io.netty.channel.ChannelPromiseNotifier 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.channel;
/**
* ChannelFutureListener implementation which takes other {@link ChannelFuture}(s) and notifies them on completion.
*/
public final class ChannelPromiseNotifier implements ChannelFutureListener {
private final ChannelPromise[] promises;
public ChannelPromiseNotifier(ChannelPromise... promises) {
if (promises == null) {
throw new NullPointerException("promises");
}
for (ChannelPromise promise: promises) {
if (promise == null) {
throw new IllegalArgumentException("promises contains null ChannelPromise");
}
}
this.promises = promises.clone();
}
@Override
public void operationComplete(ChannelFuture cf) throws Exception {
if (cf.isSuccess()) {
for (ChannelPromise p: promises) {
p.setSuccess();
}
return;
}
Throwable cause = cf.cause();
for (ChannelPromise p: promises) {
p.setFailure(cause);
}
}
}