Examples with MapMessage javax.jms.MapMessage used on opensource projects

Example 21 with MapMessage

use of javax.jms.MapMessage in project ACS by ACS-Community.

the class HelloWorld method publishToHelloWorld.

/**
   * Preapares the message and publishes it.
   */
public void publishToHelloWorld() {
    try {
        MapMessage message = pub.createMapMessage();
        message.setString(TEXT_MAP_FIELD, MSG_TXT);
        message.setLong(TIMESTAMP_MAP_FIELD, System.currentTimeMillis());
        pub.publish(HELLO_TOPIC, message);
    } catch (Exception e) {
        cat.info("Exception caught", e);
    }
}

Example 22 with MapMessage

use of javax.jms.MapMessage in project ACS by ACS-Community.

the class DefaultPublisherImpl method createMapMessage.

/**
   * Method createMapMessage
   *
   *
   * @return MapMessage
   *
   * @throws JMSException
   *
   */
public MapMessage createMapMessage() throws JMSException {
    if (closed) {
        throw (new JMSException("Publisher object has been closed"));
    }
    MapMessage message = null;
    message = session.createMapMessage();
    return message;
}

Example 23 with MapMessage

use of javax.jms.MapMessage in project camel by apache.

the class JmsBinding method createJmsMessageForType.

/**
     * 
     * Create the {@link Message} 
     * 
     * @return jmsMessage or null if the mapping was not successfully
     */
protected Message createJmsMessageForType(Exchange exchange, Object body, Map<String, Object> headers, Session session, CamelContext context, JmsMessageType type) throws JMSException {
    switch(type) {
        case Text:
            {
                TextMessage message = session.createTextMessage();
                if (body != null) {
                    String payload = context.getTypeConverter().convertTo(String.class, exchange, body);
                    message.setText(payload);
                }
                return message;
            }
        case Bytes:
            {
                BytesMessage message = session.createBytesMessage();
                if (body != null) {
                    byte[] payload = context.getTypeConverter().convertTo(byte[].class, exchange, body);
                    message.writeBytes(payload);
                }
                return message;
            }
        case Map:
            {
                MapMessage message = session.createMapMessage();
                if (body != null) {
                    Map<?, ?> payload = context.getTypeConverter().convertTo(Map.class, exchange, body);
                    populateMapMessage(message, payload, context);
                }
                return message;
            }
        case Object:
            ObjectMessage message = session.createObjectMessage();
            if (body != null) {
                try {
                    Serializable payload = context.getTypeConverter().mandatoryConvertTo(Serializable.class, exchange, body);
                    message.setObject(payload);
                } catch (NoTypeConversionAvailableException e) {
                    // cannot convert to serializable then thrown an exception to avoid sending a null message
                    JMSException cause = new MessageFormatException(e.getMessage());
                    cause.initCause(e);
                    throw cause;
                }
            }
            return message;
        default:
            break;
    }
    return null;
}

Example 24 with MapMessage

use of javax.jms.MapMessage in project camel by apache.

the class JmsBinding method makeJmsMessage.

