New test done ! I have put this code into my first project.
If i try to create a Connection, a Session and a Consumer there is no
problem at all.
But if i create a QueueConnection, a QueueSession and a QueueReceiver i got
the "error".
the QueueConnection is corretly create but the QueueSession not.
What is the difference between Connection and QueueConnection ?
What is the difference between Consumer and QueueReceiver ?
thanks in advance,
Regards,
Denez
denez wrote:
>
> Here is my new investigation :
> I create a new project!
> I only implement one class which implements ServletContextListener and
> MessageListener, and wrote this so simple code :
>
> public class ActiveMQBrokerStartListener implements
> ServletContextListener, MessageListener {
> BrokerService broker = new BrokerService();
> private String url="tcp://localhost:61616";
> private Connection connection;
> private Session session;
> private Queue aQueue ;
>
> public void contextInitialized(ServletContextEvent arg0) {
> try {
> broker.addConnector(url) ;
> broker.start();
>
> ActiveMQConnectionFactory factory = new
> ActiveMQConnectionFactory(url);
> connection = factory.createConnection();
> session = connection.createSession(false,
> Session.AUTO_ACKNOWLEDGE);
> aQueue = session.createQueue("test") ;
> MessageConsumer consumer =
> session.createConsumer(aQueue);
> consumer.setMessageListener(this) ;
>
> connection.start();
>
> Thread.sleep(10000) ;
>
> consumer = null ;
> connection.stop() ;
>
> } catch (Exception e) {
> System.err.println(e.getMessage());
> e.printStackTrace();
> throw new RuntimeException(e);
> }
> }
>
> public void contextDestroyed(ServletContextEvent arg0) {
> try {
> broker.stop();
> System.out.println("Connetor is stopped !");
> } catch (Exception e) {
> System.err.println(e.getMessage());
> e.printStackTrace();
> throw new RuntimeException(e);
> }
> }
>
> public void onMessage(Message arg0) {
> // TODO Auto-generated method stub
>
> }
> }
>
> I have no error at all.
> therefore, there is it somebody who could tell me what occurs with my jndi
> file because it seems that it is the cause of the problem.
> Indeed, i probably miss to tell you that in the first version of my code i
> can't put :
>
> ActiveMQConnectionFactory cf =
> ActiveMQConnectionFactory)ctx.lookup("jms/ConnectionFactory");
> Conenction conn = cf.createQueueConnection();
>
> This code produce a ClassCastException.
> Could you give a explanation or something.
> Probably too many time spent on this problem to have a clear and precise
> vision of it.
> Thanks in advance,
> Regards,
>
> Denez
>
>
> denez wrote:
>>
>> I try your both sample, but it still doesn't work.
>> I try to move my project directory because originally contains space. but
>> still have the same error.
>> I probaly miss something in my configuration or someting is wrong in my
>> code.
>> I don't understand.
>> So, could you give me or send me a sample web application that use
>> ActiveMQ ?
>> Thanks in advance.
>> Regards,
>>
>> Denez
>>
>>
>> Suchitha Koneru (sukoneru) wrote:
>>>
>>> The JMS documentation suggests that we start the connection after
>>> creating the receiver and registering it with a message listener. Please
>>> look at point no: 6 in the section "Client to Consume Messages"
>>> http://java.sun.com/developer/technicalArticles/Ecommerce/jms/index.html
>>>
>>>
>>> -----Original Message-----
>>> From: Dave Carlson [mailto:[EMAIL PROTECTED]
>>> Sent: Friday, August 17, 2007 7:58 AM
>>> To: [email protected]
>>> Cc: Suchitha Koneru (sukoneru)
>>> Subject: RE: Error on starting QueueConnection
>>>
>>> Are you sure about the ordering? It seems odd that you would want to
>>> start the flow of messages across the connection before you have created
>>> a receiver. Looking at ActiveMQ example code in ConsumerTool, they are
>>> creating the receiver first...
>>>
>>> ActiveMQConnectionFactory connectionFactory =
>>> new ActiveMQConnectionFactory(user, password, url);
>>> Connection connection =
>>> connectionFactory.createConnection();
>>> if (durable && clientId != null &&
>>> clientId.length()>0 && !"null".equals(clientId) ) {
>>> connection.setClientID(clientId);
>>> }
>>> connection.setExceptionListener(this);
>>> connection.start();
>>>
>>> session = connection.createSession(transacted,
>>> ackMode);
>>> if (topic) {
>>> destination =
>>> session.createTopic(subject);
>>> } else {
>>> destination =
>>> session.createQueue(subject);
>>> }
>>>
>>> replyProducer = session.createProducer(null);
>>>
>>> replyProducer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
>>>
>>> MessageConsumer consumer = null;
>>> if (durable && topic) {
>>> consumer =
>>> session.createDurableSubscriber((Topic) destination, consumerName);
>>> } else {
>>> consumer =
>>> session.createConsumer(destination);
>>> }
>>>
>>> ---- "Suchitha Koneru (sukoneru)" <[EMAIL PROTECTED]> wrote:
>>>> Start the queue connection after creating the receiver . Change the
>>>> order and see. It is always recommended that the connection is started
>>>
>>>> after creating the receiver . The following should be the order. Give
>>>> it a try.
