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POgetting error while publishing message to Message Broker's Topic from esb's Proxy
 

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  1. POgetting error while publishing message to Message Broker's Topic from esb's Proxy
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    <p>Whenever i try to publish a message from esb to message broker's topic, i get this error</p> <pre><code>[2013-04-19 14:51:45,930] ERROR - AMQConnection Throwable Received but no listener set: org.wso2.andes.client.AMQNoRoute Exception: Error: No Route for message [error code 312: no route] </code></pre> <p>My proxy code is</p> <pre><code> &lt;proxy name="SendMessageProxy" transports="http" startOnLoad="true"&gt; &lt;target&gt; &lt;endpoint&gt; &lt;address uri="jms:/myTopic?&amp;amp;transport.jms.DestinationType=topic"/&gt; &lt;/endpoint&gt; &lt;inSequence&gt; &lt;log level="custom"&gt; &lt;property name="STATE" value="message is sent to queue"/&gt; &lt;/log&gt; &lt;property name="OUT_ONLY" value="true"/&gt; &lt;property name="FORCE_SC_ACCEPTED" value="true" scope="axis2"/&gt; &lt;/inSequence&gt; &lt;outSequence/&gt; &lt;/target&gt; &lt;/proxy&gt;` </code></pre> <p>My jndi configuration and axis 2 configuration are properly configured.My MB is running on port 9444 and Publisher_esb is running on 9443 and subscriber esb is running at port 9446. When i keep my subscriber active and then if i post a message from my publisher the message gets reflected to the subsciber.</p> <p>Code to get message from subscriber is</p> <pre><code>package xml.parser; import org.w3c.dom.*; import javax.xml.xpath.*; import javax.xml.namespace.NamespaceContext; import javax.xml.parsers.*; import java.io.IOException; import java.util.Enumeration; import java.util.Iterator; import org.xml.sax.InputSource; import org.xml.sax.SAXException; import javax.jms.*; import javax.naming.Context; import javax.naming.InitialContext; import javax.naming.NamingException; import java.util.Properties; public class Parser { public static final String QPID_ICF = "org.wso2.andes.jndi.PropertiesFileInitialContextFactory"; private static final String CF_NAME_PREFIX = "connectionfactory."; private static final String CF_NAME = "qpidConnectionfactory"; String userName = "admin"; String password = "admin"; private static String CARBON_CLIENT_ID = "carbon"; private static String CARBON_VIRTUAL_HOST_NAME = "carbon"; private static String CARBON_DEFAULT_HOSTNAME = "localhost"; private static String CARBON_BROKER_PORT = "5673"; String topicName = "myTopic"; public static void main(String[] args) throws NamingException, JMSException, XPathExpressionException, ParserConfigurationException, SAXException, IOException { Parser queueReceiver = new Parser(); String message = queueReceiver.subscribe(); } public String subscribe() throws NamingException, JMSException { String messageContent = ""; Properties properties = new Properties(); properties.put(Context.INITIAL_CONTEXT_FACTORY, QPID_ICF); properties.put(CF_NAME_PREFIX + CF_NAME, getTCPConnectionURL(userName, password)); properties.put("topic." + topicName, topicName); System.out.println("getTCPConnectionURL(userName,password) = " + getTCPConnectionURL(userName, password)); InitialContext ctx = new InitialContext(properties); // Lookup connection factory TopicConnectionFactory connFactory = (TopicConnectionFactory) ctx .lookup(CF_NAME); TopicConnection topicConnection = connFactory.createTopicConnection(); topicConnection.start(); TopicSession topicSession = topicConnection.createTopicSession(false, QueueSession.AUTO_ACKNOWLEDGE); // Send message //Topic topic = topicSession.createTopic(topicName); Topic topic = (Topic) ctx.lookup(topicName); javax.jms.TopicSubscriber topicSubscriber = topicSession .createDurableSubscriber(topic,"admin"); Message message = topicSubscriber.receive(); if (message instanceof TextMessage) { TextMessage textMessage = (TextMessage) message; System.out.println("textMessage.getText() = " + textMessage.getText()); messageContent = textMessage.getText(); } topicSession.close(); topicConnection.close(); return messageContent; } public String getTCPConnectionURL(String username, String password) { return new StringBuffer().append("amqp://").append(username) .append(":").append(password).append("@") .append(CARBON_CLIENT_ID).append("/") .append(CARBON_VIRTUAL_HOST_NAME).append("?brokerlist='tcp://") .append(CARBON_DEFAULT_HOSTNAME).append(":") .append(CARBON_BROKER_PORT).append("'").toString(); } } </code></pre> <p>Whne i ran the subscriber for the first time it gave me the result but after that it is giving exception as:</p> <pre><code>[2013-04-19 17:24:26,947] ERROR {org.wso2.andes.transport.network.mina.MinaNetworkHandler} - Exception caught by Mina java.io.IOException: An existing connection was forcibly closed by the remote host at sun.nio.ch.SocketDispatcher.read0(Native Method) at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:43) at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:218) at sun.nio.ch.IOUtil.read(IOUtil.java:191) at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:359) at org.apache.mina.transport.socket.nio.SocketIoProcessor.read(SocketIoProcessor.java:218) at org.apache.mina.transport.socket.nio.SocketIoProcessor.process(SocketIoProcessor.java:198) at org.apache.mina.transport.socket.nio.SocketIoProcessor.access$400(SocketIoProcessor.java:45) at org.apache.mina.transport.socket.nio.SocketIoProcessor$Worker.run(SocketIoProcessor.java:485) at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:51) at java.lang.Thread.run(Thread.java:722) [2013-04-19 17:24:26,957] ERROR {org.wso2.andes.server.protocol.AMQProtocolEngine} - IOException caught in/127.0.0.1:16 513(admin), session closed implictly: java.io.IOException: An existing connection was forcibly closed by the remote host [2013-04-19 17:33:40,283] INFO {org.wso2.andes.server.protocol.AMQProtocolEngine} - Closing channel due to: Cannot sub scribe to queue carbon:admin as it already has an existing exclusive consumer [2013-04-19 17:33:40,283] INFO {org.wso2.andes.server.protocol.AMQProtocolEngine} - Channel[1] awaiting closure - proc essing close-ok [2013-04-19 17:33:40,283] INFO {org.wso2.andes.server.handler.ChannelCloseOkHandler} - Received channel-close-ok for c hannel-id 1 [2013-04-19 17:40:48,867] INFO {org.wso2.andes.server.queue.SimpleAMQQueue} - Auto-deleteing queue:tmp_127_0_0_1_16587 _1 </code></pre> <p>Can't i post messages to the topic without making my subscriber active. How can i make my message durable or persistent? And one more question i have is: How can i get the queueName associated with the topic that i created aor can i create a queue specifically for my topic myTopic? Looking forward to your answers. Thanks in advance</p>
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