Examples of org.apache.muse.ws.notification.NotificationProducer

org.apache.muse.ws.notification.NotificationProducer

NotificationProducer is an interface that represents the WS-Notification NotificationProducer port type; it is based on WS-N 1.3. It provides support for the NotificationProducer properties (all topic-related) as well as its two operations: GetCurrentMessage and Subscribe. It also has methods for managing the resource's topic set using Muse's {@linkplain Topic Topic API}.

Perhaps the most significant API for users of WS-N is the publish() method; this method allows users to send message content to subscribers without having to know anything about the maintenance of subscriptions and how to determine which messages are sent to which subscribers. The publish() method allows user code to focus on generating event content and then let the WS-N implementation determine how and where to put it on the wire. @author Dan Jemiolo (danj)

        super.initializeCompleted();
        
        //
        // access resource's WSN capability and create a new topic
        //
        final NotificationProducer wsn = (NotificationProducer)getResource().getCapability(WsnConstants.PRODUCER_URI);
        wsn.addTopic(_TOPIC_NAME);


        Thread producer = new Thread() {
            public void run()
            {
                //
                // for this example, reuse one payload for every notification
                //
                QName messageName = new QName(NAMESPACE_URI, "MyMessage", PREFIX);
                String message = "This is a message from " + getServerName();
                Element payload = XmlUtils.createElement(messageName, message);
                
                while (true)
                {
                    try
                    {
                        //
                        // read current value - property is mutable
                        //
                        int currentInterval = getMessageInterval();
                        
                        getLog().info("Waiting " + currentInterval + " seconds before sending message...");
                        Thread.currentThread().sleep(currentInterval * 1000);
                        
                        //
                        // use WSN capability to send message to any subscribers
                        //
                        getLog().info("Sending message to consumers...");
                        wsn.publish(_TOPIC_NAME, payload);
                    }


                    catch (Throwable error)
                    {
                        error.printStackTrace();

Examples of org.apache.muse.ws.notification.NotificationProducer

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