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Posted to muse-user@ws.apache.org by Agustin1984 <ja...@hotmail.com> on 2010/06/17 13:21:23 UTC

Re: SV: Send NotificationEvent from additional Axis2 WS

My situation is this:
I have:
- a producer1 that produce an event each 10 seconds (as the samples provided
by muse)
- a consumer1 subscribed to producer 1
- a producer2 
-  many consumers subscribed to producer2

The following in my scenario:

when consumer1 receive message from producer1, it must publish this event to
consumers subscribed to producer2, how can I call publish method on
producer2 from consumer1?

Producer1--(notifyEvent)--->Consumer1--(receive message and publish this
message on producer2)





Makla wrote:
> 
> Thanks a lot! I owe you one. Now I understand how things work out in
> muse..i even consider writing a tutorial about this - since there doesnt
> seem to be too many out there.
> 
> Makla
> 
> 
> Lenni Madsen wrote:
>> 
>> The sample is just a sample that for the sake of the sample continues to
>> produce messages at a given interval. In short it's a proof of concept
>> that
>> the messages can be sent and received.
>> 
>> Now if we want to do something a bit more advanced to for example to have
>> a
>> central NotificationProducer that all the other WSRF compliant services
>> can
>> call, this might be a way:
>> 
>> package org.extended.test;
>> 
>> import javax.xml.namespace.QName;
>> 
>> import org.apache.muse.core.Resource;
>> import org.apache.muse.core.ResourceManager;
>> import org.apache.muse.util.xml.XmlUtils;
>> import org.apache.muse.ws.addressing.EndpointReference;
>> import org.apache.muse.ws.addressing.soap.SoapFault;
>> import org.apache.muse.ws.dm.muws.events.Component;
>> import org.apache.muse.ws.dm.muws.events.ComponentAddress;
>> import org.apache.muse.ws.dm.muws.events.ManagementEvent;
>> import org.apache.muse.ws.dm.muws.events.Situation;
>> import org.apache.muse.ws.dm.muws.events.WefConstants;
>> import org.apache.muse.ws.dm.muws.events.WefFactory;
>> import org.apache.muse.ws.dm.muws.events.impl.SimpleWefFactory;
>> import org.apache.muse.ws.dm.muws.impl.AbstractManageabilityCapability;
>> import org.apache.muse.ws.notification.NotificationProducer;
>> import org.apache.muse.ws.notification.WsnConstants;
>> import org.w3c.dom.Element;
>> 
>> public class MyCapability extends AbstractManageabilityCapability
>> implements
>> IMyCapability
>> {
>> 	
>> 	private static final QName _TOPIC_NAME = new QName(NAMESPACE_URI,
>> "RuntimeEvent", PREFIX);
>> 	private WefFactory factory;
>> 	private ManagementEvent event;
>> 	private NotificationProducer runtimeNotification;
>> 	
>>     /**
>> 	 * Only internal objects are guaranteed to be instantiated, do not
>> depend on objects/Capabilities outside this Capability
>> 	 */
>> 	public void initialize() throws SoapFault {
>> 		super.initialize();
>> 		Element[] elements =
>> getResource().getEndpointReference().getParameters();
>> 		System.out.println("Element Length: "+elements.length);
>> 		for(int i = 0; i < elements.length; i++){
>> 			System.out.println("Override initialization() for
>> "+elements[i].getFirstChild().getNodeValue());
>> 		}
>> 		_ServerName = "Extended";
>> 	}
>> 	/**
>> 	 * External capabilities are instantiated and can be used
>> 	 */
>> 	public void initializeCompleted() throws SoapFault {
>> 		super.initializeCompleted();
>> 		Element[] elements =
>> getResource().getEndpointReference().getParameters();
>> 		for(int i = 0; i < elements.length; i++){
>> 			System.out.println("Override
>> initializationCompleted() for
>> "+elements[i].getFirstChild().getNodeValue());
>> 		}
>> 		runtimeNotification =
>> (NotificationProducer)getResource().getCapability(WsnConstants.PRODUCER_URI)
>> ;
>> 		// add list of Topics if needed
>> 		runtimeNotification.addTopic(_TOPIC_NAME);	
>> 	}
>> 	/**
>> 	 * External capabilities are instantiated and can be used (last
>> chance)
>> 	 */
>> 	public void prepareShutdown() throws SoapFault{
>> 		super.prepareShutdown();
>> 		Element[] elements =
>> getResource().getEndpointReference().getParameters();
>> 		for(int i = 0; i < elements.length; i++){
>> 			System.out.println("Override prepareShutdown() for
>> "+elements[i].getFirstChild().getNodeValue());
>> 		}
>> 	}
>> 	/**
>> 	 * Only internal objects are guarentied to be instantiated, do not
>> depend on objects/Capabilities outside this Capability
>> 	 */
>> 	public void shutdown() throws SoapFault{
>> 		super.shutdown();
>> 		Element[] elements =
>> getResource().getEndpointReference().getParameters();		
>> 		for(int i = 0; i < elements.length; i++){
>> 			System.out.println("Override shutown() for
>> "+elements[i].getFirstChild().getNodeValue());
>> 		}
>> 	}
>> 	
>>      private String[] _TestProperty;
>> 
>>      public String[] getTestProperty()
>>      {
>>          return _TestProperty;
>>      }
>> 
>>      public void setTestProperty(String[] param0)
>>      {
>>          _TestProperty = param0;
>>      }
>>     
>> 	public Element runtimeEventOperation(){
>> //		WefFactory();
