com.alibaba.rocketmq.shade.io.netty.util.concurrent.FailedFuture Maven / Gradle / Ivy
/*
* Copyright 2012 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 io.netty.util.internal.PlatformDependent;
/**
* The {@link CompleteFuture} which is failed already. It is
* recommended to use {@link EventExecutor#newFailedFuture(Throwable)}
* instead of calling the constructor of this future.
*/
public final class FailedFuture extends CompleteFuture {
private final Throwable cause;
/**
* Creates a new instance.
*
* @param executor the {@link EventExecutor} associated with this future
* @param cause the cause of failure
*/
public FailedFuture(EventExecutor executor, Throwable cause) {
super(executor);
if (cause == null) {
throw new NullPointerException("cause");
}
this.cause = cause;
}
@Override
public Throwable cause() {
return cause;
}
@Override
public boolean isSuccess() {
return false;
}
@Override
public Future sync() {
PlatformDependent.throwException(cause);
return this;
}
@Override
public Future syncUninterruptibly() {
PlatformDependent.throwException(cause);
return this;
}
@Override
public V getNow() {
return null;
}
}