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 28 public ForwardingBufferQueue(BufferQueue<T> delegate) { 29 mDelegate = delegate; 30 } 31 32 @Override 33 public void close() { 34 mDelegate.close(); 35 } 36 37 @Override 38 public T getNext() throws InterruptedException, BufferQueueClosedException { 39 return mDelegate.getNext(); 40 } 41 42 @Override 43 public T getNext(long timeout, TimeUnit unit) throws InterruptedException, TimeoutException, 44 BufferQueueClosedException { 45 return mDelegate.getNext(timeout, unit); 46 } 47 48 @Override 49 public T peekNext() { 50 return mDelegate.peekNext(); 51 } 52 53 @Override 54 public void discardNext() { 55 mDelegate.discardNext(); 56 } 57 58 @Override 59 public boolean isClosed() { 60 return mDelegate.isClosed(); 61 } 62 63 @Override 64 public String toString() { 65 return mDelegate.toString(); 66 } 67 } 68
