return JavaException::getJClass(env, "java/lang/IllegalArgumentException"); | |
912 | } | |
913 | ||
914 | /** | |
915 | * Create and throw a Java IllegalArgumentException with the provided status | |
916 | * | |
917 | * If s.ok() == true, then this function will not throw any exception. | |
918 | * | |
919 | * @param env A pointer to the Java environment | |
920 | * @param s The status for the exception | |
921 | * | |
922 | * @return true if an exception was thrown, false otherwise | |
923 | */ | |
924 | static bool ThrowNew(JNIEnv* env, const Status& s) { | |
925 | assert(!s.ok()); | |
926 | if (s.ok()) { | |
927 | return false; | |
928 | } | |
929 | ||
930 | // get the IllegalArgumentException class | |
931 | jclass jclazz = getJClass(env); | |
932 | if(jclazz == nullptr) { | |
933 | // exception occurred accessing class | |
934 | std::cerr << "IllegalArgumentExceptionJni::ThrowNew/class - Error: unexpected exception!" << std::endl; | |
935 | return env->ExceptionCheck(); | |
936 | } | |
937 | ||
938 | return JavaException::ThrowNew(env, s.ToString()); | |
939 | } | |
940 | }; | |
941 | ||
942 | ||
943 | // The portal class for org.rocksdb.Options | |
944 | class OptionsJni : public RocksDBNativeClass< | |
945 | rocksdb::Options*, OptionsJni> { | |
946 | public: | |
947 | /** | |
948 | * Get the Java Class org.rocksdb.Options | |
949 | * | |
950 | * @param env A pointer to the Java environment | |
951 | * | |
952 | * @return The Java Class or nullptr if one of the | |
953 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
954 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
955 | */ | |
956 | static jclass getJClass(JNIEnv* env) { | |
957 | return RocksDBNativeClass::getJClass(env, "org/rocksdb/Options"); | |
958 | } | |
959 | }; | |
960 | ||
961 | // The portal class for org.rocksdb.DBOptions | |
962 | class DBOptionsJni : public RocksDBNativeClass< | |
963 | rocksdb::DBOptions*, DBOptionsJni> { | |
964 | public: | |
965 | /** | |
966 | * Get the Java Class org.rocksdb.DBOptions | |
967 | * | |
968 | * @param env A pointer to the Java environment | |
969 | * | |
970 | * @return The Java Class or nullptr if one of the | |
971 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
972 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
973 | */ | |
974 | static jclass getJClass(JNIEnv* env) { | |
975 | return RocksDBNativeClass::getJClass(env, "org/rocksdb/DBOptions"); | |
976 | } | |
977 | }; | |
978 | ||
11fdf7f2 TL |
979 | // The portal class for org.rocksdb.ColumnFamilyOptions |
980 | class ColumnFamilyOptionsJni | |
981 | : public RocksDBNativeClass<rocksdb::ColumnFamilyOptions*, | |
982 | ColumnFamilyOptionsJni> { | |
7c673cae FG |
983 | public: |
984 | /** | |
11fdf7f2 | 985 | * Get the Java Class org.rocksdb.ColumnFamilyOptions |
7c673cae FG |
986 | * |
987 | * @param env A pointer to the Java environment | |
988 | * | |
989 | * @return The Java Class or nullptr if one of the | |
990 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
991 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
992 | */ | |
993 | static jclass getJClass(JNIEnv* env) { | |
11fdf7f2 TL |
994 | return RocksDBNativeClass::getJClass(env, |
995 | "org/rocksdb/ColumnFamilyOptions"); | |
7c673cae FG |
996 | } |
997 | ||
998 | /** | |
11fdf7f2 TL |
999 | * Create a new Java org.rocksdb.ColumnFamilyOptions object with the same |
1000 | * properties as the provided C++ rocksdb::ColumnFamilyOptions object | |
7c673cae FG |
1001 | * |
1002 | * @param env A pointer to the Java environment | |
11fdf7f2 | 1003 | * @param cfoptions A pointer to rocksdb::ColumnFamilyOptions object |
7c673cae | 1004 | * |
11fdf7f2 TL |
1005 | * @return A reference to a Java org.rocksdb.ColumnFamilyOptions object, or |
1006 | * nullptr if an an exception occurs | |
7c673cae | 1007 | */ |
11fdf7f2 TL |
1008 | static jobject construct(JNIEnv* env, const ColumnFamilyOptions* cfoptions) { |
1009 | auto* cfo = new rocksdb::ColumnFamilyOptions(*cfoptions); | |
7c673cae FG |
1010 | jclass jclazz = getJClass(env); |
1011 | if(jclazz == nullptr) { | |
1012 | // exception occurred accessing class | |
1013 | return nullptr; | |
1014 | } | |
1015 | ||
11fdf7f2 TL |
1016 | jmethodID mid = env->GetMethodID(jclazz, "<init>", "(J)V"); |
1017 | if (mid == nullptr) { | |
1018 | // exception thrown: NoSuchMethodException or OutOfMemoryError | |
7c673cae FG |
1019 | return nullptr; |
1020 | } | |
1021 | ||
11fdf7f2 TL |
1022 | jobject jcfd = env->NewObject(jclazz, mid, reinterpret_cast<jlong>(cfo)); |
1023 | if (env->ExceptionCheck()) { | |
1024 | return nullptr; | |
1025 | } | |
7c673cae | 1026 | |
11fdf7f2 | 1027 | return jcfd; |
7c673cae FG |
1028 | } |
1029 | }; | |
1030 | ||
1031 | // The portal class for org.rocksdb.WriteOptions | |
1032 | class WriteOptionsJni : public RocksDBNativeClass< | |
1033 | rocksdb::WriteOptions*, WriteOptionsJni> { | |
1034 | public: | |
1035 | /** | |
1036 | * Get the Java Class org.rocksdb.WriteOptions | |
1037 | * | |
1038 | * @param env A pointer to the Java environment | |
1039 | * | |
1040 | * @return The Java Class or nullptr if one of the | |
1041 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
1042 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
1043 | */ | |
1044 | static jclass getJClass(JNIEnv* env) { | |
1045 | return RocksDBNativeClass::getJClass(env, "org/rocksdb/WriteOptions"); | |
1046 | } | |
1047 | }; | |
1048 | ||
1049 | // The portal class for org.rocksdb.ReadOptions | |
1050 | class ReadOptionsJni : public RocksDBNativeClass< | |
1051 | rocksdb::ReadOptions*, ReadOptionsJni> { | |
1052 | public: | |
1053 | /** | |
1054 | * Get the Java Class org.rocksdb.ReadOptions | |
1055 | * | |
1056 | * @param env A pointer to the Java environment | |
1057 | * | |
1058 | * @return The Java Class or nullptr if one of the | |
1059 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
1060 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
1061 | */ | |
1062 | static jclass getJClass(JNIEnv* env) { | |
1063 | return RocksDBNativeClass::getJClass(env, "org/rocksdb/ReadOptions"); | |
1064 | } | |
1065 | }; | |
1066 | ||
1067 | // The portal class for org.rocksdb.WriteBatch | |
1068 | class WriteBatchJni : public RocksDBNativeClass< | |
1069 | rocksdb::WriteBatch*, WriteBatchJni> { | |
1070 | public: | |
1071 | /** | |
1072 | * Get the Java Class org.rocksdb.WriteBatch | |
1073 | * | |
1074 | * @param env A pointer to the Java environment | |
1075 | * | |
1076 | * @return The Java Class or nullptr if one of the | |
1077 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
1078 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
1079 | */ | |
1080 | static jclass getJClass(JNIEnv* env) { | |
1081 | return RocksDBNativeClass::getJClass(env, "org/rocksdb/WriteBatch"); | |
1082 | } | |
11fdf7f2 TL |
1083 | |
1084 | /** | |
1085 | * Create a new Java org.rocksdb.WriteBatch object | |
1086 | * | |
1087 | * @param env A pointer to the Java environment | |
1088 | * @param wb A pointer to rocksdb::WriteBatch object | |
1089 | * | |
1090 | * @return A reference to a Java org.rocksdb.WriteBatch object, or | |
1091 | * nullptr if an an exception occurs | |
1092 | */ | |
1093 | static jobject construct(JNIEnv* env, const WriteBatch* wb) { | |
1094 | jclass jclazz = getJClass(env); | |
1095 | if(jclazz == nullptr) { | |
1096 | // exception occurred accessing class | |
1097 | return nullptr; | |
1098 | } | |
1099 | ||
1100 | jmethodID mid = env->GetMethodID(jclazz, "<init>", "(J)V"); | |
1101 | if (mid == nullptr) { | |
1102 | // exception thrown: NoSuchMethodException or OutOfMemoryError | |
1103 | return nullptr; | |
1104 | } | |
1105 | ||
1106 | jobject jwb = env->NewObject(jclazz, mid, reinterpret_cast<jlong>(wb)); | |
1107 | if (env->ExceptionCheck()) { | |
1108 | return nullptr; | |
1109 | } | |
1110 | ||
1111 | return jwb; | |
1112 | } | |
7c673cae FG |
1113 | }; |
1114 | ||
1115 | // The portal class for org.rocksdb.WriteBatch.Handler | |
1116 | class WriteBatchHandlerJni : public RocksDBNativeClass< | |
1117 | const rocksdb::WriteBatchHandlerJniCallback*, | |
1118 | WriteBatchHandlerJni> { | |
1119 | public: | |
1120 | /** | |
1121 | * Get the Java Class org.rocksdb.WriteBatch.Handler | |
1122 | * | |
1123 | * @param env A pointer to the Java environment | |
1124 | * | |
1125 | * @return The Java Class or nullptr if one of the | |
1126 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
1127 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
1128 | */ | |
1129 | static jclass getJClass(JNIEnv* env) { | |
1130 | return RocksDBNativeClass::getJClass(env, | |
1131 | "org/rocksdb/WriteBatch$Handler"); | |
1132 | } | |
1133 | ||
1134 | /** | |
1135 | * Get the Java Method: WriteBatch.Handler#put | |
1136 | * | |
1137 | * @param env A pointer to the Java environment | |
1138 | * | |
1139 | * @return The Java Method ID or nullptr if the class or method id could not | |
1140 | * be retieved | |
1141 | */ | |
11fdf7f2 | 1142 | static jmethodID getPutCfMethodId(JNIEnv* env) { |
7c673cae FG |
1143 | jclass jclazz = getJClass(env); |
1144 | if(jclazz == nullptr) { | |
1145 | // exception occurred accessing class | |
1146 | return nullptr; | |
1147 | } | |
1148 | ||
11fdf7f2 | 1149 | static jmethodID mid = env->GetMethodID(jclazz, "put", "(I[B[B)V"); |
7c673cae FG |
1150 | assert(mid != nullptr); |
1151 | return mid; | |
1152 | } | |
1153 | ||
1154 | /** | |
11fdf7f2 | 1155 | * Get the Java Method: WriteBatch.Handler#put |
7c673cae FG |
1156 | * |
1157 | * @param env A pointer to the Java environment | |
1158 | * | |
1159 | * @return The Java Method ID or nullptr if the class or method id could not | |
1160 | * be retieved | |
1161 | */ | |
11fdf7f2 | 1162 | static jmethodID getPutMethodId(JNIEnv* env) { |
7c673cae FG |
1163 | jclass jclazz = getJClass(env); |
1164 | if(jclazz == nullptr) { | |
1165 | // exception occurred accessing class | |
1166 | return nullptr; | |
1167 | } | |
1168 | ||
11fdf7f2 | 1169 | static jmethodID mid = env->GetMethodID(jclazz, "put", "([B[B)V"); |
7c673cae FG |
1170 | assert(mid != nullptr); |
1171 | return mid; | |
1172 | } | |
1173 | ||
1174 | /** | |
11fdf7f2 | 1175 | * Get the Java Method: WriteBatch.Handler#merge |
7c673cae FG |
1176 | * |
1177 | * @param env A pointer to the Java environment | |
1178 | * | |
1179 | * @return The Java Method ID or nullptr if the class or method id could not | |
1180 | * be retieved | |
1181 | */ | |
11fdf7f2 | 1182 | static jmethodID getMergeCfMethodId(JNIEnv* env) { |
7c673cae FG |
1183 | jclass jclazz = getJClass(env); |
1184 | if(jclazz == nullptr) { | |
1185 | // exception occurred accessing class | |
1186 | return nullptr; | |
1187 | } | |
1188 | ||
11fdf7f2 | 1189 | static jmethodID mid = env->GetMethodID(jclazz, "merge", "(I[B[B)V"); |
7c673cae FG |
1190 | assert(mid != nullptr); |
1191 | return mid; | |
1192 | } | |
1193 | ||
1194 | /** | |
11fdf7f2 | 1195 | * Get the Java Method: WriteBatch.Handler#merge |
7c673cae FG |
1196 | * |
1197 | * @param env A pointer to the Java environment | |
1198 | * | |
1199 | * @return The Java Method ID or nullptr if the class or method id could not | |
1200 | * be retieved | |
1201 | */ | |
11fdf7f2 | 1202 | static jmethodID getMergeMethodId(JNIEnv* env) { |
7c673cae | 1203 | jclass jclazz = getJClass(env); |
11fdf7f2 | 1204 | if(jclazz == nullptr) { |
7c673cae FG |
1205 | // exception occurred accessing class |
1206 | return nullptr; | |
1207 | } | |
1208 | ||
11fdf7f2 | 1209 | static jmethodID mid = env->GetMethodID(jclazz, "merge", "([B[B)V"); |
7c673cae FG |
1210 | assert(mid != nullptr); |
1211 | return mid; | |
1212 | } | |
1213 | ||
1214 | /** | |
11fdf7f2 | 1215 | * Get the Java Method: WriteBatch.Handler#delete |
7c673cae FG |
1216 | * |
1217 | * @param env A pointer to the Java environment | |
1218 | * | |
1219 | * @return The Java Method ID or nullptr if the class or method id could not | |
1220 | * be retieved | |
1221 | */ | |
11fdf7f2 | 1222 | static jmethodID getDeleteCfMethodId(JNIEnv* env) { |
7c673cae FG |
1223 | jclass jclazz = getJClass(env); |
1224 | if(jclazz == nullptr) { | |
1225 | // exception occurred accessing class | |
1226 | return nullptr; | |
1227 | } | |
1228 | ||
11fdf7f2 | 1229 | static jmethodID mid = env->GetMethodID(jclazz, "delete", "(I[B)V"); |
7c673cae FG |
1230 | assert(mid != nullptr); |
1231 | return mid; | |
1232 | } | |
1233 | ||
1234 | /** | |
11fdf7f2 | 1235 | * Get the Java Method: WriteBatch.Handler#delete |
7c673cae FG |
1236 | * |
1237 | * @param env A pointer to the Java environment | |
1238 | * | |
1239 | * @return The Java Method ID or nullptr if the class or method id could not | |
1240 | * be retieved | |
1241 | */ | |
11fdf7f2 | 1242 | static jmethodID getDeleteMethodId(JNIEnv* env) { |
7c673cae FG |
1243 | jclass jclazz = getJClass(env); |
1244 | if(jclazz == nullptr) { | |
1245 | // exception occurred accessing class | |
1246 | return nullptr; | |
1247 | } | |
1248 | ||
11fdf7f2 | 1249 | static jmethodID mid = env->GetMethodID(jclazz, "delete", "([B)V"); |
7c673cae FG |
1250 | assert(mid != nullptr); |
1251 | return mid; | |
1252 | } | |
7c673cae | 1253 | |
7c673cae | 1254 | /** |
11fdf7f2 | 1255 | * Get the Java Method: WriteBatch.Handler#singleDelete |
7c673cae FG |
1256 | * |
1257 | * @param env A pointer to the Java environment | |
1258 | * | |
11fdf7f2 TL |
1259 | * @return The Java Method ID or nullptr if the class or method id could not |
1260 | * be retieved | |
7c673cae | 1261 | */ |
11fdf7f2 TL |
1262 | static jmethodID getSingleDeleteCfMethodId(JNIEnv* env) { |
1263 | jclass jclazz = getJClass(env); | |
1264 | if(jclazz == nullptr) { | |
1265 | // exception occurred accessing class | |
1266 | return nullptr; | |
1267 | } | |
1268 | ||
1269 | static jmethodID mid = env->GetMethodID(jclazz, "singleDelete", "(I[B)V"); | |
1270 | assert(mid != nullptr); | |
1271 | return mid; | |
7c673cae | 1272 | } |
7c673cae | 1273 | |
7c673cae | 1274 | /** |
11fdf7f2 | 1275 | * Get the Java Method: WriteBatch.Handler#singleDelete |
7c673cae FG |
1276 | * |
1277 | * @param env A pointer to the Java environment | |
1278 | * | |
11fdf7f2 TL |
1279 | * @return The Java Method ID or nullptr if the class or method id could not |
1280 | * be retieved | |
7c673cae | 1281 | */ |
11fdf7f2 TL |
1282 | static jmethodID getSingleDeleteMethodId(JNIEnv* env) { |
1283 | jclass jclazz = getJClass(env); | |
1284 | if(jclazz == nullptr) { | |
1285 | // exception occurred accessing class | |
1286 | return nullptr; | |
1287 | } | |
1288 | ||
1289 | static jmethodID mid = env->GetMethodID(jclazz, "singleDelete", "([B)V"); | |
1290 | assert(mid != nullptr); | |
1291 | return mid; | |
7c673cae FG |
1292 | } |
1293 | ||
1294 | /** | |
11fdf7f2 | 1295 | * Get the Java Method: WriteBatch.Handler#deleteRange |
7c673cae FG |
1296 | * |
1297 | * @param env A pointer to the Java environment | |
1298 | * | |
1299 | * @return The Java Method ID or nullptr if the class or method id could not | |
1300 | * be retieved | |
1301 | */ | |
11fdf7f2 | 1302 | static jmethodID getDeleteRangeCfMethodId(JNIEnv* env) { |
7c673cae | 1303 | jclass jclazz = getJClass(env); |
11fdf7f2 | 1304 | if (jclazz == nullptr) { |
7c673cae FG |
1305 | // exception occurred accessing class |
1306 | return nullptr; | |
1307 | } | |
1308 | ||
11fdf7f2 | 1309 | static jmethodID mid = env->GetMethodID(jclazz, "deleteRange", "(I[B[B)V"); |
7c673cae FG |
1310 | assert(mid != nullptr); |
1311 | return mid; | |
1312 | } | |
7c673cae | 1313 | |
7c673cae | 1314 | /** |
11fdf7f2 | 1315 | * Get the Java Method: WriteBatch.Handler#deleteRange |
7c673cae FG |
1316 | * |
1317 | * @param env A pointer to the Java environment | |
1318 | * | |
11fdf7f2 TL |
1319 | * @return The Java Method ID or nullptr if the class or method id could not |
1320 | * be retieved | |
7c673cae | 1321 | */ |
11fdf7f2 TL |
1322 | static jmethodID getDeleteRangeMethodId(JNIEnv* env) { |
1323 | jclass jclazz = getJClass(env); | |
1324 | if (jclazz == nullptr) { | |
1325 | // exception occurred accessing class | |
1326 | return nullptr; | |
1327 | } | |
1328 | ||
1329 | static jmethodID mid = env->GetMethodID(jclazz, "deleteRange", "([B[B)V"); | |
1330 | assert(mid != nullptr); | |
1331 | return mid; | |
7c673cae | 1332 | } |
7c673cae | 1333 | |
7c673cae | 1334 | /** |
11fdf7f2 | 1335 | * Get the Java Method: WriteBatch.Handler#logData |
7c673cae FG |
1336 | * |
1337 | * @param env A pointer to the Java environment | |
1338 | * | |
11fdf7f2 TL |
1339 | * @return The Java Method ID or nullptr if the class or method id could not |
1340 | * be retieved | |
7c673cae | 1341 | */ |
11fdf7f2 TL |
1342 | static jmethodID getLogDataMethodId(JNIEnv* env) { |
1343 | jclass jclazz = getJClass(env); | |
1344 | if(jclazz == nullptr) { | |
1345 | // exception occurred accessing class | |
1346 | return nullptr; | |
1347 | } | |
1348 | ||
1349 | static jmethodID mid = env->GetMethodID(jclazz, "logData", "([B)V"); | |
1350 | assert(mid != nullptr); | |
1351 | return mid; | |
7c673cae | 1352 | } |
7c673cae | 1353 | |
7c673cae | 1354 | /** |
11fdf7f2 | 1355 | * Get the Java Method: WriteBatch.Handler#putBlobIndex |
7c673cae FG |
1356 | * |
1357 | * @param env A pointer to the Java environment | |
1358 | * | |
11fdf7f2 TL |
1359 | * @return The Java Method ID or nullptr if the class or method id could not |
1360 | * be retieved | |
7c673cae | 1361 | */ |
11fdf7f2 TL |
1362 | static jmethodID getPutBlobIndexCfMethodId(JNIEnv* env) { |
1363 | jclass jclazz = getJClass(env); | |
1364 | if(jclazz == nullptr) { | |
1365 | // exception occurred accessing class | |
1366 | return nullptr; | |
1367 | } | |
1368 | ||
1369 | static jmethodID mid = env->GetMethodID(jclazz, "putBlobIndex", "(I[B[B)V"); | |
1370 | assert(mid != nullptr); | |
1371 | return mid; | |
7c673cae | 1372 | } |
7c673cae | 1373 | |
7c673cae | 1374 | /** |
11fdf7f2 | 1375 | * Get the Java Method: WriteBatch.Handler#markBeginPrepare |
7c673cae FG |
1376 | * |
1377 | * @param env A pointer to the Java environment | |
1378 | * | |
11fdf7f2 TL |
1379 | * @return The Java Method ID or nullptr if the class or method id could not |
1380 | * be retieved | |
7c673cae | 1381 | */ |
11fdf7f2 TL |
1382 | static jmethodID getMarkBeginPrepareMethodId(JNIEnv* env) { |
1383 | jclass jclazz = getJClass(env); | |
1384 | if(jclazz == nullptr) { | |
1385 | // exception occurred accessing class | |
1386 | return nullptr; | |
1387 | } | |
1388 | ||
1389 | static jmethodID mid = env->GetMethodID(jclazz, "markBeginPrepare", "()V"); | |
1390 | assert(mid != nullptr); | |
1391 | return mid; | |
7c673cae | 1392 | } |
7c673cae | 1393 | |
7c673cae | 1394 | /** |
11fdf7f2 | 1395 | * Get the Java Method: WriteBatch.Handler#markEndPrepare |
7c673cae FG |
1396 | * |
1397 | * @param env A pointer to the Java environment | |
1398 | * | |
11fdf7f2 TL |
1399 | * @return The Java Method ID or nullptr if the class or method id could not |
1400 | * be retieved | |
7c673cae | 1401 | */ |
11fdf7f2 TL |
1402 | static jmethodID getMarkEndPrepareMethodId(JNIEnv* env) { |
1403 | jclass jclazz = getJClass(env); | |
1404 | if(jclazz == nullptr) { | |
1405 | // exception occurred accessing class | |
1406 | return nullptr; | |
1407 | } | |
1408 | ||
1409 | static jmethodID mid = env->GetMethodID(jclazz, "markEndPrepare", "([B)V"); | |
1410 | assert(mid != nullptr); | |
1411 | return mid; | |
7c673cae | 1412 | } |
7c673cae | 1413 | |
7c673cae | 1414 | /** |
11fdf7f2 | 1415 | * Get the Java Method: WriteBatch.Handler#markNoop |
7c673cae FG |
1416 | * |
1417 | * @param env A pointer to the Java environment | |
1418 | * | |
11fdf7f2 TL |
1419 | * @return The Java Method ID or nullptr if the class or method id could not |
1420 | * be retieved | |
7c673cae | 1421 | */ |
11fdf7f2 TL |
1422 | static jmethodID getMarkNoopMethodId(JNIEnv* env) { |
1423 | jclass jclazz = getJClass(env); | |
1424 | if(jclazz == nullptr) { | |