>>>>
>>>> ActiveMQQueueReceiver aqr =
>>>> (ActiveMQQueueReceiver)qs.createReceiver(q) ;
>>>> aqr.setMessageListener(new
>>>> BatchReceiverTechnicalService()) ;
>>>> aqc.start() ;
>>>>
>>>> Also I noticed that in the jndi resource for jms/Connectionfactory
>>>> you are not using max.Inactivity flag for the broker url.
>>>> But while adding connector to the broker you are using this flag,
>>>> please use the same broker url through out for consistency.
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: denez [mailto:[EMAIL PROTECTED]
>>>> Sent: Thursday, August 16, 2007 7:03 AM
>>>> To: [email protected]
>>>> Subject: Re: Error on starting QueueConnection
>>>>
>>>>
>>>> Do you already have this type of error ?
>>>> Do i forget something in my configuration.
>>>> I use :
>>>> apache-activemq-4.1.1.jar
>>>> Tomcat 5.5.23
>>>> jdk1.5.0_07
>>>>
>>>> Could you tell me if something is wrong !
>>>> Here is my context declaration in Tomcat :
>>>>
>>>> <Context path="/jms" reloadable="true" docBase="C:\myJMSApp"
>>>> workDir="C:\myJMSApp\work" >
>>>> <Resource
>>>> name="jms/ConnectionFactory"
>>>> auth="Container"
>>>> type="org.apache.activemq.ActiveMQConnectionFactory"
>>>> description="JMS Connection Factory"
>>>> factory="org.apache.activemq.jndi.JNDIReferenceFactory"
>>>> brokerURL="tcp://localhost:61616"
>>>> brokerName="LocalActiveMQBroker"
>>>> useEmbeddedBroker="true"/>
>>>>
>>>> <Resource name="jms/batch"
>>>> auth="Container"
>>>> type="org.apache.activemq.command.ActiveMQQueue"
>>>> factory="org.apache.activemq.jndi.JNDIReferenceFactory"
>>>> physicalName="batch"/>
>>>> </Context>
>>>>
>>>> Thanks in advance for all reply, help / answer.
>>>> Regards,
>>>>
>>>> Denez
>>>>
>>>>
>>>> denez wrote:
>>>> >
>>>> > Hi all,
>>>> >
>>>> > I got the same error trying to create a sender !
>>>> > A very strange thing appear because there is no exception throw !
>>>> > Just
>>>>
>>>> > nothing happened and the rest of my code is never (i suspect)
>>>> excecuted.
>>>> >
>>>> > Could you help me, or ask me if something is not clear.
>>>> > Thanks in advance,
>>>> > Regards,
>>>> >
>>>> > Denez
>>>> >
>>>> >
>>>> > denez wrote:
>>>> >>
>>>> >> I search around to find my error and find that you should use
>>>> >> ActiveMQConnection.
>>>> >> Now i can start the connection but have a same problem will trying
>>>> >> to
>>>>
>>>> >> createReceiver.
>>>> >> See the code below (previous + modification) :
>>>> >>
>>>> >> public class ActiveMQBrokerStartListener implements
>>>> >> ServletContextListener {
>>>> >>
>>>> >> BrokerService broker = new BrokerService();
>>>> >> ActiveMQConnection aqc = null ;
>>>> >>
>>>> >> public void contextInitialized(ServletContextEvent arg0) {
>>>> >> try{
>>>> >>
>>>> >>
>>>> broker.addConnector("tcp://localhost:61616?trace=true&wireFormat.maxIn
>>>> ac
>>>> tivityDuration=-1");
>>>> >> broker.start();
>>>> >> InitialContext ic = new InitialContext();
>>>> >> Context ctx = (Context) ic.lookup("java:comp/env");
>>>> >> ActiveMQConnectionFactory acf =
>>>> >>
>>>> >> (ActiveMQConnectionFactory)ctx.lookup("jms/ConnectionFactory");
>>>> >> aqc =
>>> (ActiveMQConnection)acf.createQueueConnection();
>>>> >> aqc.start() ;
>>>> >> ActiveMQQueueSession qs =
>>>> >>
>>>> >> (ActiveMQQueueSession)aqc.createQueueSession(false,
>>>> >> Session.CLIENT_ACKNOWLEDGE) ;
>>>> >> ActiveMQQueue q =
>>>> (ActiveMQQueue)ctx.lookup("jms/batch");
>>>> >> ActiveMQQueueReceiver aqr =
>>>> >> (ActiveMQQueueReceiver)qs.createReceiver(q) ; // ERROR LINE
>>>> >> aqr.setMessageListener(new
>>>> >> BatchReceiverTechnicalService()) ;
>>>> >> }catch(Exception e){
>>>> >> System.err.println(e.getMessage());
>>>> >> e.printStackTrace();
>>>> >> throw new RuntimeException(e);
>>>> >> }
>>>> >> }
>>>> >>
>>>> >> public void contextDestroyed(ServletContextEvent arg0) {
>>>> >> try{
>>>> >> aqc.close() ;
>>>> >> //qc.close() ;
>>>> >> broker.stop();
>>>> >> }catch(Exception e){
>>>> >> System.err.println(e.getMessage());
>>>> >> e.printStackTrace();
>>>> >> throw new RuntimeException(e);
>>>> >> }
>>>> >> }
>>>> >> }
>>>> >>
>>>> >> What is wrong ??
