Probelems with MDB listening to MQ (Startup class issue )

Question

Hello ,
          I am supposed to write a Message driven bean that would reside on
          Weblogic7.0 and listen to a particular queue of IBM MQ.
          I understand that we need to write a Start-up class for this. I have
          written the start-up class but I am getting the following error:
          <Apr 16, 2003 3:17:14 PM EDT> <Warning> <EJB> <010061> <The
          Message-Driven EJB: SimpleMDB is unable
          to connect to the JMS destination: ivtQ. The EJB container will
          automatically attempt to re-establis
          h the connection with the JMS server. This warning may occur during
          WebLogic Cluster start-up if the
          JMS destination is located on another server. When the JMS server
          connection is re-established, the
          Message-Driven EJB will again receive JMS messages.
          The Error was:
          The JMS destination with the JNDI name: ivtQ could not be found.
          Please ensure that the JNDI name in
          the weblogic-ejb-jar.xml is correct, and the JMS destination has been
          deployed.>
          I understand that there are some configuration issues:
          Can you please guide where am I going wrong:
          1.     What should be the value of the <destination-jndi-name> in the
          Weblogic-ejb-jar. I have not passed any Queue name through the
          start-up class &#8230;Is it ok?
          2.     Then what queue name should I specify. (ofcousrse it should be the
          MQ queue name but do I need to add that in the JNDI or in the
          weblogic console&#8230;?
          3.     Please confirm that the <connection-factory-jndi-name> mentioned in
          the weblogic-ejb-jar.xml should be the same as what I am passing as
          JNDIName (through weblogic console).
          4.     Kindly advice if I am missing anything (especially in my start-ip
          class)
          Here are my Deployemnt descriptors:
          weblogic-ejb-jar
          <?xml version="1.0"?>
          <!DOCTYPE weblogic-ejb-jar PUBLIC "-//BEA Systems, Inc.//DTD WebLogic
          7.0.0 EJB//EN" "http://www.bea.com/servers/wls700/dtd/weblogic-ejb-jar.dtd">
          <weblogic-ejb-jar>
               <weblogic-enterprise-bean>
                    <ejb-name>SimpleMDB</ejb-name>
                    <message-driven-descriptor>
                         <pool>
                              <max-beans-in-free-pool>8</max-beans-in-free-pool>
                              <initial-beans-in-free-pool>1</initial-beans-in-free-pool>
                         </pool>
                         <destination-jndi-name>ivtQ</destination-jndi-name>               
                         <initial-context-factory>
          com.sun.jndi.fscontext.RefFSContextFactory
          </initial-context-factory>
                         <provider-url>
          file:/D:/JNDI/
          </provider-url>
                         <connection-factory-jndi-name>
          MyQCF
          </connection-factory-jndi-name>
                    </message-driven-descriptor>
               </weblogic-enterprise-bean>
          </weblogic-ejb-jar>
          ejb-jar.xml
          <?xml version="1.0"?>
          <!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise
          JavaBeans 2.0//EN" "http://java.sun.com/dtd/ejb-jar_2_0.dtd">
          <ejb-jar>
               <enterprise-beans>
                    <message-driven>
                         <ejb-name>SimpleMDB</ejb-name>
                         <ejb-class>weblogic.jms.whitepaper.SimpleMDB</ejb-class>
                         <transaction-type>Container</transaction-type>
                         <message-driven-destination>
                              <!-- In WebLogic Server 6.0, this next parameter is named
          "jms-destination-type" -->
                              <destination-type>javax.jms.Queue</destination-type>
                         </message-driven-destination>
                    </message-driven>
               </enterprise-beans>
               <assembly-descriptor>
                    <container-transaction>
                         <method>
                              <ejb-name>SimpleMDB</ejb-name>
                              <method-name>*</method-name>
                         </method>
                         <trans-attribute>Required</trans-attribute>
                    </container-transaction>
               </assembly-descriptor>
          </ejb-jar>
          My Start-up class is as follows:
          import com.ibm.mq.jms.*;
          import java.util.*;
          import javax.jms.*;
          import javax.naming.*;
          import weblogic.common.*;
          public class MQJMSStartup implements T3StartupDef
               /** * The name of the queue manager to connect to. The startup class
          * will throw an exception if this parameter is not set. */
               public final static String QM_NAME_PROPERTY = "QManager";
               /** * The host name where the queue manager runs. If not set, the *
          startup class will create a "bindings mode" connection to a * queue
          manager on the local host. */
               public final static String QM_HOST_PROPERTY = "QManagerHost";
               /** * The port number where the queue manager listens. If not set,