1425 | // exception occurred accessing class | |
1426 | return nullptr; | |
1427 | } | |
7c673cae | 1428 | |
11fdf7f2 TL |
1429 | static jmethodID mid = env->GetMethodID(jclazz, "markNoop", "(Z)V"); |
1430 | assert(mid != nullptr); | |
1431 | return mid; | |
7c673cae | 1432 | } |
7c673cae | 1433 | |
7c673cae | 1434 | /** |
11fdf7f2 | 1435 | * Get the Java Method: WriteBatch.Handler#markRollback |
7c673cae FG |
1436 | * |
1437 | * @param env A pointer to the Java environment | |
1438 | * | |
11fdf7f2 TL |
1439 | * @return The Java Method ID or nullptr if the class or method id could not |
1440 | * be retieved | |
7c673cae | 1441 | */ |
11fdf7f2 TL |
1442 | static jmethodID getMarkRollbackMethodId(JNIEnv* env) { |
1443 | jclass jclazz = getJClass(env); | |
1444 | if(jclazz == nullptr) { | |
1445 | // exception occurred accessing class | |
1446 | return nullptr; | |
1447 | } | |
1448 | ||
1449 | static jmethodID mid = env->GetMethodID(jclazz, "markRollback", "([B)V"); | |
1450 | assert(mid != nullptr); | |
1451 | return mid; | |
7c673cae FG |
1452 | } |
1453 | ||
1454 | /** | |
11fdf7f2 | 1455 | * Get the Java Method: WriteBatch.Handler#markCommit |
7c673cae FG |
1456 | * |
1457 | * @param env A pointer to the Java environment | |
1458 | * | |
1459 | * @return The Java Method ID or nullptr if the class or method id could not | |
1460 | * be retieved | |
1461 | */ | |
11fdf7f2 | 1462 | static jmethodID getMarkCommitMethodId(JNIEnv* env) { |
7c673cae FG |
1463 | jclass jclazz = getJClass(env); |
1464 | if(jclazz == nullptr) { | |
1465 | // exception occurred accessing class | |
1466 | return nullptr; | |
1467 | } | |
1468 | ||
11fdf7f2 | 1469 | static jmethodID mid = env->GetMethodID(jclazz, "markCommit", "([B)V"); |
7c673cae FG |
1470 | assert(mid != nullptr); |
1471 | return mid; | |
1472 | } | |
1473 | ||
1474 | /** | |
11fdf7f2 | 1475 | * Get the Java Method: WriteBatch.Handler#shouldContinue |
7c673cae FG |
1476 | * |
1477 | * @param env A pointer to the Java environment | |
1478 | * | |
1479 | * @return The Java Method ID or nullptr if the class or method id could not | |
1480 | * be retieved | |
1481 | */ | |
11fdf7f2 | 1482 | static jmethodID getContinueMethodId(JNIEnv* env) { |
7c673cae FG |
1483 | jclass jclazz = getJClass(env); |
1484 | if(jclazz == nullptr) { | |
1485 | // exception occurred accessing class | |
1486 | return nullptr; | |
1487 | } | |
1488 | ||
11fdf7f2 | 1489 | static jmethodID mid = env->GetMethodID(jclazz, "shouldContinue", "()Z"); |
7c673cae FG |
1490 | assert(mid != nullptr); |
1491 | return mid; | |
1492 | } | |
11fdf7f2 | 1493 | }; |
7c673cae | 1494 | |
11fdf7f2 TL |
1495 | class WriteBatchSavePointJni : public JavaClass { |
1496 | public: | |
7c673cae | 1497 | /** |
11fdf7f2 TL |
1498 | * Get the Java Class org.rocksdb.WriteBatch.SavePoint |
1499 | * | |
1500 | * @param env A pointer to the Java environment | |
1501 | * | |
1502 | * @return The Java Class or nullptr if one of the | |
1503 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
1504 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
1505 | */ | |
1506 | static jclass getJClass(JNIEnv* env) { | |
1507 | return JavaClass::getJClass(env, "org/rocksdb/WriteBatch$SavePoint"); | |
1508 | } | |
1509 | ||
1510 | /** | |
1511 | * Get the Java Method: HistogramData constructor | |
7c673cae FG |
1512 | * |
1513 | * @param env A pointer to the Java environment | |
1514 | * | |
1515 | * @return The Java Method ID or nullptr if the class or method id could not | |
1516 | * be retieved | |
1517 | */ | |
11fdf7f2 | 1518 | static jmethodID getConstructorMethodId(JNIEnv* env) { |
7c673cae FG |
1519 | jclass jclazz = getJClass(env); |
1520 | if(jclazz == nullptr) { | |
1521 | // exception occurred accessing class | |
1522 | return nullptr; | |
1523 | } | |
1524 | ||
11fdf7f2 | 1525 | static jmethodID mid = env->GetMethodID(jclazz, "<init>", "(JJJ)V"); |
7c673cae FG |
1526 | assert(mid != nullptr); |
1527 | return mid; | |
1528 | } | |
1529 | ||
1530 | /** | |
11fdf7f2 | 1531 | * Create a new Java org.rocksdb.WriteBatch.SavePoint object |
7c673cae FG |
1532 | * |
1533 | * @param env A pointer to the Java environment | |
11fdf7f2 | 1534 | * @param savePoint A pointer to rocksdb::WriteBatch::SavePoint object |
7c673cae | 1535 | * |
11fdf7f2 TL |
1536 | * @return A reference to a Java org.rocksdb.WriteBatch.SavePoint object, or |
1537 | * nullptr if an an exception occurs | |
7c673cae | 1538 | */ |
11fdf7f2 | 1539 | static jobject construct(JNIEnv* env, const SavePoint &save_point) { |
7c673cae FG |
1540 | jclass jclazz = getJClass(env); |
1541 | if(jclazz == nullptr) { | |
1542 | // exception occurred accessing class | |
1543 | return nullptr; | |
1544 | } | |
1545 | ||
11fdf7f2 TL |
1546 | jmethodID mid = getConstructorMethodId(env); |
1547 | if (mid == nullptr) { | |
1548 | // exception thrown: NoSuchMethodException or OutOfMemoryError | |
1549 | return nullptr; | |
1550 | } | |
1551 | ||
1552 | jobject jsave_point = env->NewObject(jclazz, mid, | |
1553 | static_cast<jlong>(save_point.size), | |
1554 | static_cast<jlong>(save_point.count), | |
1555 | static_cast<jlong>(save_point.content_flags)); | |
1556 | if (env->ExceptionCheck()) { | |
1557 | return nullptr; | |
1558 | } | |
1559 | ||
1560 | return jsave_point; | |
7c673cae FG |
1561 | } |
1562 | }; | |
1563 | ||
11fdf7f2 TL |
1564 | // The portal class for org.rocksdb.WriteBatchWithIndex |
1565 | class WriteBatchWithIndexJni : public RocksDBNativeClass< | |
1566 | rocksdb::WriteBatchWithIndex*, WriteBatchWithIndexJni> { | |
7c673cae FG |
1567 | public: |
1568 | /** | |
11fdf7f2 | 1569 | * Get the Java Class org.rocksdb.WriteBatchWithIndex |
7c673cae FG |
1570 | * |
1571 | * @param env A pointer to the Java environment | |
1572 | * | |
1573 | * @return The Java Class or nullptr if one of the | |
1574 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
1575 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
1576 | */ | |
1577 | static jclass getJClass(JNIEnv* env) { | |
11fdf7f2 TL |
1578 | return RocksDBNativeClass::getJClass(env, |
1579 | "org/rocksdb/WriteBatchWithIndex"); | |
7c673cae FG |
1580 | } |
1581 | }; | |
1582 | ||
11fdf7f2 TL |
1583 | // The portal class for org.rocksdb.HistogramData |
1584 | class HistogramDataJni : public JavaClass { | |
7c673cae FG |
1585 | public: |
1586 | /** | |
11fdf7f2 | 1587 | * Get the Java Class org.rocksdb.HistogramData |
7c673cae FG |
1588 | * |
1589 | * @param env A pointer to the Java environment | |
1590 | * | |
1591 | * @return The Java Class or nullptr if one of the | |
1592 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
1593 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
1594 | */ | |
1595 | static jclass getJClass(JNIEnv* env) { | |
11fdf7f2 | 1596 | return JavaClass::getJClass(env, "org/rocksdb/HistogramData"); |
7c673cae FG |
1597 | } |
1598 | ||
1599 | /** | |
11fdf7f2 | 1600 | * Get the Java Method: HistogramData constructor |
7c673cae FG |
1601 | * |
1602 | * @param env A pointer to the Java environment | |
1603 | * | |
11fdf7f2 TL |
1604 | * @return The Java Method ID or nullptr if the class or method id could not |
1605 | * be retieved | |
7c673cae | 1606 | */ |
11fdf7f2 | 1607 | static jmethodID getConstructorMethodId(JNIEnv* env) { |
7c673cae FG |
1608 | jclass jclazz = getJClass(env); |
1609 | if(jclazz == nullptr) { | |
1610 | // exception occurred accessing class | |
1611 | return nullptr; | |
1612 | } | |
1613 | ||
11fdf7f2 TL |
1614 | static jmethodID mid = env->GetMethodID(jclazz, "<init>", "(DDDDD)V"); |
1615 | assert(mid != nullptr); | |
1616 | return mid; | |
7c673cae FG |
1617 | } |
1618 | }; | |
1619 | ||
11fdf7f2 TL |
1620 | // The portal class for org.rocksdb.BackupableDBOptions |
1621 | class BackupableDBOptionsJni : public RocksDBNativeClass< | |
1622 | rocksdb::BackupableDBOptions*, BackupableDBOptionsJni> { | |
7c673cae FG |
1623 | public: |
1624 | /** | |
11fdf7f2 | 1625 | * Get the Java Class org.rocksdb.BackupableDBOptions |
7c673cae FG |
1626 | * |
1627 | * @param env A pointer to the Java environment | |
1628 | * | |
1629 | * @return The Java Class or nullptr if one of the | |
1630 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
1631 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
1632 | */ | |
1633 | static jclass getJClass(JNIEnv* env) { | |
11fdf7f2 TL |
1634 | return RocksDBNativeClass::getJClass(env, |
1635 | "org/rocksdb/BackupableDBOptions"); | |
7c673cae | 1636 | } |
11fdf7f2 | 1637 | }; |
7c673cae | 1638 | |
11fdf7f2 TL |
1639 | // The portal class for org.rocksdb.BackupEngine |
1640 | class BackupEngineJni : public RocksDBNativeClass< | |
1641 | rocksdb::BackupEngine*, BackupEngineJni> { | |
1642 | public: | |
7c673cae | 1643 | /** |
11fdf7f2 | 1644 | * Get the Java Class org.rocksdb.BackupableEngine |
7c673cae FG |
1645 | * |
1646 | * @param env A pointer to the Java environment | |
1647 | * | |
11fdf7f2 TL |
1648 | * @return The Java Class or nullptr if one of the |
1649 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
1650 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
7c673cae | 1651 | */ |
11fdf7f2 TL |
1652 | static jclass getJClass(JNIEnv* env) { |
1653 | return RocksDBNativeClass::getJClass(env, "org/rocksdb/BackupEngine"); | |
7c673cae FG |
1654 | } |
1655 | }; | |
1656 | ||
11fdf7f2 TL |
1657 | // The portal class for org.rocksdb.RocksIterator |
1658 | class IteratorJni : public RocksDBNativeClass< | |
1659 | rocksdb::Iterator*, IteratorJni> { | |
7c673cae FG |
1660 | public: |
1661 | /** | |
11fdf7f2 | 1662 | * Get the Java Class org.rocksdb.RocksIterator |
7c673cae FG |
1663 | * |
1664 | * @param env A pointer to the Java environment | |
1665 | * | |
1666 | * @return The Java Class or nullptr if one of the | |
1667 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
1668 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
1669 | */ | |
11fdf7f2 TL |
1670 | static jclass getJClass(JNIEnv* env) { |
1671 | return RocksDBNativeClass::getJClass(env, "org/rocksdb/RocksIterator"); | |
7c673cae | 1672 | } |
11fdf7f2 | 1673 | }; |
7c673cae | 1674 | |
11fdf7f2 TL |
1675 | // The portal class for org.rocksdb.Filter |
1676 | class FilterJni : public RocksDBNativeClass< | |
1677 | std::shared_ptr<rocksdb::FilterPolicy>*, FilterJni> { | |
1678 | public: | |
7c673cae | 1679 | /** |
11fdf7f2 | 1680 | * Get the Java Class org.rocksdb.Filter |
7c673cae FG |
1681 | * |
1682 | * @param env A pointer to the Java environment | |
1683 | * | |
1684 | * @return The Java Class or nullptr if one of the | |
1685 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
1686 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
1687 | */ | |
11fdf7f2 TL |
1688 | static jclass getJClass(JNIEnv* env) { |
1689 | return RocksDBNativeClass::getJClass(env, "org/rocksdb/Filter"); | |
7c673cae | 1690 | } |
11fdf7f2 | 1691 | }; |
7c673cae | 1692 | |
11fdf7f2 TL |
1693 | // The portal class for org.rocksdb.ColumnFamilyHandle |
1694 | class ColumnFamilyHandleJni : public RocksDBNativeClass< | |
1695 | rocksdb::ColumnFamilyHandle*, ColumnFamilyHandleJni> { | |
1696 | public: | |
7c673cae | 1697 | /** |
11fdf7f2 | 1698 | * Get the Java Class org.rocksdb.ColumnFamilyHandle |
7c673cae FG |
1699 | * |
1700 | * @param env A pointer to the Java environment | |
1701 | * | |
1702 | * @return The Java Class or nullptr if one of the | |
1703 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
1704 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
1705 | */ | |
11fdf7f2 TL |
1706 | static jclass getJClass(JNIEnv* env) { |
1707 | return RocksDBNativeClass::getJClass(env, | |
1708 | "org/rocksdb/ColumnFamilyHandle"); | |
7c673cae | 1709 | } |
11fdf7f2 | 1710 | }; |
7c673cae | 1711 | |
11fdf7f2 TL |
1712 | // The portal class for org.rocksdb.FlushOptions |
1713 | class FlushOptionsJni : public RocksDBNativeClass< | |
1714 | rocksdb::FlushOptions*, FlushOptionsJni> { | |
1715 | public: | |
7c673cae | 1716 | /** |
11fdf7f2 | 1717 | * Get the Java Class org.rocksdb.FlushOptions |
7c673cae FG |
1718 | * |
1719 | * @param env A pointer to the Java environment | |
1720 | * | |
11fdf7f2 TL |
1721 | * @return The Java Class or nullptr if one of the |
1722 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
1723 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
7c673cae | 1724 | */ |
11fdf7f2 TL |
1725 | static jclass getJClass(JNIEnv* env) { |
1726 | return RocksDBNativeClass::getJClass(env, "org/rocksdb/FlushOptions"); | |
7c673cae | 1727 | } |
11fdf7f2 | 1728 | }; |
7c673cae | 1729 | |
11fdf7f2 TL |
1730 | // The portal class for org.rocksdb.ComparatorOptions |
1731 | class ComparatorOptionsJni : public RocksDBNativeClass< | |
1732 | rocksdb::ComparatorJniCallbackOptions*, ComparatorOptionsJni> { | |
1733 | public: | |
7c673cae | 1734 | /** |
11fdf7f2 | 1735 | * Get the Java Class org.rocksdb.ComparatorOptions |
7c673cae FG |
1736 | * |
1737 | * @param env A pointer to the Java environment | |
1738 | * | |
11fdf7f2 TL |
1739 | * @return The Java Class or nullptr if one of the |
1740 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
1741 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
7c673cae | 1742 | */ |
11fdf7f2 TL |
1743 | static jclass getJClass(JNIEnv* env) { |
1744 | return RocksDBNativeClass::getJClass(env, "org/rocksdb/ComparatorOptions"); | |
7c673cae | 1745 | } |
11fdf7f2 | 1746 | }; |
7c673cae | 1747 | |
11fdf7f2 TL |
1748 | // The portal class for org.rocksdb.AbstractCompactionFilterFactory |
1749 | class AbstractCompactionFilterFactoryJni : public RocksDBNativeClass< | |
1750 | const rocksdb::CompactionFilterFactoryJniCallback*, | |
1751 | AbstractCompactionFilterFactoryJni> { | |
1752 | public: | |
7c673cae | 1753 | /** |
11fdf7f2 | 1754 | * Get the Java Class org.rocksdb.AbstractCompactionFilterFactory |
7c673cae FG |
1755 | * |
1756 | * @param env A pointer to the Java environment | |
1757 | * | |
11fdf7f2 TL |
1758 | * @return The Java Class or nullptr if one of the |
1759 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
1760 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
7c673cae | 1761 | */ |
11fdf7f2 TL |
1762 | static jclass getJClass(JNIEnv* env) { |
1763 | return RocksDBNativeClass::getJClass(env, | |
1764 | "org/rocksdb/AbstractCompactionFilterFactory"); | |
7c673cae FG |
1765 | } |
1766 | ||
1767 | /** | |
11fdf7f2 | 1768 | * Get the Java Method: AbstractCompactionFilterFactory#name |
7c673cae FG |
1769 | * |
1770 | * @param env A pointer to the Java environment | |
1771 | * | |
1772 | * @return The Java Method ID or nullptr if the class or method id could not | |
1773 | * be retieved | |
1774 | */ | |
11fdf7f2 TL |
1775 | static jmethodID getNameMethodId(JNIEnv* env) { |
1776 | jclass jclazz = getJClass(env); | |
1777 | if(jclazz == nullptr) { | |
7c673cae FG |
1778 | // exception occurred accessing class |
1779 | return nullptr; | |
1780 | } | |
11fdf7f2 TL |
1781 | |
1782 | static jmethodID mid = env->GetMethodID( | |
1783 | jclazz, "name", "()Ljava/lang/String;"); | |
7c673cae FG |
1784 | assert(mid != nullptr); |
1785 | return mid; | |
1786 | } | |
1787 | ||
1788 | /** | |
11fdf7f2 | 1789 | * Get the Java Method: AbstractCompactionFilterFactory#createCompactionFilter |
7c673cae FG |
1790 | * |
1791 | * @param env A pointer to the Java environment | |
1792 | * | |
1793 | * @return The Java Method ID or nullptr if the class or method id could not | |
1794 | * be retieved | |
1795 | */ | |
11fdf7f2 TL |
1796 | static jmethodID getCreateCompactionFilterMethodId(JNIEnv* env) { |
1797 | jclass jclazz = getJClass(env); | |
1798 | if(jclazz == nullptr) { | |
7c673cae FG |
1799 | // exception occurred accessing class |
1800 | return nullptr; | |
1801 | } | |
1802 | ||
11fdf7f2 TL |
1803 | static jmethodID mid = env->GetMethodID(jclazz, |
1804 | "createCompactionFilter", | |
1805 | "(ZZ)J"); | |
7c673cae FG |
1806 | assert(mid != nullptr); |
1807 | return mid; | |
1808 | } | |
1809 | }; | |
1810 | ||
11fdf7f2 TL |
1811 | // The portal class for org.rocksdb.AbstractTransactionNotifier |
1812 | class AbstractTransactionNotifierJni : public RocksDBNativeClass< | |
1813 | const rocksdb::TransactionNotifierJniCallback*, | |
1814 | AbstractTransactionNotifierJni> { | |
7c673cae | 1815 | public: |
7c673cae | 1816 | static jclass getJClass(JNIEnv* env) { |
11fdf7f2 TL |
1817 | return RocksDBNativeClass::getJClass(env, |
1818 | "org/rocksdb/AbstractTransactionNotifier"); | |
7c673cae FG |
1819 | } |
1820 | ||
11fdf7f2 TL |
1821 | // Get the java method `snapshotCreated` |
1822 | // of org.rocksdb.AbstractTransactionNotifier. | |
1823 | static jmethodID getSnapshotCreatedMethodId(JNIEnv* env) { | |
1824 | jclass jclazz = getJClass(env); | |
1825 | if(jclazz == nullptr) { | |
1826 | // exception occurred accessing class | |
1827 | return nullptr; | |
1828 | } | |
1829 | ||
1830 | static jmethodID mid = env->GetMethodID(jclazz, "snapshotCreated", "(J)V"); | |
1831 | assert(mid != nullptr); | |
1832 | return mid; | |
1833 | } | |
1834 | }; | |
1835 | ||
1836 | // The portal class for org.rocksdb.AbstractComparator | |
1837 | class AbstractComparatorJni : public RocksDBNativeClass< | |
1838 | const rocksdb::BaseComparatorJniCallback*, | |
1839 | AbstractComparatorJni> { | |
1840 | public: | |
7c673cae | 1841 | /** |
11fdf7f2 | 1842 | * Get the Java Class org.rocksdb.AbstractComparator |
7c673cae FG |
1843 | * |
1844 | * @param env A pointer to the Java environment | |
1845 | * | |
1846 | * @return The Java Class or nullptr if one of the | |
1847 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
1848 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
1849 | */ | |
11fdf7f2 TL |
1850 | static jclass getJClass(JNIEnv* env) { |
1851 | return RocksDBNativeClass::getJClass(env, | |
1852 | "org/rocksdb/AbstractComparator"); | |
7c673cae FG |
1853 | } |
1854 | ||
1855 | /** | |
11fdf7f2 | 1856 | * Get the Java Method: Comparator#name |
7c673cae FG |
1857 | * |
1858 | * @param env A pointer to the Java environment | |
7c673cae | 1859 | * |
11fdf7f2 TL |
1860 | * @return The Java Method ID or nullptr if the class or method id could not |
1861 | * be retieved | |
7c673cae | 1862 | */ |
11fdf7f2 TL |
1863 | static jmethodID getNameMethodId(JNIEnv* env) { |
1864 | jclass jclazz = getJClass(env); | |
1865 | if(jclazz == nullptr) { | |
7c673cae FG |
1866 | // exception occurred accessing class |
1867 | return nullptr; | |
1868 | } | |
1869 | ||
11fdf7f2 TL |
1870 | static jmethodID mid = |
1871 | env->GetMethodID(jclazz, "name", "()Ljava/lang/String;"); | |
1872 | assert(mid != nullptr); | |
1873 | return mid; | |
7c673cae FG |
1874 | } |
1875 | ||
1876 | /** | |
11fdf7f2 | 1877 | * Get the Java Method: Comparator#compare |
7c673cae FG |
1878 | * |
1879 | * @param env A pointer to the Java environment | |
1880 | * | |
1881 | * @return The Java Method ID or nullptr if the class or method id could not | |
1882 | * be retieved | |
1883 | */ | |
11fdf7f2 TL |
1884 | static jmethodID getCompareMethodId(JNIEnv* env) { |
1885 | jclass jclazz = getJClass(env); | |
1886 | if(jclazz == nullptr) { | |
7c673cae FG |
1887 | // exception occurred accessing class |
1888 | return nullptr; | |
1889 | } | |
1890 | ||
11fdf7f2 TL |
1891 | static jmethodID mid = |
1892 | env->GetMethodID(jclazz, "compare", | |
1893 | "(Lorg/rocksdb/AbstractSlice;Lorg/rocksdb/AbstractSlice;)I"); | |
7c673cae FG |
1894 | assert(mid != nullptr); |
1895 | return mid; | |
1896 | } | |
7c673cae | 1897 | |
7c673cae | 1898 | /** |
11fdf7f2 | 1899 | * Get the Java Method: Comparator#findShortestSeparator |
7c673cae FG |
1900 | * |
1901 | * @param env A pointer to the Java environment | |
1902 | * | |
11fdf7f2 TL |
1903 | * @return The Java Method ID or nullptr if the class or method id could not |
1904 | * be retieved | |
7c673cae | 1905 | */ |
11fdf7f2 TL |
1906 | static jmethodID getFindShortestSeparatorMethodId(JNIEnv* env) { |
1907 | jclass jclazz = getJClass(env); | |
1908 | if(jclazz == nullptr) { | |
