Example usage for org.springframework.amqp.support.converter MessageConversionException MessageConversionException

List of usage examples for org.springframework.amqp.support.converter MessageConversionException MessageConversionException

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Introduction

In this page you can find the example usage for org.springframework.amqp.support.converter MessageConversionException MessageConversionException.

Prototype

public MessageConversionException(String message)

Source Link

Usage

From source file:com.jbrisbin.vpc.jobsched.exe.ExeMessageConverter.java

public Message toMessage(Object object, MessageProperties props) throws MessageConversionException {
    if (object instanceof ExeMessage) {
        ExeMessage msg = (ExeMessage) object;
        return new Message(msg.getOutputBytes(), props);
    } else {/*from  w w w.j  av a 2s.com*/
        throw new MessageConversionException(
                "Cannot convert object " + String.valueOf(object) + " using " + getClass().toString());
    }
}

From source file:amqp.spring.converter.ContentTypeConverterFactory.java

@Override
protected Message createMessage(Object object, MessageProperties messageProperties) {
    String contentType = messageProperties.getContentType();
    MessageConverter converter = converters.get(contentType);
    if (converter == null) //Try to fall back
        converter = this.fallbackConverter;
    if (converter == null) //Can't even fall back, punt
        throw new MessageConversionException("Cannot find converter for content type of " + contentType);

    return converter.toMessage(object, messageProperties);
}

From source file:amqp.spring.converter.StringConverter.java

@Override
public Object fromMessage(Message message) throws MessageConversionException {
    MessageProperties messageProperties = message.getMessageProperties();
    if (messageProperties == null)
        throw new MessageConversionException("Cannot decode a message with no properties!");

    byte[] body = message.getBody();
    if (body == null)
        return null;

    String messageEncoding = messageProperties.getContentEncoding();
    if (messageEncoding == null)
        messageEncoding = this.encoding;

    String messageContentType = messageProperties.getContentType();
    if (this.contentType != null && !this.contentType.equalsIgnoreCase(messageContentType))
        throw new MessageConversionException("Cannot understand a message of type " + messageContentType);

    try {/*from  w  w  w.j  av a2 s .co m*/
        return new String(body, messageEncoding);
    } catch (UnsupportedEncodingException ex) {
        LOG.error("Cannot dencode strings as {}", this.encoding, ex);
        throw new MessageConversionException("Cannot dencode strings as " + this.encoding, ex);
    }
}

From source file:amqp.spring.converter.ContentTypeConverterFactory.java

@Override
public Object fromMessage(Message message) throws MessageConversionException {
    MessageProperties messageProperties = message.getMessageProperties();
    String contentType = messageProperties.getContentType();
    if (messageProperties == null)
        throw new MessageConversionException("Cannot decode a message with no properties!");

    MessageConverter converter = converters.get(contentType);
    if (converter == null) //Try to fall back
        converter = this.fallbackConverter;
    if (converter == null) //Can't even fall back, punt
        throw new MessageConversionException("Cannot find converter for content type of " + contentType);

    return converter.fromMessage(message);
}

From source file:amqp.spring.converter.XStreamConverter.java

@Override
public Object fromMessage(Message message) throws MessageConversionException {
    MessageProperties messageProperties = message.getMessageProperties();
    if (messageProperties == null)
        throw new MessageConversionException("Cannot decode a message with no properties!");

    byte[] body = message.getBody();
    if (body == null)
        return null;

    String messageEncoding = messageProperties.getContentEncoding();
    if (messageEncoding == null)
        messageEncoding = getEncoding();

    String contentType = messageProperties.getContentType();
    if (!MessageProperties.CONTENT_TYPE_JSON.equalsIgnoreCase(contentType))
        throw new MessageConversionException("Cannot understand a message of type " + contentType);

    try {//from w w  w.  j a va2 s . c o m
        ByteArrayInputStream inStream = new ByteArrayInputStream(body);
        StaxReader reader = new StaxReader(new QNameMap(),
                this.inputFactory.createXMLStreamReader(inStream, messageEncoding));
        return this.objectMapper.unmarshal(reader);
    } catch (XMLStreamException ex) {
        String typeId = (String) messageProperties.getHeaders()
                .get(DefaultClassMapper.DEFAULT_CLASSID_FIELD_NAME);
        LOG.error("XMLStreamException trying to unmarshal message of type {}", typeId, ex);
        throw new MessageConversionException("Could not unmarshal message of type " + typeId, ex);
    } catch (XStreamException ex) {
        //For some reason messages appear to be getting eaten at this stage... very nasty when you try to troubleshoot.
        String typeId = (String) messageProperties.getHeaders()
                .get(DefaultClassMapper.DEFAULT_CLASSID_FIELD_NAME);
        LOG.error("XStreamException trying to unmarshal message of type {}", typeId, ex);
        throw new MessageConversionException("Could not unmarshal message of type " + typeId, ex);
    }
}

