Examples of org.apache.activemq.command.ActiveMQMapMessage

org.apache.activemq.command.ActiveMQMapMessage
A MapMessage object is used to send a set of name-value pairs. The names are String objects, and the values are primitive data types in the Java programming language. The names must have a value that is not null, and not an empty string. The entries can be accessed sequentially or randomly by name. The order of the entries is undefined. MapMessage inherits from the Message interface and adds a message body that contains a Map.
The primitive types can be read or written explicitly using methods for each type. They may also be read or written generically as objects. For instance, a call to MapMessage.setInt("foo", 6) is equivalent to MapMessage.setObject("foo", new Integer(6)). Both forms are provided, because the explicit form is convenient for static programming, and the object form is needed when types are not known at compile time.
When a client receives a MapMessage, it is in read-only mode. If a client attempts to write to the message at this point, a MessageNotWriteableException is thrown. If clearBody is called, the message can now be both read from and written to.
MapMessage objects support the following conversion table. The marked cases must be supported. The unmarked cases must throw a JMSException. The String -to-primitive conversions may throw a runtime exception if the primitive's valueOf() method does not accept it as a valid String representation of the primitive.
A value written as the row type can be read as the column type.
```
 | | boolean byte short char int long float double String byte[] |---------------------------------------------------------------------- |boolean | X X |byte | X X X X X |short | X X X X |char | X X |int | X X X |long | X X |float | X X X |double | X X |String | X X X X X X X X |byte[] | X |---------------------------------------------------------------------- <p/> 
```
Attempting to read a null value as a primitive type must be treated as calling the primitive's corresponding valueOf(String) conversion method with a null value. Since char does not support a String conversion, attempting to read a null value as a char must throw a NullPointerException. @openwire :marshaller code="25" @see javax.jms.Session#createMapMessage() @see javax.jms.BytesMessage @see javax.jms.Message @see javax.jms.ObjectMessage @see javax.jms.StreamMessage @see javax.jms.TextMessage

        }


        producer.send(test);
        Message msg = consumer1.receive(RECEIVE_TIMEOUT_MILLS);
        assertNotNull(msg);
        ActiveMQMapMessage message = (ActiveMQMapMessage) msg;
        assertTrue(message.isCompressed());


        for (int i = 0; i < 100; ++i) {
            assertEquals("test string: " + i, message.getString(Integer.toString(i)));
        }
    }

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        sendMapMessage(httpConnectionFactory, true);
        doTestMapMessageCompression();
    }


    private void doTestMapMessageCompression() throws Exception {
        ActiveMQMapMessage tcpMessage = (ActiveMQMapMessage) tcpConsumer.receive(TimeUnit.SECONDS.toMillis(3));
        ActiveMQMapMessage httpMessage = (ActiveMQMapMessage) httpConsumer.receive(TimeUnit.SECONDS.toMillis(3));


        assertNotNull(tcpMessage);
        assertNotNull(httpMessage);


        ByteSequence tcpContent = tcpMessage.getContent();
        ByteSequence httpContent = httpMessage.getContent();


        assertNotNull(tcpContent);
        assertNotNull(httpContent);


        assertTrue(tcpMessage.isCompressed());
        assertTrue(httpMessage.isCompressed());


        int tcpCompressedSize = tcpContent.getLength();
        int httpCompressedSize = httpContent.getLength();


        assertEquals(tcpContent.getLength(), httpContent.getLength());
        assertEquals(tcpMessage.getString("content"), httpMessage.getString("content"));


        LOG.info("Received Message on TCP: " + tcpMessage.toString());
        LOG.info("Received Message on HTTP: " + httpMessage.toString());


        sendMapMessage(false);


        ActiveMQMapMessage uncompressedHttpMessage = (ActiveMQMapMessage)
            httpConsumer.receive(TimeUnit.SECONDS.toMillis(3));
        int httpUncompressedSize = uncompressedHttpMessage.getContent().getLength();


        assertTrue(httpUncompressedSize > httpCompressedSize);
        assertTrue(httpUncompressedSize > tcpCompressedSize);
    }

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     * @return an ActiveMQMapMessage
     * @throws JMSException if the JMS provider fails to create this message due
     *                 to some internal error.
     */
    public MapMessage createMapMessage() throws JMSException {
        ActiveMQMapMessage message = new ActiveMQMapMessage();
        configureMessage(message);
        return message;
    }