1909 | // exception occurred accessing class | |
1910 | return nullptr; | |
1911 | } | |
1912 | ||
1913 | static jmethodID mid = | |
1914 | env->GetMethodID(jclazz, "findShortestSeparator", | |
1915 | "(Ljava/lang/String;Lorg/rocksdb/AbstractSlice;)Ljava/lang/String;"); | |
1916 | assert(mid != nullptr); | |
1917 | return mid; | |
7c673cae FG |
1918 | } |
1919 | ||
1920 | /** | |
11fdf7f2 | 1921 | * Get the Java Method: Comparator#findShortSuccessor |
7c673cae FG |
1922 | * |
1923 | * @param env A pointer to the Java environment | |
1924 | * | |
1925 | * @return The Java Method ID or nullptr if the class or method id could not | |
1926 | * be retieved | |
1927 | */ | |
11fdf7f2 | 1928 | static jmethodID getFindShortSuccessorMethodId(JNIEnv* env) { |
7c673cae FG |
1929 | jclass jclazz = getJClass(env); |
1930 | if(jclazz == nullptr) { | |
1931 | // exception occurred accessing class | |
1932 | return nullptr; | |
1933 | } | |
1934 | ||
1935 | static jmethodID mid = | |
11fdf7f2 TL |
1936 | env->GetMethodID(jclazz, "findShortSuccessor", |
1937 | "(Ljava/lang/String;)Ljava/lang/String;"); | |
7c673cae FG |
1938 | assert(mid != nullptr); |
1939 | return mid; | |
1940 | } | |
11fdf7f2 | 1941 | }; |
7c673cae | 1942 | |
11fdf7f2 TL |
1943 | // The portal class for org.rocksdb.AbstractSlice |
1944 | class AbstractSliceJni : public NativeRocksMutableObject< | |
1945 | const rocksdb::Slice*, AbstractSliceJni> { | |
1946 | public: | |
7c673cae | 1947 | /** |
11fdf7f2 | 1948 | * Get the Java Class org.rocksdb.AbstractSlice |
7c673cae FG |
1949 | * |
1950 | * @param env A pointer to the Java environment | |
7c673cae | 1951 | * |
11fdf7f2 TL |
1952 | * @return The Java Class or nullptr if one of the |
1953 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
1954 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
7c673cae | 1955 | */ |
11fdf7f2 TL |
1956 | static jclass getJClass(JNIEnv* env) { |
1957 | return RocksDBNativeClass::getJClass(env, "org/rocksdb/AbstractSlice"); | |
7c673cae FG |
1958 | } |
1959 | }; | |
1960 | ||
11fdf7f2 TL |
1961 | // The portal class for org.rocksdb.Slice |
1962 | class SliceJni : public NativeRocksMutableObject< | |
1963 | const rocksdb::Slice*, AbstractSliceJni> { | |
7c673cae FG |
1964 | public: |
1965 | /** | |
11fdf7f2 | 1966 | * Get the Java Class org.rocksdb.Slice |
7c673cae FG |
1967 | * |
1968 | * @param env A pointer to the Java environment | |
1969 | * | |
1970 | * @return The Java Class or nullptr if one of the | |
1971 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
1972 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
1973 | */ | |
1974 | static jclass getJClass(JNIEnv* env) { | |
11fdf7f2 | 1975 | return RocksDBNativeClass::getJClass(env, "org/rocksdb/Slice"); |
7c673cae FG |
1976 | } |
1977 | ||
1978 | /** | |
11fdf7f2 | 1979 | * Constructs a Slice object |
7c673cae FG |
1980 | * |
1981 | * @param env A pointer to the Java environment | |
7c673cae | 1982 | * |
11fdf7f2 | 1983 | * @return A reference to a Java Slice object, or a nullptr if an |
7c673cae FG |
1984 | * exception occurs |
1985 | */ | |
11fdf7f2 | 1986 | static jobject construct0(JNIEnv* env) { |
7c673cae FG |
1987 | jclass jclazz = getJClass(env); |
1988 | if(jclazz == nullptr) { | |
1989 | // exception occurred accessing class | |
1990 | return nullptr; | |
1991 | } | |
1992 | ||
11fdf7f2 | 1993 | static jmethodID mid = env->GetMethodID(jclazz, "<init>", "()V"); |
7c673cae FG |
1994 | if(mid == nullptr) { |
1995 | // exception occurred accessing method | |
1996 | return nullptr; | |
1997 | } | |
1998 | ||
11fdf7f2 | 1999 | jobject jslice = env->NewObject(jclazz, mid); |
7c673cae FG |
2000 | if(env->ExceptionCheck()) { |
2001 | return nullptr; | |
2002 | } | |
2003 | ||
11fdf7f2 | 2004 | return jslice; |
7c673cae FG |
2005 | } |
2006 | }; | |
2007 | ||
11fdf7f2 TL |
2008 | // The portal class for org.rocksdb.DirectSlice |
2009 | class DirectSliceJni : public NativeRocksMutableObject< | |
2010 | const rocksdb::Slice*, AbstractSliceJni> { | |
7c673cae FG |
2011 | public: |
2012 | /** | |
11fdf7f2 | 2013 | * Get the Java Class org.rocksdb.DirectSlice |
7c673cae FG |
2014 | * |
2015 | * @param env A pointer to the Java environment | |
7c673cae | 2016 | * |
11fdf7f2 TL |
2017 | * @return The Java Class or nullptr if one of the |
2018 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
2019 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
7c673cae | 2020 | */ |
11fdf7f2 TL |
2021 | static jclass getJClass(JNIEnv* env) { |
2022 | return RocksDBNativeClass::getJClass(env, "org/rocksdb/DirectSlice"); | |
2023 | } | |
2024 | ||
2025 | /** | |
2026 | * Constructs a DirectSlice object | |
2027 | * | |
2028 | * @param env A pointer to the Java environment | |
2029 | * | |
2030 | * @return A reference to a Java DirectSlice object, or a nullptr if an | |
2031 | * exception occurs | |
2032 | */ | |
2033 | static jobject construct0(JNIEnv* env) { | |
2034 | jclass jclazz = getJClass(env); | |
2035 | if(jclazz == nullptr) { | |
7c673cae FG |
2036 | // exception occurred accessing class |
2037 | return nullptr; | |
2038 | } | |
2039 | ||
11fdf7f2 TL |
2040 | static jmethodID mid = env->GetMethodID(jclazz, "<init>", "()V"); |
2041 | if(mid == nullptr) { | |
7c673cae FG |
2042 | // exception occurred accessing method |
2043 | return nullptr; | |
2044 | } | |
2045 | ||
11fdf7f2 TL |
2046 | jobject jdirect_slice = env->NewObject(jclazz, mid); |
2047 | if(env->ExceptionCheck()) { | |
7c673cae FG |
2048 | return nullptr; |
2049 | } | |
2050 | ||
11fdf7f2 TL |
2051 | return jdirect_slice; |
2052 | } | |
2053 | }; | |
2054 | ||
2055 | // The portal class for java.util.List | |
2056 | class ListJni : public JavaClass { | |
2057 | public: | |
2058 | /** | |
2059 | * Get the Java Class java.util.List | |
2060 | * | |
2061 | * @param env A pointer to the Java environment | |
2062 | * | |
2063 | * @return The Java Class or nullptr if one of the | |
2064 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
2065 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
2066 | */ | |
2067 | static jclass getListClass(JNIEnv* env) { | |
2068 | return JavaClass::getJClass(env, "java/util/List"); | |
2069 | } | |
2070 | ||
2071 | /** | |
2072 | * Get the Java Class java.util.ArrayList | |
2073 | * | |
2074 | * @param env A pointer to the Java environment | |
2075 | * | |
2076 | * @return The Java Class or nullptr if one of the | |
2077 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
2078 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
2079 | */ | |
2080 | static jclass getArrayListClass(JNIEnv* env) { | |
2081 | return JavaClass::getJClass(env, "java/util/ArrayList"); | |
2082 | } | |
2083 | ||
2084 | /** | |
2085 | * Get the Java Class java.util.Iterator | |
2086 | * | |
2087 | * @param env A pointer to the Java environment | |
2088 | * | |
2089 | * @return The Java Class or nullptr if one of the | |
2090 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
2091 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
2092 | */ | |
2093 | static jclass getIteratorClass(JNIEnv* env) { | |
2094 | return JavaClass::getJClass(env, "java/util/Iterator"); | |
2095 | } | |
2096 | ||
2097 | /** | |
2098 | * Get the Java Method: List#iterator | |
2099 | * | |
2100 | * @param env A pointer to the Java environment | |
2101 | * | |
2102 | * @return The Java Method ID or nullptr if the class or method id could not | |
2103 | * be retieved | |
2104 | */ | |
2105 | static jmethodID getIteratorMethod(JNIEnv* env) { | |
2106 | jclass jlist_clazz = getListClass(env); | |
2107 | if(jlist_clazz == nullptr) { | |
2108 | // exception occurred accessing class | |
7c673cae FG |
2109 | return nullptr; |
2110 | } | |
2111 | ||
11fdf7f2 TL |
2112 | static jmethodID mid = |
2113 | env->GetMethodID(jlist_clazz, "iterator", "()Ljava/util/Iterator;"); | |
2114 | assert(mid != nullptr); | |
2115 | return mid; | |
2116 | } | |
7c673cae | 2117 | |
11fdf7f2 TL |
2118 | /** |
2119 | * Get the Java Method: Iterator#hasNext | |
2120 | * | |
2121 | * @param env A pointer to the Java environment | |
2122 | * | |
2123 | * @return The Java Method ID or nullptr if the class or method id could not | |
2124 | * be retieved | |
2125 | */ | |
2126 | static jmethodID getHasNextMethod(JNIEnv* env) { | |
2127 | jclass jiterator_clazz = getIteratorClass(env); | |
2128 | if(jiterator_clazz == nullptr) { | |
2129 | // exception occurred accessing class | |
2130 | return nullptr; | |
2131 | } | |
7c673cae | 2132 | |
11fdf7f2 TL |
2133 | static jmethodID mid = env->GetMethodID(jiterator_clazz, "hasNext", "()Z"); |
2134 | assert(mid != nullptr); | |
2135 | return mid; | |
2136 | } | |
2137 | ||
2138 | /** | |
2139 | * Get the Java Method: Iterator#next | |
2140 | * | |
2141 | * @param env A pointer to the Java environment | |
2142 | * | |
2143 | * @return The Java Method ID or nullptr if the class or method id could not | |
2144 | * be retieved | |
2145 | */ | |
2146 | static jmethodID getNextMethod(JNIEnv* env) { | |
2147 | jclass jiterator_clazz = getIteratorClass(env); | |
2148 | if(jiterator_clazz == nullptr) { | |
2149 | // exception occurred accessing class | |
2150 | return nullptr; | |
7c673cae FG |
2151 | } |
2152 | ||
11fdf7f2 TL |
2153 | static jmethodID mid = |
2154 | env->GetMethodID(jiterator_clazz, "next", "()Ljava/lang/Object;"); | |
2155 | assert(mid != nullptr); | |
2156 | return mid; | |
2157 | } | |
2158 | ||
2159 | /** | |
2160 | * Get the Java Method: ArrayList constructor | |
2161 | * | |
2162 | * @param env A pointer to the Java environment | |
2163 | * | |
2164 | * @return The Java Method ID or nullptr if the class or method id could not | |
2165 | * be retieved | |
2166 | */ | |
2167 | static jmethodID getArrayListConstructorMethodId(JNIEnv* env) { | |
2168 | jclass jarray_list_clazz = getArrayListClass(env); | |
2169 | if(jarray_list_clazz == nullptr) { | |
2170 | // exception occurred accessing class | |
2171 | return nullptr; | |
2172 | } | |
2173 | static jmethodID mid = | |
2174 | env->GetMethodID(jarray_list_clazz, "<init>", "(I)V"); | |
2175 | assert(mid != nullptr); | |
2176 | return mid; | |
2177 | } | |
2178 | ||
2179 | /** | |
2180 | * Get the Java Method: List#add | |
2181 | * | |
2182 | * @param env A pointer to the Java environment | |
2183 | * | |
2184 | * @return The Java Method ID or nullptr if the class or method id could not | |
2185 | * be retieved | |
2186 | */ | |
2187 | static jmethodID getListAddMethodId(JNIEnv* env) { | |
2188 | jclass jlist_clazz = getListClass(env); | |
2189 | if(jlist_clazz == nullptr) { | |
2190 | // exception occurred accessing class | |
2191 | return nullptr; | |
2192 | } | |
2193 | ||
2194 | static jmethodID mid = | |
2195 | env->GetMethodID(jlist_clazz, "add", "(Ljava/lang/Object;)Z"); | |
2196 | assert(mid != nullptr); | |
2197 | return mid; | |
7c673cae FG |
2198 | } |
2199 | }; | |
2200 | ||
11fdf7f2 TL |
2201 | // The portal class for java.lang.Byte |
2202 | class ByteJni : public JavaClass { | |
7c673cae FG |
2203 | public: |
2204 | /** | |
11fdf7f2 | 2205 | * Get the Java Class java.lang.Byte |
7c673cae FG |
2206 | * |
2207 | * @param env A pointer to the Java environment | |
2208 | * | |
2209 | * @return The Java Class or nullptr if one of the | |
2210 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
2211 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
2212 | */ | |
2213 | static jclass getJClass(JNIEnv* env) { | |
11fdf7f2 | 2214 | return JavaClass::getJClass(env, "java/lang/Byte"); |
7c673cae FG |
2215 | } |
2216 | ||
2217 | /** | |
11fdf7f2 | 2218 | * Get the Java Class byte[] |
7c673cae FG |
2219 | * |
2220 | * @param env A pointer to the Java environment | |
2221 | * | |
11fdf7f2 TL |
2222 | * @return The Java Class or nullptr if one of the |
2223 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
2224 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
2225 | */ | |
2226 | static jclass getArrayJClass(JNIEnv* env) { | |
2227 | return JavaClass::getJClass(env, "[B"); | |
2228 | } | |
2229 | ||
2230 | /** | |
2231 | * Creates a new 2-dimensional Java Byte Array byte[][] | |
2232 | * | |
2233 | * @param env A pointer to the Java environment | |
2234 | * @param len The size of the first dimension | |
2235 | * | |
2236 | * @return A reference to the Java byte[][] or nullptr if an exception occurs | |
2237 | */ | |
2238 | static jobjectArray new2dByteArray(JNIEnv* env, const jsize len) { | |
2239 | jclass clazz = getArrayJClass(env); | |
2240 | if(clazz == nullptr) { | |
2241 | // exception occurred accessing class | |
2242 | return nullptr; | |
2243 | } | |
2244 | ||
2245 | return env->NewObjectArray(len, clazz, nullptr); | |
2246 | } | |
2247 | ||
2248 | /** | |
2249 | * Get the Java Method: Byte#byteValue | |
2250 | * | |
2251 | * @param env A pointer to the Java environment | |
2252 | * | |
2253 | * @return The Java Method ID or nullptr if the class or method id could not | |
7c673cae FG |
2254 | * be retieved |
2255 | */ | |
11fdf7f2 TL |
2256 | static jmethodID getByteValueMethod(JNIEnv* env) { |
2257 | jclass clazz = getJClass(env); | |
2258 | if(clazz == nullptr) { | |
7c673cae FG |
2259 | // exception occurred accessing class |
2260 | return nullptr; | |
2261 | } | |
2262 | ||
11fdf7f2 TL |
2263 | static jmethodID mid = env->GetMethodID(clazz, "byteValue", "()B"); |
2264 | assert(mid != nullptr); | |
2265 | return mid; | |
7c673cae | 2266 | } |
11fdf7f2 | 2267 | }; |
7c673cae | 2268 | |
11fdf7f2 TL |
2269 | // The portal class for java.lang.StringBuilder |
2270 | class StringBuilderJni : public JavaClass { | |
2271 | public: | |
7c673cae | 2272 | /** |
11fdf7f2 | 2273 | * Get the Java Class java.lang.StringBuilder |
7c673cae | 2274 | * |
11fdf7f2 | 2275 | * @param env A pointer to the Java environment |
7c673cae | 2276 | * |
11fdf7f2 TL |
2277 | * @return The Java Class or nullptr if one of the |
2278 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
2279 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
7c673cae | 2280 | */ |
11fdf7f2 TL |
2281 | static jclass getJClass(JNIEnv* env) { |
2282 | return JavaClass::getJClass(env, "java/lang/StringBuilder"); | |
2283 | } | |
7c673cae | 2284 | |
11fdf7f2 TL |
2285 | /** |
2286 | * Get the Java Method: StringBuilder#append | |
2287 | * | |
2288 | * @param env A pointer to the Java environment | |
2289 | * | |
2290 | * @return The Java Method ID or nullptr if the class or method id could not | |
2291 | * be retieved | |
2292 | */ | |
2293 | static jmethodID getListAddMethodId(JNIEnv* env) { | |
2294 | jclass jclazz = getJClass(env); | |
2295 | if(jclazz == nullptr) { | |
2296 | // exception occurred accessing class | |
7c673cae FG |
2297 | return nullptr; |
2298 | } | |
11fdf7f2 TL |
2299 | |
2300 | static jmethodID mid = | |
2301 | env->GetMethodID(jclazz, "append", | |
2302 | "(Ljava/lang/String;)Ljava/lang/StringBuilder;"); | |
2303 | assert(mid != nullptr); | |
2304 | return mid; | |
2305 | } | |
2306 | ||
2307 | /** | |
2308 | * Appends a C-style string to a StringBuilder | |
2309 | * | |
2310 | * @param env A pointer to the Java environment | |
2311 | * @param jstring_builder Reference to a java.lang.StringBuilder | |
2312 | * @param c_str A C-style string to append to the StringBuilder | |
2313 | * | |
2314 | * @return A reference to the updated StringBuilder, or a nullptr if | |
2315 | * an exception occurs | |
2316 | */ | |
2317 | static jobject append(JNIEnv* env, jobject jstring_builder, | |
2318 | const char* c_str) { | |
2319 | jmethodID mid = getListAddMethodId(env); | |
2320 | if(mid == nullptr) { | |
2321 | // exception occurred accessing class or method | |
2322 | return nullptr; | |
2323 | } | |
2324 | ||
2325 | jstring new_value_str = env->NewStringUTF(c_str); | |
2326 | if(new_value_str == nullptr) { | |
2327 | // exception thrown: OutOfMemoryError | |
2328 | return nullptr; | |
2329 | } | |
2330 | ||
2331 | jobject jresult_string_builder = | |
2332 | env->CallObjectMethod(jstring_builder, mid, new_value_str); | |
2333 | if(env->ExceptionCheck()) { | |
2334 | // exception occurred | |
2335 | env->DeleteLocalRef(new_value_str); | |
2336 | return nullptr; | |
2337 | } | |
2338 | ||
2339 | return jresult_string_builder; | |
2340 | } | |
2341 | }; | |
2342 | ||
2343 | // The portal class for org.rocksdb.BackupInfo | |
2344 | class BackupInfoJni : public JavaClass { | |
2345 | public: | |
2346 | /** | |
2347 | * Get the Java Class org.rocksdb.BackupInfo | |
2348 | * | |
2349 | * @param env A pointer to the Java environment | |
2350 | * | |
2351 | * @return The Java Class or nullptr if one of the | |
2352 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
2353 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
2354 | */ | |
2355 | static jclass getJClass(JNIEnv* env) { | |
2356 | return JavaClass::getJClass(env, "org/rocksdb/BackupInfo"); | |
2357 | } | |
2358 | ||
2359 | /** | |
2360 | * Constructs a BackupInfo object | |
2361 | * | |
2362 | * @param env A pointer to the Java environment | |
2363 | * @param backup_id id of the backup | |
2364 | * @param timestamp timestamp of the backup | |
2365 | * @param size size of the backup | |
2366 | * @param number_files number of files related to the backup | |
2367 | * @param app_metadata application specific metadata | |
2368 | * | |
2369 | * @return A reference to a Java BackupInfo object, or a nullptr if an | |
2370 | * exception occurs | |
2371 | */ | |
2372 | static jobject construct0(JNIEnv* env, uint32_t backup_id, int64_t timestamp, | |
2373 | uint64_t size, uint32_t number_files, | |
2374 | const std::string& app_metadata) { | |
2375 | jclass jclazz = getJClass(env); | |
2376 | if(jclazz == nullptr) { | |
2377 | // exception occurred accessing class | |
2378 | return nullptr; | |
2379 | } | |
2380 | ||
2381 | static jmethodID mid = | |
2382 | env->GetMethodID(jclazz, "<init>", "(IJJILjava/lang/String;)V"); | |
2383 | if(mid == nullptr) { | |
2384 | // exception occurred accessing method | |
2385 | return nullptr; | |
2386 | } | |
2387 | ||
2388 | jstring japp_metadata = nullptr; | |
2389 | if (app_metadata != nullptr) { | |
2390 | japp_metadata = env->NewStringUTF(app_metadata.c_str()); | |
2391 | if (japp_metadata == nullptr) { | |
2392 | // exception occurred creating java string | |
2393 | return nullptr; | |
2394 | } | |
2395 | } | |
2396 | ||
2397 | jobject jbackup_info = env->NewObject(jclazz, mid, backup_id, timestamp, | |
2398 | size, number_files, japp_metadata); | |
2399 | if(env->ExceptionCheck()) { | |
2400 | env->DeleteLocalRef(japp_metadata); | |
2401 | return nullptr; | |
2402 | } | |
2403 | ||
2404 | return jbackup_info; | |
2405 | } | |
2406 | }; | |
2407 | ||
2408 | class BackupInfoListJni { | |
2409 | public: | |
2410 | /** | |
2411 | * Converts a C++ std::vector<BackupInfo> object to | |
2412 | * a Java ArrayList<org.rocksdb.BackupInfo> object | |
2413 | * | |
2414 | * @param env A pointer to the Java environment | |
2415 | * @param backup_infos A vector of BackupInfo | |
2416 | * | |
2417 | * @return Either a reference to a Java ArrayList object, or a nullptr | |
2418 | * if an exception occurs | |
2419 | */ | |
2420 | static jobject getBackupInfo(JNIEnv* env, | |
2421 | std::vector<BackupInfo> backup_infos) { | |
2422 | jclass jarray_list_clazz = rocksdb::ListJni::getArrayListClass(env); | |
2423 | if(jarray_list_clazz == nullptr) { | |
2424 | // exception occurred accessing class | |
2425 | return nullptr; | |
2426 | } | |
2427 | ||
2428 | jmethodID cstr_mid = rocksdb::ListJni::getArrayListConstructorMethodId(env); | |
2429 | if(cstr_mid == nullptr) { | |
2430 | // exception occurred accessing method | |
2431 | return nullptr; | |
2432 | } | |
2433 | ||
2434 | jmethodID add_mid = rocksdb::ListJni::getListAddMethodId(env); | |
2435 | if(add_mid == nullptr) { | |
2436 | // exception occurred accessing method | |
2437 | return nullptr; | |
2438 | } | |
2439 | ||
