1 /*
2  * Copyright (C) 2020 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 package android.media.permission;
18 
19 import android.annotation.NonNull;
20 
21 /**
22  * A composite {@link SafeCloseable}. Will close its children in reverse order.
23  *
24  * @hide
25  */
26 class CompositeSafeCloseable implements SafeCloseable {
27     private final @NonNull SafeCloseable[] mChildren;
28 
CompositeSafeCloseable(@onNull SafeCloseable... children)29     CompositeSafeCloseable(@NonNull SafeCloseable... children) {
30         mChildren = children;
31     }
32 
33     @Override
close()34     public void close() {
35         // Close in reverse order.
36         for (int i = mChildren.length - 1; i >= 0; --i) {
37             mChildren[i].close();
38         }
39     }
40 }
41