import org.globus.wsrf.container.ContainerException; //导入依赖的package包/类
/**
* Call this method if you want to subscribe and provide a NotifyCallback to handle the
* messages
*/
public org.oasis.wsn.SubscribeResponse subscribe(QName qname, NotifyCallback callback) throws RemoteException, ContainerException, MalformedURIException {
    synchronized (portTypeMutex) {
        configureStubSecurity((Stub) portType, "subscribe");

        if (consumer == null) {
            // Create client side notification consumer
            consumer = org.globus.wsrf.NotificationConsumerManager.getInstance();
            consumer.startListening();
            consumerEPR = consumer.createNotificationConsumer(callback);
        }

        org.oasis.wsn.Subscribe params = new org.oasis.wsn.Subscribe();
        params.setUseNotify(Boolean.TRUE);
        params.setConsumerReference(consumerEPR);
        org.oasis.wsn.TopicExpressionType topicExpression = new org.oasis.wsn.TopicExpressionType();
        topicExpression.setDialect(org.globus.wsrf.WSNConstants.SIMPLE_TOPIC_DIALECT);
        topicExpression.setValue(qname);
        params.setTopicExpression(topicExpression);
        return portType.subscribe(params);
   }
}
 

import org.globus.wsrf.container.ContainerException; //导入依赖的package包/类
/**
 * This method allows a client to subscribe to the WORKFLOWSTATUSELEMENT resource property of an 
 * executing workflow 
 * 
 * @param epr					Epr pointing the the WorkflowService resource ( on context service) that will handle a workflow execution.
 * @param TimeInSeconds			Time interval after which the subscription expires. 
 * @return
 * @throws MalformedURIException, RemoteException, ContainerException, InterruptedException
 */
public static void subscribeRP(EndpointReferenceType epr, int TimeInSeconds) throws MalformedURIException, 
RemoteException, ContainerException, InterruptedException
{
	CountDownLatch doneSignal = new CountDownLatch(1);
	TavernaWorkflowServiceImplClient serviceClient = new TavernaWorkflowServiceImplClient(epr, doneSignal, null);
	serviceClient.subscribe(TavernaWorkflowServiceImplConstantsBase.WORKFLOWSTATUSELEMENT);
	doneSignal.await(TimeInSeconds, TimeUnit.SECONDS);
}