2440 | // create java list | |
2441 | jobject jbackup_info_handle_list = | |
2442 | env->NewObject(jarray_list_clazz, cstr_mid, backup_infos.size()); | |
2443 | if(env->ExceptionCheck()) { | |
2444 | // exception occurred constructing object | |
2445 | return nullptr; | |
2446 | } | |
2447 | ||
2448 | // insert in java list | |
2449 | auto end = backup_infos.end(); | |
2450 | for (auto it = backup_infos.begin(); it != end; ++it) { | |
2451 | auto backup_info = *it; | |
2452 | ||
2453 | jobject obj = rocksdb::BackupInfoJni::construct0( | |
2454 | env, backup_info.backup_id, backup_info.timestamp, backup_info.size, | |
2455 | backup_info.number_files, backup_info.app_metadata); | |
2456 | if(env->ExceptionCheck()) { | |
2457 | // exception occurred constructing object | |
2458 | if(obj != nullptr) { | |
2459 | env->DeleteLocalRef(obj); | |
2460 | } | |
2461 | if(jbackup_info_handle_list != nullptr) { | |
2462 | env->DeleteLocalRef(jbackup_info_handle_list); | |
2463 | } | |
2464 | return nullptr; | |
2465 | } | |
2466 | ||
2467 | jboolean rs = | |
2468 | env->CallBooleanMethod(jbackup_info_handle_list, add_mid, obj); | |
2469 | if(env->ExceptionCheck() || rs == JNI_FALSE) { | |
2470 | // exception occurred calling method, or could not add | |
2471 | if(obj != nullptr) { | |
2472 | env->DeleteLocalRef(obj); | |
2473 | } | |
2474 | if(jbackup_info_handle_list != nullptr) { | |
2475 | env->DeleteLocalRef(jbackup_info_handle_list); | |
2476 | } | |
2477 | return nullptr; | |
2478 | } | |
2479 | } | |
2480 | ||
2481 | return jbackup_info_handle_list; | |
2482 | } | |
2483 | }; | |
2484 | ||
2485 | // The portal class for org.rocksdb.WBWIRocksIterator | |
2486 | class WBWIRocksIteratorJni : public JavaClass { | |
2487 | public: | |
2488 | /** | |
2489 | * Get the Java Class org.rocksdb.WBWIRocksIterator | |
2490 | * | |
2491 | * @param env A pointer to the Java environment | |
2492 | * | |
2493 | * @return The Java Class or nullptr if one of the | |
2494 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
2495 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
2496 | */ | |
2497 | static jclass getJClass(JNIEnv* env) { | |
2498 | return JavaClass::getJClass(env, "org/rocksdb/WBWIRocksIterator"); | |
2499 | } | |
2500 | ||
2501 | /** | |
2502 | * Get the Java Field: WBWIRocksIterator#entry | |
2503 | * | |
2504 | * @param env A pointer to the Java environment | |
2505 | * | |
2506 | * @return The Java Field ID or nullptr if the class or field id could not | |
2507 | * be retieved | |
2508 | */ | |
2509 | static jfieldID getWriteEntryField(JNIEnv* env) { | |
2510 | jclass jclazz = getJClass(env); | |
2511 | if(jclazz == nullptr) { | |
2512 | // exception occurred accessing class | |
2513 | return nullptr; | |
2514 | } | |
2515 | ||
2516 | static jfieldID fid = | |
2517 | env->GetFieldID(jclazz, "entry", | |
2518 | "Lorg/rocksdb/WBWIRocksIterator$WriteEntry;"); | |
2519 | assert(fid != nullptr); | |
2520 | return fid; | |
2521 | } | |
2522 | ||
2523 | /** | |
2524 | * Gets the value of the WBWIRocksIterator#entry | |
2525 | * | |
2526 | * @param env A pointer to the Java environment | |
2527 | * @param jwbwi_rocks_iterator A reference to a WBWIIterator | |
2528 | * | |
2529 | * @return A reference to a Java WBWIRocksIterator.WriteEntry object, or | |
2530 | * a nullptr if an exception occurs | |
2531 | */ | |
2532 | static jobject getWriteEntry(JNIEnv* env, jobject jwbwi_rocks_iterator) { | |
2533 | assert(jwbwi_rocks_iterator != nullptr); | |
2534 | ||
2535 | jfieldID jwrite_entry_field = getWriteEntryField(env); | |
2536 | if(jwrite_entry_field == nullptr) { | |
2537 | // exception occurred accessing the field | |
2538 | return nullptr; | |
2539 | } | |
2540 | ||
2541 | jobject jwe = env->GetObjectField(jwbwi_rocks_iterator, jwrite_entry_field); | |
2542 | assert(jwe != nullptr); | |
2543 | return jwe; | |
2544 | } | |
2545 | }; | |
2546 | ||
2547 | // The portal class for org.rocksdb.WBWIRocksIterator.WriteType | |
2548 | class WriteTypeJni : public JavaClass { | |
2549 | public: | |
2550 | /** | |
2551 | * Get the PUT enum field value of WBWIRocksIterator.WriteType | |
2552 | * | |
2553 | * @param env A pointer to the Java environment | |
2554 | * | |
2555 | * @return A reference to the enum field value or a nullptr if | |
2556 | * the enum field value could not be retrieved | |
2557 | */ | |
2558 | static jobject PUT(JNIEnv* env) { | |
2559 | return getEnum(env, "PUT"); | |
2560 | } | |
2561 | ||
2562 | /** | |
2563 | * Get the MERGE enum field value of WBWIRocksIterator.WriteType | |
2564 | * | |
2565 | * @param env A pointer to the Java environment | |
2566 | * | |
2567 | * @return A reference to the enum field value or a nullptr if | |
2568 | * the enum field value could not be retrieved | |
2569 | */ | |
2570 | static jobject MERGE(JNIEnv* env) { | |
2571 | return getEnum(env, "MERGE"); | |
2572 | } | |
2573 | ||
2574 | /** | |
2575 | * Get the DELETE enum field value of WBWIRocksIterator.WriteType | |
2576 | * | |
2577 | * @param env A pointer to the Java environment | |
2578 | * | |
2579 | * @return A reference to the enum field value or a nullptr if | |
2580 | * the enum field value could not be retrieved | |
2581 | */ | |
2582 | static jobject DELETE(JNIEnv* env) { | |
2583 | return getEnum(env, "DELETE"); | |
2584 | } | |
2585 | ||
2586 | /** | |
2587 | * Get the LOG enum field value of WBWIRocksIterator.WriteType | |
2588 | * | |
2589 | * @param env A pointer to the Java environment | |
2590 | * | |
2591 | * @return A reference to the enum field value or a nullptr if | |
2592 | * the enum field value could not be retrieved | |
2593 | */ | |
2594 | static jobject LOG(JNIEnv* env) { | |
2595 | return getEnum(env, "LOG"); | |
2596 | } | |
2597 | ||
2598 | // Returns the equivalent org.rocksdb.WBWIRocksIterator.WriteType for the | |
2599 | // provided C++ rocksdb::WriteType enum | |
2600 | static jbyte toJavaWriteType(const rocksdb::WriteType& writeType) { | |
2601 | switch (writeType) { | |
2602 | case rocksdb::WriteType::kPutRecord: | |
2603 | return 0x0; | |
2604 | case rocksdb::WriteType::kMergeRecord: | |
2605 | return 0x1; | |
2606 | case rocksdb::WriteType::kDeleteRecord: | |
2607 | return 0x2; | |
2608 | case rocksdb::WriteType::kSingleDeleteRecord: | |
2609 | return 0x3; | |
2610 | case rocksdb::WriteType::kDeleteRangeRecord: | |
2611 | return 0x4; | |
2612 | case rocksdb::WriteType::kLogDataRecord: | |
2613 | return 0x5; | |
2614 | case rocksdb::WriteType::kXIDRecord: | |
2615 | return 0x6; | |
2616 | default: | |
2617 | return 0x7F; // undefined | |
2618 | } | |
2619 | } | |
2620 | ||
2621 | private: | |
2622 | /** | |
2623 | * Get the Java Class org.rocksdb.WBWIRocksIterator.WriteType | |
2624 | * | |
2625 | * @param env A pointer to the Java environment | |
2626 | * | |
2627 | * @return The Java Class or nullptr if one of the | |
2628 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
2629 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
2630 | */ | |
2631 | static jclass getJClass(JNIEnv* env) { | |
2632 | return JavaClass::getJClass(env, "org/rocksdb/WBWIRocksIterator$WriteType"); | |
2633 | } | |
2634 | ||
2635 | /** | |
2636 | * Get an enum field of org.rocksdb.WBWIRocksIterator.WriteType | |
2637 | * | |
2638 | * @param env A pointer to the Java environment | |
2639 | * @param name The name of the enum field | |
2640 | * | |
2641 | * @return A reference to the enum field value or a nullptr if | |
2642 | * the enum field value could not be retrieved | |
2643 | */ | |
2644 | static jobject getEnum(JNIEnv* env, const char name[]) { | |
2645 | jclass jclazz = getJClass(env); | |
2646 | if(jclazz == nullptr) { | |
2647 | // exception occurred accessing class | |
2648 | return nullptr; | |
2649 | } | |
2650 | ||
2651 | jfieldID jfid = | |
2652 | env->GetStaticFieldID(jclazz, name, | |
2653 | "Lorg/rocksdb/WBWIRocksIterator$WriteType;"); | |
2654 | if(env->ExceptionCheck()) { | |
2655 | // exception occurred while getting field | |
2656 | return nullptr; | |
2657 | } else if(jfid == nullptr) { | |
2658 | return nullptr; | |
2659 | } | |
2660 | ||
2661 | jobject jwrite_type = env->GetStaticObjectField(jclazz, jfid); | |
2662 | assert(jwrite_type != nullptr); | |
2663 | return jwrite_type; | |
2664 | } | |
2665 | }; | |
2666 | ||
2667 | // The portal class for org.rocksdb.WBWIRocksIterator.WriteEntry | |
2668 | class WriteEntryJni : public JavaClass { | |
2669 | public: | |
2670 | /** | |
2671 | * Get the Java Class org.rocksdb.WBWIRocksIterator.WriteEntry | |
2672 | * | |
2673 | * @param env A pointer to the Java environment | |
2674 | * | |
2675 | * @return The Java Class or nullptr if one of the | |
2676 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
2677 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
2678 | */ | |
2679 | static jclass getJClass(JNIEnv* env) { | |
2680 | return JavaClass::getJClass(env, "org/rocksdb/WBWIRocksIterator$WriteEntry"); | |
2681 | } | |
2682 | }; | |
2683 | ||
2684 | // The portal class for org.rocksdb.InfoLogLevel | |
2685 | class InfoLogLevelJni : public JavaClass { | |
2686 | public: | |
2687 | /** | |
2688 | * Get the DEBUG_LEVEL enum field value of InfoLogLevel | |
2689 | * | |
2690 | * @param env A pointer to the Java environment | |
2691 | * | |
2692 | * @return A reference to the enum field value or a nullptr if | |
2693 | * the enum field value could not be retrieved | |
2694 | */ | |
2695 | static jobject DEBUG_LEVEL(JNIEnv* env) { | |
2696 | return getEnum(env, "DEBUG_LEVEL"); | |
2697 | } | |
2698 | ||
2699 | /** | |
2700 | * Get the INFO_LEVEL enum field value of InfoLogLevel | |
2701 | * | |
2702 | * @param env A pointer to the Java environment | |
2703 | * | |
2704 | * @return A reference to the enum field value or a nullptr if | |
2705 | * the enum field value could not be retrieved | |
2706 | */ | |
2707 | static jobject INFO_LEVEL(JNIEnv* env) { | |
2708 | return getEnum(env, "INFO_LEVEL"); | |
2709 | } | |
2710 | ||
2711 | /** | |
2712 | * Get the WARN_LEVEL enum field value of InfoLogLevel | |
2713 | * | |
2714 | * @param env A pointer to the Java environment | |
2715 | * | |
2716 | * @return A reference to the enum field value or a nullptr if | |
2717 | * the enum field value could not be retrieved | |
2718 | */ | |
2719 | static jobject WARN_LEVEL(JNIEnv* env) { | |
2720 | return getEnum(env, "WARN_LEVEL"); | |
2721 | } | |
2722 | ||
2723 | /** | |
2724 | * Get the ERROR_LEVEL enum field value of InfoLogLevel | |
2725 | * | |
2726 | * @param env A pointer to the Java environment | |
2727 | * | |
2728 | * @return A reference to the enum field value or a nullptr if | |
2729 | * the enum field value could not be retrieved | |
2730 | */ | |
2731 | static jobject ERROR_LEVEL(JNIEnv* env) { | |
2732 | return getEnum(env, "ERROR_LEVEL"); | |
2733 | } | |
2734 | ||
2735 | /** | |
2736 | * Get the FATAL_LEVEL enum field value of InfoLogLevel | |
2737 | * | |
2738 | * @param env A pointer to the Java environment | |
2739 | * | |
2740 | * @return A reference to the enum field value or a nullptr if | |
2741 | * the enum field value could not be retrieved | |
2742 | */ | |
2743 | static jobject FATAL_LEVEL(JNIEnv* env) { | |
2744 | return getEnum(env, "FATAL_LEVEL"); | |
2745 | } | |
2746 | ||
2747 | /** | |
2748 | * Get the HEADER_LEVEL enum field value of InfoLogLevel | |
2749 | * | |
2750 | * @param env A pointer to the Java environment | |
2751 | * | |
2752 | * @return A reference to the enum field value or a nullptr if | |
2753 | * the enum field value could not be retrieved | |
2754 | */ | |
2755 | static jobject HEADER_LEVEL(JNIEnv* env) { | |
2756 | return getEnum(env, "HEADER_LEVEL"); | |
2757 | } | |
2758 | ||
2759 | private: | |
2760 | /** | |
2761 | * Get the Java Class org.rocksdb.InfoLogLevel | |
2762 | * | |
2763 | * @param env A pointer to the Java environment | |
2764 | * | |
2765 | * @return The Java Class or nullptr if one of the | |
2766 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
2767 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
2768 | */ | |
2769 | static jclass getJClass(JNIEnv* env) { | |
2770 | return JavaClass::getJClass(env, "org/rocksdb/InfoLogLevel"); | |
2771 | } | |
2772 | ||
2773 | /** | |
2774 | * Get an enum field of org.rocksdb.InfoLogLevel | |
2775 | * | |
2776 | * @param env A pointer to the Java environment | |
2777 | * @param name The name of the enum field | |
2778 | * | |
2779 | * @return A reference to the enum field value or a nullptr if | |
2780 | * the enum field value could not be retrieved | |
2781 | */ | |
2782 | static jobject getEnum(JNIEnv* env, const char name[]) { | |
2783 | jclass jclazz = getJClass(env); | |
2784 | if(jclazz == nullptr) { | |
2785 | // exception occurred accessing class | |
2786 | return nullptr; | |
2787 | } | |
2788 | ||
2789 | jfieldID jfid = | |
2790 | env->GetStaticFieldID(jclazz, name, "Lorg/rocksdb/InfoLogLevel;"); | |
2791 | if(env->ExceptionCheck()) { | |
2792 | // exception occurred while getting field | |
2793 | return nullptr; | |
2794 | } else if(jfid == nullptr) { | |
2795 | return nullptr; | |
2796 | } | |
2797 | ||
2798 | jobject jinfo_log_level = env->GetStaticObjectField(jclazz, jfid); | |
2799 | assert(jinfo_log_level != nullptr); | |
2800 | return jinfo_log_level; | |
2801 | } | |
2802 | }; | |
2803 | ||
2804 | // The portal class for org.rocksdb.Logger | |
2805 | class LoggerJni : public RocksDBNativeClass< | |
2806 | std::shared_ptr<rocksdb::LoggerJniCallback>*, LoggerJni> { | |
2807 | public: | |
2808 | /** | |
2809 | * Get the Java Class org/rocksdb/Logger | |
2810 | * | |
2811 | * @param env A pointer to the Java environment | |
2812 | * | |
2813 | * @return The Java Class or nullptr if one of the | |
2814 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
2815 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
2816 | */ | |
2817 | static jclass getJClass(JNIEnv* env) { | |
2818 | return RocksDBNativeClass::getJClass(env, "org/rocksdb/Logger"); | |
2819 | } | |
2820 | ||
2821 | /** | |
2822 | * Get the Java Method: Logger#log | |
2823 | * | |
2824 | * @param env A pointer to the Java environment | |
2825 | * | |
2826 | * @return The Java Method ID or nullptr if the class or method id could not | |
2827 | * be retieved | |
2828 | */ | |
2829 | static jmethodID getLogMethodId(JNIEnv* env) { | |
2830 | jclass jclazz = getJClass(env); | |
2831 | if(jclazz == nullptr) { | |
2832 | // exception occurred accessing class | |
2833 | return nullptr; | |
2834 | } | |
2835 | ||
2836 | static jmethodID mid = | |
2837 | env->GetMethodID(jclazz, "log", | |
2838 | "(Lorg/rocksdb/InfoLogLevel;Ljava/lang/String;)V"); | |
2839 | assert(mid != nullptr); | |
2840 | return mid; | |
2841 | } | |
2842 | }; | |
2843 | ||
2844 | // The portal class for org.rocksdb.TransactionLogIterator.BatchResult | |
2845 | class BatchResultJni : public JavaClass { | |
2846 | public: | |
2847 | /** | |
2848 | * Get the Java Class org.rocksdb.TransactionLogIterator.BatchResult | |
2849 | * | |
2850 | * @param env A pointer to the Java environment | |
2851 | * | |
2852 | * @return The Java Class or nullptr if one of the | |
2853 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
2854 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
2855 | */ | |
2856 | static jclass getJClass(JNIEnv* env) { | |
2857 | return JavaClass::getJClass(env, | |
2858 | "org/rocksdb/TransactionLogIterator$BatchResult"); | |
2859 | } | |
2860 | ||
2861 | /** | |
2862 | * Create a new Java org.rocksdb.TransactionLogIterator.BatchResult object | |
2863 | * with the same properties as the provided C++ rocksdb::BatchResult object | |
2864 | * | |
2865 | * @param env A pointer to the Java environment | |
2866 | * @param batch_result The rocksdb::BatchResult object | |
2867 | * | |
2868 | * @return A reference to a Java | |
2869 | * org.rocksdb.TransactionLogIterator.BatchResult object, | |
2870 | * or nullptr if an an exception occurs | |
2871 | */ | |
2872 | static jobject construct(JNIEnv* env, | |
2873 | rocksdb::BatchResult& batch_result) { | |
2874 | jclass jclazz = getJClass(env); | |
2875 | if(jclazz == nullptr) { | |
2876 | // exception occurred accessing class | |
2877 | return nullptr; | |
2878 | } | |
2879 | ||
2880 | jmethodID mid = env->GetMethodID( | |
2881 | jclazz, "<init>", "(JJ)V"); | |
2882 | if(mid == nullptr) { | |
2883 | // exception thrown: NoSuchMethodException or OutOfMemoryError | |
2884 | return nullptr; | |
2885 | } | |
2886 | ||
2887 | jobject jbatch_result = env->NewObject(jclazz, mid, | |
2888 | batch_result.sequence, batch_result.writeBatchPtr.get()); | |
2889 | if(jbatch_result == nullptr) { | |
2890 | // exception thrown: InstantiationException or OutOfMemoryError | |
2891 | return nullptr; | |
2892 | } | |
2893 | ||
2894 | batch_result.writeBatchPtr.release(); | |
2895 | return jbatch_result; | |
2896 | } | |
2897 | }; | |
2898 | ||
2899 | // The portal class for org.rocksdb.BottommostLevelCompaction | |
2900 | class BottommostLevelCompactionJni { | |
2901 | public: | |
2902 | // Returns the equivalent org.rocksdb.BottommostLevelCompaction for the provided | |
2903 | // C++ rocksdb::BottommostLevelCompaction enum | |
2904 | static jint toJavaBottommostLevelCompaction( | |
2905 | const rocksdb::BottommostLevelCompaction& bottommost_level_compaction) { | |
2906 | switch(bottommost_level_compaction) { | |
2907 | case rocksdb::BottommostLevelCompaction::kSkip: | |
2908 | return 0x0; | |
2909 | case rocksdb::BottommostLevelCompaction::kIfHaveCompactionFilter: | |
2910 | return 0x1; | |
2911 | case rocksdb::BottommostLevelCompaction::kForce: | |
2912 | return 0x2; | |
2913 | default: | |
2914 | return 0x7F; // undefined | |
2915 | } | |
2916 | } | |
2917 | ||
2918 | // Returns the equivalent C++ rocksdb::BottommostLevelCompaction enum for the | |
2919 | // provided Java org.rocksdb.BottommostLevelCompaction | |
2920 | static rocksdb::BottommostLevelCompaction toCppBottommostLevelCompaction( | |
2921 | jint bottommost_level_compaction) { | |
2922 | switch(bottommost_level_compaction) { | |
2923 | case 0x0: | |
2924 | return rocksdb::BottommostLevelCompaction::kSkip; | |
2925 | case 0x1: | |
2926 | return rocksdb::BottommostLevelCompaction::kIfHaveCompactionFilter; | |
2927 | case 0x2: | |
2928 | return rocksdb::BottommostLevelCompaction::kForce; | |
2929 | default: | |
2930 | // undefined/default | |
2931 | return rocksdb::BottommostLevelCompaction::kIfHaveCompactionFilter; | |
2932 | } | |
2933 | } | |
2934 | }; | |
2935 | ||
2936 | // The portal class for org.rocksdb.CompactionStopStyle | |
2937 | class CompactionStopStyleJni { | |
2938 | public: | |
2939 | // Returns the equivalent org.rocksdb.CompactionStopStyle for the provided | |
2940 | // C++ rocksdb::CompactionStopStyle enum | |
2941 | static jbyte toJavaCompactionStopStyle( | |
2942 | const rocksdb::CompactionStopStyle& compaction_stop_style) { | |
2943 | switch(compaction_stop_style) { | |
2944 | case rocksdb::CompactionStopStyle::kCompactionStopStyleSimilarSize: | |
2945 | return 0x0; | |
2946 | case rocksdb::CompactionStopStyle::kCompactionStopStyleTotalSize: | |
2947 | return 0x1; | |
2948 | default: | |
2949 | return 0x7F; // undefined | |
2950 | } | |
2951 | } | |
2952 | ||
2953 | // Returns the equivalent C++ rocksdb::CompactionStopStyle enum for the | |
2954 | // provided Java org.rocksdb.CompactionStopStyle | |
2955 | static rocksdb::CompactionStopStyle toCppCompactionStopStyle( | |
2956 | jbyte jcompaction_stop_style) { | |
2957 | switch(jcompaction_stop_style) { | |
2958 | case 0x0: | |
2959 | return rocksdb::CompactionStopStyle::kCompactionStopStyleSimilarSize; | |
2960 | case 0x1: | |
2961 | return rocksdb::CompactionStopStyle::kCompactionStopStyleTotalSize; | |
2962 | default: | |
2963 | // undefined/default | |
2964 | return rocksdb::CompactionStopStyle::kCompactionStopStyleSimilarSize; | |
2965 | } | |
2966 | } | |
2967 | }; | |
2968 | ||
