/**
* 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.cxf.systest.jms.continuations;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.Executor;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import javax.annotation.Resource;
import javax.jws.WebService;
import javax.xml.ws.WebServiceContext;
import org.apache.cxf.continuations.Continuation;
import org.apache.cxf.continuations.ContinuationProvider;
@WebService(name = "HelloContinuation",
serviceName = "HelloContinuationService",
portName = "HelloContinuationPort",
targetNamespace = "http://cxf.apache.org/systest/jaxws",
endpointInterface = "org.apache.cxf.systest.jms.continuations.HelloContinuation",
wsdlLocation = "org/apache/cxf/systest/jms/continuations/test.wsdl")
public class HelloWorldWithContinuationsJMS implements HelloContinuation {
private Map<String, Continuation> suspended =
new HashMap<String, Continuation>();
private Executor executor = new ThreadPoolExecutor(5, 5, 0, TimeUnit.SECONDS,
new ArrayBlockingQueue<Runnable>(10));
@Resource
private WebServiceContext context;
public String sayHi(String firstName, String secondName) {
Continuation continuation = getContinuation(firstName);
if (continuation == null) {
throw new RuntimeException("Failed to get continuation");
}
synchronized (continuation) {
if (continuation.isNew()) {
Object userObject = secondName != null && secondName.length() > 0
? secondName : null;
continuation.setObject(userObject);
suspendInvocation(firstName, continuation);
} else {
if (!continuation.isResumed()) {
throw new RuntimeException("No timeout expected");
}
StringBuilder sb = new StringBuilder();
sb.append(firstName);
// if the actual parameter is not null
if (secondName != null && secondName.length() > 0) {
String surname = continuation.getObject().toString();
sb.append(' ').append(surname);
}
//System.out.println("Saying hi to " + sb.toString());
return "Hi " + sb.toString();
}
}
// unreachable
return null;
}
public boolean isRequestSuspended(String name) {
synchronized (suspended) {
while (!suspended.containsKey(name)) {
try {
suspended.wait(1000);
} catch (InterruptedException ex) {
return false;
}
}
}
//System.out.println("Invocation for " + name + " has been suspended");
return true;
}
public void resumeRequest(final String name) {
Continuation suspendedCont = null;
synchronized (suspended) {
suspendedCont = suspended.get(name);
}
if (suspendedCont != null) {
synchronized (suspendedCont) {
suspendedCont.resume();
}
}
}
private void suspendInvocation(final String name, Continuation cont) {
//System.out.println("Suspending invocation for " + name);
try {
cont.suspend(500000);
} finally {
synchronized (suspended) {
suspended.put(name, cont);
}
executor.execute(new Runnable() {
public void run() {
try {
Thread.sleep(2000);
} catch (InterruptedException ex) {
// ignore
}
resumeRequest(name);
}
});
}
}
private Continuation getContinuation(String name) {
//System.out.println("Getting continuation for " + name);
synchronized (suspended) {
Continuation suspendedCont = suspended.remove(name);
if (suspendedCont != null) {
return suspendedCont;
}
}
ContinuationProvider provider =
(ContinuationProvider)context.getMessageContext().get(ContinuationProvider.class.getName());
return provider.getContinuation();
}
}