>> 		Element toPublish = MemoryFree();
>> 		try{
>> 			getLog().info("Sending message to consumers...");
>> 			
>> 			runtimeNotification.publish(_PDP_TOPIC_NAME,
>> toPublish);
>> //			runtimeNotification.publish(_PDP_TOPIC_NAME, event);
>> 		}catch (Throwable error){
>> 			error.printStackTrace();
>> 		}
>> //    	return event.toXML();
>> 		return toPublish;
>>     }
>>     
>> 	private Element MemoryFree(){
>> 		Element ExtendedElement = XmlUtils.createElement(
>> 				new QName(
>> 						"someURI",
>> 						"SomeName",
>> 						"Some"
>> 						), 
>> 					30.56
>> 				);
>> 		return ExtendedElement;
>> 	}
>> 	
>> private void WefFactory(){
>>     	
>>     	factory = new SimpleWefFactory();
>>     	event = factory.createEvent(); 
>>     	
>>     	Component reporter = factory.createComponent();
>>     	ComponentAddress reporterAddress =
>> factory.createComponentAddress(getResource().getEndpointReference().toXML())
>> ;
>>     	reporter.setAddress(reporterAddress);
>>     	reporter.setName(WefConstants.REPORTER_COMP_QNAME);
>>     	System.out.println("reporterAddress:
>> "+XmlUtils.toString(getResource().getEndpointReference().toXML()));
>>     	Component source = factory.createComponent();
>>     	ComponentAddress sourceAddress =
>> factory.createComponentAddress(getResource().getEndpointReference().toXML())
>> ;
>>     	source.setAddress(sourceAddress);
>>     	source.setName(WefConstants.SOURCE_COMP_QNAME);
>>     	System.out.println("sourceAddress:
>> "+XmlUtils.toString(getResource().getEndpointReference().toXML()));
>>     	
>>     	Situation situation = factory.createSituation();
>>  
>> situation.setCategoryType(WefConstants.AVAILABILITY_SITUATION_QNAME);
>>     	situation.setPriority(Situation.HIGH_PRIORITY);
>>     	situation.setSeverity(Situation.UNKNOWN_SEVERITY);
>>     	situation.setMessage("Something important has happened in the
>> "+getServerName()+"!");
>>     	event.setReporter(reporter);
>>     	event.setSource(source);
>>     	event.setSituation(situation);
>>     	event.addExtendedElement(
>>     			new QName("SomeURI",
>>     					"SomeName", "tns"), 30.56);
>> //    	event.addExtendedElement(Element xml);
>>     }
>>      
>>     private static final QName[] _PROPERTIES = new QName[]
>>     {
>>         new QName(NAMESPACE_URI, "ServerName", PREFIX),
>>         new QName(NAMESPACE_URI, "MessageInterval", PREFIX),
>>         new QName(NAMESPACE_URI, "TestProperty", PREFIX)
>>     };
>> 
>>     public QName[] getPropertyNames()
>>     {
>>         return _PROPERTIES;
>>     }
>>     
>>     private String _ServerName = "WsExtended";
>>     private int _MessageInterval = 0;
>> 
>>     public String getServerName()
>>     {
>>         return _ServerName;
>>     }
>> 
>>     public void setServerName(String param0)
>>     {
>>         _ServerName = param0;
>>     }
>> 
>>     public int getMessageInterval()
>>     {
>>         return _MessageInterval;
>>     }
>> 
>>     public void setMessageInterval(int param0)
>>     {
>>         _MessageInterval = param0;
>>     }
>>     
>> } 
>> 
>> Please note the code is not complete as it's sampled from a work in
>> progress, though it does contain a working NotificationProducer that
>> allows
>> for other WSRF services to use it.
>> 
>> I didn't add the needed WSDL-file as I assumed you knew how to generate
>> those and declare any needed public available functions (in this case
>> runtimeEventOperation ).
>> 
>> /Lenni
>> 
>> "Cake is not a dual-use food stuff"
>> -----Oprindelig meddelelse-----
>> Fra: Makla [mailto:dennisfr1986@yahoo.de] 
>> Sendt: 29. oktober 2008 12:04
>> Til: muse-user@ws.apache.org
>> Emne: Send NotificationEvent from additional Axis2 WS
>> 
>> 
>> Hello, 
>> 
>> i have the following situation. A J2me client shall be able to notify a
>> NotificationProducerWS with certain events. 
>> The NotificationProducer then publishes the event to all subscribed
>> listeners. 
>> In the WSN Consumer/Producer sample, there is only a producer publishing
>> events every 10secs to its subscribers, no matter whether anything has
>> happened or not. 
>> But I want a second (non-emuse) WS sending an event (incl. some data as
>> for
>> instance a float value) to the producing notification WS. The producer
>> then
>> pushes the notification message to the listeners.The
>> subscription/publication is no problem. 
>> I was considering adding a method in the WSN-Producer implementation
>> (MyCapabilityImpl) that hands over the data and sets a flag for
>> publication.
>> But how may i do this? and how may i access the Muse WS from outside and
>> invoke a method in it?
>> 
>> any help is much appreciated (urgent) 
>> -- 
>> View this message in context:
>> http://www.nabble.com/Send-NotificationEvent-from-additional-Axis2-WS-tp2022
>> 4782p20224782.html
>> Sent from the Muse User mailing list archive at Nabble.com.
>> 
>> 
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>> 
>> 
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>> 
>> 
> 
> 

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