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                }


                activeMessage = msg;
            } else if (message instanceof MapMessage) {
                MapMessage mapMsg = (MapMessage)message;
                ActiveMQMapMessage msg = new ActiveMQMapMessage();
                msg.setConnection(connection);
                Enumeration iter = mapMsg.getMapNames();


                while (iter.hasMoreElements()) {
                    String name = iter.nextElement().toString();
                    msg.setObject(name, mapMsg.getObject(name));
                }


                activeMessage = msg;
            } else if (message instanceof ObjectMessage) {
                ObjectMessage objMsg = (ObjectMessage)message;
                ActiveMQObjectMessage msg = new ActiveMQObjectMessage();
                msg.setConnection(connection);
                msg.setObject(objMsg.getObject());
                msg.storeContent();
                activeMessage = msg;
            } else if (message instanceof StreamMessage) {
                StreamMessage streamMessage = (StreamMessage)message;
                streamMessage.reset();
                ActiveMQStreamMessage msg = new ActiveMQStreamMessage();
                msg.setConnection(connection);
                Object obj = null;


                try {
                    while ((obj = streamMessage.readObject()) != null) {
                        msg.writeObject(obj);
                    }
                } catch (MessageEOFException e) {
                    // if an end of message stream as expected
                } catch (JMSException e) {
                }


                activeMessage = msg;
            } else if (message instanceof TextMessage) {
                TextMessage textMsg = (TextMessage)message;
                ActiveMQTextMessage msg = new ActiveMQTextMessage();
                msg.setConnection(connection);
                msg.setText(textMsg.getText());
                activeMessage = msg;
            } else if (message instanceof BlobMessage) {
              BlobMessage blobMessage = (BlobMessage)message;
              ActiveMQBlobMessage msg = new ActiveMQBlobMessage();
              msg.setConnection(connection);
              msg.setBlobDownloader(new BlobDownloader(connection.getBlobTransferPolicy()));
              try {
          msg.setURL(blobMessage.getURL());
        } catch (MalformedURLException e) {
          
        }
              activeMessage = msg;
            } else {

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            addItem(CompositeDataConstants.CONTENT_MAP, "Content map", SimpleType.STRING);
        }


        @Override
        public Map<String, Object> getFields(Object o) throws OpenDataException {
            ActiveMQMapMessage m = (ActiveMQMapMessage)o;
            Map<String, Object> rc = super.getFields(o);
            try {
                rc.put(CompositeDataConstants.CONTENT_MAP, "" + m.getContentMap());
            } catch (JMSException e) {
                rc.put(CompositeDataConstants.CONTENT_MAP, "");
            }
            return rc;
        }

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    protected void sendSubStats(ConnectionContext context, ObjectName[] subscribers, ActiveMQDestination replyTo) throws Exception {
        for (int i = 0; i < subscribers.length; i++) {
            ObjectName name = subscribers[i];
            SubscriptionViewMBean subscriber = (SubscriptionViewMBean)getBrokerService().getManagementContext().newProxyInstance(name, SubscriptionViewMBean.class, true);
            ActiveMQMapMessage statsMessage = prepareSubscriptionMessage(subscriber);
            sendStats(context, statsMessage, replyTo);
        }
    }

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            sendStats(context, statsMessage, replyTo);
        }
    }


    protected ActiveMQMapMessage prepareSubscriptionMessage(SubscriptionViewMBean subscriber) throws JMSException {
        ActiveMQMapMessage statsMessage = new ActiveMQMapMessage();
        statsMessage.setString("destinationName", subscriber.getDestinationName());
        statsMessage.setString("clientId", subscriber.getClientId());
        statsMessage.setString("connectionId", subscriber.getConnectionId());
        statsMessage.setLong("sessionId", subscriber.getSessionId());
        statsMessage.setString("selector", subscriber.getSelector());
        statsMessage.setLong("enqueueCounter", subscriber.getEnqueueCounter());
        statsMessage.setLong("dequeueCounter", subscriber.getDequeueCounter());
        statsMessage.setLong("dispatchedCounter", subscriber.getDispatchedCounter());
        statsMessage.setLong("dispatchedQueueSize", subscriber.getDispatchedQueueSize());
        statsMessage.setInt("prefetchSize", subscriber.getPrefetchSize());
        statsMessage.setInt("maximumPendingMessageLimit", subscriber.getMaximumPendingMessageLimit());
        statsMessage.setBoolean("exclusive", subscriber.isExclusive());
        statsMessage.setBoolean("retroactive", subscriber.isRetroactive());
        statsMessage.setBoolean("slowConsumer", subscriber.isSlowConsumer());
        return statsMessage;
    }

