/**
* 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.jca.cxf;
import javax.resource.spi.work.Work;
import javax.resource.spi.work.WorkEvent;
import javax.resource.spi.work.WorkException;
import javax.resource.spi.work.WorkManager;
import org.eclipse.jetty.util.thread.ThreadPool;
/**
* The adapter for using Application Server's thread pool.
* Just simply override the dispatch method.
*/
public class WorkManagerThreadPool extends CXFWorkAdapter implements ThreadPool {
private WorkManager workManager;
private boolean isLowOnThreads;
private Runnable theJob;
public WorkManagerThreadPool(WorkManager wm) {
this.workManager = wm;
}
public boolean dispatch(Runnable job) {
try {
theJob = job;
workManager.startWork(new WorkImpl(job), DEFAULT_START_TIME_OUT, null, this);
return true;
} catch (WorkException e) {
e.printStackTrace();
return false;
}
}
public int getIdleThreads() {
return 0;
}
public int getThreads() {
return 1;
}
public boolean isLowOnThreads() {
return isLowOnThreads;
}
void setIsLowOnThreads(boolean isLow) {
this.isLowOnThreads = isLow;
}
public void join() throws InterruptedException {
//Do nothing
}
public class WorkImpl implements Work {
private Runnable job;
public WorkImpl(Runnable job) {
this.job = job;
}
public void run() {
job.run();
}
public void release() {
//empty
}
}
@Override
public void workRejected(WorkEvent e) {
super.workRejected(e);
WorkException we = e.getException();
if (WorkException.START_TIMED_OUT.equals(we.getErrorCode()) && !isLowOnThreads) {
setIsLowOnThreads(true);
dispatch(theJob);
}
}
public void execute(Runnable command) {
dispatch(command);
}
}