Thank you for this instruction - i wanted to clear a couple of things up if
that is ok.
I have question mainly on ActiveMQBroker.java class. Is this a standalone
class? does it inherite from any class? Do i need to follow a specific
interface?
Do you have a complete example that you can share?
Let's say that I am getting a SOAP request, and I want to simply forward
that, how does I specify the topic? There seems to be 2 topics that you
mention here, but how do i choose from one of these two or maybe many others
that I may want to publish to?
for example: I get 10 SOAP requests, message1 goes to topic1, message2 to
topic2, etc... Where can i embed this logic?
Thanks
Art
Suchitha Koneru (sukoneru) wrote:
>
> In our application , there are two web apps and the inter web app
> communication is via the active mq broker. Out application uses active
> mq 4.1.1 , java 1.6 and Tomcat5.5.20
>
> 1) The jndi resources for active mq can be specified in
> Tomcat/conf/context.xml
>
> <!-- active mq connection factory -->
> <Resource
> name="jms/ConnectionFactory"
> auth="Container"
> type="org.apache.activemq.ActiveMQConnectionFactory"
> description="JMS Connection Factory"
> factory="org.apache.activemq.jndi.JNDIReferenceFactory"
>
>
> brokerURL="tcp://ipaddress:61616?trace=true&wireFormat.maxInactivityDura
> tion=-1"
> />
>
>
> the flag wireFormat.maxInactivityDuration should be set to -1 because
> , if there is no activity (exchange os messages via the broker for some
> period of Time) , the broker automatically closes down the connection.
>
>
>
> <!-- topics -->
>
>
> <Resource name="jms/TopicOne"
> auth="Container"
> type="org.apache.activemq.command.ActiveMQTopic"
> description="the topic against which the client back
> end will publish and server back end would subscribe"
>
> factory="org.apache.activemq.jndi.JNDIReferenceFactory"
> physicalName="FOO1.BAR"/>
>
>
> <Resource name="jms/TopicTwo"
> auth="Container"
> type="org.apache.activemq.command.ActiveMQTopic"
> description="the topic against which the server back
> end will publish and client back end would subscribe"
>
> factory="org.apache.activemq.jndi.JNDIReferenceFactory"
> physicalName="FOO2.BAR"/>
>
> 2) I have used broker configuration URI for the broker. The alternative
> approache is using an activemq.xml file . If you use active.xml file ,
> the broker url would be
> brokerURL="tcp://localhost?brokerConfig=xbean:file:../../activemq.xml ,
> provide the relative path to the activemq.xml file , starting from the
> bin directory of Tomcat. I am assuming that you are using "startup.bat"
> present in the bin directory to start the tomcat server.
>
>
> The pseudo code for starting the broker is
>
> BrokerService broker = new BrokerService();
> // the connector should have the same contents as the broker url
>
> broker.addConnector("tcp://ipaddress:61616?trace=true&wireFormat.maxInac
> tivityDuration=-1");
>
> broker.start();
>
> 3) You can place the code for starting the broker in a singleton class .
> The Constructor of the singleTonClass should create the broker. There
> should also be a synchronized method for shutting down the broker.
> For reference let us call this class as ActiveMQBroker.java .Place this
> class under shared/classes folder and also place , the active mq jars
> in shared/lib;
>
> When your web app needs to communicate with the broker, it will Create
> an instance of single Ton class ActiveMQBroker . The pseudo code to be
> placed in web apps to connect to the broker is
>
>
> SingleTonClass.getInstance();
> Ictx = new javax.naming.InitialContext();
> envContext = (Context)
> Ictx.lookup("java:comp/env");
> TopicConnectionFactory topicfactory
> =(TopicConnectionFactory) conContext.lookup("jms/ConnectionFactory");
>
> TopicConnection tConnection = topicfactory.createTopicConnection();
>
> // create session
>
> ActiveMQSession topicSession = (ActiveMQSession )
> HConn.createSession(false, Session.AUTO_ACKNOWLEDGE);
>
> // create Topic
> Topic topic = (Topic)envContext.lookup(jms/TopicTwo);
>
>
> // create either a publisher or subscriber
>
> topicSession.createSubscriber(topic);
>
> //In case of the subscriber , please implement the MessageListner
> Interface ()
>
>
> 4) You can also connect to the broker without using jndi resources.
>
>
> Also these urls would be useful.
> http://activemq.apache.org/how-do-i-embed-a-broker-inside-a-connection.h
> tml
>
> http://activemq.apache.org/broker-configuration-uri.html
>
> http://fabien.carrion.free.fr/tomcat/jndi-jms-examples-howto.xml
>
> http://activemq.apache.org/setting-up-activemq-with-tomcat-559.html
>
> Thanks,
> Suchitha.
>
>
>
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>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, August 01, 2007 2:08 AM
> To: Suchitha Koneru (sukoneru)
> Subject: Need help regarding ActiveMQ with Tomcat
>
> Hi,
>
> Hope you are doing fine. Let me introduce myself first I am Shubhendu
> Kumar Paul working on Java Platfrom. In my current project I am using
> ActiveMQ, and able to run a simple console based application but when I
> tried to implement the same at Tomcat 5.5, I am unable to configure it.
> At ActiveMQ forum I saw your message, if you don't have any problem,
> could you please tell me every configuration step by step or suggest me
> from where I can found any sample web based active mq application? Or if
> you have a small web based ActiveMQ Hello World! kind of application
> could you please send it to me?
>
> Thanks in Advance.
>
> Regards,
> Shubhendu Kumar Paul
> e-mail: [EMAIL PROTECTED]
>
>
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