          this * defaults to 1414, the default MQSeries port */
               public final static String QM_PORT_PROPERTY = "QManagerPort";
               /** * The name in JNDI to store this queue manager object under. * If
          not set, the startup class will throw an exception. */
               public static final String JNDI_NAME_PROPERTY = "JNDIName";
               // Required
               public MQJMSStartup()
               // Required, but not needed
               public void setServices(T3ServicesDef services)
                    public String startup(String name, Hashtable args) throws Exception
                    String qmName = (String)args.get(QM_NAME_PROPERTY);
                    System.out.println("*****The qmName is "+qmName);
                    if (qmName == null)
                         throw new Exception("Startup parameter " + QM_NAME_PROPERTY + "
          must be set");
                    String jndiName = (String)args.get(JNDI_NAME_PROPERTY);
                    System.out.println("***The JNDI Nname is "+jndiName);
                    if (jndiName == null)
                         throw new Exception("Startup parameter " + JNDI_NAME_PROPERTY + "
          must be set");
                    String qmHost = (String)args.get(QM_HOST_PROPERTY);
                    System.out.println("*****The qmHost is "+qmHost);
                    String qmPort = (String)args.get(QM_PORT_PROPERTY);
                    System.out.println("*****The qmPort is "+qmPort);
                    MQQueueConnectionFactory factory = new MQQueueConnectionFactory();
                    factory.setQueueManager(qmName);
                    if (qmHost == null)
                         factory.setTransportType(JMSC.MQJMS_TP_BINDINGS_MQ);
                         factory.setHostName(qmHost);
                         if (qmPort != null)
                              try
                                   int portNum = Integer.parseInt(qmPort);
                                   factory.setPort(portNum);
                              catch (NumberFormatException ignore)
                    else
                         factory.setTransportType(JMSC.MQJMS_TP_CLIENT_MQ_TCPIP);
                    InitialContext context = new InitialContext();
                    context.bind(jndiName, factory);
                    context.close();
                    StringBuffer buf = new StringBuffer();
                    buf.append( "A connection factory was created for the MQ Queue
          Manager ");
                    buf.append(qmName);
                    buf.append(" and stored in JNDI at ");
                    buf.append(jndiName);
                    System.out.println("*****The mqstartup is executed
          succesfully"+buf.toString());
                    return buf.toString();
          The args that I pass through the weblogic console is as follows:
          QManager=QM_mphasis_eight, JNDIName=MyQCF
          Please advice,
          regards,
          Milan Doshi
          

Answer 1

Thanks for the response.
          I have written the startUp class but I am getting the following error:
          The Error was:
          The JMS destination with the JNDI name: MySenderQueue could not be
          found. Please ensure that the
          JNDI name in the weblogic-ejb-jar.xml is correct, and the JMS
          destination has been deployed.>
          =====
          My startup class is as follows:
          String qmPort = (String)args.get(QM_PORT_PROPERTY);
          String qmHost = (String)args.get(QM_HOST_PROPERTY);
          String qmName = (String)args.get(QM_NAME_PROPERTY);
          MQQueueConnectionFactory factory = new MQQueueConnectionFactory();
          factory.setQueueManager(qmName);
          factory.setHostName(qmHost);
          if (qmPort != null)
          try
          int portNum = Integer.parseInt(qmPort);
          factory.setPort(portNum);
          catch (NumberFormatException ignore)
          if (qmHost == null)
          factory.setTransportType(JMSC.MQJMS_TP_BINDINGS_MQ);
          else
          factory.setTransportType(JMSC.MQJMS_TP_CLIENT_MQ_TCPIP);
          InitialContext context = new InitialContext();
          context.bind(jndiName, factory);
          QueueConnection connection = factory.createQueueConnection();
          boolean transacted = false;
          QueueSession session = connection.createQueueSession( transacted,
          Session.AUTO_ACKNOWLEDGE);
          Queue ioQueue = session.createQueue("MySenderQueue");
          context.bind("MySenderQueue",ioQueue);
          context.close();
          ===================================================
          My Weblogic-ejb-jar.xml is like this:
          <weblogic-ejb-jar>
          <weblogic-enterprise-bean>
          <ejb-name>SimpleMDB</ejb-name>
          <message-driven-descriptor>
          <pool>
          <max-beans-in-free-pool>8</max-beans-in-free-pool>
          <initial-beans-in-free-pool>1</initial-beans-in-free-pool>
          </pool>
          <destination-jndi-name>MySenderQueue</destination-jndi-name>
          <connection-factory-jndi-name>
          MyQCF
          </connection-factory-jndi-name>
          </message-driven-descriptor>
          </weblogic-enterprise-bean>
          </weblogic-ejb-jar>
          ======================================================
          Can you please guide me what is wrong in registering the Queue?