From source file:org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.java

/**
 * Execute the specified listener, committing or rolling back the transaction afterwards (if necessary).
 *
 * @param channel the Rabbit Channel to operate on
 * @param messageIn the received Rabbit Message
 * @throws Exception Any Exception.//from ww  w .  j a  v  a2 s .co  m
 *
 * @see #invokeListener
 * @see #handleListenerException
 */
protected void executeListener(Channel channel, Message messageIn) throws Exception {
    if (!isRunning()) {
        if (logger.isWarnEnabled()) {
            logger.warn(
                    "Rejecting received message because the listener container has been stopped: " + messageIn);
        }
        throw new MessageRejectedWhileStoppingException();
    }
    try {
        Message message = messageIn;
        if (this.afterReceivePostProcessors != null) {
            for (MessagePostProcessor processor : this.afterReceivePostProcessors) {
                message = processor.postProcessMessage(message);
            }
        }
        Object batchFormat = message.getMessageProperties().getHeaders()
                .get(MessageProperties.SPRING_BATCH_FORMAT);
        if (MessageProperties.BATCH_FORMAT_LENGTH_HEADER4.equals(batchFormat) && this.deBatchingEnabled) {
            ByteBuffer byteBuffer = ByteBuffer.wrap(message.getBody());
            MessageProperties messageProperties = message.getMessageProperties();
            messageProperties.getHeaders().remove(MessageProperties.SPRING_BATCH_FORMAT);
            while (byteBuffer.hasRemaining()) {
                int length = byteBuffer.getInt();
                if (length < 0 || length > byteBuffer.remaining()) {
                    throw new ListenerExecutionFailedException("Bad batched message received",
                            new MessageConversionException(
                                    "Insufficient batch data at offset " + byteBuffer.position()),
                            message);
                }
                byte[] body = new byte[length];
                byteBuffer.get(body);
                messageProperties.setContentLength(length);
                // Caveat - shared MessageProperties.
                Message fragment = new Message(body, messageProperties);
                invokeListener(channel, fragment);
            }
        } else {
            invokeListener(channel, message);
        }
    } catch (Exception ex) {
        if (messageIn.getMessageProperties().isFinalRetryForMessageWithNoId()) {
            if (this.statefulRetryFatalWithNullMessageId) {
                throw new FatalListenerExecutionException(
                        "Illegal null id in message. Failed to manage retry for message: " + messageIn);
            } else {
                throw new ListenerExecutionFailedException("Cannot retry message more than once without an ID",
                        new AmqpRejectAndDontRequeueException("Not retryable; rejecting and not requeuing", ex),
                        messageIn);
            }
        }
        handleListenerException(ex);
        throw ex;
    }
}

From source file:org.springframework.amqp.rabbit.listener.adapter.AbstractAdaptableMessageListener.java

/**
 * Build a Rabbit message to be sent as response based on the given result object.
 * @param channel the Rabbit Channel to operate on
 * @param result the content of the message, as returned from the listener method
 * @return the Rabbit <code>Message</code> (never <code>null</code>)
 * @throws Exception if thrown by Rabbit API methods
 * @see #setMessageConverter/*from  w ww. jav  a2 s  . c  o  m*/
 */
protected Message buildMessage(Channel channel, Object result) throws Exception {
    MessageConverter converter = getMessageConverter();
    if (converter != null && !(result instanceof Message)) {
        return converter.toMessage(result, new MessageProperties());
    } else {
        if (!(result instanceof Message)) {
            throw new MessageConversionException(
                    "No MessageConverter specified - cannot handle message [" + result + "]");
        }
        return (Message) result;
    }
}

From source file:org.springframework.amqp.rabbit.listener.adapter.MessageListenerAdapter.java

