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Java example source code file (CompleteFuture.java)
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The CompleteFuture.java Java example source code
/*
* Copyright 2013 The Netty Project
*
* The Netty Project licenses this file to you 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 io.netty.util.concurrent;
import java.util.concurrent.TimeUnit;
/**
* A skeletal {@link Future} implementation which represents a {@link Future} which has been completed already.
*/
public abstract class CompleteFuture<V> extends AbstractFuture {
private final EventExecutor executor;
/**
* Creates a new instance.
*
* @param executor the {@link EventExecutor} associated with this future
*/
protected CompleteFuture(EventExecutor executor) {
this.executor = executor;
}
/**
* Return the {@link EventExecutor} which is used by this {@link CompleteFuture}.
*/
protected EventExecutor executor() {
return executor;
}
@Override
public Future<V> addListener(GenericFutureListener> listener) {
if (listener == null) {
throw new NullPointerException("listener");
}
DefaultPromise.notifyListener(executor(), this, listener);
return this;
}
@Override
public Future<V> addListeners(GenericFutureListener>... listeners) {
if (listeners == null) {
throw new NullPointerException("listeners");
}
for (GenericFutureListener<? extends Future l: listeners) {
if (l == null) {
break;
}
DefaultPromise.notifyListener(executor(), this, l);
}
return this;
}
@Override
public Future<V> removeListener(GenericFutureListener> listener) {
// NOOP
return this;
}
@Override
public Future<V> removeListeners(GenericFutureListener>... listeners) {
// NOOP
return this;
}
@Override
public Future<V> await() throws InterruptedException {
if (Thread.interrupted()) {
throw new InterruptedException();
}
return this;
}
@Override
public boolean await(long timeout, TimeUnit unit) throws InterruptedException {
if (Thread.interrupted()) {
throw new InterruptedException();
}
return true;
}
@Override
public Future<V> sync() throws InterruptedException {
return this;
}
@Override
public Future<V> syncUninterruptibly() {
return this;
}
@Override
public boolean await(long timeoutMillis) throws InterruptedException {
if (Thread.interrupted()) {
throw new InterruptedException();
}
return true;
}
@Override
public Future<V> awaitUninterruptibly() {
return this;
}
@Override
public boolean awaitUninterruptibly(long timeout, TimeUnit unit) {
return true;
}
@Override
public boolean awaitUninterruptibly(long timeoutMillis) {
return true;
}
@Override
public boolean isDone() {
return true;
}
@Override
public boolean isCancellable() {
return false;
}
@Override
public boolean isCancelled() {
return false;
}
@Override
public boolean cancel(boolean mayInterruptIfRunning) {
return false;
}
}
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