Package org.apache.oozie.jms

Examples of org.apache.oozie.jms.MessageReceiver

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            String topic = "hcat.mydb.mytable";

            JMSConnectionInfo connInfo = hcatService.getJMSConnectionInfo(new URI("hcat://hcat.server.com:8020"));
            jmsService.registerForNotification(connInfo, topic, new HCatMessageHandler(server));

            MessageReceiver receiver1 = jmsService.getMessageReceiver(connInfo, topic);
            jmsService.registerForNotification(connInfo, topic, new HCatMessageHandler(server));

            MessageReceiver receiver2 = jmsService.getMessageReceiver(connInfo, topic);
            assertEquals(receiver1, receiver2);
        }
        catch (Exception e) {
            e.printStackTrace();
            fail("Exception encountered : " + e);
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            String topic = "hcatalog.mydb.mytable";

            JMSConnectionInfo connInfo = hcatService.getJMSConnectionInfo(new URI("hcat://hcat.server.com:8020"));
            jmsService.registerForNotification(connInfo, topic, new HCatMessageHandler(server));

            MessageReceiver receiver1 = jmsService.getMessageReceiver(connInfo, topic);
            assertNotNull(receiver1);

            jmsService.unregisterFromNotification(connInfo, topic);

            receiver1 = jmsService.getMessageReceiver(connInfo, topic);
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                            ConnectionContext connCtxt = createConnectionContext(connInfo);
                            if (connCtxt == null) {
                                queueTopicForRetry(connInfo, topic, msgHandler);
                                return;
                            }
                            MessageReceiver receiver = registerForTopic(connInfo, connCtxt, topic, msgHandler);
                            if (receiver == null) {
                                queueTopicForRetry(connInfo, topic, msgHandler);
                            }
                            else {
                                LOG.info("Registered a listener for topic {0} on {1}", topic, connInfo);
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            removeTopicFromRetryList(connInfo, topic);
        }
        else {
            Map<String, MessageReceiver> topicsMap = receiversMap.get(connInfo);
            if (topicsMap != null) {
                MessageReceiver receiver = null;
                synchronized (topicsMap) {
                    receiver = topicsMap.remove(topic);
                    if (topicsMap.isEmpty()) {
                        receiversMap.remove(connInfo);
                    }
                }
                if (receiver != null) {
                    try {
                        receiver.getSession().close();
                    }
                    catch (JMSException e) {
                        LOG.warn("Unable to close session " + receiver.getSession(), e);
                    }
                }
                else {
                    LOG.warn("Received request to unregister from topic [{0}] on [{1}], but no matching session.",
                            topic, connInfo);
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    private MessageReceiver registerForTopic(JMSConnectionInfo connInfo, ConnectionContext connCtxt, String topic,
            MessageHandler msgHandler) {
        try {
            Session session = connCtxt.createSession(sessionOpts);
            MessageConsumer consumer = connCtxt.createConsumer(session, topic);
            MessageReceiver receiver = new MessageReceiver(msgHandler, session, consumer);
            consumer.setMessageListener(receiver);
            return receiver;
        }
        catch (JMSException e) {
            LOG.warn("Error while registering to listen to topic {0} from {1}", topic, connInfo, e);
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        ConnectionRetryInfo connRetryInfo = queueConnectionForRetry(connInfo);
        Map<String, MessageReceiver> listeningTopicsMap = receiversMap.remove(connInfo);
        if (listeningTopicsMap != null) {
            Map<String, MessageHandler> retryTopicsMap = connRetryInfo.getTopicsToRetry();
            for (Entry<String, MessageReceiver> topicEntry : listeningTopicsMap.entrySet()) {
                MessageReceiver receiver = topicEntry.getValue();
                retryTopicsMap.put(topicEntry.getKey(), receiver.getMessageHandler());
            }
        }
    }
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                if (listeningTopicsMap.containsKey(topic)) {
                    continue;
                }
                synchronized (listeningTopicsMap) {
                    if (!listeningTopicsMap.containsKey(topic)) {
                        MessageReceiver receiver = registerForTopic(connInfo, connCtxt, topic, topicEntry.getValue());
                        if (receiver == null) {
                            LOG.warn("Failed to register a listener for topic {0} on {1}", topic, connInfo);
                        }
                        else {
                            listeningTopicsMap.put(topic, receiver);
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            String topic = "hcat.mydb.mytable";

            JMSConnectionInfo connInfo = hcatService.getJMSConnectionInfo(new URI("hcat://hcat.server.com:8020"));
            jmsService.registerForNotification(connInfo, topic, new HCatMessageHandler(server));

            MessageReceiver receiver1 = jmsService.getMessageReceiver(connInfo, topic);
            jmsService.registerForNotification(connInfo, topic, new HCatMessageHandler(server));

            MessageReceiver receiver2 = jmsService.getMessageReceiver(connInfo, topic);
            assertEquals(receiver1, receiver2);
        }
        catch (Exception e) {
            e.printStackTrace();
            fail("Exception encountered : " + e);
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            String topic = "hcatalog.mydb.mytable";

            JMSConnectionInfo connInfo = hcatService.getJMSConnectionInfo(new URI("hcat://hcat.server.com:8020"));
            jmsService.registerForNotification(connInfo, topic, new HCatMessageHandler(server));

            MessageReceiver receiver1 = jmsService.getMessageReceiver(connInfo, topic);
            assertNotNull(receiver1);

            jmsService.unregisterFromNotification(connInfo, topic);

            receiver1 = jmsService.getMessageReceiver(connInfo, topic);
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                            ConnectionContext connCtxt = createConnectionContext(connInfo);
                            if (connCtxt == null) {
                                queueTopicForRetry(connInfo, topic, msgHandler);
                                return;
                            }
                            MessageReceiver receiver = registerForTopic(connInfo, connCtxt, topic, msgHandler);
                            if (receiver == null) {
                                queueTopicForRetry(connInfo, topic, msgHandler);
                            }
                            else {
                                LOG.info("Registered a listener for topic {0} on {1}", topic, connInfo);
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Related Classes of org.apache.oozie.jms.MessageReceiver

  • org.apache.oozie.service.JMSAccessorService
  • org.apache.oozie.service.TestJMSAccessorService
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