Examples of org.activemq.message.ActiveMQObjectMessage

org.activemq.message.ActiveMQObjectMessage
An ObjectMessage object is used to send a message that contains a serializable object in the Java programming language ("Java object"). It inherits from the Message interface and adds a body containing a single reference to an object. Only Serializable Java objects can be used.

If a collection of Java objects must be sent, one of the Collection classes provided since JDK 1.2 can be used.

When a client receives an ObjectMessage, 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. @see javax.jms.Session#createObjectMessage() @see javax.jms.Session#createObjectMessage(Serializable) @see javax.jms.BytesMessage @see javax.jms.MapMessage @see javax.jms.Message @see javax.jms.StreamMessage @see javax.jms.TextMessage

    if (dest != null && dest.isTemporary()) {
      TempDestinationAdvisoryEvent event = (TempDestinationAdvisoryEvent) tempDestinationMap
          .remove(dest);
      if (event != null) {
        event.setStarted(false);
        ActiveMQObjectMessage msg = new ActiveMQObjectMessage();
        msg.setObject(event);
        msg.setJMSDeliveryMode(DeliveryMode.NON_PERSISTENT);
        msg.setJMSDestination(dest.getTopicForTempAdvisory());
        msg.setJMSMessageID("ID:" + dest.getPhysicalName()
            + " .stopped");
        this.syncSendPacket(msg);
      }
    }
  }

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     * @param destination
     * @return create ActiveMQMessage
     */
    private ActiveMQMessage generateAdvisoryMessage(final ConsumerInfo advisoryTarget, final Packet payload,
            final ActiveMQDestination destination) {
        ActiveMQObjectMessage advisoryMsg = null;
        try {
            advisoryMsg = new ActiveMQObjectMessage();
            advisoryMsg.setJMSMessageID(idGen.generateId());
            advisoryMsg.setJMSDestination(destination);
            advisoryMsg.setExternalMessageId(true);
            advisoryMsg.setJMSDeliveryMode(DeliveryMode.NON_PERSISTENT);
            advisoryMsg.setObject((Serializable) payload);
            if (advisoryTarget != null) {
                advisoryMsg.setConsumerNos(new int[]{advisoryTarget.getConsumerNo()});
            }
        }
        catch (JMSException e) {
            advisoryMsg = null;
            log.warn("caught an exception generating an advisory", e);

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     * @return an ActiveMQObjectMessage
     * @throws JMSException if the JMS provider fails to create this message due to some internal error.
     */
    public ObjectMessage createObjectMessage() throws JMSException {
        checkClosed();
        return new ActiveMQObjectMessage();
    }

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     * @return an ActiveMQObjectMessage
     * @throws JMSException if the JMS provider fails to create this message due to some internal error.
     */
    public ObjectMessage createObjectMessage(Serializable object) throws JMSException {
        checkClosed();
        ActiveMQObjectMessage msg = new ActiveMQObjectMessage();
        msg.setObject(object);
        return msg;
    }

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     * @param destination
     * @return create ActiveMQMessage
     */
    private ActiveMQMessage generateAdvisoryMessage(final ConsumerInfo advisoryTarget, final Packet payload,
            final ActiveMQDestination destination) {
        ActiveMQObjectMessage advisoryMsg = null;
        try {
            advisoryMsg = new ActiveMQObjectMessage();
            advisoryMsg.setJMSMessageID(idGen.generateId());
            advisoryMsg.setJMSDestination(destination);
            advisoryMsg.setExternalMessageId(true);
            advisoryMsg.setDeliveryCount(DeliveryMode.NON_PERSISTENT);
            advisoryMsg.setObject((Serializable) payload);
            if (advisoryTarget != null) {
                advisoryMsg.setConsumerNos(new int[]{advisoryTarget.getConsumerNo()});
            }
        }
        catch (JMSException e) {
            advisoryMsg = null;
            log.warn("caught an exception generating an advisory", e);

