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Subject: RE: active mq and tomcat 5.5
Date: Fri, 19 Jan 2007 11:36:42 -0800
Message-ID: 
 <5BD9FA70F5EDAC43AB816A5FDE30F6AC0374259B@xmb-sjc-21a.amer.cisco.com>
In-Reply-To: <45B117CA.1060702@exist.com>
Thread-Topic: active mq and tomcat 5.5
Thread-Index: Acc7/ad4/bLxTQhkTbGU2cYCZ/eOqgAAo/mA
From: "Suchitha Koneru \(sukoneru\)" <sukoneru@cisco.com>
To: <activemq-users@geronimo.apache.org>

Thanks for your response , I tried using the latest version of activemq
jars (i.e 4.1)
The class of the object being returned=20
Is=20
org.apache.activemq.ActiveMQConnectionFactory.
I tried casting it to this type as well, but still I get the class cast
exception=20

java.lang.ClassCastException:
org.apache.activemq.ActiveMQConnectionFactory
        at
com.cpnm.common.messaging.PNMSubscriber.<init>(PNMSubscriber.java:45)

I am not sure , as to what is going worng.=20


-----Original Message-----
From: Adrian Co [mailto:aco@exist.com]=20
Sent: Friday, January 19, 2007 11:11 AM
To: activemq-users@geronimo.apache.org
Subject: Re: active mq and tomcat 5.5

Have you tried using the 4.1 jars?

What is the class of the object being returned?

Suchitha Koneru (sukoneru) wrote:
> Hello active mq users ,
>
> is there any good tutorial, which will explain configuring active mq=20
> on tomcat 5.5 ? I am running into the following issue.
>
> I have the following configuration on my system
>
> tomcat 5.5
>
> java 1.5.09
>
> activemq jars version 4.0
>
> The active MQ broker is started  , from the application .=20
>
> the code for it is
>
> public void contextInitialized(ServletContextEvent arg0) {
>
> try{
>
> System.out.println("Starting ActiveMQ Broker Service...");
>
> broker.addConnector("tcp://localhost:61616?trace=3Dtrue");
>
> broker.start();
>
> System.out.println("Active MQ Broker Started at local host port=20
> 61616");
>
> }catch(Exception e){
>
> System.err.println(e.getMessage());
>
> e.printStackTrace();
>
> throw new RuntimeException(e);
>
> }
>
> }
>
> =20
>
> In server.xml , I placed the JNDI resources as follows=20
> <GlobalNamingResources>
>
> <Resource name=3D"jms/TopicConnectionFactory"=20
>
> auth=3D"Container"=20
>
> type=3D"org.apache.activemq.ActiveMQConnectionFactory"=20
>
> description=3D"JMS Connection Factory"
>
> factory=3D"org.apache.activemq.jndi.JNDIReferenceFactory"=20
>
> brokerURL=3D"tcp://localhost:61716"=20
>
> brokerName=3D"LocalActiveMQBroker"/>
>
> <Resource name=3D"jms/Topic"=20
>
> auth=3D"Container"=20
>
> type=3D"org.apache.activemq.command.ActiveMQTopic"=20
>
> description=3D"sample Topic"
>
> factory=3D"org.apache.activemq.jndi.JNDIReferenceFactory"=20
>
> physicalName=3D"FOO.BAR"/>
>
> </GlobalNamingResources>
>
> I have a web app called UI , I am trying to access these global jndi=20
> recources from this web app, Hence the context.xml for this web app=20
> has the following
>
> <Context reloadable=3D"true">
>
> <ResourceLink
> name=3D"ConnectionFactory"global=3D"jms/TopicConnectionFactory" =
type=3D=20
> "org.apache.activemq.ActiveMQConnectionFactory" />
>
> <ResourceLink name=3D"PNMTopic" global=3D"jms/Topic" type=3D=20
> "org.apache.activemq.command.ActiveMQTopic" />
>
> </Context>
>
> The subsciber class in the UI context is as follows
>
> public class PNMSubscriber {
>
> TopicConnection tConn ;
>
> TopicConnectionFactory tFactory ;
>
> Topic pnmTopic;
>
> ActiveMQTopicSession pnmSession ;
>
> public PNMSubscriber(){
>
> try{
>
> InitialContext initialContext =3D new InitialContext();
>
> Context envContext =3D (Context) =
initialContext.lookup("java:comp/env");
>
> tFactory
> =3D(TopicConnectionFactory)envContext.lookup("ConnectionFactory");
>
> tConn =3D tFactory.createTopicConnection();
>
> pnmSession =3D (ActiveMQTopicSession) tConn.createTopicSession(true,=20
> Session.AUTO_ACKNOWLEDGE);
>
> pnmTopic =3D (Topic)envContext.lookup("PNMTopic");
>
> pnmSubscriber =3D pnmSession.createSubscriber(pnmTopic);
>
> }catch(Exception e){
>
> e.printStackTrace();
>
> }
>
> }
>
> I get a class cast exception as follows
>
> java.lang.ClassCastException:
> org.apache.activemq.ActiveMQConnectionFactory
>
> at
> com.cpnm.common.messaging.PNMSubscriber.<init>(PNMSubscriber.java:40)
>
> The exception is raised , at the following line , in the code above.
>
> tFactory =3D
> (TopicConnectionFactory)envContext.lookup("ConnectionFactory");
>
> I tried casting the object to "ActiveMQConnectionFactory" , I still=20
> get the same exception.
>
> I think, Iam missing something in the configuration, please let me=20
> know, if I need to add anything else.
>
> thank you,
>
> Suchitha.
>
>
>  =20