/**
 * Build a Rabbit message to be sent as response based on the given result object.
 * @param session the Rabbit Channel to operate on
 * @param result the content of the message, as returned from the listener method
 * @return the Rabbit <code>Message</code> (never <code>null</code>)
 * @throws Exception if thrown by Rabbit API methods
 * @see #setMessageConverter/*from www.j a v a  2  s  .co  m*/
 */
protected Message buildMessage(Channel session, Object result) throws Exception {
    MessageConverter converter = getMessageConverter();
    if (converter != null) {
        return converter.toMessage(result, new MessageProperties());
    } else {
        if (!(result instanceof Message)) {
            throw new MessageConversionException(
                    "No MessageConverter specified - cannot handle message [" + result + "]");
        }
        return (Message) result;
    }
}

From source file:org.springframework.amqp.rabbit.listener.DirectMessageListenerContainerIntegrationTests.java

@Test
public void testErrorHandler() throws Exception {
    brokerRunning.deleteQueues(Q1);//  w  w w. j  a  v a  2s .  c om
    Queue q1 = new Queue(Q1, true, false, false, new ArgumentBuilder().put("x-dead-letter-exchange", "")
            .put("x-dead-letter-routing-key", DLQ1).get());
    CachingConnectionFactory cf = new CachingConnectionFactory("localhost");
    RabbitAdmin admin = new RabbitAdmin(cf);
    admin.declareQueue(q1);
    DirectMessageListenerContainer container = new DirectMessageListenerContainer(cf);
    container.setQueueNames(Q1);
    container.setConsumersPerQueue(2);
    final AtomicReference<Channel> channel = new AtomicReference<>();
    container.setMessageListener((ChannelAwareMessageListener) (m, c) -> {
        channel.set(c);
        throw new MessageConversionException(
                "intended - should be wrapped in an AmqpRejectAndDontRequeueException");
    });
    container.setBeanName("errorHandler");
    container.setConsumerTagStrategy(new Tag());
    container.afterPropertiesSet();
    container.start();
    RabbitTemplate template = new RabbitTemplate(cf);
    template.convertAndSend(Q1, "foo");
    assertNotNull(template.receive(DLQ1, 10000));
    container.stop();
    assertTrue(consumersOnQueue(Q1, 0));
    assertTrue(consumersOnQueue(Q2, 0));
    assertTrue(activeConsumerCount(container, 0));
    assertEquals(0, TestUtils.getPropertyValue(container, "consumersByQueue", MultiValueMap.class).size());
    assertFalse(channel.get().isOpen());
    cf.destroy();
}

From source file:org.springframework.amqp.rabbit.listener.DirectMessageListenerContainerTests.java

@Test
public void testErrorHandler() throws Exception {
    brokerRunning.getAdmin().deleteQueue(Q1);
    Queue q1 = new Queue(Q1, true, false, false, new ArgumentBuilder().put("x-dead-letter-exchange", "")
            .put("x-dead-letter-routing-key", DLQ1).get());
    brokerRunning.getAdmin().declareQueue(q1);
    CachingConnectionFactory cf = new CachingConnectionFactory("localhost");
    DirectMessageListenerContainer container = new DirectMessageListenerContainer(cf);
    container.setQueueNames(Q1);//ww w  .  j a v a2  s  .c  om
    container.setConsumersPerQueue(2);
    final AtomicReference<Channel> channel = new AtomicReference<>();
    container.setMessageListener((ChannelAwareMessageListener) (m, c) -> {
        channel.set(c);
        throw new MessageConversionException(
                "intended - should be wrapped in an AmqpRejectAndDontRequeueException");
    });
    container.setBeanName("errorHandler");
    container.setConsumerTagStrategy(new Tag());
    container.afterPropertiesSet();
    container.start();
    RabbitTemplate template = new RabbitTemplate(cf);
    template.convertAndSend(Q1, "foo");
    assertNotNull(template.receive(DLQ1, 10000));
    container.stop();
    assertTrue(consumersOnQueue(Q1, 0));
    assertTrue(consumersOnQueue(Q2, 0));
    assertTrue(activeConsumerCount(container, 0));
    assertEquals(0, TestUtils.getPropertyValue(container, "consumersByQueue", MultiValueMap.class).size());
    assertFalse(channel.get().isOpen());
    cf.destroy();
}