2969 | // The portal class for org.rocksdb.CompressionType | |
2970 | class CompressionTypeJni { | |
2971 | public: | |
2972 | // Returns the equivalent org.rocksdb.CompressionType for the provided | |
2973 | // C++ rocksdb::CompressionType enum | |
2974 | static jbyte toJavaCompressionType( | |
2975 | const rocksdb::CompressionType& compression_type) { | |
2976 | switch(compression_type) { | |
2977 | case rocksdb::CompressionType::kNoCompression: | |
2978 | return 0x0; | |
2979 | case rocksdb::CompressionType::kSnappyCompression: | |
2980 | return 0x1; | |
2981 | case rocksdb::CompressionType::kZlibCompression: | |
2982 | return 0x2; | |
2983 | case rocksdb::CompressionType::kBZip2Compression: | |
2984 | return 0x3; | |
2985 | case rocksdb::CompressionType::kLZ4Compression: | |
2986 | return 0x4; | |
2987 | case rocksdb::CompressionType::kLZ4HCCompression: | |
2988 | return 0x5; | |
2989 | case rocksdb::CompressionType::kXpressCompression: | |
2990 | return 0x6; | |
2991 | case rocksdb::CompressionType::kZSTD: | |
2992 | return 0x7; | |
2993 | case rocksdb::CompressionType::kDisableCompressionOption: | |
2994 | default: | |
2995 | return 0x7F; | |
2996 | } | |
2997 | } | |
2998 | ||
2999 | // Returns the equivalent C++ rocksdb::CompressionType enum for the | |
3000 | // provided Java org.rocksdb.CompressionType | |
3001 | static rocksdb::CompressionType toCppCompressionType( | |
3002 | jbyte jcompression_type) { | |
3003 | switch(jcompression_type) { | |
3004 | case 0x0: | |
3005 | return rocksdb::CompressionType::kNoCompression; | |
3006 | case 0x1: | |
3007 | return rocksdb::CompressionType::kSnappyCompression; | |
3008 | case 0x2: | |
3009 | return rocksdb::CompressionType::kZlibCompression; | |
3010 | case 0x3: | |
3011 | return rocksdb::CompressionType::kBZip2Compression; | |
3012 | case 0x4: | |
3013 | return rocksdb::CompressionType::kLZ4Compression; | |
3014 | case 0x5: | |
3015 | return rocksdb::CompressionType::kLZ4HCCompression; | |
3016 | case 0x6: | |
3017 | return rocksdb::CompressionType::kXpressCompression; | |
3018 | case 0x7: | |
3019 | return rocksdb::CompressionType::kZSTD; | |
3020 | case 0x7F: | |
3021 | default: | |
3022 | return rocksdb::CompressionType::kDisableCompressionOption; | |
3023 | } | |
3024 | } | |
3025 | }; | |
3026 | ||
3027 | // The portal class for org.rocksdb.CompactionPriority | |
3028 | class CompactionPriorityJni { | |
3029 | public: | |
3030 | // Returns the equivalent org.rocksdb.CompactionPriority for the provided | |
3031 | // C++ rocksdb::CompactionPri enum | |
3032 | static jbyte toJavaCompactionPriority( | |
3033 | const rocksdb::CompactionPri& compaction_priority) { | |
3034 | switch(compaction_priority) { | |
3035 | case rocksdb::CompactionPri::kByCompensatedSize: | |
3036 | return 0x0; | |
3037 | case rocksdb::CompactionPri::kOldestLargestSeqFirst: | |
3038 | return 0x1; | |
3039 | case rocksdb::CompactionPri::kOldestSmallestSeqFirst: | |
3040 | return 0x2; | |
3041 | case rocksdb::CompactionPri::kMinOverlappingRatio: | |
3042 | return 0x3; | |
3043 | default: | |
3044 | return 0x0; // undefined | |
3045 | } | |
3046 | } | |
3047 | ||
3048 | // Returns the equivalent C++ rocksdb::CompactionPri enum for the | |
3049 | // provided Java org.rocksdb.CompactionPriority | |
3050 | static rocksdb::CompactionPri toCppCompactionPriority( | |
3051 | jbyte jcompaction_priority) { | |
3052 | switch(jcompaction_priority) { | |
3053 | case 0x0: | |
3054 | return rocksdb::CompactionPri::kByCompensatedSize; | |
3055 | case 0x1: | |
3056 | return rocksdb::CompactionPri::kOldestLargestSeqFirst; | |
3057 | case 0x2: | |
3058 | return rocksdb::CompactionPri::kOldestSmallestSeqFirst; | |
3059 | case 0x3: | |
3060 | return rocksdb::CompactionPri::kMinOverlappingRatio; | |
3061 | default: | |
3062 | // undefined/default | |
3063 | return rocksdb::CompactionPri::kByCompensatedSize; | |
3064 | } | |
3065 | } | |
3066 | }; | |
3067 | ||
3068 | // The portal class for org.rocksdb.AccessHint | |
3069 | class AccessHintJni { | |
3070 | public: | |
3071 | // Returns the equivalent org.rocksdb.AccessHint for the provided | |
3072 | // C++ rocksdb::DBOptions::AccessHint enum | |
3073 | static jbyte toJavaAccessHint( | |
3074 | const rocksdb::DBOptions::AccessHint& access_hint) { | |
3075 | switch(access_hint) { | |
3076 | case rocksdb::DBOptions::AccessHint::NONE: | |
3077 | return 0x0; | |
3078 | case rocksdb::DBOptions::AccessHint::NORMAL: | |
3079 | return 0x1; | |
3080 | case rocksdb::DBOptions::AccessHint::SEQUENTIAL: | |
3081 | return 0x2; | |
3082 | case rocksdb::DBOptions::AccessHint::WILLNEED: | |
3083 | return 0x3; | |
3084 | default: | |
3085 | // undefined/default | |
3086 | return 0x1; | |
3087 | } | |
3088 | } | |
3089 | ||
3090 | // Returns the equivalent C++ rocksdb::DBOptions::AccessHint enum for the | |
3091 | // provided Java org.rocksdb.AccessHint | |
3092 | static rocksdb::DBOptions::AccessHint toCppAccessHint(jbyte jaccess_hint) { | |
3093 | switch(jaccess_hint) { | |
3094 | case 0x0: | |
3095 | return rocksdb::DBOptions::AccessHint::NONE; | |
3096 | case 0x1: | |
3097 | return rocksdb::DBOptions::AccessHint::NORMAL; | |
3098 | case 0x2: | |
3099 | return rocksdb::DBOptions::AccessHint::SEQUENTIAL; | |
3100 | case 0x3: | |
3101 | return rocksdb::DBOptions::AccessHint::WILLNEED; | |
3102 | default: | |
3103 | // undefined/default | |
3104 | return rocksdb::DBOptions::AccessHint::NORMAL; | |
3105 | } | |
3106 | } | |
3107 | }; | |
3108 | ||
3109 | // The portal class for org.rocksdb.WALRecoveryMode | |
3110 | class WALRecoveryModeJni { | |
3111 | public: | |
3112 | // Returns the equivalent org.rocksdb.WALRecoveryMode for the provided | |
3113 | // C++ rocksdb::WALRecoveryMode enum | |
3114 | static jbyte toJavaWALRecoveryMode( | |
3115 | const rocksdb::WALRecoveryMode& wal_recovery_mode) { | |
3116 | switch(wal_recovery_mode) { | |
3117 | case rocksdb::WALRecoveryMode::kTolerateCorruptedTailRecords: | |
3118 | return 0x0; | |
3119 | case rocksdb::WALRecoveryMode::kAbsoluteConsistency: | |
3120 | return 0x1; | |
3121 | case rocksdb::WALRecoveryMode::kPointInTimeRecovery: | |
3122 | return 0x2; | |
3123 | case rocksdb::WALRecoveryMode::kSkipAnyCorruptedRecords: | |
3124 | return 0x3; | |
3125 | default: | |
3126 | // undefined/default | |
3127 | return 0x2; | |
3128 | } | |
3129 | } | |
3130 | ||
3131 | // Returns the equivalent C++ rocksdb::WALRecoveryMode enum for the | |
3132 | // provided Java org.rocksdb.WALRecoveryMode | |
3133 | static rocksdb::WALRecoveryMode toCppWALRecoveryMode(jbyte jwal_recovery_mode) { | |
3134 | switch(jwal_recovery_mode) { | |
3135 | case 0x0: | |
3136 | return rocksdb::WALRecoveryMode::kTolerateCorruptedTailRecords; | |
3137 | case 0x1: | |
3138 | return rocksdb::WALRecoveryMode::kAbsoluteConsistency; | |
3139 | case 0x2: | |
3140 | return rocksdb::WALRecoveryMode::kPointInTimeRecovery; | |
3141 | case 0x3: | |
3142 | return rocksdb::WALRecoveryMode::kSkipAnyCorruptedRecords; | |
3143 | default: | |
3144 | // undefined/default | |
3145 | return rocksdb::WALRecoveryMode::kPointInTimeRecovery; | |
3146 | } | |
3147 | } | |
3148 | }; | |
3149 | ||
3150 | // The portal class for org.rocksdb.TickerType | |
3151 | class TickerTypeJni { | |
3152 | public: | |
3153 | // Returns the equivalent org.rocksdb.TickerType for the provided | |
3154 | // C++ rocksdb::Tickers enum | |
3155 | static jbyte toJavaTickerType( | |
3156 | const rocksdb::Tickers& tickers) { | |
3157 | switch(tickers) { | |
3158 | case rocksdb::Tickers::BLOCK_CACHE_MISS: | |
3159 | return 0x0; | |
3160 | case rocksdb::Tickers::BLOCK_CACHE_HIT: | |
3161 | return 0x1; | |
3162 | case rocksdb::Tickers::BLOCK_CACHE_ADD: | |
3163 | return 0x2; | |
3164 | case rocksdb::Tickers::BLOCK_CACHE_ADD_FAILURES: | |
3165 | return 0x3; | |
3166 | case rocksdb::Tickers::BLOCK_CACHE_INDEX_MISS: | |
3167 | return 0x4; | |
3168 | case rocksdb::Tickers::BLOCK_CACHE_INDEX_HIT: | |
3169 | return 0x5; | |
3170 | case rocksdb::Tickers::BLOCK_CACHE_INDEX_ADD: | |
3171 | return 0x6; | |
3172 | case rocksdb::Tickers::BLOCK_CACHE_INDEX_BYTES_INSERT: | |
3173 | return 0x7; | |
3174 | case rocksdb::Tickers::BLOCK_CACHE_INDEX_BYTES_EVICT: | |
3175 | return 0x8; | |
3176 | case rocksdb::Tickers::BLOCK_CACHE_FILTER_MISS: | |
3177 | return 0x9; | |
3178 | case rocksdb::Tickers::BLOCK_CACHE_FILTER_HIT: | |
3179 | return 0xA; | |
3180 | case rocksdb::Tickers::BLOCK_CACHE_FILTER_ADD: | |
3181 | return 0xB; | |
3182 | case rocksdb::Tickers::BLOCK_CACHE_FILTER_BYTES_INSERT: | |
3183 | return 0xC; | |
3184 | case rocksdb::Tickers::BLOCK_CACHE_FILTER_BYTES_EVICT: | |
3185 | return 0xD; | |
3186 | case rocksdb::Tickers::BLOCK_CACHE_DATA_MISS: | |
3187 | return 0xE; | |
3188 | case rocksdb::Tickers::BLOCK_CACHE_DATA_HIT: | |
3189 | return 0xF; | |
3190 | case rocksdb::Tickers::BLOCK_CACHE_DATA_ADD: | |
3191 | return 0x10; | |
3192 | case rocksdb::Tickers::BLOCK_CACHE_DATA_BYTES_INSERT: | |
3193 | return 0x11; | |
3194 | case rocksdb::Tickers::BLOCK_CACHE_BYTES_READ: | |
3195 | return 0x12; | |
3196 | case rocksdb::Tickers::BLOCK_CACHE_BYTES_WRITE: | |
3197 | return 0x13; | |
3198 | case rocksdb::Tickers::BLOOM_FILTER_USEFUL: | |
3199 | return 0x14; | |
3200 | case rocksdb::Tickers::PERSISTENT_CACHE_HIT: | |
3201 | return 0x15; | |
3202 | case rocksdb::Tickers::PERSISTENT_CACHE_MISS: | |
3203 | return 0x16; | |
3204 | case rocksdb::Tickers::SIM_BLOCK_CACHE_HIT: | |
3205 | return 0x17; | |
3206 | case rocksdb::Tickers::SIM_BLOCK_CACHE_MISS: | |
3207 | return 0x18; | |
3208 | case rocksdb::Tickers::MEMTABLE_HIT: | |
3209 | return 0x19; | |
3210 | case rocksdb::Tickers::MEMTABLE_MISS: | |
3211 | return 0x1A; | |
3212 | case rocksdb::Tickers::GET_HIT_L0: | |
3213 | return 0x1B; | |
3214 | case rocksdb::Tickers::GET_HIT_L1: | |
3215 | return 0x1C; | |
3216 | case rocksdb::Tickers::GET_HIT_L2_AND_UP: | |
3217 | return 0x1D; | |
3218 | case rocksdb::Tickers::COMPACTION_KEY_DROP_NEWER_ENTRY: | |
3219 | return 0x1E; | |
3220 | case rocksdb::Tickers::COMPACTION_KEY_DROP_OBSOLETE: | |
3221 | return 0x1F; | |
3222 | case rocksdb::Tickers::COMPACTION_KEY_DROP_RANGE_DEL: | |
3223 | return 0x20; | |
3224 | case rocksdb::Tickers::COMPACTION_KEY_DROP_USER: | |
3225 | return 0x21; | |
3226 | case rocksdb::Tickers::COMPACTION_RANGE_DEL_DROP_OBSOLETE: | |
3227 | return 0x22; | |
3228 | case rocksdb::Tickers::NUMBER_KEYS_WRITTEN: | |
3229 | return 0x23; | |
3230 | case rocksdb::Tickers::NUMBER_KEYS_READ: | |
3231 | return 0x24; | |
3232 | case rocksdb::Tickers::NUMBER_KEYS_UPDATED: | |
3233 | return 0x25; | |
3234 | case rocksdb::Tickers::BYTES_WRITTEN: | |
3235 | return 0x26; | |
3236 | case rocksdb::Tickers::BYTES_READ: | |
3237 | return 0x27; | |
3238 | case rocksdb::Tickers::NUMBER_DB_SEEK: | |
3239 | return 0x28; | |
3240 | case rocksdb::Tickers::NUMBER_DB_NEXT: | |
3241 | return 0x29; | |
3242 | case rocksdb::Tickers::NUMBER_DB_PREV: | |
3243 | return 0x2A; | |
3244 | case rocksdb::Tickers::NUMBER_DB_SEEK_FOUND: | |
3245 | return 0x2B; | |
3246 | case rocksdb::Tickers::NUMBER_DB_NEXT_FOUND: | |
3247 | return 0x2C; | |
3248 | case rocksdb::Tickers::NUMBER_DB_PREV_FOUND: | |
3249 | return 0x2D; | |
3250 | case rocksdb::Tickers::ITER_BYTES_READ: | |
3251 | return 0x2E; | |
3252 | case rocksdb::Tickers::NO_FILE_CLOSES: | |
3253 | return 0x2F; | |
3254 | case rocksdb::Tickers::NO_FILE_OPENS: | |
3255 | return 0x30; | |
3256 | case rocksdb::Tickers::NO_FILE_ERRORS: | |
3257 | return 0x31; | |
3258 | case rocksdb::Tickers::STALL_L0_SLOWDOWN_MICROS: | |
3259 | return 0x32; | |
3260 | case rocksdb::Tickers::STALL_MEMTABLE_COMPACTION_MICROS: | |
3261 | return 0x33; | |
3262 | case rocksdb::Tickers::STALL_L0_NUM_FILES_MICROS: | |
3263 | return 0x34; | |
3264 | case rocksdb::Tickers::STALL_MICROS: | |
3265 | return 0x35; | |
3266 | case rocksdb::Tickers::DB_MUTEX_WAIT_MICROS: | |
3267 | return 0x36; | |
3268 | case rocksdb::Tickers::RATE_LIMIT_DELAY_MILLIS: | |
3269 | return 0x37; | |
3270 | case rocksdb::Tickers::NO_ITERATORS: | |
3271 | return 0x38; | |
3272 | case rocksdb::Tickers::NUMBER_MULTIGET_CALLS: | |
3273 | return 0x39; | |
3274 | case rocksdb::Tickers::NUMBER_MULTIGET_KEYS_READ: | |
3275 | return 0x3A; | |
3276 | case rocksdb::Tickers::NUMBER_MULTIGET_BYTES_READ: | |
3277 | return 0x3B; | |
3278 | case rocksdb::Tickers::NUMBER_FILTERED_DELETES: | |
3279 | return 0x3C; | |
3280 | case rocksdb::Tickers::NUMBER_MERGE_FAILURES: | |
3281 | return 0x3D; | |
3282 | case rocksdb::Tickers::BLOOM_FILTER_PREFIX_CHECKED: | |
3283 | return 0x3E; | |
3284 | case rocksdb::Tickers::BLOOM_FILTER_PREFIX_USEFUL: | |
3285 | return 0x3F; | |
3286 | case rocksdb::Tickers::NUMBER_OF_RESEEKS_IN_ITERATION: | |
3287 | return 0x40; | |
3288 | case rocksdb::Tickers::GET_UPDATES_SINCE_CALLS: | |
3289 | return 0x41; | |
3290 | case rocksdb::Tickers::BLOCK_CACHE_COMPRESSED_MISS: | |
3291 | return 0x42; | |
3292 | case rocksdb::Tickers::BLOCK_CACHE_COMPRESSED_HIT: | |
3293 | return 0x43; | |
3294 | case rocksdb::Tickers::BLOCK_CACHE_COMPRESSED_ADD: | |
3295 | return 0x44; | |
3296 | case rocksdb::Tickers::BLOCK_CACHE_COMPRESSED_ADD_FAILURES: | |
3297 | return 0x45; | |
3298 | case rocksdb::Tickers::WAL_FILE_SYNCED: | |
3299 | return 0x46; | |
3300 | case rocksdb::Tickers::WAL_FILE_BYTES: | |
3301 | return 0x47; | |
3302 | case rocksdb::Tickers::WRITE_DONE_BY_SELF: | |
3303 | return 0x48; | |
3304 | case rocksdb::Tickers::WRITE_DONE_BY_OTHER: | |
3305 | return 0x49; | |
3306 | case rocksdb::Tickers::WRITE_TIMEDOUT: | |
3307 | return 0x4A; | |
3308 | case rocksdb::Tickers::WRITE_WITH_WAL: | |
3309 | return 0x4B; | |
3310 | case rocksdb::Tickers::COMPACT_READ_BYTES: | |
3311 | return 0x4C; | |
3312 | case rocksdb::Tickers::COMPACT_WRITE_BYTES: | |
3313 | return 0x4D; | |
3314 | case rocksdb::Tickers::FLUSH_WRITE_BYTES: | |
3315 | return 0x4E; | |
3316 | case rocksdb::Tickers::NUMBER_DIRECT_LOAD_TABLE_PROPERTIES: | |
3317 | return 0x4F; | |
3318 | case rocksdb::Tickers::NUMBER_SUPERVERSION_ACQUIRES: | |
3319 | return 0x50; | |
3320 | case rocksdb::Tickers::NUMBER_SUPERVERSION_RELEASES: | |
3321 | return 0x51; | |
3322 | case rocksdb::Tickers::NUMBER_SUPERVERSION_CLEANUPS: | |
3323 | return 0x52; | |
3324 | case rocksdb::Tickers::NUMBER_BLOCK_COMPRESSED: | |
3325 | return 0x53; | |
3326 | case rocksdb::Tickers::NUMBER_BLOCK_DECOMPRESSED: | |
3327 | return 0x54; | |
3328 | case rocksdb::Tickers::NUMBER_BLOCK_NOT_COMPRESSED: | |
3329 | return 0x55; | |
3330 | case rocksdb::Tickers::MERGE_OPERATION_TOTAL_TIME: | |
3331 | return 0x56; | |
3332 | case rocksdb::Tickers::FILTER_OPERATION_TOTAL_TIME: | |
3333 | return 0x57; | |
3334 | case rocksdb::Tickers::ROW_CACHE_HIT: | |
3335 | return 0x58; | |
3336 | case rocksdb::Tickers::ROW_CACHE_MISS: | |
3337 | return 0x59; | |
3338 | case rocksdb::Tickers::READ_AMP_ESTIMATE_USEFUL_BYTES: | |
3339 | return 0x5A; | |
3340 | case rocksdb::Tickers::READ_AMP_TOTAL_READ_BYTES: | |
3341 | return 0x5B; | |
3342 | case rocksdb::Tickers::NUMBER_RATE_LIMITER_DRAINS: | |
3343 | return 0x5C; | |
3344 | case rocksdb::Tickers::NUMBER_ITER_SKIP: | |
3345 | return 0x5D; | |
3346 | case rocksdb::Tickers::NUMBER_MULTIGET_KEYS_FOUND: | |
3347 | return 0x5E; | |
3348 | case rocksdb::Tickers::TICKER_ENUM_MAX: | |
3349 | return 0x5F; | |
3350 | ||
3351 | default: | |
3352 | // undefined/default | |
3353 | return 0x0; | |
3354 | } | |
3355 | } | |
3356 | ||
3357 | // Returns the equivalent C++ rocksdb::Tickers enum for the | |
3358 | // provided Java org.rocksdb.TickerType | |
3359 | static rocksdb::Tickers toCppTickers(jbyte jticker_type) { | |
3360 | switch(jticker_type) { | |
3361 | case 0x0: | |
3362 | return rocksdb::Tickers::BLOCK_CACHE_MISS; | |
3363 | case 0x1: | |
3364 | return rocksdb::Tickers::BLOCK_CACHE_HIT; | |
3365 | case 0x2: | |
3366 | return rocksdb::Tickers::BLOCK_CACHE_ADD; | |
3367 | case 0x3: | |
3368 | return rocksdb::Tickers::BLOCK_CACHE_ADD_FAILURES; | |
3369 | case 0x4: | |
3370 | return rocksdb::Tickers::BLOCK_CACHE_INDEX_MISS; | |
3371 | case 0x5: | |
3372 | return rocksdb::Tickers::BLOCK_CACHE_INDEX_HIT; | |
3373 | case 0x6: | |
3374 | return rocksdb::Tickers::BLOCK_CACHE_INDEX_ADD; | |
3375 | case 0x7: | |
3376 | return rocksdb::Tickers::BLOCK_CACHE_INDEX_BYTES_INSERT; | |
3377 | case 0x8: | |
3378 | return rocksdb::Tickers::BLOCK_CACHE_INDEX_BYTES_EVICT; | |
3379 | case 0x9: | |
3380 | return rocksdb::Tickers::BLOCK_CACHE_FILTER_MISS; | |
3381 | case 0xA: | |
3382 | return rocksdb::Tickers::BLOCK_CACHE_FILTER_HIT; | |
3383 | case 0xB: | |
3384 | return rocksdb::Tickers::BLOCK_CACHE_FILTER_ADD; | |
3385 | case 0xC: | |
3386 | return rocksdb::Tickers::BLOCK_CACHE_FILTER_BYTES_INSERT; | |
3387 | case 0xD: | |
3388 | return rocksdb::Tickers::BLOCK_CACHE_FILTER_BYTES_EVICT; | |
3389 | case 0xE: | |
3390 | return rocksdb::Tickers::BLOCK_CACHE_DATA_MISS; | |
3391 | case 0xF: | |
3392 | return rocksdb::Tickers::BLOCK_CACHE_DATA_HIT; | |
3393 | case 0x10: | |
3394 | return rocksdb::Tickers::BLOCK_CACHE_DATA_ADD; | |
3395 | case 0x11: | |
3396 | return rocksdb::Tickers::BLOCK_CACHE_DATA_BYTES_INSERT; | |
3397 | case 0x12: | |
3398 | return rocksdb::Tickers::BLOCK_CACHE_BYTES_READ; | |
3399 | case 0x13: | |
3400 | return rocksdb::Tickers::BLOCK_CACHE_BYTES_WRITE; | |
3401 | case 0x14: | |
3402 | return rocksdb::Tickers::BLOOM_FILTER_USEFUL; | |
3403 | case 0x15: | |
3404 | return rocksdb::Tickers::PERSISTENT_CACHE_HIT; | |
3405 | case 0x16: | |
3406 | return rocksdb::Tickers::PERSISTENT_CACHE_MISS; | |
3407 | case 0x17: | |
3408 | return rocksdb::Tickers::SIM_BLOCK_CACHE_HIT; | |
3409 | case 0x18: | |
3410 | return rocksdb::Tickers::SIM_BLOCK_CACHE_MISS; | |
3411 | case 0x19: | |
3412 | return rocksdb::Tickers::MEMTABLE_HIT; | |
3413 | case 0x1A: | |
3414 | return rocksdb::Tickers::MEMTABLE_MISS; | |
3415 | case 0x1B: | |
3416 | return rocksdb::Tickers::GET_HIT_L0; | |
3417 | case 0x1C: | |
3418 | return rocksdb::Tickers::GET_HIT_L1; | |
3419 | case 0x1D: | |
3420 | return rocksdb::Tickers::GET_HIT_L2_AND_UP; | |
3421 | case 0x1E: | |
3422 | return rocksdb::Tickers::COMPACTION_KEY_DROP_NEWER_ENTRY; | |
3423 | case 0x1F: | |
3424 | return rocksdb::Tickers::COMPACTION_KEY_DROP_OBSOLETE; | |
3425 | case 0x20: | |
3426 | return rocksdb::Tickers::COMPACTION_KEY_DROP_RANGE_DEL; | |
3427 | case 0x21: | |
3428 | return rocksdb::Tickers::COMPACTION_KEY_DROP_USER; | |
3429 | case 0x22: | |
3430 | return rocksdb::Tickers::COMPACTION_RANGE_DEL_DROP_OBSOLETE; | |
3431 | case 0x23: | |
3432 | return rocksdb::Tickers::NUMBER_KEYS_WRITTEN; | |
3433 | case 0x24: | |
3434 | return rocksdb::Tickers::NUMBER_KEYS_READ; | |
3435 | case 0x25: | |
3436 | return rocksdb::Tickers::NUMBER_KEYS_UPDATED; | |
3437 | case 0x26: | |
3438 | return rocksdb::Tickers::BYTES_WRITTEN; | |
3439 | case 0x27: | |
3440 | return rocksdb::Tickers::BYTES_READ; | |
3441 | case 0x28: | |
3442 | return rocksdb::Tickers::NUMBER_DB_SEEK; | |
3443 | case 0x29: | |
3444 | return rocksdb::Tickers::NUMBER_DB_NEXT; | |
3445 | case 0x2A: | |
3446 | return rocksdb::Tickers::NUMBER_DB_PREV; | |
3447 | case 0x2B: | |
3448 | return rocksdb::Tickers::NUMBER_DB_SEEK_FOUND; | |
3449 | case 0x2C: | |
3450 | return rocksdb::Tickers::NUMBER_DB_NEXT_FOUND; | |
3451 | case 0x2D: | |
3452 | return rocksdb::Tickers::NUMBER_DB_PREV_FOUND; | |
3453 | case 0x2E: | |
3454 | return rocksdb::Tickers::ITER_BYTES_READ; | |
3455 | case 0x2F: | |
3456 | return rocksdb::Tickers::NO_FILE_CLOSES; | |
3457 | case 0x30: | |
3458 | return rocksdb::Tickers::NO_FILE_OPENS; | |
3459 | case 0x31: | |
3460 | return rocksdb::Tickers::NO_FILE_ERRORS; | |
3461 | case 0x32: | |
3462 | return rocksdb::Tickers::STALL_L0_SLOWDOWN_MICROS; | |
3463 | case 0x33: | |
3464 | return rocksdb::Tickers::STALL_MEMTABLE_COMPACTION_MICROS; | |
3465 | case 0x34: | |
3466 | return rocksdb::Tickers::STALL_L0_NUM_FILES_MICROS; | |
3467 | case 0x35: | |
3468 | return rocksdb::Tickers::STALL_MICROS; | |
3469 | case 0x36: | |
