Thank you so much for the help. I am looking up the correct name because in the resource link of context.xml I have Connection Factory mapped to global resource "jms/TopicConnectionFactory". This global resource is mentioned in Server.xml.
<ResourceLink name="ConnectionFactory" > global="jms/TopicConnectionFactory" type= > "org.apache.activemq.ActiveMQConnectionFactory" /> The object at run time is Of the type org.apache.activemq.ActiveMQConnectionFactory. Using JNDI , I am able to look up the connection factory and the topic. The problem is with the type of object being returned, even though it is of type org.apache.activemq.ActiveMQConnectionFactory , I cannot cast it to the same type i.e. org.apache.activemq.ActiveMQConnectionFactory This problem appears to be very tricky. -----Original Message----- From: James Strachan [mailto:[EMAIL PROTECTED] Sent: Friday, January 19, 2007 1:10 AM To: activemq-users@geronimo.apache.org Subject: Re: active mq configuration for Tomcat 5.5 It looks like you are looking up the wrong name, shouldn't it be "jms/TopicConnectionFactory"? Also try actually printing out what the object is that you've found. Given the problems you're having using JNDI, it might be worth just replacing all the JNDI crap with just one line... ConnectionFactory factory = new ActiveMQConnection() :) On 1/19/07, Suchitha Koneru (sukoneru) <[EMAIL PROTECTED]> wrote: > Hello active mq users , > I have the following configuration on my system > tomcat 5.5 java 1.5.09 > > In server.xml , I placed the JNDI resources as follows > <GlobalNamingResources> > > <Resource name="jms/TopicConnectionFactory" > > auth="Container" > > type="org.apache.activemq.ActiveMQConnectionFactory" > > description="JMS Connection Factory" > > factory="org.apache.activemq.jndi.JNDIReferenceFactory" > > brokerURL="tcp://localhost:61716" > > brokerName="LocalActiveMQBroker"/> > > <Resource name="jms/Topic" > > auth="Container" > > type="org.apache.activemq.command.ActiveMQTopic" > > description="sample Topic" > > factory="org.apache.activemq.jndi.JNDIReferenceFactory" > > physicalName="FOO.BAR"/> > > </GlobalNamingResources> > > I have a web app called UI , I am trying to access these global jndi > recources from this web app, Hence the context.xml for this web app > has the following <Context reloadable="true"> > > <ResourceLink name="ConnectionFactory" > global="jms/TopicConnectionFactory" type= > "org.apache.activemq.ActiveMQConnectionFactory" /> > > <ResourceLink name="PNMTopic" global="jms/Topic" type= > "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 = new InitialContext(); > > Context envContext = (Context) initialContext.lookup("java:comp/env"); > > tFactory = > (TopicConnectionFactory)envContext.lookup("ConnectionFactory"); > > tConn = tFactory.createTopicConnection(); > > pnmSession = (ActiveMQTopicSession) tConn.createTopicSession(true, > Session.AUTO_ACKNOWLEDGE); > > pnmTopic = (Topic)envContext.lookup("PNMTopic"); > > pnmSubscriber = 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 > > tFactory = > (TopicConnectionFactory)envContext.lookup("ConnectionFactory"); > > I tried casting the object to "ActiveMQConnectionFactory" , I still > get the same exception. > > I think, iam missing something in the configuration, please let me > know, if I need to add anything else. > > Please help me out !! > > thank you, > > Suchitha. > > > > > > > -- James ------- http://radio.weblogs.com/0112098/
