io.netty.util.concurrent.PromiseNotifier Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
/*
* Copyright 2014 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;
/**
* {@link GenericFutureListener} implementation which takes other {@link Future}s
* and notifies them on completion.
*
* @param V the type of value returned by the future
* @param F the type of future
*/
public class PromiseNotifier> implements GenericFutureListener {
private final Promise[] promises;
/**
* Create a new instance.
*
* @param promises the {@link Promise}s to notify once this {@link GenericFutureListener} is notified.
*/
@SafeVarargs
public PromiseNotifier(Promise... promises) {
if (promises == null) {
throw new NullPointerException("promises");
}
for (Promise promise: promises) {
if (promise == null) {
throw new IllegalArgumentException("promises contains null Promise");
}
}
this.promises = promises.clone();
}
@Override
public void operationComplete(F future) throws Exception {
if (future.isSuccess()) {
V result = future.get();
for (Promise p: promises) {
p.setSuccess(result);
}
return;
}
Throwable cause = future.cause();
for (Promise p: promises) {
p.setFailure(cause);
}
}
}