          Thanks once again for the response,
          Milan Doshi
          "sudhir" <[email protected]> wrote in message news:<[email protected]>...
          > Mian,
          >
          > You should pass the Queue Name in the startup class arguments. This would be
          > the same name as the MQ Queue you have defined. There is no need to specify to
          > provider URL to the file ... If you do, then ensure that the the queue name should
          > refer to the MQ Administered Queue object defined by jmsadmin.
          >
          > -Sudhir
          >
          >
          >
          > [email protected] (Milan Doshi) wrote:
          > >Hello ,
          > >
          > >I am supposed to write a Message driven bean that would reside on
          > >Weblogic7.0 and listen to a particular queue of IBM MQ.
          > >
          > >I understand that we need to write a Start-up class for this. I have
          > >written the start-up class but I am getting the following error:
          > >
          > ><Apr 16, 2003 3:17:14 PM EDT> <Warning> <EJB> <010061> <The
          > >Message-Driven EJB: SimpleMDB is unable
          > >to connect to the JMS destination: ivtQ. The EJB container will
          > >automatically attempt to re-establis
          > >h the connection with the JMS server. This warning may occur during
          > >WebLogic Cluster start-up if the
          > > JMS destination is located on another server. When the JMS server
          > >connection is re-established, the
          > > Message-Driven EJB will again receive JMS messages.
          > >The Error was:
          > >The JMS destination with the JNDI name: ivtQ could not be found.
          > >Please ensure that the JNDI name in
          > > the weblogic-ejb-jar.xml is correct, and the JMS destination has been
          > >deployed.>
          > >
          > >I understand that there are some configuration issues:
          > >
          > >Can you please guide where am I going wrong:
          > >1.     What should be the value of the <destination-jndi-name> in the
          > >Weblogic-ejb-jar. I have not passed any Queue name through the
          > >start-up class ?Is it ok?
          > >2.     Then what queue name should I specify. (ofcousrse it should be the
          > >weblogic console??
          > >3.     Please confirm that the <connection-factory-jndi-name> mentioned in
          > >the weblogic-ejb-jar.xml should be the same as what I am passing as
          > >JNDIName (through weblogic console).
          > >4.     Kindly advice if I am missing anything (especially in my start-ip
          > >class)
          > >
          > >Here are my Deployemnt descriptors:
          > >
          > >weblogic-ejb-jar
          > >
          > ><?xml version="1.0"?>
          > ><!DOCTYPE weblogic-ejb-jar PUBLIC "-//BEA Systems, Inc.//DTD WebLogic
          > >7.0.0 EJB//EN" "http://www.bea.com/servers/wls700/dtd/weblogic-ejb-jar.dtd">
          > ><weblogic-ejb-jar>
          > >     <weblogic-enterprise-bean>
          > >          <ejb-name>SimpleMDB</ejb-name>
          > >          <message-driven-descriptor>
          > >               <pool>
          > >                    <max-beans-in-free-pool>8</max-beans-in-free-pool>
          > >                    <initial-beans-in-free-pool>1</initial-beans-in-free-pool>
          > >               </pool>
          > >               <destination-jndi-name>ivtQ</destination-jndi-name>               
          > >               <initial-context-factory>
          > > com.sun.jndi.fscontext.RefFSContextFactory
          > > </initial-context-factory>
          > >               <provider-url>
          > > file:/D:/JNDI/
          > > </provider-url>
          > >               <connection-factory-jndi-name>
          > > MyQCF
          > > </connection-factory-jndi-name>
          > >          </message-driven-descriptor>
          > >     </weblogic-enterprise-bean>
          > ></weblogic-ejb-jar>
          > >
          > >
          > >
          > >
          > >
          > >
          > >
          > >ejb-jar.xml
          > >
          > ><?xml version="1.0"?>
          > ><!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise
          > >JavaBeans 2.0//EN" "http://java.sun.com/dtd/ejb-jar_2_0.dtd">
          > ><ejb-jar>
          > >     <enterprise-beans>
          > >          <message-driven>
          > >               <ejb-name>SimpleMDB</ejb-name>
          > >               <ejb-class>weblogic.jms.whitepaper.SimpleMDB</ejb-class>
          > >               <transaction-type>Container</transaction-type>
          > >               <message-driven-destination>
          > >                    <!-- In WebLogic Server 6.0, this next parameter is named
          > >"jms-destination-type" -->
          > >                    <destination-type>javax.jms.Queue</destination-type>
          > >               </message-driven-destination>
          > >          </message-driven>
          > >     </enterprise-beans>
          > >     <assembly-descriptor>
          > >          <container-transaction>
          > >               <method>
          > >                    <ejb-name>SimpleMDB</ejb-name>