3470 | return rocksdb::Tickers::DB_MUTEX_WAIT_MICROS; | |
3471 | case 0x37: | |
3472 | return rocksdb::Tickers::RATE_LIMIT_DELAY_MILLIS; | |
3473 | case 0x38: | |
3474 | return rocksdb::Tickers::NO_ITERATORS; | |
3475 | case 0x39: | |
3476 | return rocksdb::Tickers::NUMBER_MULTIGET_CALLS; | |
3477 | case 0x3A: | |
3478 | return rocksdb::Tickers::NUMBER_MULTIGET_KEYS_READ; | |
3479 | case 0x3B: | |
3480 | return rocksdb::Tickers::NUMBER_MULTIGET_BYTES_READ; | |
3481 | case 0x3C: | |
3482 | return rocksdb::Tickers::NUMBER_FILTERED_DELETES; | |
3483 | case 0x3D: | |
3484 | return rocksdb::Tickers::NUMBER_MERGE_FAILURES; | |
3485 | case 0x3E: | |
3486 | return rocksdb::Tickers::BLOOM_FILTER_PREFIX_CHECKED; | |
3487 | case 0x3F: | |
3488 | return rocksdb::Tickers::BLOOM_FILTER_PREFIX_USEFUL; | |
3489 | case 0x40: | |
3490 | return rocksdb::Tickers::NUMBER_OF_RESEEKS_IN_ITERATION; | |
3491 | case 0x41: | |
3492 | return rocksdb::Tickers::GET_UPDATES_SINCE_CALLS; | |
3493 | case 0x42: | |
3494 | return rocksdb::Tickers::BLOCK_CACHE_COMPRESSED_MISS; | |
3495 | case 0x43: | |
3496 | return rocksdb::Tickers::BLOCK_CACHE_COMPRESSED_HIT; | |
3497 | case 0x44: | |
3498 | return rocksdb::Tickers::BLOCK_CACHE_COMPRESSED_ADD; | |
3499 | case 0x45: | |
3500 | return rocksdb::Tickers::BLOCK_CACHE_COMPRESSED_ADD_FAILURES; | |
3501 | case 0x46: | |
3502 | return rocksdb::Tickers::WAL_FILE_SYNCED; | |
3503 | case 0x47: | |
3504 | return rocksdb::Tickers::WAL_FILE_BYTES; | |
3505 | case 0x48: | |
3506 | return rocksdb::Tickers::WRITE_DONE_BY_SELF; | |
3507 | case 0x49: | |
3508 | return rocksdb::Tickers::WRITE_DONE_BY_OTHER; | |
3509 | case 0x4A: | |
3510 | return rocksdb::Tickers::WRITE_TIMEDOUT; | |
3511 | case 0x4B: | |
3512 | return rocksdb::Tickers::WRITE_WITH_WAL; | |
3513 | case 0x4C: | |
3514 | return rocksdb::Tickers::COMPACT_READ_BYTES; | |
3515 | case 0x4D: | |
3516 | return rocksdb::Tickers::COMPACT_WRITE_BYTES; | |
3517 | case 0x4E: | |
3518 | return rocksdb::Tickers::FLUSH_WRITE_BYTES; | |
3519 | case 0x4F: | |
3520 | return rocksdb::Tickers::NUMBER_DIRECT_LOAD_TABLE_PROPERTIES; | |
3521 | case 0x50: | |
3522 | return rocksdb::Tickers::NUMBER_SUPERVERSION_ACQUIRES; | |
3523 | case 0x51: | |
3524 | return rocksdb::Tickers::NUMBER_SUPERVERSION_RELEASES; | |
3525 | case 0x52: | |
3526 | return rocksdb::Tickers::NUMBER_SUPERVERSION_CLEANUPS; | |
3527 | case 0x53: | |
3528 | return rocksdb::Tickers::NUMBER_BLOCK_COMPRESSED; | |
3529 | case 0x54: | |
3530 | return rocksdb::Tickers::NUMBER_BLOCK_DECOMPRESSED; | |
3531 | case 0x55: | |
3532 | return rocksdb::Tickers::NUMBER_BLOCK_NOT_COMPRESSED; | |
3533 | case 0x56: | |
3534 | return rocksdb::Tickers::MERGE_OPERATION_TOTAL_TIME; | |
3535 | case 0x57: | |
3536 | return rocksdb::Tickers::FILTER_OPERATION_TOTAL_TIME; | |
3537 | case 0x58: | |
3538 | return rocksdb::Tickers::ROW_CACHE_HIT; | |
3539 | case 0x59: | |
3540 | return rocksdb::Tickers::ROW_CACHE_MISS; | |
3541 | case 0x5A: | |
3542 | return rocksdb::Tickers::READ_AMP_ESTIMATE_USEFUL_BYTES; | |
3543 | case 0x5B: | |
3544 | return rocksdb::Tickers::READ_AMP_TOTAL_READ_BYTES; | |
3545 | case 0x5C: | |
3546 | return rocksdb::Tickers::NUMBER_RATE_LIMITER_DRAINS; | |
3547 | case 0x5D: | |
3548 | return rocksdb::Tickers::NUMBER_ITER_SKIP; | |
3549 | case 0x5E: | |
3550 | return rocksdb::Tickers::NUMBER_MULTIGET_KEYS_FOUND; | |
3551 | case 0x5F: | |
3552 | return rocksdb::Tickers::TICKER_ENUM_MAX; | |
3553 | ||
3554 | default: | |
3555 | // undefined/default | |
3556 | return rocksdb::Tickers::BLOCK_CACHE_MISS; | |
3557 | } | |
3558 | } | |
3559 | }; | |
3560 | ||
3561 | // The portal class for org.rocksdb.HistogramType | |
3562 | class HistogramTypeJni { | |
3563 | public: | |
3564 | // Returns the equivalent org.rocksdb.HistogramType for the provided | |
3565 | // C++ rocksdb::Histograms enum | |
3566 | static jbyte toJavaHistogramsType( | |
3567 | const rocksdb::Histograms& histograms) { | |
3568 | switch(histograms) { | |
3569 | case rocksdb::Histograms::DB_GET: | |
3570 | return 0x0; | |
3571 | case rocksdb::Histograms::DB_WRITE: | |
3572 | return 0x1; | |
3573 | case rocksdb::Histograms::COMPACTION_TIME: | |
3574 | return 0x2; | |
3575 | case rocksdb::Histograms::SUBCOMPACTION_SETUP_TIME: | |
3576 | return 0x3; | |
3577 | case rocksdb::Histograms::TABLE_SYNC_MICROS: | |
3578 | return 0x4; | |
3579 | case rocksdb::Histograms::COMPACTION_OUTFILE_SYNC_MICROS: | |
3580 | return 0x5; | |
3581 | case rocksdb::Histograms::WAL_FILE_SYNC_MICROS: | |
3582 | return 0x6; | |
3583 | case rocksdb::Histograms::MANIFEST_FILE_SYNC_MICROS: | |
3584 | return 0x7; | |
3585 | case rocksdb::Histograms::TABLE_OPEN_IO_MICROS: | |
3586 | return 0x8; | |
3587 | case rocksdb::Histograms::DB_MULTIGET: | |
3588 | return 0x9; | |
3589 | case rocksdb::Histograms::READ_BLOCK_COMPACTION_MICROS: | |
3590 | return 0xA; | |
3591 | case rocksdb::Histograms::READ_BLOCK_GET_MICROS: | |
3592 | return 0xB; | |
3593 | case rocksdb::Histograms::WRITE_RAW_BLOCK_MICROS: | |
3594 | return 0xC; | |
3595 | case rocksdb::Histograms::STALL_L0_SLOWDOWN_COUNT: | |
3596 | return 0xD; | |
3597 | case rocksdb::Histograms::STALL_MEMTABLE_COMPACTION_COUNT: | |
3598 | return 0xE; | |
3599 | case rocksdb::Histograms::STALL_L0_NUM_FILES_COUNT: | |
3600 | return 0xF; | |
3601 | case rocksdb::Histograms::HARD_RATE_LIMIT_DELAY_COUNT: | |
3602 | return 0x10; | |
3603 | case rocksdb::Histograms::SOFT_RATE_LIMIT_DELAY_COUNT: | |
3604 | return 0x11; | |
3605 | case rocksdb::Histograms::NUM_FILES_IN_SINGLE_COMPACTION: | |
3606 | return 0x12; | |
3607 | case rocksdb::Histograms::DB_SEEK: | |
3608 | return 0x13; | |
3609 | case rocksdb::Histograms::WRITE_STALL: | |
3610 | return 0x14; | |
3611 | case rocksdb::Histograms::SST_READ_MICROS: | |
3612 | return 0x15; | |
3613 | case rocksdb::Histograms::NUM_SUBCOMPACTIONS_SCHEDULED: | |
3614 | return 0x16; | |
3615 | case rocksdb::Histograms::BYTES_PER_READ: | |
3616 | return 0x17; | |
3617 | case rocksdb::Histograms::BYTES_PER_WRITE: | |
3618 | return 0x18; | |
3619 | case rocksdb::Histograms::BYTES_PER_MULTIGET: | |
3620 | return 0x19; | |
3621 | case rocksdb::Histograms::BYTES_COMPRESSED: | |
3622 | return 0x1A; | |
3623 | case rocksdb::Histograms::BYTES_DECOMPRESSED: | |
3624 | return 0x1B; | |
3625 | case rocksdb::Histograms::COMPRESSION_TIMES_NANOS: | |
3626 | return 0x1C; | |
3627 | case rocksdb::Histograms::DECOMPRESSION_TIMES_NANOS: | |
3628 | return 0x1D; | |
3629 | case rocksdb::Histograms::READ_NUM_MERGE_OPERANDS: | |
3630 | return 0x1E; | |
3631 | case rocksdb::Histograms::FLUSH_TIME: | |
3632 | return 0x1F; | |
3633 | case rocksdb::Histograms::HISTOGRAM_ENUM_MAX: | |
3634 | return 0x20; | |
3635 | ||
3636 | default: | |
3637 | // undefined/default | |
3638 | return 0x0; | |
3639 | } | |
3640 | } | |
3641 | ||
3642 | // Returns the equivalent C++ rocksdb::Histograms enum for the | |
3643 | // provided Java org.rocksdb.HistogramsType | |
3644 | static rocksdb::Histograms toCppHistograms(jbyte jhistograms_type) { | |
3645 | switch(jhistograms_type) { | |
3646 | case 0x0: | |
3647 | return rocksdb::Histograms::DB_GET; | |
3648 | case 0x1: | |
3649 | return rocksdb::Histograms::DB_WRITE; | |
3650 | case 0x2: | |
3651 | return rocksdb::Histograms::COMPACTION_TIME; | |
3652 | case 0x3: | |
3653 | return rocksdb::Histograms::SUBCOMPACTION_SETUP_TIME; | |
3654 | case 0x4: | |
3655 | return rocksdb::Histograms::TABLE_SYNC_MICROS; | |
3656 | case 0x5: | |
3657 | return rocksdb::Histograms::COMPACTION_OUTFILE_SYNC_MICROS; | |
3658 | case 0x6: | |
3659 | return rocksdb::Histograms::WAL_FILE_SYNC_MICROS; | |
3660 | case 0x7: | |
3661 | return rocksdb::Histograms::MANIFEST_FILE_SYNC_MICROS; | |
3662 | case 0x8: | |
3663 | return rocksdb::Histograms::TABLE_OPEN_IO_MICROS; | |
3664 | case 0x9: | |
3665 | return rocksdb::Histograms::DB_MULTIGET; | |
3666 | case 0xA: | |
3667 | return rocksdb::Histograms::READ_BLOCK_COMPACTION_MICROS; | |
3668 | case 0xB: | |
3669 | return rocksdb::Histograms::READ_BLOCK_GET_MICROS; | |
3670 | case 0xC: | |
3671 | return rocksdb::Histograms::WRITE_RAW_BLOCK_MICROS; | |
3672 | case 0xD: | |
3673 | return rocksdb::Histograms::STALL_L0_SLOWDOWN_COUNT; | |
3674 | case 0xE: | |
3675 | return rocksdb::Histograms::STALL_MEMTABLE_COMPACTION_COUNT; | |
3676 | case 0xF: | |
3677 | return rocksdb::Histograms::STALL_L0_NUM_FILES_COUNT; | |
3678 | case 0x10: | |
3679 | return rocksdb::Histograms::HARD_RATE_LIMIT_DELAY_COUNT; | |
3680 | case 0x11: | |
3681 | return rocksdb::Histograms::SOFT_RATE_LIMIT_DELAY_COUNT; | |
3682 | case 0x12: | |
3683 | return rocksdb::Histograms::NUM_FILES_IN_SINGLE_COMPACTION; | |
3684 | case 0x13: | |
3685 | return rocksdb::Histograms::DB_SEEK; | |
3686 | case 0x14: | |
3687 | return rocksdb::Histograms::WRITE_STALL; | |
3688 | case 0x15: | |
3689 | return rocksdb::Histograms::SST_READ_MICROS; | |
3690 | case 0x16: | |
3691 | return rocksdb::Histograms::NUM_SUBCOMPACTIONS_SCHEDULED; | |
3692 | case 0x17: | |
3693 | return rocksdb::Histograms::BYTES_PER_READ; | |
3694 | case 0x18: | |
3695 | return rocksdb::Histograms::BYTES_PER_WRITE; | |
3696 | case 0x19: | |
3697 | return rocksdb::Histograms::BYTES_PER_MULTIGET; | |
3698 | case 0x1A: | |
3699 | return rocksdb::Histograms::BYTES_COMPRESSED; | |
3700 | case 0x1B: | |
3701 | return rocksdb::Histograms::BYTES_DECOMPRESSED; | |
3702 | case 0x1C: | |
3703 | return rocksdb::Histograms::COMPRESSION_TIMES_NANOS; | |
3704 | case 0x1D: | |
3705 | return rocksdb::Histograms::DECOMPRESSION_TIMES_NANOS; | |
3706 | case 0x1E: | |
3707 | return rocksdb::Histograms::READ_NUM_MERGE_OPERANDS; | |
3708 | case 0x1F: | |
3709 | return rocksdb::Histograms::FLUSH_TIME; | |
3710 | case 0x20: | |
3711 | return rocksdb::Histograms::HISTOGRAM_ENUM_MAX; | |
3712 | ||
3713 | default: | |
3714 | // undefined/default | |
3715 | return rocksdb::Histograms::DB_GET; | |
3716 | } | |
3717 | } | |
3718 | }; | |
3719 | ||
3720 | // The portal class for org.rocksdb.StatsLevel | |
3721 | class StatsLevelJni { | |
3722 | public: | |
3723 | // Returns the equivalent org.rocksdb.StatsLevel for the provided | |
3724 | // C++ rocksdb::StatsLevel enum | |
3725 | static jbyte toJavaStatsLevel( | |
3726 | const rocksdb::StatsLevel& stats_level) { | |
3727 | switch(stats_level) { | |
3728 | case rocksdb::StatsLevel::kExceptDetailedTimers: | |
3729 | return 0x0; | |
3730 | case rocksdb::StatsLevel::kExceptTimeForMutex: | |
3731 | return 0x1; | |
3732 | case rocksdb::StatsLevel::kAll: | |
3733 | return 0x2; | |
3734 | ||
3735 | default: | |
3736 | // undefined/default | |
3737 | return 0x0; | |
3738 | } | |
3739 | } | |
3740 | ||
3741 | // Returns the equivalent C++ rocksdb::StatsLevel enum for the | |
3742 | // provided Java org.rocksdb.StatsLevel | |
3743 | static rocksdb::StatsLevel toCppStatsLevel(jbyte jstats_level) { | |
3744 | switch(jstats_level) { | |
3745 | case 0x0: | |
3746 | return rocksdb::StatsLevel::kExceptDetailedTimers; | |
3747 | case 0x1: | |
3748 | return rocksdb::StatsLevel::kExceptTimeForMutex; | |
3749 | case 0x2: | |
3750 | return rocksdb::StatsLevel::kAll; | |
3751 | ||
3752 | default: | |
3753 | // undefined/default | |
3754 | return rocksdb::StatsLevel::kExceptDetailedTimers; | |
3755 | } | |
7c673cae FG |
3756 | } |
3757 | }; | |
3758 | ||
11fdf7f2 TL |
3759 | // The portal class for org.rocksdb.RateLimiterMode |
3760 | class RateLimiterModeJni { | |
7c673cae | 3761 | public: |
11fdf7f2 TL |
3762 | // Returns the equivalent org.rocksdb.RateLimiterMode for the provided |
3763 | // C++ rocksdb::RateLimiter::Mode enum | |
3764 | static jbyte toJavaRateLimiterMode( | |
3765 | const rocksdb::RateLimiter::Mode& rate_limiter_mode) { | |
3766 | switch(rate_limiter_mode) { | |
3767 | case rocksdb::RateLimiter::Mode::kReadsOnly: | |
3768 | return 0x0; | |
3769 | case rocksdb::RateLimiter::Mode::kWritesOnly: | |
3770 | return 0x1; | |
3771 | case rocksdb::RateLimiter::Mode::kAllIo: | |
3772 | return 0x2; | |
7c673cae | 3773 | |
11fdf7f2 TL |
3774 | default: |
3775 | // undefined/default | |
3776 | return 0x1; | |
7c673cae | 3777 | } |
11fdf7f2 | 3778 | } |
7c673cae | 3779 | |
11fdf7f2 TL |
3780 | // Returns the equivalent C++ rocksdb::RateLimiter::Mode enum for the |
3781 | // provided Java org.rocksdb.RateLimiterMode | |
3782 | static rocksdb::RateLimiter::Mode toCppRateLimiterMode(jbyte jrate_limiter_mode) { | |
3783 | switch(jrate_limiter_mode) { | |
3784 | case 0x0: | |
3785 | return rocksdb::RateLimiter::Mode::kReadsOnly; | |
3786 | case 0x1: | |
3787 | return rocksdb::RateLimiter::Mode::kWritesOnly; | |
3788 | case 0x2: | |
3789 | return rocksdb::RateLimiter::Mode::kAllIo; | |
7c673cae | 3790 | |
11fdf7f2 TL |
3791 | default: |
3792 | // undefined/default | |
3793 | return rocksdb::RateLimiter::Mode::kWritesOnly; | |
7c673cae | 3794 | } |
11fdf7f2 TL |
3795 | } |
3796 | }; | |
7c673cae | 3797 | |
11fdf7f2 TL |
3798 | // The portal class for org.rocksdb.Transaction |
3799 | class TransactionJni : public JavaClass { | |
3800 | public: | |
7c673cae | 3801 | /** |
11fdf7f2 | 3802 | * Get the Java Class org.rocksdb.Transaction |
7c673cae FG |
3803 | * |
3804 | * @param env A pointer to the Java environment | |
3805 | * | |
3806 | * @return The Java Class or nullptr if one of the | |
3807 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
3808 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
3809 | */ | |
3810 | static jclass getJClass(JNIEnv* env) { | |
11fdf7f2 TL |
3811 | return JavaClass::getJClass(env, |
3812 | "org/rocksdb/Transaction"); | |
7c673cae FG |
3813 | } |
3814 | ||
3815 | /** | |
11fdf7f2 | 3816 | * Create a new Java org.rocksdb.Transaction.WaitingTransactions object |
7c673cae FG |
3817 | * |
3818 | * @param env A pointer to the Java environment | |
11fdf7f2 TL |
3819 | * @param jtransaction A Java org.rocksdb.Transaction object |
3820 | * @param column_family_id The id of the column family | |
3821 | * @param key The key | |
3822 | * @param transaction_ids The transaction ids | |
7c673cae | 3823 | * |
11fdf7f2 TL |
3824 | * @return A reference to a Java |
3825 | * org.rocksdb.Transaction.WaitingTransactions object, | |
3826 | * or nullptr if an an exception occurs | |
7c673cae | 3827 | */ |
11fdf7f2 TL |
3828 | static jobject newWaitingTransactions(JNIEnv* env, jobject jtransaction, |
3829 | const uint32_t column_family_id, const std::string &key, | |
3830 | const std::vector<TransactionID> &transaction_ids) { | |
7c673cae FG |
3831 | jclass jclazz = getJClass(env); |
3832 | if(jclazz == nullptr) { | |
3833 | // exception occurred accessing class | |
3834 | return nullptr; | |
3835 | } | |
3836 | ||
11fdf7f2 TL |
3837 | jmethodID mid = env->GetMethodID( |
3838 | jclazz, "newWaitingTransactions", "(JLjava/lang/String;[J)Lorg/rocksdb/Transaction$WaitingTransactions;"); | |
3839 | if(mid == nullptr) { | |
3840 | // exception thrown: NoSuchMethodException or OutOfMemoryError | |
7c673cae | 3841 | return nullptr; |
11fdf7f2 TL |
3842 | } |
3843 | ||
3844 | jstring jkey = env->NewStringUTF(key.c_str()); | |
3845 | if(jkey == nullptr) { | |
3846 | // exception thrown: OutOfMemoryError | |
7c673cae FG |
3847 | return nullptr; |
3848 | } | |
3849 | ||
11fdf7f2 TL |
3850 | const size_t len = transaction_ids.size(); |
3851 | jlongArray jtransaction_ids = env->NewLongArray(static_cast<jsize>(len)); | |
3852 | if(jtransaction_ids == nullptr) { | |
3853 | // exception thrown: OutOfMemoryError | |
3854 | env->DeleteLocalRef(jkey); | |
3855 | return nullptr; | |
3856 | } | |
3857 | ||
3858 | jlong *body = env->GetLongArrayElements(jtransaction_ids, nullptr); | |
3859 | if(body == nullptr) { | |
3860 | // exception thrown: OutOfMemoryError | |
3861 | env->DeleteLocalRef(jkey); | |
3862 | env->DeleteLocalRef(jtransaction_ids); | |
3863 | return nullptr; | |
3864 | } | |
3865 | for(size_t i = 0; i < len; ++i) { | |
3866 | body[i] = static_cast<jlong>(transaction_ids[i]); | |
3867 | } | |
3868 | env->ReleaseLongArrayElements(jtransaction_ids, body, 0); | |
3869 | ||
3870 | jobject jwaiting_transactions = env->CallObjectMethod(jtransaction, | |
3871 | mid, static_cast<jlong>(column_family_id), jkey, jtransaction_ids); | |
3872 | if(env->ExceptionCheck()) { | |
3873 | // exception thrown: InstantiationException or OutOfMemoryError | |
3874 | env->DeleteLocalRef(jkey); | |
3875 | env->DeleteLocalRef(jtransaction_ids); | |
3876 | return nullptr; | |
3877 | } | |
3878 | ||
3879 | return jwaiting_transactions; | |
7c673cae FG |
3880 | } |
3881 | }; | |
3882 | ||
11fdf7f2 TL |
3883 | // The portal class for org.rocksdb.TransactionDB |
3884 | class TransactionDBJni : public JavaClass { | |
7c673cae | 3885 | public: |
11fdf7f2 TL |
3886 | /** |
3887 | * Get the Java Class org.rocksdb.TransactionDB | |
3888 | * | |
3889 | * @param env A pointer to the Java environment | |
3890 | * | |
3891 | * @return The Java Class or nullptr if one of the | |
3892 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
3893 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
3894 | */ | |
3895 | static jclass getJClass(JNIEnv* env) { | |
3896 | return JavaClass::getJClass(env, | |
3897 | "org/rocksdb/TransactionDB"); | |
3898 | } | |
3899 | ||
7c673cae | 3900 | /** |
11fdf7f2 | 3901 | * Create a new Java org.rocksdb.TransactionDB.DeadlockInfo object |
7c673cae FG |
3902 | * |
3903 | * @param env A pointer to the Java environment | |
11fdf7f2 TL |
3904 | * @param jtransaction A Java org.rocksdb.Transaction object |
3905 | * @param column_family_id The id of the column family | |
3906 | * @param key The key | |
3907 | * @param transaction_ids The transaction ids | |
7c673cae | 3908 | * |
11fdf7f2 TL |
3909 | * @return A reference to a Java |
3910 | * org.rocksdb.Transaction.WaitingTransactions object, | |
3911 | * or nullptr if an an exception occurs | |
7c673cae | 3912 | */ |
11fdf7f2 TL |
3913 | static jobject newDeadlockInfo(JNIEnv* env, jobject jtransaction_db, |
3914 | const rocksdb::TransactionID transaction_id, | |
3915 | const uint32_t column_family_id, const std::string &waiting_key, | |
3916 | const bool exclusive) { | |
3917 | jclass jclazz = getJClass(env); | |
3918 | if(jclazz == nullptr) { | |
3919 | // exception occurred accessing class | |
3920 | return nullptr; | |
7c673cae FG |
3921 | } |
3922 | ||
11fdf7f2 TL |
3923 | jmethodID mid = env->GetMethodID( |
3924 | jclazz, "newDeadlockInfo", "(JJLjava/lang/String;Z)Lorg/rocksdb/TransactionDB$DeadlockInfo;"); | |
3925 | if(mid == nullptr) { | |
3926 | // exception thrown: NoSuchMethodException or OutOfMemoryError | |
3927 | return nullptr; | |
7c673cae FG |
3928 | } |
3929 | ||
11fdf7f2 TL |
3930 | jstring jwaiting_key = env->NewStringUTF(waiting_key.c_str()); |
3931 | if(jwaiting_key == nullptr) { | |
3932 | // exception thrown: OutOfMemoryError | |
3933 | return nullptr; | |
7c673cae FG |
3934 | } |
3935 | ||
11fdf7f2 TL |
3936 | // resolve the column family id to a ColumnFamilyHandle |
3937 | jobject jdeadlock_info = env->CallObjectMethod(jtransaction_db, | |
3938 | mid, transaction_id, static_cast<jlong>(column_family_id), | |
3939 | jwaiting_key, exclusive); | |
3940 | if(env->ExceptionCheck()) { | |
3941 | // exception thrown: InstantiationException or OutOfMemoryError | |
3942 | env->DeleteLocalRef(jwaiting_key); | |
3943 | return nullptr; | |
7c673cae FG |
3944 | } |
3945 | ||
11fdf7f2 TL |
3946 | return jdeadlock_info; |
3947 | } | |
3948 | }; | |
7c673cae | 3949 | |
11fdf7f2 TL |
3950 | // The portal class for org.rocksdb.TxnDBWritePolicy |
3951 | class TxnDBWritePolicyJni { | |
3952 | public: | |
3953 | // Returns the equivalent org.rocksdb.TxnDBWritePolicy for the provided | |
3954 | // C++ rocksdb::TxnDBWritePolicy enum | |
3955 | static jbyte toJavaTxnDBWritePolicy( | |
3956 | const rocksdb::TxnDBWritePolicy& txndb_write_policy) { | |
3957 | switch(txndb_write_policy) { | |
3958 | case rocksdb::TxnDBWritePolicy::WRITE_COMMITTED: | |
3959 | return 0x0; | |