/**
     * Creates a JMS message from the Camel exchange and message
     *
     * @param exchange the current exchange
     * @param camelMessage the body to make a javax.jms.Message as
     * @param session the JMS session used to create the message
     * @param cause optional exception occurred that should be sent as reply instead of a regular body
     * @return a newly created JMS Message instance containing the
     * @throws JMSException if the message could not be created
     */
public Message makeJmsMessage(Exchange exchange, org.apache.camel.Message camelMessage, Session session, Exception cause) throws JMSException {
    Message answer = null;
    boolean alwaysCopy = endpoint != null && endpoint.getConfiguration().isAlwaysCopyMessage();
    boolean force = endpoint != null && endpoint.getConfiguration().isForceSendOriginalMessage();
    if (!alwaysCopy && camelMessage instanceof JmsMessage) {
        JmsMessage jmsMessage = (JmsMessage) camelMessage;
        if (!jmsMessage.shouldCreateNewMessage() || force) {
            answer = jmsMessage.getJmsMessage();
            if (!force) {
                // answer must match endpoint type
                JmsMessageType type = endpoint != null ? endpoint.getConfiguration().getJmsMessageType() : null;
                if (type != null && answer != null) {
                    if (type == JmsMessageType.Text) {
                        answer = answer instanceof TextMessage ? answer : null;
                    } else if (type == JmsMessageType.Bytes) {
                        answer = answer instanceof BytesMessage ? answer : null;
                    } else if (type == JmsMessageType.Map) {
                        answer = answer instanceof MapMessage ? answer : null;
                    } else if (type == JmsMessageType.Object) {
                        answer = answer instanceof ObjectMessage ? answer : null;
                    } else if (type == JmsMessageType.Stream) {
                        answer = answer instanceof StreamMessage ? answer : null;
                    }
                }
            }
        }
    }
    if (answer == null) {
        if (cause != null) {
            // an exception occurred so send it as response
            LOG.debug("Will create JmsMessage with caused exception: {}", cause);
            // create jms message containing the caused exception
            answer = createJmsMessage(cause, session);
        } else {
            ObjectHelper.notNull(camelMessage, "message");
            // create regular jms message using the camel message body
            answer = createJmsMessage(exchange, camelMessage, session, exchange.getContext());
            appendJmsProperties(answer, exchange, camelMessage);
        }
    }
    if (answer != null && messageCreatedStrategy != null) {
        messageCreatedStrategy.onMessageCreated(answer, session, exchange, null);
    }
    return answer;
}

Example 25 with MapMessage

use of javax.jms.MapMessage in project camel by apache.

the class JmsBinding method extractBodyFromJms.

/**
     * Extracts the body from the JMS message
     *
     * @param exchange the exchange
     * @param message  the message to extract its body
     * @return the body, can be <tt>null</tt>
     */
public Object extractBodyFromJms(Exchange exchange, Message message) {
    try {
        // based on message type
        if (endpoint != null && endpoint.getMessageConverter() != null) {
            if (LOG.isTraceEnabled()) {
                LOG.trace("Extracting body using a custom MessageConverter: {} from JMS message: {}", endpoint.getMessageConverter(), message);
            }
            return endpoint.getMessageConverter().fromMessage(message);
        }
        // if we are configured to not map the jms message then return it as body
        if (endpoint != null && !endpoint.getConfiguration().isMapJmsMessage()) {
            LOG.trace("Option map JMS message is false so using JMS message as body: {}", message);
            return message;
        }
        if (message instanceof ObjectMessage) {
            LOG.trace("Extracting body as a ObjectMessage from JMS message: {}", message);
            ObjectMessage objectMessage = (ObjectMessage) message;
            Object payload = objectMessage.getObject();
            if (payload instanceof DefaultExchangeHolder) {
                DefaultExchangeHolder holder = (DefaultExchangeHolder) payload;
                DefaultExchangeHolder.unmarshal(exchange, holder);
                return exchange.getIn().getBody();
            } else {
                return objectMessage.getObject();
            }
        } else if (message instanceof TextMessage) {
            LOG.trace("Extracting body as a TextMessage from JMS message: {}", message);
            TextMessage textMessage = (TextMessage) message;
            return textMessage.getText();
        } else if (message instanceof MapMessage) {
            LOG.trace("Extracting body as a MapMessage from JMS message: {}", message);
            return createMapFromMapMessage((MapMessage) message);
        } else if (message instanceof BytesMessage) {
            LOG.trace("Extracting body as a BytesMessage from JMS message: {}", message);
            return createByteArrayFromBytesMessage((BytesMessage) message);
        } else if (message instanceof StreamMessage) {
            LOG.trace("Extracting body as a StreamMessage from JMS message: {}", message);
            return message;
        } else {
            return null;
        }
    } catch (JMSException e) {
        throw new RuntimeCamelException("Failed to extract body due to: " + e + ". Message: " + message, e);
    }
}