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 package com.android.camera.async;
18 
19 import java.util.concurrent.TimeUnit;
20 import java.util.concurrent.TimeoutException;
21 
22 /**
23  * A BufferQueue which forwards all methods to another.
24  */
25 public abstract class ForwardingBufferQueue<T> implements BufferQueue<T> {
26     private final BufferQueue<T> mDelegate;
27 
ForwardingBufferQueue(BufferQueue<T> delegate)28     public ForwardingBufferQueue(BufferQueue<T> delegate) {
29         mDelegate = delegate;
30     }
31 
32     @Override
close()33     public void close() {
34         mDelegate.close();
35     }
36 
37     @Override
getNext()38     public T getNext() throws InterruptedException, BufferQueueClosedException {
39         return mDelegate.getNext();
40     }
41 
42     @Override
getNext(long timeout, TimeUnit unit)43     public T getNext(long timeout, TimeUnit unit) throws InterruptedException, TimeoutException,
44             BufferQueueClosedException {
45         return mDelegate.getNext(timeout, unit);
46     }
47 
48     @Override
peekNext()49     public T peekNext() {
50         return mDelegate.peekNext();
51     }
52 
53     @Override
discardNext()54     public void discardNext() {
55         mDelegate.discardNext();
56     }
57 
58     @Override
isClosed()59     public boolean isClosed() {
60         return mDelegate.isClosed();
61     }
62 
63     @Override
toString()64     public String toString() {
65         return mDelegate.toString();
66     }
67 }
68