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                Set<Destination> destinations = getDestinations(queryDestination);


                for (Destination dest : destinations) {
                    DestinationStatistics stats = dest.getDestinationStatistics();
                    if (stats != null) {
                        ActiveMQMapMessage statsMessage = new ActiveMQMapMessage();
                        statsMessage.setString("destinationName", dest.getActiveMQDestination().toString());
                        statsMessage.setLong("size", stats.getMessages().getCount());
                        statsMessage.setLong("enqueueCount", stats.getEnqueues().getCount());
                        statsMessage.setLong("dequeueCount", stats.getDequeues().getCount());
                        statsMessage.setLong("dispatchCount", stats.getDispatched().getCount());
                        statsMessage.setLong("expiredCount", stats.getExpired().getCount());
                        statsMessage.setLong("inflightCount", stats.getInflight().getCount());
                        statsMessage.setLong("messagesCached", stats.getMessagesCached().getCount());
                        statsMessage.setInt("memoryPercentUsage", dest.getMemoryUsage().getPercentUsage());
                        statsMessage.setLong("memoryUsage", dest.getMemoryUsage().getUsage());
                        statsMessage.setLong("memoryLimit", dest.getMemoryUsage().getLimit());
                        statsMessage.setDouble("averageEnqueueTime", stats.getProcessTime().getAverageTime());
                        statsMessage.setDouble("maxEnqueueTime", stats.getProcessTime().getMaxTime());
                        statsMessage.setDouble("minEnqueueTime", stats.getProcessTime().getMinTime());
                        statsMessage.setLong("consumerCount", stats.getConsumers().getCount());
                        statsMessage.setLong("producerCount", stats.getProducers().getCount());
                        statsMessage.setJMSCorrelationID(messageSend.getCorrelationId());
                        sendStats(producerExchange.getConnectionContext(), statsMessage, replyTo);
                    }
                }
                if(endListMessage){
                    ActiveMQMapMessage statsMessage = new ActiveMQMapMessage();
                    statsMessage.setJMSCorrelationID(messageSend.getCorrelationId());
                    sendStats(producerExchange.getConnectionContext(),statsMessage,replyTo);
                }


            } else if (subStats) {
                sendSubStats(producerExchange.getConnectionContext(), getBrokerView().getQueueSubscribers(), replyTo);
                sendSubStats(producerExchange.getConnectionContext(), getBrokerView().getTopicSubscribers(), replyTo);
            } else if (brokerStats) {


                if (messageSend.getProperties().containsKey(STATS_BROKER_RESET_HEADER)) {
                    getBrokerView().resetStatistics();
                }


                ActiveMQMapMessage statsMessage = new ActiveMQMapMessage();
                SystemUsage systemUsage = brokerService.getSystemUsage();
                DestinationStatistics stats = regionBroker.getDestinationStatistics();
                statsMessage.setString("brokerName", regionBroker.getBrokerName());
                statsMessage.setString("brokerId", regionBroker.getBrokerId().toString());
                statsMessage.setLong("size", stats.getMessages().getCount());
                statsMessage.setLong("enqueueCount", stats.getEnqueues().getCount());
                statsMessage.setLong("dequeueCount", stats.getDequeues().getCount());
                statsMessage.setLong("dispatchCount", stats.getDispatched().getCount());
                statsMessage.setLong("expiredCount", stats.getExpired().getCount());
                statsMessage.setLong("inflightCount", stats.getInflight().getCount());
                statsMessage.setLong("messagesCached", stats.getMessagesCached().getCount());
                statsMessage.setInt("memoryPercentUsage", systemUsage.getMemoryUsage().getPercentUsage());
                statsMessage.setLong("memoryUsage", systemUsage.getMemoryUsage().getUsage());
                statsMessage.setLong("memoryLimit", systemUsage.getMemoryUsage().getLimit());
                statsMessage.setInt("storePercentUsage", systemUsage.getStoreUsage().getPercentUsage());
                statsMessage.setLong("storeUsage", systemUsage.getStoreUsage().getUsage());
                statsMessage.setLong("storeLimit", systemUsage.getStoreUsage().getLimit());
                statsMessage.setInt("tempPercentUsage", systemUsage.getTempUsage().getPercentUsage());
                statsMessage.setLong("tempUsage", systemUsage.getTempUsage().getUsage());
                statsMessage.setLong("tempLimit", systemUsage.getTempUsage().getLimit());
                statsMessage.setDouble("averageEnqueueTime", stats.getProcessTime().getAverageTime());
                statsMessage.setDouble("maxEnqueueTime", stats.getProcessTime().getMaxTime());
                statsMessage.setDouble("minEnqueueTime", stats.getProcessTime().getMinTime());
                statsMessage.setLong("consumerCount", stats.getConsumers().getCount());
                statsMessage.setLong("producerCount", stats.getProducers().getCount());
                String answer = brokerService.getTransportConnectorURIsAsMap().get("tcp");
                answer = answer != null ? answer : "";
                statsMessage.setString("openwire", answer);
                answer = brokerService.getTransportConnectorURIsAsMap().get("stomp");
                answer = answer != null ? answer : "";
                statsMessage.setString("stomp", answer);
                answer = brokerService.getTransportConnectorURIsAsMap().get("ssl");
                answer = answer != null ? answer : "";
                statsMessage.setString("ssl", answer);
                answer = brokerService.getTransportConnectorURIsAsMap().get("stomp+ssl");
                answer = answer != null ? answer : "";
                statsMessage.setString("stomp+ssl", answer);
                URI uri = brokerService.getVmConnectorURI();
                answer = uri != null ? uri.toString() : "";
                statsMessage.setString("vm", answer);
                File file = brokerService.getDataDirectoryFile();
                answer = file != null ? file.getCanonicalPath() : "";
                statsMessage.setString("dataDirectory", answer);
                statsMessage.setJMSCorrelationID(messageSend.getCorrelationId());
                sendStats(producerExchange.getConnectionContext(), statsMessage, replyTo);
            } else {
                super.send(producerExchange, messageSend);
            }
        } else {

