[news.eclipse.technology.ecf] Re: Communication between OSGi/Equinox - J

[se.schneider@xxxxxxx (Sebastian Schneider)]

Hi Scott,

thank you for your reply and this tip.

I implements the following code [1] and it seems to work but I get the 
error message [2] and I don't know how I send a message to the ActiveMQ 
and receive it again.

---- [1]
try {
 IContainer cont = 
ContainerFactory.getDefault().createContainer("ecf.jms.activemq.tcp.client");
 ID targetID = 
IDFactory.getDefault().createID(cont.getConnectNamespace(), 
"tcp://localhost:61616/mytest");
 cont.connect(targetID, null);
} catch (ContainerCreateException e) {
 e.printStackTrace();
} catch (IDCreateException e) {
 e.printStackTrace();
} catch (ContainerConnectException e) {
 e.printStackTrace();
}
---- [2]
log4j:WARN No appenders could be found for logger 
(org.activemq.transport.tcp.TcpTransportChannel).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN No appenders could be found for logger 
(org.activemq.ActiveMQConnection).
log4j:WARN Please initialize the log4j system properly.

org.eclipse.ecf.core.ContainerConnectException: JMS Connect or Setup 
Exception
	at 
org.eclipse.ecf.provider.jms.channel.AbstractJMSClientChannel.connect(AbstractJMSClientChannel.java:69)
	at 
org.eclipse.ecf.provider.generic.ClientSOContainer.connect(ClientSOContainer.java:146)
	at com.javaworld.sample.helloworld.Activator.start(Activator.java:51)
	at 
org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(BundleContextImpl.java:999)
	at java.security.AccessController.doPrivileged(Native Method)
	at 
org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:993)
	at 
org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:974)
	at 
org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:346)
	at 
org.eclipse.osgi.framework.internal.core.AbstractBundle.resume(AbstractBundle.java:350)
	at 
org.eclipse.osgi.framework.internal.core.Framework.resumeBundle(Framework.java:1118)
	at 
org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:634)
	at 
org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:508)
	at 
org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:282)
	at 
org.eclipse.osgi.framework.internal.core.StartLevelManager.dispatchEvent(StartLevelManager.java:468)
	at 
org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:195)
	at 
org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:297)
org.eclipse.ecf.core.ContainerConnectException[0]: javax.jms.JMSException: 
syncSendTimedOut: connection no longer OK
	at 
org.activemq.ActiveMQConnection.syncSendPacket(ActiveMQConnection.java:1336)
	at 
org.activemq.ActiveMQConnection.syncSendPacket(ActiveMQConnection.java:1306)
	at org.activemq.ActiveMQSession.addConsumer(ActiveMQSession.java:1208)
	at 
org.activemq.ActiveMQMessageConsumer.<init>(ActiveMQMessageConsumer.java:143)
	at org.activemq.ActiveMQSession.createConsumer(ActiveMQSession.java:622)
	at org.eclipse.ecf.provider.jms.channel.JmsTopic.<init>(JmsTopic.java:31)
	at 
org.eclipse.ecf.provider.jms.channel.AbstractJMSChannel.setupJMS(AbstractJMSChannel.java:175)
	at 
org.eclipse.ecf.provider.jms.channel.AbstractJMSClientChannel.connect(AbstractJMSClientChannel.java:63)
	at 
org.eclipse.ecf.provider.generic.ClientSOContainer.connect(ClientSOContainer.java:146)
	at com.javaworld.sample.helloworld.Activator.start(Activator.java:51)
	at 
org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(BundleContextImpl.java:999)
	at java.security.AccessController.doPrivileged(Native Method)
	at 
org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:993)
	at 
org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:974)
	at 
org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:346)
	at 
org.eclipse.osgi.framework.internal.core.AbstractBundle.resume(AbstractBundle.java:350)
	at 
org.eclipse.osgi.framework.internal.core.Framework.resumeBundle(Framework.java:1118)
	at 
org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:634)
	at 
org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:508)
	at 
org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:282)
	at 
org.eclipse.osgi.framework.internal.core.StartLevelManager.dispatchEvent(StartLevelManager.java:468)
	at 
org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:195)
	at 
org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:297)
----

I need really a simple example. I have too little know-how.

Scott Lewis wrote:

> In my own copy of the org.eclipse.ecf.provider.jms.activemq bundle I 
> have the various jars referenced on the bundle classpath inside the lib 
> directory.  Are these not present for you inside your project?  I 
> checked on the CVS repository and they also seem to be there.

> I'm not sure what is the problem you identify above (i.e. why the 
> activemq jars are not included).

> As for the analog of what you have above within ECF...the parts dealing 
> strictly with JMS (i.e. not specific to ActiveMQ) are in:

> org.eclipse.ecf.provider.jms.channel.AbstractJMSClientChannel

> which is in the org.eclipse.ecf.provider.jms bundle

> and the JMS-specific bits are in the sub-class

>
org.eclipse.ecf.provider.jms.activemq.container.ActiveMQJMSClientContainer.ActiveMQClientChannel

> (which is an inner class inside ActiveMQJMSClientContainer) inside the 
> org.eclipse.ecf.provider.jms.activemq bundle.

I forgot to import the other packages of ecf (CVS).

> The intention here is to separate the active-mq-specific stuff from the 
> JMS-generic stuff for session/topic setup, so that it is relatively easy 
> to create other providers based upon other JMS implementers.  So, for 
> example, we have a Webshere JMS impl that is also based upon 
> org.eclipse.ecf.provider.jms.  We would, of course, welcome other JMS 
> impls and if they want to use/reuse the org.eclipse.ecf.provider.jms to 
> create them that that is great.

I didn't found this example of WebSphere. Where is it?

Thanks.

Best regards,
Sebastian