diff options
Diffstat (limited to 'guava/src/com/google/common/util/concurrent/ForwardingExecutorService.java')
-rw-r--r-- | guava/src/com/google/common/util/concurrent/ForwardingExecutorService.java | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/guava/src/com/google/common/util/concurrent/ForwardingExecutorService.java b/guava/src/com/google/common/util/concurrent/ForwardingExecutorService.java new file mode 100644 index 0000000..9c09af0 --- /dev/null +++ b/guava/src/com/google/common/util/concurrent/ForwardingExecutorService.java @@ -0,0 +1,117 @@ +/* + * Copyright (C) 2011 The Guava Authors + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com.google.common.util.concurrent; + +import com.google.common.collect.ForwardingObject; + +import java.util.Collection; +import java.util.List; +import java.util.concurrent.Callable; +import java.util.concurrent.ExecutionException; +import java.util.concurrent.ExecutorService; +import java.util.concurrent.Future; +import java.util.concurrent.TimeUnit; +import java.util.concurrent.TimeoutException; + +/** + * An executor service which forwards all its method calls to another executor + * service. Subclasses should override one or more methods to modify the + * behavior of the backing executor service as desired per the <a + * href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator pattern</a>. + * + * @author Kurt Alfred Kluever + * @since 10.0 + */ +public abstract class ForwardingExecutorService extends ForwardingObject + implements ExecutorService { + /** Constructor for use by subclasses. */ + protected ForwardingExecutorService() {} + + @Override + protected abstract ExecutorService delegate(); + + @Override + public boolean awaitTermination(long timeout, TimeUnit unit) + throws InterruptedException { + return delegate().awaitTermination(timeout, unit); + } + + @Override + public <T> List<Future<T>> invokeAll( + Collection<? extends Callable<T>> tasks) throws InterruptedException { + return delegate().invokeAll(tasks); + } + + @Override + public <T> List<Future<T>> invokeAll( + Collection<? extends Callable<T>> tasks, long timeout, TimeUnit unit) + throws InterruptedException { + return delegate().invokeAll(tasks, timeout, unit); + } + + @Override + public <T> T invokeAny(Collection<? extends Callable<T>> tasks) + throws InterruptedException, ExecutionException { + return delegate().invokeAny(tasks); + } + + @Override + public <T> T invokeAny( + Collection<? extends Callable<T>> tasks, long timeout, TimeUnit unit) + throws InterruptedException, ExecutionException, TimeoutException { + return delegate().invokeAny(tasks, timeout, unit); + } + + @Override + public boolean isShutdown() { + return delegate().isShutdown(); + } + + @Override + public boolean isTerminated() { + return delegate().isTerminated(); + } + + @Override + public void shutdown() { + delegate().shutdown(); + } + + @Override + public List<Runnable> shutdownNow() { + return delegate().shutdownNow(); + } + + @Override + public void execute(Runnable command) { + delegate().execute(command); + } + + public <T> Future<T> submit(Callable<T> task) { + return delegate().submit(task); + } + + @Override + public Future<?> submit(Runnable task) { + return delegate().submit(task); + } + + @Override + public <T> Future<T> submit(Runnable task, T result) { + return delegate().submit(task, result); + } +} |