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        ActiveMQTextMessage m2 = new ActiveMQTextMessage();
        m2.setText("Test Message Payload.");
        producer.send(m2);


        ActiveMQMapMessage m3 = new ActiveMQMapMessage();
        m3.setString("text", "my message");
        producer.send(m3);


        Message m = consumer.receive(maxWait);
        assertNotNull(m);
        assertEquals(m1.getMessageId().toString(), m.getJMSMessageID());
        assertTrue(m instanceof ActiveMQObjectMessage);


        if (getDefaultPolicy() != null) {
            assertNull("object data cleared by reduceMemoryFootprint (and never marshalled as using mem persistence)",
                ((ActiveMQObjectMessage)m).getObject());
        }


        // verify no serialisation via vm transport
        assertEquals("writeObject called", 0, obj.getWriteObjectCalled());
        assertEquals("readObject called", 0, obj.getReadObjectCalled());
        assertEquals("readObjectNoData called", 0, obj.getReadObjectNoDataCalled());


        m = consumer.receive(maxWait);
        assertNotNull(m);
        assertEquals(m2.getMessageId().toString(), m.getJMSMessageID());
        assertTrue(m instanceof ActiveMQTextMessage);


        if (getDefaultPolicy() != null) {
            assertNull("text cleared by reduceMemoryFootprint (and never marshalled as using mem persistence)",
                ((ActiveMQTextMessage)m).getText());
        }


        m = consumer.receive(maxWait);
        assertNotNull(m);
        assertEquals(m3.getMessageId().toString(), m.getJMSMessageID());
        assertTrue(m instanceof ActiveMQMapMessage);


        if (getDefaultPolicy() != null) {
            assertNull("text cleared by reduceMemoryFootprint (and never marshalled as using mem persistence)",
                ((ActiveMQMapMessage)m).getStringProperty("text"));

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                headers.put(Stomp.Headers.TRANSFORMATION, Stomp.Transformations.JMS_MAP_XML.toString());
            } else if (headers.get(Stomp.Headers.TRANSFORMATION).equals(Stomp.Transformations.JMS_JSON.toString())) {
                headers.put(Stomp.Headers.TRANSFORMATION, Stomp.Transformations.JMS_MAP_JSON.toString());
            }


            ActiveMQMapMessage msg = (ActiveMQMapMessage) message.copy();
            command.setContent(marshall((Serializable)msg.getContentMap(),
                    headers.get(Stomp.Headers.TRANSFORMATION)).getBytes("UTF-8"));
            return command;
        } else if (message.getDataStructureType() == ActiveMQMessage.DATA_STRUCTURE_TYPE &&
                AdvisorySupport.ADIVSORY_MESSAGE_TYPE.equals(message.getType())) {

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