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            //notify the old service has stopped
            this.serviceMessage.setBooleanProperty(ALIVE_TYPE, false);
            sendService();
        }
        this.serviceName = name;
        this.serviceMessage = new ActiveMQObjectMessage();
        this.serviceMessage.setJMSType(SERVICE_TYPE);
        this.serviceMessage.setStringProperty(SERVICE_NAME, name);
        this.serviceMessage.setStringProperty(CHANNEL_NAME, channelName);
        this.serviceMessage.setBooleanProperty(ALIVE_TYPE, true);
        this.serviceMessage.setObject((Serializable) details);

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    }


   
    private void processService(ActiveMQMessage message) throws JMSException {
        if (message != null) {
            ActiveMQObjectMessage objMsg = (ActiveMQObjectMessage) message;
            String name = objMsg.getStringProperty(SERVICE_NAME);


            if (log.isDebugEnabled()) {
                log.debug("Service message received for: " + name);
            }
            addService(name);
            ActiveMQObjectMessage oldMsg = (ActiveMQObjectMessage) services.get(name);
            services.put(name, objMsg);
            if (oldMsg == null) {
                fireServiceStarted(objMsg);
                //send out that we are here!
                sendService();

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        activeTime.set(timestamp);
    }


    private void removeService(String name) throws JMSException {
        keepAliveMap.remove(name);
        ActiveMQObjectMessage message = (ActiveMQObjectMessage) services.remove(name);
        if (message != null) {
            fireServiceStopped(message);
        }
    }

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        if (dest != null && dest.isTemporary()) {
            TempDestinationAdvisoryEvent event = (TempDestinationAdvisoryEvent) tempDestinationMap.get(dest);
            if (event == null) {
                event = new TempDestinationAdvisoryEvent(dest, true);
                tempDestinationMap.put(dest, event);
                ActiveMQObjectMessage msg = new ActiveMQObjectMessage();
                msg.setObject(event);
                msg.setJMSDeliveryMode(DeliveryMode.NON_PERSISTENT);
                String destName = ActiveMQDestination.TEMP_DESTINATION_ADVISORY_PREFIX + dest.getPhysicalName();
                ActiveMQDestination target = ActiveMQDestination.createDestination(dest.getDestinationType(), destName);
                msg.setJMSDestination(target);
                msg.setJMSMessageID("ID:"+ dest.getPhysicalName() + " .started");
                this.syncSendPacket(msg);
            }
        }
    }

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    protected void stopTemporaryDestination(ActiveMQDestination dest) throws JMSException{
        if (dest != null && dest.isTemporary()) {
            TempDestinationAdvisoryEvent event = (TempDestinationAdvisoryEvent) tempDestinationMap.remove(dest);
            if (event != null) {
                event.setStarted(false);
                ActiveMQObjectMessage msg = new ActiveMQObjectMessage();
                msg.setObject(event);
                msg.setJMSDeliveryMode(DeliveryMode.NON_PERSISTENT);
                String destName = ActiveMQDestination.TEMP_DESTINATION_ADVISORY_PREFIX + dest.getPhysicalName();
                ActiveMQDestination target = ActiveMQDestination.createDestination(dest.getDestinationType(), destName);
                msg.setJMSDestination(target);
                msg.setJMSMessageID("ID:"+ dest.getPhysicalName() + " .stopped");
                this.syncSendPacket(msg);
            }
        }
    }

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org.activemq.ActiveMQConnection

org.activemq.ActiveMQSession

org.activemq.broker.impl.AdvisorySupport

org.activemq.io.impl.ActiveMQObjectMessageReader

org.activemq.io.impl.ActiveMQObjectMessageReaderTest

org.activemq.test.WireFormatTestSupport

org.activemq.transport.multicast.MulticastDiscoveryAgent

javax.jms.JMSException

java.io.IOException

javax.jms.MessageFormatException

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