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

Example 86 with BytesMessage

use of javax.jms.BytesMessage in project zipkin by openzipkin.

the class ActiveMQSpanConsumer method onMessage.

@Override
public void onMessage(Message message) {
    metrics.incrementMessages();
    // TODO: consider how to reuse buffers here
    byte[] serialized;
    try {
        if (message instanceof BytesMessage) {
            BytesMessage bytesMessage = (BytesMessage) message;
            serialized = new byte[(int) bytesMessage.getBodyLength()];
            bytesMessage.readBytes(serialized);
        } else if (message instanceof TextMessage) {
            String text = ((TextMessage) message).getText();
            serialized = text.getBytes(UTF_8);
        } else {
            metrics.incrementMessagesDropped();
            return;
        }
    } catch (Exception e) {
        metrics.incrementMessagesDropped();
        return;
    }
    metrics.incrementBytes(serialized.length);
    // lenient on empty messages
    if (serialized.length == 0)
        return;
    collector.acceptSpans(serialized, NOOP);
}

Example 87 with BytesMessage

use of javax.jms.BytesMessage in project qpid by apache.

the class AMQPMessage method getList.

/**
 * JMS QMF returns amqp/list types as a BytesMessage this method decodes that into a java.util.List
 * <p>
 * Taken from Gordon Sim's initial JMS QMF Example using the BBDecoder
 * <p>
 * Trivia: This block of code from Gordon Sim is the seed that spawned the whole of this Java QMF2 API
 * implementation - cheers Gordon.
 *
 * @param message amqp/list encoded JMS Message
 * @return a java.util.List decoded from Message
 */
@SuppressWarnings("unchecked")
public static <T> List<T> getList(final Message message) throws JMSException {
    if (message == null) {
        throw new MessageFormatException("Attempting to do AMQPMessage.getList() on null Message");
    } else if (message instanceof BytesMessage) {
        BytesMessage msg = (BytesMessage) message;
        // only handles responses up to 2^31-1 bytes long
        byte[] data = new byte[(int) msg.getBodyLength()];
        msg.readBytes(data);
        BBDecoder decoder = new BBDecoder();
        decoder.init(ByteBuffer.wrap(data));
        return (List<T>) decoder.readList();
    } else if (message instanceof MapMessage) {
        /*
             * In Qpid version 0.20 instead of exposing amqp/list as a BytesMessage as above rather it is exposed
             * as a MapMessage!!??? the Object Keys are the indices into the List. We create a java.util.List
             * out of this by iterating through the getMapNames() Enumeration and copying the Objects into the List.
             * This amount of copying doesn't feel healthy and we can't even work out the capacity for the List
             * a priori, but I'm not sure of a better way at present. I can't say I much like how amqp/list or indeed
             * amqp/map are currently encoded. I'd *much* prefer to see them exposed as JMS ObjectMessage.
             */
        MapMessage msg = (MapMessage) message;
        // Initial capacity of 50, can we better estimate this?
        List resultList = new ArrayList(50);
        for (Enumeration e = msg.getMapNames(); e.hasMoreElements(); ) {
            String key = (String) e.nextElement();
            resultList.add(msg.getObject(key));
        }
        return resultList;
    } else {
        return null;
    }
}

Example 88 with BytesMessage

use of javax.jms.BytesMessage in project qpid by apache.

the class AMQPMessage method createListMessage.

/**
 * Creates an amqp/list encoded Message out of a BytesMessage.
 * <p>
 * This is somewhat of a dirty hack that needs to be monitored as qpid versions change.
 * <p>
 * Unfortunately there's no "clean" way to encode or decode amqp/list messages via the JMS API.
 *
 * @param session used to create the JMS Message
 * @return an amqp/list encoded JMS Message
 */
public static Message createListMessage(final Session session) throws JMSException {
    BytesMessage message = session.createBytesMessage();
    setContentType(message, "amqp/list");
    return message;
}

Example 89 with BytesMessage

use of javax.jms.BytesMessage 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 90 with BytesMessage

use of javax.jms.BytesMessage 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;
}