/**
* The contents of this file are subject to the OpenMRS Public License
* Version 1.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://license.openmrs.org
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
* License for the specific language governing rights and limitations
* under the License.
*
* Copyright (C) OpenMRS, LLC. All Rights Reserved.
*/
package org.openmrs.scheduler.tasks;
/**
* Implementation of a task that writes "Hello World" to a log file.
*
* @version 1.0
*/
public class HelloWorldTask extends AbstractTask {
// Thread
private Thread thread;
private boolean started;
/**
* Public constructor.
*/
public HelloWorldTask() {
thread = new Thread(new HelloWorldThread());
}
/**
* Illustrates stateless functionality as simply as possible. Not very useful in our system,
* except maybe as a polling thread that checks internet connectivity by opening a connection to
* an external URL. But even that isn't very useful unless it tells someone or something about
* the connectivity (i.e. calls another service method)
*/
public void execute() {
synchronized (thread) {
if(!started) {
thread.start();
started = true;
}
}
}
}