netty5/transport/src/main/java/io/netty/channel/ChannelFutureNotifier.java

63 lines
1.8 KiB
Java

/*
* 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 ChannelFutureNotifier implements ChannelFutureListener {
private final ChannelFuture[] futures;
public ChannelFutureNotifier(ChannelFuture... futures) {
if (futures == null) {
throw new NullPointerException("futures");
}
this.futures = futures.clone();
}
@Override
public void operationComplete(ChannelFuture cf) throws Exception {
if (cf.isSuccess()) {
for (ChannelFuture f: futures) {
if (f == null) {
break;
}
f.setSuccess();
}
return;
}
if (cf.isCancelled()) {
for (ChannelFuture f: futures) {
if (f == null) {
break;
}
f.cancel();
}
return;
}
Throwable cause = cf.cause();
for (ChannelFuture f: futures) {
if (f == null) {
break;
}
f.setFailure(cause);
}
}
}