3960 | case rocksdb::TxnDBWritePolicy::WRITE_PREPARED: | |
3961 | return 0x1; | |
3962 | case rocksdb::TxnDBWritePolicy::WRITE_UNPREPARED: | |
3963 | return 0x2; | |
3964 | default: | |
3965 | return 0x7F; // undefined | |
3966 | } | |
3967 | } | |
3968 | ||
3969 | // Returns the equivalent C++ rocksdb::TxnDBWritePolicy enum for the | |
3970 | // provided Java org.rocksdb.TxnDBWritePolicy | |
3971 | static rocksdb::TxnDBWritePolicy toCppTxnDBWritePolicy( | |
3972 | jbyte jtxndb_write_policy) { | |
3973 | switch(jtxndb_write_policy) { | |
3974 | case 0x0: | |
3975 | return rocksdb::TxnDBWritePolicy::WRITE_COMMITTED; | |
3976 | case 0x1: | |
3977 | return rocksdb::TxnDBWritePolicy::WRITE_PREPARED; | |
3978 | case 0x2: | |
3979 | return rocksdb::TxnDBWritePolicy::WRITE_UNPREPARED; | |
3980 | default: | |
3981 | // undefined/default | |
3982 | return rocksdb::TxnDBWritePolicy::WRITE_COMMITTED; | |
3983 | } | |
3984 | } | |
3985 | }; | |
7c673cae | 3986 | |
11fdf7f2 TL |
3987 | // The portal class for org.rocksdb.TransactionDB.KeyLockInfo |
3988 | class KeyLockInfoJni : public JavaClass { | |
3989 | public: | |
7c673cae | 3990 | /** |
11fdf7f2 | 3991 | * Get the Java Class org.rocksdb.TransactionDB.KeyLockInfo |
7c673cae FG |
3992 | * |
3993 | * @param env A pointer to the Java environment | |
3994 | * | |
3995 | * @return The Java Class or nullptr if one of the | |
3996 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
3997 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
3998 | */ | |
3999 | static jclass getJClass(JNIEnv* env) { | |
11fdf7f2 TL |
4000 | return JavaClass::getJClass(env, |
4001 | "org/rocksdb/TransactionDB$KeyLockInfo"); | |
7c673cae FG |
4002 | } |
4003 | ||
4004 | /** | |
11fdf7f2 TL |
4005 | * Create a new Java org.rocksdb.TransactionDB.KeyLockInfo object |
4006 | * with the same properties as the provided C++ rocksdb::KeyLockInfo object | |
7c673cae FG |
4007 | * |
4008 | * @param env A pointer to the Java environment | |
11fdf7f2 | 4009 | * @param key_lock_info The rocksdb::KeyLockInfo object |
7c673cae | 4010 | * |
11fdf7f2 TL |
4011 | * @return A reference to a Java |
4012 | * org.rocksdb.TransactionDB.KeyLockInfo object, | |
4013 | * or nullptr if an an exception occurs | |
7c673cae | 4014 | */ |
11fdf7f2 TL |
4015 | static jobject construct(JNIEnv* env, |
4016 | const rocksdb::KeyLockInfo& key_lock_info) { | |
7c673cae FG |
4017 | jclass jclazz = getJClass(env); |
4018 | if(jclazz == nullptr) { | |
4019 | // exception occurred accessing class | |
4020 | return nullptr; | |
4021 | } | |
4022 | ||
11fdf7f2 TL |
4023 | jmethodID mid = env->GetMethodID( |
4024 | jclazz, "<init>", "(Ljava/lang/String;[JZ)V"); | |
4025 | if (mid == nullptr) { | |
4026 | // exception thrown: NoSuchMethodException or OutOfMemoryError | |
7c673cae | 4027 | return nullptr; |
11fdf7f2 TL |
4028 | } |
4029 | ||
4030 | jstring jkey = env->NewStringUTF(key_lock_info.key.c_str()); | |
4031 | if (jkey == nullptr) { | |
4032 | // exception thrown: OutOfMemoryError | |
7c673cae FG |
4033 | return nullptr; |
4034 | } | |
4035 | ||
11fdf7f2 TL |
4036 | const jsize jtransaction_ids_len = static_cast<jsize>(key_lock_info.ids.size()); |
4037 | jlongArray jtransactions_ids = env->NewLongArray(jtransaction_ids_len); | |
4038 | if (jtransactions_ids == nullptr) { | |
4039 | // exception thrown: OutOfMemoryError | |
4040 | env->DeleteLocalRef(jkey); | |
4041 | return nullptr; | |
4042 | } | |
4043 | ||
4044 | const jobject jkey_lock_info = env->NewObject(jclazz, mid, | |
4045 | jkey, jtransactions_ids, key_lock_info.exclusive); | |
4046 | if(jkey_lock_info == nullptr) { | |
4047 | // exception thrown: InstantiationException or OutOfMemoryError | |
4048 | env->DeleteLocalRef(jtransactions_ids); | |
4049 | env->DeleteLocalRef(jkey); | |
4050 | return nullptr; | |
4051 | } | |
4052 | ||
4053 | return jkey_lock_info; | |
7c673cae FG |
4054 | } |
4055 | }; | |
4056 | ||
11fdf7f2 TL |
4057 | // The portal class for org.rocksdb.TransactionDB.DeadlockInfo |
4058 | class DeadlockInfoJni : public JavaClass { | |
7c673cae FG |
4059 | public: |
4060 | /** | |
11fdf7f2 | 4061 | * Get the Java Class org.rocksdb.TransactionDB.DeadlockInfo |
7c673cae FG |
4062 | * |
4063 | * @param env A pointer to the Java environment | |
4064 | * | |
4065 | * @return The Java Class or nullptr if one of the | |
4066 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
4067 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
4068 | */ | |
11fdf7f2 TL |
4069 | static jclass getJClass(JNIEnv* env) { |
4070 | return JavaClass::getJClass(env,"org/rocksdb/TransactionDB$DeadlockInfo"); | |
7c673cae | 4071 | } |
11fdf7f2 TL |
4072 | }; |
4073 | ||
4074 | // The portal class for org.rocksdb.TransactionDB.DeadlockPath | |
4075 | class DeadlockPathJni : public JavaClass { | |
4076 | public: | |
7c673cae | 4077 | /** |
11fdf7f2 | 4078 | * Get the Java Class org.rocksdb.TransactionDB.DeadlockPath |
7c673cae FG |
4079 | * |
4080 | * @param env A pointer to the Java environment | |
4081 | * | |
4082 | * @return The Java Class or nullptr if one of the | |
4083 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
4084 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
4085 | */ | |
4086 | static jclass getJClass(JNIEnv* env) { | |
4087 | return JavaClass::getJClass(env, | |
11fdf7f2 | 4088 | "org/rocksdb/TransactionDB$DeadlockPath"); |
7c673cae FG |
4089 | } |
4090 | ||
4091 | /** | |
11fdf7f2 | 4092 | * Create a new Java org.rocksdb.TransactionDB.DeadlockPath object |
7c673cae FG |
4093 | * |
4094 | * @param env A pointer to the Java environment | |
7c673cae FG |
4095 | * |
4096 | * @return A reference to a Java | |
11fdf7f2 | 4097 | * org.rocksdb.TransactionDB.DeadlockPath object, |
7c673cae FG |
4098 | * or nullptr if an an exception occurs |
4099 | */ | |
4100 | static jobject construct(JNIEnv* env, | |
11fdf7f2 | 4101 | const jobjectArray jdeadlock_infos, const bool limit_exceeded) { |
7c673cae FG |
4102 | jclass jclazz = getJClass(env); |
4103 | if(jclazz == nullptr) { | |
4104 | // exception occurred accessing class | |
4105 | return nullptr; | |
4106 | } | |
4107 | ||
4108 | jmethodID mid = env->GetMethodID( | |
11fdf7f2 TL |
4109 | jclazz, "<init>", "([LDeadlockInfo;Z)V"); |
4110 | if (mid == nullptr) { | |
7c673cae FG |
4111 | // exception thrown: NoSuchMethodException or OutOfMemoryError |
4112 | return nullptr; | |
4113 | } | |
4114 | ||
11fdf7f2 TL |
4115 | const jobject jdeadlock_path = env->NewObject(jclazz, mid, |
4116 | jdeadlock_infos, limit_exceeded); | |
4117 | if(jdeadlock_path == nullptr) { | |
7c673cae FG |
4118 | // exception thrown: InstantiationException or OutOfMemoryError |
4119 | return nullptr; | |
4120 | } | |
4121 | ||
11fdf7f2 | 4122 | return jdeadlock_path; |
7c673cae FG |
4123 | } |
4124 | }; | |
4125 | ||
4126 | // various utility functions for working with RocksDB and JNI | |
4127 | class JniUtil { | |
4128 | public: | |
4129 | /** | |
4130 | * Obtains a reference to the JNIEnv from | |
4131 | * the JVM | |
4132 | * | |
4133 | * If the current thread is not attached to the JavaVM | |
4134 | * then it will be attached so as to retrieve the JNIEnv | |
4135 | * | |
4136 | * If a thread is attached, it must later be manually | |
4137 | * released by calling JavaVM::DetachCurrentThread. | |
4138 | * This can be handled by always matching calls to this | |
4139 | * function with calls to {@link JniUtil::releaseJniEnv(JavaVM*, jboolean)} | |
4140 | * | |
4141 | * @param jvm (IN) A pointer to the JavaVM instance | |
4142 | * @param attached (OUT) A pointer to a boolean which | |
4143 | * will be set to JNI_TRUE if we had to attach the thread | |
4144 | * | |
4145 | * @return A pointer to the JNIEnv or nullptr if a fatal error | |
4146 | * occurs and the JNIEnv cannot be retrieved | |
4147 | */ | |
4148 | static JNIEnv* getJniEnv(JavaVM* jvm, jboolean* attached) { | |
4149 | assert(jvm != nullptr); | |
4150 | ||
4151 | JNIEnv *env; | |
4152 | const jint env_rs = jvm->GetEnv(reinterpret_cast<void**>(&env), | |
4153 | JNI_VERSION_1_2); | |
4154 | ||
4155 | if(env_rs == JNI_OK) { | |
4156 | // current thread is already attached, return the JNIEnv | |
4157 | *attached = JNI_FALSE; | |
4158 | return env; | |
4159 | } else if(env_rs == JNI_EDETACHED) { | |
4160 | // current thread is not attached, attempt to attach | |
4161 | const jint rs_attach = jvm->AttachCurrentThread(reinterpret_cast<void**>(&env), NULL); | |
4162 | if(rs_attach == JNI_OK) { | |
4163 | *attached = JNI_TRUE; | |
4164 | return env; | |
4165 | } else { | |
4166 | // error, could not attach the thread | |
4167 | std::cerr << "JniUtil::getJinEnv - Fatal: could not attach current thread to JVM!" << std::endl; | |
4168 | return nullptr; | |
4169 | } | |
4170 | } else if(env_rs == JNI_EVERSION) { | |
4171 | // error, JDK does not support JNI_VERSION_1_2+ | |
4172 | std::cerr << "JniUtil::getJinEnv - Fatal: JDK does not support JNI_VERSION_1_2" << std::endl; | |
4173 | return nullptr; | |
4174 | } else { | |
4175 | std::cerr << "JniUtil::getJinEnv - Fatal: Unknown error: env_rs=" << env_rs << std::endl; | |
4176 | return nullptr; | |
4177 | } | |
4178 | } | |
4179 | ||
4180 | /** | |
4181 | * Counterpart to {@link JniUtil::getJniEnv(JavaVM*, jboolean*)} | |
4182 | * | |
4183 | * Detachess the current thread from the JVM if it was previously | |
4184 | * attached | |
4185 | * | |
4186 | * @param jvm (IN) A pointer to the JavaVM instance | |
4187 | * @param attached (IN) JNI_TRUE if we previously had to attach the thread | |
4188 | * to the JavaVM to get the JNIEnv | |
4189 | */ | |
4190 | static void releaseJniEnv(JavaVM* jvm, jboolean& attached) { | |
4191 | assert(jvm != nullptr); | |
4192 | if(attached == JNI_TRUE) { | |
4193 | const jint rs_detach = jvm->DetachCurrentThread(); | |
4194 | assert(rs_detach == JNI_OK); | |
4195 | if(rs_detach != JNI_OK) { | |
4196 | std::cerr << "JniUtil::getJinEnv - Warn: Unable to detach current thread from JVM!" << std::endl; | |
4197 | } | |
4198 | } | |
4199 | } | |
4200 | ||
4201 | /** | |
4202 | * Copies a Java String[] to a C++ std::vector<std::string> | |
4203 | * | |
4204 | * @param env (IN) A pointer to the java environment | |
4205 | * @param jss (IN) The Java String array to copy | |
4206 | * @param has_exception (OUT) will be set to JNI_TRUE | |
4207 | * if an OutOfMemoryError or ArrayIndexOutOfBoundsException | |
4208 | * exception occurs | |
4209 | * | |
4210 | * @return A std::vector<std:string> containing copies of the Java strings | |
4211 | */ | |
4212 | static std::vector<std::string> copyStrings(JNIEnv* env, | |
4213 | jobjectArray jss, jboolean* has_exception) { | |
4214 | return rocksdb::JniUtil::copyStrings(env, jss, | |
4215 | env->GetArrayLength(jss), has_exception); | |
4216 | } | |
4217 | ||
4218 | /** | |
4219 | * Copies a Java String[] to a C++ std::vector<std::string> | |
4220 | * | |
4221 | * @param env (IN) A pointer to the java environment | |
4222 | * @param jss (IN) The Java String array to copy | |
4223 | * @param jss_len (IN) The length of the Java String array to copy | |
4224 | * @param has_exception (OUT) will be set to JNI_TRUE | |
4225 | * if an OutOfMemoryError or ArrayIndexOutOfBoundsException | |
4226 | * exception occurs | |
4227 | * | |
4228 | * @return A std::vector<std:string> containing copies of the Java strings | |
4229 | */ | |
4230 | static std::vector<std::string> copyStrings(JNIEnv* env, | |
4231 | jobjectArray jss, const jsize jss_len, jboolean* has_exception) { | |
4232 | std::vector<std::string> strs; | |
4233 | for (jsize i = 0; i < jss_len; i++) { | |
4234 | jobject js = env->GetObjectArrayElement(jss, i); | |
4235 | if(env->ExceptionCheck()) { | |
4236 | // exception thrown: ArrayIndexOutOfBoundsException | |
4237 | *has_exception = JNI_TRUE; | |
4238 | return strs; | |
4239 | } | |
4240 | ||
4241 | jstring jstr = static_cast<jstring>(js); | |
4242 | const char* str = env->GetStringUTFChars(jstr, nullptr); | |
4243 | if(str == nullptr) { | |
4244 | // exception thrown: OutOfMemoryError | |
4245 | env->DeleteLocalRef(js); | |
4246 | *has_exception = JNI_TRUE; | |
4247 | return strs; | |
4248 | } | |
4249 | ||
4250 | strs.push_back(std::string(str)); | |
4251 | ||
4252 | env->ReleaseStringUTFChars(jstr, str); | |
4253 | env->DeleteLocalRef(js); | |
4254 | } | |
4255 | ||
4256 | *has_exception = JNI_FALSE; | |
11fdf7f2 TL |
4257 | return strs; |
4258 | } | |
4259 | ||
4260 | /** | |
4261 | * Copies a jstring to a C-style null-terminated byte string | |
4262 | * and releases the original jstring | |
4263 | * | |
4264 | * The jstring is copied as UTF-8 | |
4265 | * | |
4266 | * If an exception occurs, then JNIEnv::ExceptionCheck() | |
4267 | * will have been called | |
4268 | * | |
4269 | * @param env (IN) A pointer to the java environment | |
4270 | * @param js (IN) The java string to copy | |
4271 | * @param has_exception (OUT) will be set to JNI_TRUE | |
4272 | * if an OutOfMemoryError exception occurs | |
4273 | * | |
4274 | * @return A pointer to the copied string, or a | |
4275 | * nullptr if has_exception == JNI_TRUE | |
4276 | */ | |
4277 | static std::unique_ptr<char[]> copyString(JNIEnv* env, jstring js, | |
4278 | jboolean* has_exception) { | |
4279 | const char *utf = env->GetStringUTFChars(js, nullptr); | |
4280 | if(utf == nullptr) { | |
4281 | // exception thrown: OutOfMemoryError | |
4282 | env->ExceptionCheck(); | |
4283 | *has_exception = JNI_TRUE; | |
4284 | return nullptr; | |
4285 | } else if(env->ExceptionCheck()) { | |
4286 | // exception thrown | |
4287 | env->ReleaseStringUTFChars(js, utf); | |
4288 | *has_exception = JNI_TRUE; | |
4289 | return nullptr; | |
4290 | } | |
4291 | ||
4292 | const jsize utf_len = env->GetStringUTFLength(js); | |
4293 | std::unique_ptr<char[]> str(new char[utf_len + 1]); // Note: + 1 is needed for the c_str null terminator | |
4294 | std::strcpy(str.get(), utf); | |
4295 | env->ReleaseStringUTFChars(js, utf); | |
4296 | *has_exception = JNI_FALSE; | |
4297 | return str; | |
7c673cae FG |
4298 | } |
4299 | ||
4300 | /** | |
4301 | * Copies a jstring to a std::string | |
4302 | * and releases the original jstring | |
4303 | * | |
4304 | * If an exception occurs, then JNIEnv::ExceptionCheck() | |
4305 | * will have been called | |
4306 | * | |
4307 | * @param env (IN) A pointer to the java environment | |
4308 | * @param js (IN) The java string to copy | |
4309 | * @param has_exception (OUT) will be set to JNI_TRUE | |
4310 | * if an OutOfMemoryError exception occurs | |
4311 | * | |
4312 | * @return A std:string copy of the jstring, or an | |
4313 | * empty std::string if has_exception == JNI_TRUE | |
4314 | */ | |
11fdf7f2 TL |
4315 | static std::string copyStdString(JNIEnv* env, jstring js, |
4316 | jboolean* has_exception) { | |
7c673cae FG |
4317 | const char *utf = env->GetStringUTFChars(js, nullptr); |
4318 | if(utf == nullptr) { | |
4319 | // exception thrown: OutOfMemoryError | |
4320 | env->ExceptionCheck(); | |
4321 | *has_exception = JNI_TRUE; | |
4322 | return std::string(); | |
4323 | } else if(env->ExceptionCheck()) { | |
4324 | // exception thrown | |
4325 | env->ReleaseStringUTFChars(js, utf); | |
4326 | *has_exception = JNI_TRUE; | |
4327 | return std::string(); | |
4328 | } | |
4329 | ||
4330 | std::string name(utf); | |
4331 | env->ReleaseStringUTFChars(js, utf); | |
4332 | *has_exception = JNI_FALSE; | |
4333 | return name; | |
4334 | } | |
4335 | ||
4336 | /** | |
4337 | * Copies bytes from a std::string to a jByteArray | |
4338 | * | |
4339 | * @param env A pointer to the java environment | |
4340 | * @param bytes The bytes to copy | |
4341 | * | |
4342 | * @return the Java byte[] or nullptr if an exception occurs | |
11fdf7f2 TL |
4343 | * |
4344 | * @throws RocksDBException thrown | |
4345 | * if memory size to copy exceeds general java specific array size limitation. | |
7c673cae FG |
4346 | */ |
4347 | static jbyteArray copyBytes(JNIEnv* env, std::string bytes) { | |
11fdf7f2 | 4348 | return createJavaByteArrayWithSizeCheck(env, bytes.c_str(), bytes.size()); |
7c673cae FG |
4349 | } |
4350 | ||
4351 | /** | |
4352 | * Given a Java byte[][] which is an array of java.lang.Strings | |
4353 | * where each String is a byte[], the passed function `string_fn` | |
4354 | * will be called on each String, the result is the collected by | |
4355 | * calling the passed function `collector_fn` | |
4356 | * | |
4357 | * @param env (IN) A pointer to the java environment | |
4358 | * @param jbyte_strings (IN) A Java array of Strings expressed as bytes | |
4359 | * @param string_fn (IN) A transform function to call for each String | |
4360 | * @param collector_fn (IN) A collector which is called for the result | |
4361 | * of each `string_fn` | |
4362 | * @param has_exception (OUT) will be set to JNI_TRUE | |
4363 | * if an ArrayIndexOutOfBoundsException or OutOfMemoryError | |
4364 | * exception occurs | |
4365 | */ | |
4366 | template <typename T> static void byteStrings(JNIEnv* env, | |
4367 | jobjectArray jbyte_strings, | |
4368 | std::function<T(const char*, const size_t)> string_fn, | |
4369 | std::function<void(size_t, T)> collector_fn, | |
4370 | jboolean *has_exception) { | |
4371 | const jsize jlen = env->GetArrayLength(jbyte_strings); | |
4372 | ||
4373 | for(jsize i = 0; i < jlen; i++) { | |
4374 | jobject jbyte_string_obj = env->GetObjectArrayElement(jbyte_strings, i); | |
4375 | if(env->ExceptionCheck()) { | |
4376 | // exception thrown: ArrayIndexOutOfBoundsException | |
4377 | *has_exception = JNI_TRUE; // signal error | |
4378 | return; | |
4379 | } | |
4380 | ||
4381 | jbyteArray jbyte_string_ary = | |
4382 | reinterpret_cast<jbyteArray>(jbyte_string_obj); | |
4383 | T result = byteString(env, jbyte_string_ary, string_fn, has_exception); | |
4384 | ||
4385 | env->DeleteLocalRef(jbyte_string_obj); | |
4386 | ||
4387 | if(*has_exception == JNI_TRUE) { | |
4388 | // exception thrown: OutOfMemoryError | |
4389 | return; | |
4390 | } | |
4391 | ||
4392 | collector_fn(i, result); | |
4393 | } | |
4394 | ||
4395 | *has_exception = JNI_FALSE; | |
4396 | } | |
4397 | ||
4398 | /** | |
4399 | * Given a Java String which is expressed as a Java Byte Array byte[], | |
4400 | * the passed function `string_fn` will be called on the String | |
4401 | * and the result returned | |
4402 | * | |
4403 | * @param env (IN) A pointer to the java environment | |
4404 | * @param jbyte_string_ary (IN) A Java String expressed in bytes | |
4405 | * @param string_fn (IN) A transform function to call on the String | |
4406 | * @param has_exception (OUT) will be set to JNI_TRUE | |
4407 | * if an OutOfMemoryError exception occurs | |
4408 | */ | |
4409 | template <typename T> static T byteString(JNIEnv* env, | |
4410 | jbyteArray jbyte_string_ary, | |
4411 | std::function<T(const char*, const size_t)> string_fn, | |
4412 | jboolean* has_exception) { | |
4413 | const jsize jbyte_string_len = env->GetArrayLength(jbyte_string_ary); | |
11fdf7f2 TL |
4414 | return byteString<T>(env, jbyte_string_ary, jbyte_string_len, string_fn, |
4415 | has_exception); | |
4416 | } | |
4417 | ||
4418 | /** | |
4419 | * Given a Java String which is expressed as a Java Byte Array byte[], | |
4420 | * the passed function `string_fn` will be called on the String | |
4421 | * and the result returned | |
4422 | * | |
4423 | * @param env (IN) A pointer to the java environment | |
4424 | * @param jbyte_string_ary (IN) A Java String expressed in bytes | |
4425 | * @param jbyte_string_len (IN) The length of the Java String | |
4426 | * expressed in bytes | |
4427 | * @param string_fn (IN) A transform function to call on the String | |
4428 | * @param has_exception (OUT) will be set to JNI_TRUE | |
4429 | * if an OutOfMemoryError exception occurs | |
4430 | */ | |
4431 | template <typename T> static T byteString(JNIEnv* env, | |
4432 | jbyteArray jbyte_string_ary, const jsize jbyte_string_len, | |
4433 | std::function<T(const char*, const size_t)> string_fn, | |
