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1 | /* |
2 | * Licensed to the Apache Software Foundation (ASF) under one or more | |
3 | * contributor license agreements. See the NOTICE file distributed with | |
4 | * this work for additional information regarding copyright ownership. | |
5 | * The ASF licenses this file to You under the Apache License, Version 2.0 | |
6 | * (the "License"); you may not use this file except in compliance with | |
7 | * the License. You may obtain a copy of the License at | |
8 | * | |
9 | * http://www.apache.org/licenses/LICENSE-2.0 | |
10 | * | |
11 | * Unless required by applicable law or agreed to in writing, software | |
12 | * distributed under the License is distributed on an "AS IS" BASIS, | |
13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
14 | * See the License for the specific language governing permissions and | |
15 | * limitations under the License. | |
16 | */ | |
17 | ||
18 | package org.apache.arrow.c.jni; | |
19 | ||
20 | /** | |
21 | * JniWrapper for C Data Interface API implementation. | |
22 | */ | |
23 | public class JniWrapper { | |
24 | private static final JniWrapper INSTANCE = new JniWrapper(); | |
25 | ||
26 | public static JniWrapper get() { | |
27 | return INSTANCE; | |
28 | } | |
29 | ||
30 | private JniWrapper() { | |
31 | // A best effort to error on 32-bit systems | |
32 | String dataModel = System.getProperty("sun.arch.data.model"); | |
33 | if (dataModel != null && dataModel.equals("32")) { | |
34 | throw new UnsupportedOperationException( | |
35 | "The Java C Data Interface implementation is currently only supported on 64-bit systems"); | |
36 | } | |
37 | JniLoader.get().ensureLoaded(); | |
38 | } | |
39 | ||
40 | public native void releaseSchema(long memoryAddress); | |
41 | ||
42 | public native void releaseArray(long memoryAddress); | |
43 | ||
44 | public native void exportSchema(long memoryAddress, PrivateData privateData); | |
45 | ||
46 | public native void exportArray(long memoryAddress, PrivateData data); | |
47 | } |