Using WorkManager in JBoss

You can schedule any work (thread that needs to be run) in Jboss using WorkManager API (JCA).
Below is a sample code that can be called from any ejb/servlet/mdb or any server side application running in jboss container.
Context jndiContext = new InitialContext();
MBeanServerConnection mconn = (MBeanServerConnection) jndiContext.lookup( “jmx/invoker/RMIAdaptor”);
ObjectName objectName = new ObjectName(“jboss.jca:service=WorkManager”);
JBossWorkManagerMBean jwm = (JBossWorkManagerMBean) MBeanServerInvocationHandler.newProxyInstance(mconn,objectName,
JBossWorkManagerMBean.class,false);
WorkManager workmanager = jwm.getInstance();
Work work = new WorkImpl();
WorkListener listener = new WorkListenerImpl();
System.out.println(” Scheduling some work”);
workmanager.scheduleWork(work,1000,new ExecutionContext(),listener);
System.out.println(“MDB:: Scheduled some Work”);

//Sample code for WorkListenerImpl
class WorkListenerImpl implements WorkListener
{
public void workAccepted(WorkEvent workEvent) {
System.out.println(“WorkListener:: work accepted by container”);
}

public void workRejected(WorkEvent workEvent) {
System.out.println(“WorkListener:: work rejected by container”);
}

public void workStarted(WorkEvent workEvent) {
System.out.println(“WorkListener:: work started by container”);
}

public void workCompleted(WorkEvent workEvent) {
System.out.println(“WorkListener:: work completed by container”);
}
}

//Sample code for WorkImpl
public class WorkImpl implements Work, Serializable
{
public void release()
{
System.out.println(“Work:: Somebody want to kill me. I am releasing resources.”);
}

public void run()
{
System.out.println(“Work:: I am here for some work”);
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println(“Work:: Work finished”);

}
}

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