1 /*
2  * Copyright 2018, 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 JOBJECT_HOLDER_H_
18 
19 #define JOBJECT_HOLDER_H_
20 
21 #include "jni.h"
22 #include <mediaplayer2/JavaVMHelper.h>
23 #include <utils/RefBase.h>
24 
25 namespace android {
26 
27 // Helper class for managing global reference of jobject.
28 struct JObjectHolder : public RefBase {
JObjectHolderJObjectHolder29     JObjectHolder(jobject obj) {
30         JNIEnv *env = JavaVMHelper::getJNIEnv();
31         mJObject = reinterpret_cast<jobject>(env->NewGlobalRef(obj));
32     }
33 
~JObjectHolderJObjectHolder34     virtual ~JObjectHolder() {
35         JNIEnv *env = JavaVMHelper::getJNIEnv();
36         env->DeleteGlobalRef(mJObject);
37     }
38 
getJObjectJObjectHolder39     jobject getJObject() { return mJObject; }
40 
41 private:
42     jobject mJObject;
43 };
44 
45 }  //" android
46 
47 #endif  // JOBJECT_HOLDER_H_
48