4434 | jboolean* has_exception) { | |
7c673cae FG |
4435 | jbyte* jbyte_string = |
4436 | env->GetByteArrayElements(jbyte_string_ary, nullptr); | |
4437 | if(jbyte_string == nullptr) { | |
4438 | // exception thrown: OutOfMemoryError | |
4439 | *has_exception = JNI_TRUE; | |
4440 | return nullptr; // signal error | |
4441 | } | |
4442 | ||
4443 | T result = | |
4444 | string_fn(reinterpret_cast<char *>(jbyte_string), jbyte_string_len); | |
4445 | ||
4446 | env->ReleaseByteArrayElements(jbyte_string_ary, jbyte_string, JNI_ABORT); | |
4447 | ||
4448 | *has_exception = JNI_FALSE; | |
4449 | return result; | |
4450 | } | |
4451 | ||
4452 | /** | |
4453 | * Converts a std::vector<string> to a Java byte[][] where each Java String | |
4454 | * is expressed as a Java Byte Array byte[]. | |
4455 | * | |
4456 | * @param env A pointer to the java environment | |
4457 | * @param strings A vector of Strings | |
4458 | * | |
4459 | * @return A Java array of Strings expressed as bytes | |
4460 | */ | |
4461 | static jobjectArray stringsBytes(JNIEnv* env, std::vector<std::string> strings) { | |
4462 | jclass jcls_ba = ByteJni::getArrayJClass(env); | |
4463 | if(jcls_ba == nullptr) { | |
4464 | // exception occurred | |
4465 | return nullptr; | |
4466 | } | |
4467 | ||
4468 | const jsize len = static_cast<jsize>(strings.size()); | |
4469 | ||
4470 | jobjectArray jbyte_strings = env->NewObjectArray(len, jcls_ba, nullptr); | |
4471 | if(jbyte_strings == nullptr) { | |
4472 | // exception thrown: OutOfMemoryError | |
4473 | return nullptr; | |
4474 | } | |
4475 | ||
4476 | for (jsize i = 0; i < len; i++) { | |
4477 | std::string *str = &strings[i]; | |
4478 | const jsize str_len = static_cast<jsize>(str->size()); | |
4479 | ||
4480 | jbyteArray jbyte_string_ary = env->NewByteArray(str_len); | |
4481 | if(jbyte_string_ary == nullptr) { | |
4482 | // exception thrown: OutOfMemoryError | |
4483 | env->DeleteLocalRef(jbyte_strings); | |
4484 | return nullptr; | |
4485 | } | |
4486 | ||
4487 | env->SetByteArrayRegion( | |
4488 | jbyte_string_ary, 0, str_len, | |
4489 | const_cast<jbyte*>(reinterpret_cast<const jbyte*>(str->c_str()))); | |
4490 | if(env->ExceptionCheck()) { | |
4491 | // exception thrown: ArrayIndexOutOfBoundsException | |
4492 | env->DeleteLocalRef(jbyte_string_ary); | |
4493 | env->DeleteLocalRef(jbyte_strings); | |
4494 | return nullptr; | |
4495 | } | |
4496 | ||
4497 | env->SetObjectArrayElement(jbyte_strings, i, jbyte_string_ary); | |
4498 | if(env->ExceptionCheck()) { | |
4499 | // exception thrown: ArrayIndexOutOfBoundsException | |
4500 | // or ArrayStoreException | |
4501 | env->DeleteLocalRef(jbyte_string_ary); | |
4502 | env->DeleteLocalRef(jbyte_strings); | |
4503 | return nullptr; | |
4504 | } | |
4505 | ||
4506 | env->DeleteLocalRef(jbyte_string_ary); | |
4507 | } | |
4508 | ||
4509 | return jbyte_strings; | |
4510 | } | |
11fdf7f2 TL |
4511 | |
4512 | /** | |
4513 | * Copies bytes to a new jByteArray with the check of java array size limitation. | |
4514 | * | |
4515 | * @param bytes pointer to memory to copy to a new jByteArray | |
4516 | * @param size number of bytes to copy | |
4517 | * | |
4518 | * @return the Java byte[] or nullptr if an exception occurs | |
4519 | * | |
4520 | * @throws RocksDBException thrown | |
4521 | * if memory size to copy exceeds general java array size limitation to avoid overflow. | |
4522 | */ | |
4523 | static jbyteArray createJavaByteArrayWithSizeCheck(JNIEnv* env, const char* bytes, const size_t size) { | |
4524 | // Limitation for java array size is vm specific | |
4525 | // In general it cannot exceed Integer.MAX_VALUE (2^31 - 1) | |
4526 | // Current HotSpot VM limitation for array size is Integer.MAX_VALUE - 5 (2^31 - 1 - 5) | |
4527 | // It means that the next call to env->NewByteArray can still end with | |
4528 | // OutOfMemoryError("Requested array size exceeds VM limit") coming from VM | |
4529 | static const size_t MAX_JARRAY_SIZE = (static_cast<size_t>(1)) << 31; | |
4530 | if(size > MAX_JARRAY_SIZE) { | |
4531 | rocksdb::RocksDBExceptionJni::ThrowNew(env, "Requested array size exceeds VM limit"); | |
4532 | return nullptr; | |
4533 | } | |
4534 | ||
4535 | const jsize jlen = static_cast<jsize>(size); | |
4536 | jbyteArray jbytes = env->NewByteArray(jlen); | |
4537 | if(jbytes == nullptr) { | |
4538 | // exception thrown: OutOfMemoryError | |
4539 | return nullptr; | |
4540 | } | |
4541 | ||
4542 | env->SetByteArrayRegion(jbytes, 0, jlen, | |
4543 | const_cast<jbyte*>(reinterpret_cast<const jbyte*>(bytes))); | |
4544 | if(env->ExceptionCheck()) { | |
4545 | // exception thrown: ArrayIndexOutOfBoundsException | |
4546 | env->DeleteLocalRef(jbytes); | |
4547 | return nullptr; | |
4548 | } | |
4549 | ||
4550 | return jbytes; | |
4551 | } | |
4552 | ||
4553 | /** | |
4554 | * Copies bytes from a rocksdb::Slice to a jByteArray | |
4555 | * | |
4556 | * @param env A pointer to the java environment | |
4557 | * @param bytes The bytes to copy | |
4558 | * | |
4559 | * @return the Java byte[] or nullptr if an exception occurs | |
4560 | * | |
4561 | * @throws RocksDBException thrown | |
4562 | * if memory size to copy exceeds general java specific array size limitation. | |
4563 | */ | |
4564 | static jbyteArray copyBytes(JNIEnv* env, const Slice& bytes) { | |
4565 | return createJavaByteArrayWithSizeCheck(env, bytes.data(), bytes.size()); | |
4566 | } | |
7c673cae FG |
4567 | |
4568 | /* | |
4569 | * Helper for operations on a key and value | |
4570 | * for example WriteBatch->Put | |
4571 | * | |
11fdf7f2 | 4572 | * TODO(AR) could be used for RocksDB->Put etc. |
7c673cae | 4573 | */ |
11fdf7f2 TL |
4574 | static std::unique_ptr<rocksdb::Status> kv_op( |
4575 | std::function<rocksdb::Status(rocksdb::Slice, rocksdb::Slice)> op, | |
4576 | JNIEnv* env, jobject /*jobj*/, | |
7c673cae | 4577 | jbyteArray jkey, jint jkey_len, |
11fdf7f2 | 4578 | jbyteArray jvalue, jint jvalue_len) { |
7c673cae FG |
4579 | jbyte* key = env->GetByteArrayElements(jkey, nullptr); |
4580 | if(env->ExceptionCheck()) { | |
4581 | // exception thrown: OutOfMemoryError | |
11fdf7f2 | 4582 | return nullptr; |
7c673cae FG |
4583 | } |
4584 | ||
11fdf7f2 | 4585 | jbyte* value = env->GetByteArrayElements(jvalue, nullptr); |
7c673cae FG |
4586 | if(env->ExceptionCheck()) { |
4587 | // exception thrown: OutOfMemoryError | |
4588 | if(key != nullptr) { | |
4589 | env->ReleaseByteArrayElements(jkey, key, JNI_ABORT); | |
4590 | } | |
11fdf7f2 | 4591 | return nullptr; |
7c673cae FG |
4592 | } |
4593 | ||
4594 | rocksdb::Slice key_slice(reinterpret_cast<char*>(key), jkey_len); | |
4595 | rocksdb::Slice value_slice(reinterpret_cast<char*>(value), | |
11fdf7f2 | 4596 | jvalue_len); |
7c673cae | 4597 | |
11fdf7f2 | 4598 | auto status = op(key_slice, value_slice); |
7c673cae FG |
4599 | |
4600 | if(value != nullptr) { | |
11fdf7f2 | 4601 | env->ReleaseByteArrayElements(jvalue, value, JNI_ABORT); |
7c673cae FG |
4602 | } |
4603 | if(key != nullptr) { | |
4604 | env->ReleaseByteArrayElements(jkey, key, JNI_ABORT); | |
4605 | } | |
11fdf7f2 TL |
4606 | |
4607 | return std::unique_ptr<rocksdb::Status>(new rocksdb::Status(status)); | |
7c673cae FG |
4608 | } |
4609 | ||
4610 | /* | |
4611 | * Helper for operations on a key | |
4612 | * for example WriteBatch->Delete | |
4613 | * | |
11fdf7f2 | 4614 | * TODO(AR) could be used for RocksDB->Delete etc. |
7c673cae | 4615 | */ |
11fdf7f2 TL |
4616 | static std::unique_ptr<rocksdb::Status> k_op( |
4617 | std::function<rocksdb::Status(rocksdb::Slice)> op, | |
4618 | JNIEnv* env, jobject /*jobj*/, | |
7c673cae FG |
4619 | jbyteArray jkey, jint jkey_len) { |
4620 | jbyte* key = env->GetByteArrayElements(jkey, nullptr); | |
4621 | if(env->ExceptionCheck()) { | |
4622 | // exception thrown: OutOfMemoryError | |
11fdf7f2 | 4623 | return nullptr; |
7c673cae FG |
4624 | } |
4625 | ||
4626 | rocksdb::Slice key_slice(reinterpret_cast<char*>(key), jkey_len); | |
4627 | ||
11fdf7f2 | 4628 | auto status = op(key_slice); |
7c673cae FG |
4629 | |
4630 | if(key != nullptr) { | |
4631 | env->ReleaseByteArrayElements(jkey, key, JNI_ABORT); | |
4632 | } | |
11fdf7f2 TL |
4633 | |
4634 | return std::unique_ptr<rocksdb::Status>(new rocksdb::Status(status)); | |
7c673cae FG |
4635 | } |
4636 | ||
4637 | /* | |
4638 | * Helper for operations on a value | |
4639 | * for example WriteBatchWithIndex->GetFromBatch | |
4640 | */ | |
4641 | static jbyteArray v_op( | |
4642 | std::function<rocksdb::Status(rocksdb::Slice, std::string*)> op, | |
4643 | JNIEnv* env, jbyteArray jkey, jint jkey_len) { | |
4644 | jbyte* key = env->GetByteArrayElements(jkey, nullptr); | |
4645 | if(env->ExceptionCheck()) { | |
4646 | // exception thrown: OutOfMemoryError | |
4647 | return nullptr; | |
4648 | } | |
4649 | ||
4650 | rocksdb::Slice key_slice(reinterpret_cast<char*>(key), jkey_len); | |
4651 | ||
4652 | std::string value; | |
4653 | rocksdb::Status s = op(key_slice, &value); | |
4654 | ||
4655 | if(key != nullptr) { | |
4656 | env->ReleaseByteArrayElements(jkey, key, JNI_ABORT); | |
4657 | } | |
4658 | ||
4659 | if (s.IsNotFound()) { | |
4660 | return nullptr; | |
4661 | } | |
4662 | ||
4663 | if (s.ok()) { | |
4664 | jbyteArray jret_value = | |
4665 | env->NewByteArray(static_cast<jsize>(value.size())); | |
4666 | if(jret_value == nullptr) { | |
4667 | // exception thrown: OutOfMemoryError | |
4668 | return nullptr; | |
4669 | } | |
4670 | ||
4671 | env->SetByteArrayRegion(jret_value, 0, static_cast<jsize>(value.size()), | |
4672 | const_cast<jbyte*>(reinterpret_cast<const jbyte*>(value.c_str()))); | |
4673 | if(env->ExceptionCheck()) { | |
4674 | // exception thrown: ArrayIndexOutOfBoundsException | |
4675 | if(jret_value != nullptr) { | |
4676 | env->DeleteLocalRef(jret_value); | |
4677 | } | |
4678 | return nullptr; | |
4679 | } | |
4680 | ||
4681 | return jret_value; | |
4682 | } | |
4683 | ||
4684 | rocksdb::RocksDBExceptionJni::ThrowNew(env, s); | |
4685 | return nullptr; | |
4686 | } | |
4687 | }; | |
4688 | ||
11fdf7f2 TL |
4689 | class ColumnFamilyDescriptorJni : public JavaClass { |
4690 | public: | |
4691 | /** | |
4692 | * Get the Java Class org.rocksdb.ColumnFamilyDescriptor | |
4693 | * | |
4694 | * @param env A pointer to the Java environment | |
4695 | * | |
4696 | * @return The Java Class or nullptr if one of the | |
4697 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
4698 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
4699 | */ | |
4700 | static jclass getJClass(JNIEnv* env) { | |
4701 | return JavaClass::getJClass(env, "org/rocksdb/ColumnFamilyDescriptor"); | |
4702 | } | |
4703 | ||
4704 | /** | |
4705 | * Create a new Java org.rocksdb.ColumnFamilyDescriptor object with the same | |
4706 | * properties as the provided C++ rocksdb::ColumnFamilyDescriptor object | |
4707 | * | |
4708 | * @param env A pointer to the Java environment | |
4709 | * @param cfd A pointer to rocksdb::ColumnFamilyDescriptor object | |
4710 | * | |
4711 | * @return A reference to a Java org.rocksdb.ColumnFamilyDescriptor object, or | |
4712 | * nullptr if an an exception occurs | |
4713 | */ | |
4714 | static jobject construct(JNIEnv* env, ColumnFamilyDescriptor* cfd) { | |
4715 | jbyteArray jcf_name = JniUtil::copyBytes(env, cfd->name); | |
4716 | jobject cfopts = ColumnFamilyOptionsJni::construct(env, &(cfd->options)); | |
4717 | ||
4718 | jclass jclazz = getJClass(env); | |
4719 | if (jclazz == nullptr) { | |
4720 | // exception occurred accessing class | |
4721 | return nullptr; | |
4722 | } | |
4723 | ||
4724 | jmethodID mid = env->GetMethodID(jclazz, "<init>", | |
4725 | "([BLorg/rocksdb/ColumnFamilyOptions;)V"); | |
4726 | if (mid == nullptr) { | |
4727 | // exception thrown: NoSuchMethodException or OutOfMemoryError | |
4728 | env->DeleteLocalRef(jcf_name); | |
4729 | return nullptr; | |
4730 | } | |
4731 | ||
4732 | jobject jcfd = env->NewObject(jclazz, mid, jcf_name, cfopts); | |
4733 | if (env->ExceptionCheck()) { | |
4734 | env->DeleteLocalRef(jcf_name); | |
4735 | return nullptr; | |
4736 | } | |
4737 | ||
4738 | return jcfd; | |
4739 | } | |
4740 | ||
4741 | /** | |
4742 | * Get the Java Method: ColumnFamilyDescriptor#columnFamilyName | |
4743 | * | |
4744 | * @param env A pointer to the Java environment | |
4745 | * | |
4746 | * @return The Java Method ID or nullptr if the class or method id could not | |
4747 | * be retieved | |
4748 | */ | |
4749 | static jmethodID getColumnFamilyNameMethod(JNIEnv* env) { | |
4750 | jclass jclazz = getJClass(env); | |
4751 | if (jclazz == nullptr) { | |
4752 | // exception occurred accessing class | |
4753 | return nullptr; | |
4754 | } | |
4755 | ||
4756 | static jmethodID mid = env->GetMethodID(jclazz, "columnFamilyName", "()[B"); | |
4757 | assert(mid != nullptr); | |
4758 | return mid; | |
4759 | } | |
4760 | ||
4761 | /** | |
4762 | * Get the Java Method: ColumnFamilyDescriptor#columnFamilyOptions | |
4763 | * | |
4764 | * @param env A pointer to the Java environment | |
4765 | * | |
4766 | * @return The Java Method ID or nullptr if the class or method id could not | |
4767 | * be retieved | |
4768 | */ | |
4769 | static jmethodID getColumnFamilyOptionsMethod(JNIEnv* env) { | |
4770 | jclass jclazz = getJClass(env); | |
4771 | if (jclazz == nullptr) { | |
4772 | // exception occurred accessing class | |
4773 | return nullptr; | |
4774 | } | |
4775 | ||
4776 | static jmethodID mid = env->GetMethodID( | |
4777 | jclazz, "columnFamilyOptions", "()Lorg/rocksdb/ColumnFamilyOptions;"); | |
4778 | assert(mid != nullptr); | |
4779 | return mid; | |
4780 | } | |
4781 | }; | |
4782 | ||
4783 | class MapJni : public JavaClass { | |
4784 | public: | |
4785 | /** | |
4786 | * Get the Java Class java.util.Map | |
4787 | * | |
4788 | * @param env A pointer to the Java environment | |
4789 | * | |
4790 | * @return The Java Class or nullptr if one of the | |
4791 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
4792 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
4793 | */ | |
4794 | static jclass getClass(JNIEnv* env) { | |
4795 | return JavaClass::getJClass(env, "java/util/Map"); | |
4796 | } | |
4797 | ||
4798 | /** | |
4799 | * Get the Java Method: Map#put | |
4800 | * | |
4801 | * @param env A pointer to the Java environment | |
4802 | * | |
4803 | * @return The Java Method ID or nullptr if the class or method id could not | |
4804 | * be retieved | |
4805 | */ | |
4806 | static jmethodID getMapPutMethodId(JNIEnv* env) { | |
4807 | jclass jlist_clazz = getClass(env); | |
4808 | if(jlist_clazz == nullptr) { | |
4809 | // exception occurred accessing class | |
4810 | return nullptr; | |
4811 | } | |
4812 | ||
4813 | static jmethodID mid = | |
4814 | env->GetMethodID(jlist_clazz, "put", "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;"); | |
4815 | assert(mid != nullptr); | |
4816 | return mid; | |
4817 | } | |
4818 | }; | |
4819 | ||
4820 | class HashMapJni : public JavaClass { | |
4821 | public: | |
4822 | /** | |
4823 | * Get the Java Class java.util.HashMap | |
4824 | * | |
4825 | * @param env A pointer to the Java environment | |
4826 | * | |
4827 | * @return The Java Class or nullptr if one of the | |
4828 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
4829 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
4830 | */ | |
4831 | static jclass getJClass(JNIEnv* env) { | |
4832 | return JavaClass::getJClass(env, "java/util/HashMap"); | |
4833 | } | |
4834 | ||
4835 | /** | |
4836 | * Create a new Java java.util.HashMap object. | |
4837 | * | |
4838 | * @param env A pointer to the Java environment | |
4839 | * | |
4840 | * @return A reference to a Java java.util.HashMap object, or | |
4841 | * nullptr if an an exception occurs | |
4842 | */ | |
4843 | static jobject construct(JNIEnv* env, const uint32_t initial_capacity = 16) { | |
4844 | jclass jclazz = getJClass(env); | |
4845 | if (jclazz == nullptr) { | |
4846 | // exception occurred accessing class | |
4847 | return nullptr; | |
4848 | } | |
4849 | ||
4850 | jmethodID mid = env->GetMethodID(jclazz, "<init>", "(I)V"); | |
4851 | if (mid == nullptr) { | |
4852 | // exception thrown: NoSuchMethodException or OutOfMemoryError | |
4853 | return nullptr; | |
4854 | } | |
4855 | ||
4856 | jobject jhash_map = env->NewObject(jclazz, mid, static_cast<jint>(initial_capacity)); | |
4857 | if (env->ExceptionCheck()) { | |
4858 | return nullptr; | |
4859 | } | |
4860 | ||
4861 | return jhash_map; | |
4862 | } | |
4863 | ||
4864 | /** | |
4865 | * A function which maps a std::pair<K,V> to a std::pair<jobject, jobject> | |
4866 | * | |
4867 | * @return Either a pointer to a std::pair<jobject, jobject>, or nullptr | |
4868 | * if an error occurs during the mapping | |
4869 | */ | |
4870 | template <typename K, typename V> | |
4871 | using FnMapKV = std::function<std::unique_ptr<std::pair<jobject, jobject>> (const std::pair<K, V>&)>; | |
4872 | ||
4873 | // template <class I, typename K, typename V, typename K1, typename V1, typename std::enable_if<std::is_same<typename std::iterator_traits<I>::value_type, std::pair<const K,V>>::value, int32_t>::type = 0> | |
4874 | // static void putAll(JNIEnv* env, const jobject jhash_map, I iterator, const FnMapKV<const K,V,K1,V1> &fn_map_kv) { | |
4875 | /** | |
4876 | * Returns true if it succeeds, false if an error occurs | |
4877 | */ | |
4878 | template<class iterator_type, typename K, typename V> | |
4879 | static bool putAll(JNIEnv* env, const jobject jhash_map, iterator_type iterator, iterator_type end, const FnMapKV<K, V> &fn_map_kv) { | |
4880 | const jmethodID jmid_put = rocksdb::MapJni::getMapPutMethodId(env); | |
4881 | if (jmid_put == nullptr) { | |
4882 | return false; | |
4883 | } | |
4884 | ||
4885 | for (auto it = iterator; it != end; ++it) { | |
4886 | const std::unique_ptr<std::pair<jobject, jobject>> result = fn_map_kv(*it); | |
4887 | if (result == nullptr) { | |
4888 | // an error occurred during fn_map_kv | |
4889 | return false; | |
4890 | } | |
4891 | env->CallObjectMethod(jhash_map, jmid_put, result->first, result->second); | |
4892 | if (env->ExceptionCheck()) { | |
4893 | // exception occurred | |
4894 | env->DeleteLocalRef(result->second); | |
4895 | env->DeleteLocalRef(result->first); | |
4896 | return false; | |
4897 | } | |
4898 | ||
4899 | // release local references | |
4900 | env->DeleteLocalRef(result->second); | |
4901 | env->DeleteLocalRef(result->first); | |
4902 | } | |
4903 | ||
4904 | return true; | |
4905 | } | |
4906 | }; | |
4907 | ||
4908 | class LongJni : public JavaClass { | |
4909 | public: | |
4910 | /** | |
4911 | * Get the Java Class java.lang.Long | |
4912 | * | |
4913 | * @param env A pointer to the Java environment | |
4914 | * | |
4915 | * @return The Java Class or nullptr if one of the | |
4916 | * ClassFormatError, ClassCircularityError, NoClassDefFoundError, | |
4917 | * OutOfMemoryError or ExceptionInInitializerError exceptions is thrown | |
4918 | */ | |
4919 | static jclass getJClass(JNIEnv* env) { | |
4920 | return JavaClass::getJClass(env, "java/lang/Long"); | |
4921 | } | |
4922 | ||
4923 | static jobject valueOf(JNIEnv* env, jlong jprimitive_long) { | |
4924 | jclass jclazz = getJClass(env); | |
4925 | if (jclazz == nullptr) { | |
4926 | // exception occurred accessing class | |
4927 | return nullptr; | |
4928 | } | |
4929 | ||
4930 | jmethodID mid = | |
4931 | env->GetStaticMethodID(jclazz, "valueOf", "(J)Ljava/lang/Long;"); | |
4932 | if (mid == nullptr) { | |
4933 | // exception thrown: NoSuchMethodException or OutOfMemoryError | |
4934 | return nullptr; | |
4935 | } | |
4936 | ||
4937 | const jobject jlong_obj = | |
4938 | env->CallStaticObjectMethod(jclazz, mid, jprimitive_long); | |
4939 | if (env->ExceptionCheck()) { | |
4940 | // exception occurred | |
4941 | return nullptr; | |
4942 | } | |
4943 | ||
4944 | return jlong_obj; | |
4945 | } | |
4946 | }; | |
7c673cae FG |
4947 | } // namespace rocksdb |
4948 | #endif // JAVA_ROCKSJNI_PORTAL_H_ |