>>>> >> Why i can not create a Receiver ?
>>>> >>
>>>> >> Thanks in advance
>>>> >> Regards,
>>>> >> Denez
>>>> >>
>>>> >>
>>>> >>
>>>> >>
>>>> >> denez wrote:
>>>> >>>
>>>> >>> Hi all,
>>>> >>>
>>>> >>> I would like to start a broker and Activate a MessageListener on
>>>> >>> startup of my webApp.
>>>> >>> I made all the needed configuration to have a
>>>> ServletContextListener.
>>>> >>> I can debug inside my ServletContextListener implementation named
>>> :
>>>> >>> ActiveMQBrokerStartListener.
>>>> >>> You can see the code of it below :
>>>> >>>
>>>> >>> public class ActiveMQBrokerStartListener implements
>>>> >>> ServletContextListener {
>>>> >>> BrokerService broker = new BrokerService();
>>>> >>> QueueConnection qc = null ;
>>>> >>>
>>>> >>> public void contextInitialized(ServletContextEvent arg0) {
>>>> >>> try{
>>>> >>>
>>>> >>>
>>>> broker.addConnector("tcp://localhost:61616?trace=true&wireFormat.maxIn
>>>> ac
>>>> tivityDuration=-1");
>>>> >>> broker.start();
>>>> >>> InitialContext ic = new InitialContext();
>>>> >>> Context ctx = (Context) ic.lookup("java:comp/env");
>>>> >>> ActiveMQConnectionFactory cf =
>>>> >>>
>>>> >>> ActiveMQConnectionFactory)ctx.lookup("jms/ConnectionFactory");
>>>> >>> qc = (QueueConnection) cf.createQueueConnection();
>>>> >>> qc.start() ;
>>>> >>> QueueSession qs = qc.createQueueSession(false,
>>>> >>> Session.CLIENT_ACKNOWLEDGE) ;
>>>> >>> Queue q = (Queue)ctx.lookup("jms/batch");
>>>> >>> QueueReceiver qr = qs.createReceiver(q) ;
>>>> >>> qr.setMessageListener(new Receiver()) ;
>>>> >>> }catch(Exception e){
>>>> >>> System.err.println(e.getMessage());
>>>> >>> e.printStackTrace();
>>>> >>> throw new RuntimeException(e);
>>>> >>> }
>>>> >>> }
>>>> >>>
>>>> >>> public void contextDestroyed(ServletContextEvent arg0) {
>>>> >>> try{
>>>> >>> qc.close() ;
>>>> >>> broker.stop();
>>>> >>> }catch(Exception e){
>>>> >>> System.err.println(e.getMessage());
>>>> >>> e.printStackTrace();
>>>> >>> throw new RuntimeException(e);
>>>> >>> }
>>>> >>> }
>>>> >>> }
>>>> >>>
>>>> >>> I place a breakpoint on the line that should create a
>>> QueueSession.
>>>> >>> But never enter in it. If i place a breakpoint on the ligne that
>>>> >>> createQueueConnection i have it.
>>>> >>> So the problem is on the qc.start() ; If i inspect the
>>>> >>> QueueConnection i can see that the started=false as normal.
>>>> >>>
>>>> >>> What is wrong on my code ?
>>>> >>> Could you help me, or tell me what you think about this ?
>>>> >>>
>>>> >>> Regards,
>>>> >>> Denez
>>>> >>>
>>>> >>
>>>> >>
>>>> >
>>>> >
>>>>
>>>> --
>>>> View this message in context:
>>>> http://www.nabble.com/Error-on-starting-QueueConnection-tf4278515s2354
>>>> .h
>>>> tml#a12182022
>>>> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>>>
>>>
>>
>>
>
>
--
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