org.apache.activemq.transport.tcp.ResponseHolder Maven / Gradle / Ivy
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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 org.apache.activemq.transport.tcp;
import org.apache.activemq.command.Response;
/**
* ResponseHolder utility
*/
public class ResponseHolder {
protected Response response;
protected Object lock = new Object();
protected boolean notified;
/**
* Construct a receipt holder
*/
public ResponseHolder() {
}
/**
* Set the Response for this holder
*
* @param r
* the response returned from the remote peer.
*/
public void setResponse(Response r) {
synchronized (lock) {
this.response = r;
notified = true;
lock.notify();
}
}
/**
* Get the Response
*
* @return the Response or null if it is closed
*/
public Response getResponse() {
return getResponse(0);
}
/**
* wait up to timeout timeout milliseconds to get a receipt
*
* @param timeout
* @return the Response that was set or null if none set yet.
*/
public Response getResponse(int timeout) {
synchronized (lock) {
if (!notified) {
try {
lock.wait(timeout);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
}
}
return this.response;
}
/**
* close this holder
*/
public void close() {
synchronized (lock) {
notified = true;
lock.notifyAll();
}
}
}