jni_data_utils.h revision 793124855de9dabb9e85b1e06619716649f087c5 
1/*
2 * Copyright (C) 2014 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#ifndef LATINIME_JNI_DATA_UTILS_H
18#define LATINIME_JNI_DATA_UTILS_H
19
20#include <vector>
21
22#include "defines.h"
23#include "jni.h"
24
25namespace latinime {
26
27class JniDataUtils {
28 public:
29    static void jintarrayToVector(JNIEnv *env, jintArray array, std::vector<int> *const outVector) {
30        if (!array) {
31            outVector->clear();
32            return;
33        }
34        const jsize arrayLength = env->GetArrayLength(array);
35        outVector->resize(arrayLength);
36        env->GetIntArrayRegion(array, 0 /* start */, arrayLength, outVector->data());
37    }
38
39 private:
40    DISALLOW_IMPLICIT_CONSTRUCTORS(JniDataUtils);
41};
42} // namespace latinime
43#endif // LATINIME_JNI_DATA_UTILS_H
44