ceph/src/java/native/JniConstants.cpp

   1 /*
   2  * Copyright (C) 2010 The Android Open Source Project
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include "JniConstants.h"
  18 #include "ScopedLocalRef.h"
  19
  20 #include <stdlib.h>
  21
  22 jclass JniConstants::inet6AddressClass;
  23 jclass JniConstants::inetAddressClass;
  24 jclass JniConstants::inetSocketAddressClass;
  25 jclass JniConstants::stringClass;
  26
  27 static jclass findClass(JNIEnv* env, const char* name) {
  28     ScopedLocalRef<jclass> localClass(env, env->FindClass(name));
  29     jclass result = reinterpret_cast<jclass>(env->NewGlobalRef(localClass.get()));
  30     if (result == NULL) {
  31         fprintf(stderr, "failed to find class '%s'", name);
  32         abort();
  33     }
  34     return result;
  35 }
  36
  37 void JniConstants::init(JNIEnv* env) {
  38     inet6AddressClass = findClass(env, "java/net/Inet6Address");
  39     inetAddressClass = findClass(env, "java/net/InetAddress");
  40     inetSocketAddressClass = findClass(env, "java/net/InetSocketAddress");
  41     stringClass = findClass(env, "java/lang/String");
  42 }