          > >                    <method-name>*</method-name>
          > >               </method>
          > >               <trans-attribute>Required</trans-attribute>
          > >          </container-transaction>
          > >     </assembly-descriptor>
          > ></ejb-jar>
          > >
          > >
          > >My Start-up class is as follows:
          > >
          > >import com.ibm.mq.jms.*;
          > >import java.util.*;
          > >import javax.jms.*;
          > >import javax.naming.*;
          > >import weblogic.common.*;
          > >
          > >
          > >public class MQJMSStartup implements T3StartupDef
          > >{
          > >     /** * The name of the queue manager to connect to. The startup class
          > >* will throw an exception if this parameter is not set. */
          > >     public final static String QM_NAME_PROPERTY = "QManager";
          > >     
          > >     /** * The host name where the queue manager runs. If not set, the *
          > >startup class will create a "bindings mode" connection to a * queue
          > >manager on the local host. */
          > >     public final static String QM_HOST_PROPERTY = "QManagerHost";
          > >     
          > >     /** * The port number where the queue manager listens. If not set,
          > >this * defaults to 1414, the default MQSeries port */
          > >     public final static String QM_PORT_PROPERTY = "QManagerPort";
          > >          
          > >     /** * The name in JNDI to store this queue manager object under. * If
          > >not set, the startup class will throw an exception. */
          > >     public static final String JNDI_NAME_PROPERTY = "JNDIName";
          > >
          > >     // Required
          > >     public MQJMSStartup()
          > >     {
          > >     }
          > >
          > >     // Required, but not needed
          > >     public void setServices(T3ServicesDef services)
          > >     {
          > >     }
          > >
          > >          public String startup(String name, Hashtable args) throws Exception
          > >     {
          > >          String qmName = (String)args.get(QM_NAME_PROPERTY);
          > >          System.out.println("*****The qmName is "+qmName);
          > >          if (qmName == null)
          > >          {
          > >               throw new Exception("Startup parameter " + QM_NAME_PROPERTY + "
          > >must be set");
          > >          }
          > >          String jndiName = (String)args.get(JNDI_NAME_PROPERTY);
          > >          System.out.println("***The JNDI Nname is "+jndiName);
          > >          if (jndiName == null)
          > >          {
          > >               throw new Exception("Startup parameter " + JNDI_NAME_PROPERTY + "
          > >must be set");
          > >          }
          > >          String qmHost = (String)args.get(QM_HOST_PROPERTY);
          > >          System.out.println("*****The qmHost is "+qmHost);
          > >          String qmPort = (String)args.get(QM_PORT_PROPERTY);
          > >          System.out.println("*****The qmPort is "+qmPort);
          > >          MQQueueConnectionFactory factory = new MQQueueConnectionFactory();
          > >          factory.setQueueManager(qmName);
          > >          if (qmHost == null)
          > >          {
          > >               factory.setTransportType(JMSC.MQJMS_TP_BINDINGS_MQ);
          > >               factory.setHostName(qmHost);
          > >               if (qmPort != null)
          > >               {
          > >                    try
          > >                    {
          > >                         int portNum = Integer.parseInt(qmPort);
          > >                         factory.setPort(portNum);
          > >                    }
          > >                    catch (NumberFormatException ignore)
          > >                    {
          > >
          > >                    }
          > >               }
          > >          }
          > >          else
          > >          {
          > >               factory.setTransportType(JMSC.MQJMS_TP_CLIENT_MQ_TCPIP);
          > >          }
          > >
          > >          InitialContext context = new InitialContext();
          > >          context.bind(jndiName, factory);
          > >          context.close();
          > >          StringBuffer buf = new StringBuffer();
          > >          buf.append( "A connection factory was created for the MQ Queue
          > >Manager ");
          > >          buf.append(qmName);
          > >          buf.append(" and stored in JNDI at ");
          > >          buf.append(jndiName);
          > >          System.out.println("*****The mqstartup is executed
          > >succesfully"+buf.toString());
          > >          return buf.toString();
          > >     }
          > >}
          > >
          > >
          > >
          > >
          > >The args that I pass through the weblogic console is as follows:
          > >
          > >QManager=QM_mphasis_eight, JNDIName=MyQCF
          > >
          > >
          > >
          > >
          > >
          > >Please advice,
          > >
          > >regards,
          > >
          > >Milan Doshi