Examples of org.mule.api.MuleEvent

org.mule.api.MuleEvent
MuleEvent represents any data event occuring in the Mule environment. All data sent or received within the mule environment will be passed between components as an MuleEvent.

The MuleEvent holds a MuleMessage payload and provides helper methods for obtaining the data in a format that the receiving Mule component understands. The event can also maintain any number of properties that can be set and retrieved by Mule components. @see MuleMessage

    @Override
    protected List<MuleMessage> getMessages() throws Exception
    {
        if (isReceiveMessagesInTransaction())
        {
            MuleEvent message = getFirstMessage();
            if (message == null)
            {
                return null;
            }
            
            List<MuleMessage> messages = new ArrayList<MuleMessage>(1);
            messages.add(message.getMessage());
            return messages;
        }
        else
        {
            return getFirstMessages();

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        List<MuleMessage> messages = new LinkedList<MuleMessage>();


        int batchSize = getBatchSize(queue.size());


        // try to get the first event off the queue
        MuleEvent message = (MuleEvent) queue.poll(connector.getQueueTimeout());


        if (message != null)
        {
            // keep first dequeued event
            messages.add(message.getMessage());


            // keep batching if more events are available
            for (int i = 0; i < batchSize && message != null; i++)
            {
                message = (MuleEvent)queue.poll(0);
                if (message != null)
                {
                    messages.add(message.getMessage());
                }
            }
        }


        // let our workManager handle the batch of events

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            {
                postMethod.setRequestEntity(new ByteArrayRequestEntity((byte[]) src, outboundMimeType));
            }
            else if (src instanceof OutputHandler)
            {
                final MuleEvent event = RequestContext.getEvent();
                postMethod.setRequestEntity(new StreamPayloadRequestEntity((OutputHandler) src, event));
            }
            else
            {
                final byte[] buffer = SerializationUtils.serialize((Serializable) src);

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            // for MULE_USER header. Filter out other headers like "soapMethods" and
            // MuleProperties.MULE_METHOD_PROPERTY and "soapAction"
            // and also filter out any http related header
            messageToRoute.addProperties(AxisCleanAndAddProperties.cleanAndAdd(RequestContext.getEventContext()));


            MuleEvent event = receiver.routeMessage(messageToRoute);
            MuleMessage message = event == null ? null : event.getMessage();


            if (message != null)
            {
                ExceptionPayload wsException = message.getExceptionPayload();

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                }
                return null;
            }
            else
            {
                MuleEvent event = null;
                if (logger.isDebugEnabled())
                {
                    logger.debug("Waiting for a message on " + endpoint.getEndpointURI().getAddress());
                }
                try
                {
                    event = (MuleEvent) queue.poll(timeout);
                }
                catch (InterruptedException e)
                {
                    logger.error("Failed to receive message from queue: " + endpoint.getEndpointURI());
                }
                if (event != null)
                {
                    //The message will contain old thread information, we need to reset it
                    if(event.getMessage() instanceof ThreadSafeAccess)
                    {
                        ((ThreadSafeAccess) event.getMessage()).resetAccessControl();
                    }
                    if (logger.isDebugEnabled())
                    {
                        logger.debug("Message received: " + event);
                    }
                    return event.getMessage();
                }
                else
                {
                    if (logger.isDebugEnabled())
                    {

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        message2.setCorrelationId(message1.getUniqueId());
        message3.setCorrelationId(message1.getUniqueId());
        message1.setCorrelationGroupSize(3);


        InboundEndpoint endpoint = MuleTestUtils.getTestInboundEndpoint(MessageExchangePattern.ONE_WAY, muleContext);
        MuleEvent event1 = new DefaultMuleEvent(message1, endpoint, session);
        MuleEvent event2 = new DefaultMuleEvent(message2, endpoint, session);
        MuleEvent event3 = new DefaultMuleEvent(message3, endpoint, session);


        assertNull(router.process(event1));
        assertNull(router.process(event2));
        MuleEvent resultEvent = router.process(event3);
        assertNotNull(resultEvent);
        MuleMessage resultMessage = resultEvent.getMessage();
        assertNotNull(resultMessage);
        List<String> payload = (List<String>)resultMessage.getPayload();
        assertEquals(3, payload.size());
        assertEquals("test event A", payload.get(0));
        assertEquals("test event B", payload.get(1));

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    public void testArrayArg() throws MuleException, Exception
    {
        invoker.setMethodName("testArrayArg");
        invoker.setArguments(Collections.singletonList(new String[]{"#[string:1]", "#[string:2]"}));
        invoker.initialise();
        MuleEvent result = invoker.process(getTestEvent(""));
        assertEquals(String[].class, result.getMessage().getPayload().getClass());
        assertEquals("1", ((String[]) result.getMessage().getPayload())[0]);
        assertEquals("2", ((String[]) result.getMessage().getPayload())[1]);
    }

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    public void testListArg() throws MuleException, Exception
    {
        invoker.setMethodName("testListArg");
        invoker.setArguments(Collections.singletonList(Collections.singletonList("#[string:1]")));
        invoker.initialise();
        MuleEvent result = invoker.process(getTestEvent(""));
        assertTrue(List.class.isAssignableFrom(result.getMessage().getPayload().getClass()));
        assertEquals("1", ((List) result.getMessage().getPayload()).get(0));
    }

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    protected abstract EventCorrelatorCallback getCorrelatorCallback(MuleContext muleContext);


    public MuleEvent process(MuleEvent event) throws MuleException
    {
        MuleEvent result = eventCorrelator.process(event);
        if (result == null)
        {
            return null;
        }
        return processNext(result);

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    {
        invoker.setMethodName("testListArg");
        invoker.setArguments(Collections.singletonList(Collections.singletonList(Collections.singletonMap(
            "#[string:key]", "#[string:val]"))));
        invoker.initialise();
        MuleEvent result = invoker.process(getTestEvent(""));
        assertTrue(List.class.isAssignableFrom(result.getMessage().getPayload().getClass()));
        assertEquals("val", ((Map) ((List) result.getMessage().getPayload()).get(0)).get("key"));
    }

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