Examples of org.mule.api.transport.MessageReceiver

org.mule.api.transport.MessageReceiver
MessageReceiver is used to receive data from an external system. Typically an implementation of this interface will also implement the listener interface for the external system. For example to listen to a JMS destination the developer would also implement javax.jms.MessageListener. The endpoint (which creates the MessageReceiver) will then register the receiver with the JMS server. Where a listener interface is not availiable the derived MessageReceiver will implement the code necessary to receive data from the external system. For example, the file endpoint will poll a specified directory for its data.

        endpoint.getTransactionConfig().setFactory(new XaTransactionFactory());
        
        TransportServiceDescriptor serviceDescriptor = connector.getServiceDescriptor();


        // see if we get the overridden message receiver
        MessageReceiver receiver = serviceDescriptor.createMessageReceiver(connector, 
            getTestService(), endpoint);
        assertEquals(TestMessageReceiver.class, receiver.getClass());        
    }

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        if(StringUtils.EMPTY.equals(key))
        {
            key = httpServletRequest.getContextPath();
        }


        MessageReceiver receiver = (MessageReceiver)receivers.get(key);
        if (receiver == null)
        {
            receiver = HttpMessageReceiver.findReceiverByStem(receivers, key);
        }

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        try
        {
            final Continuation continuation = ContinuationSupport.getContinuation(request, mutex);
            synchronized (mutex)
            {
                MessageReceiver receiver = getReceiverForURI(request);


                MuleMessage requestMessage = receiver.createMuleMessage(request);
                requestMessage.setOutboundProperty(HttpConnector.HTTP_METHOD_PROPERTY, request.getMethod());


                //This will allow Mule to continue the response once the service has do its processing
                requestMessage.setReplyTo(continuation);
                setupRequestMessage(request, requestMessage, receiver);

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        if (logger.isDebugEnabled())
        {
            logger.debug("Looking up vm receiver for address: " + endpointUri.toString());
        }


        MessageReceiver receiver;
        // If we have an exact match, use it
        receiver = receivers.get(endpointUri.getAddress());
        if (receiver != null)
        {
            if (logger.isDebugEnabled())
            {
                logger.debug("Found exact receiver match on endpointUri: " + endpointUri);
            }
            return receiver;
        }


        // otherwise check each one against a wildcard match
        for (Iterator iterator = receivers.values().iterator(); iterator.hasNext();)
        {
            receiver = (MessageReceiver)iterator.next();
            String filterAddress = receiver.getEndpointURI().getAddress();
            WildcardFilter filter = new WildcardFilter(filterAddress);
            if (filter.accept(endpointUri.getAddress()))
            {
                InboundEndpoint endpoint = receiver.getEndpoint();
                EndpointURI newEndpointURI = new MuleEndpointURI(endpointUri, filterAddress);
                receiver.setEndpoint(new DynamicURIInboundEndpoint(endpoint, newEndpointURI));


                if (logger.isDebugEnabled())
                {
                    logger.debug("Found receiver match on endpointUri: " + receiver.getEndpointURI()
                                 + " against " + endpointUri);
                }
                return receiver;
            }
        }

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    }


     @Override
    protected MessageReceiver createReceiver(FlowConstruct flowConstruct, InboundEndpoint endpoint) throws Exception
    {
        MessageReceiver receiver = super.createReceiver(flowConstruct, endpoint);
        registerJettyEndpoint(receiver, endpoint);
        return receiver;
    }

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        FileConnector connector = (FileConnector) getConnector();
        connector.setPollingFrequency(POLLING_FREQUENCY);


        InboundEndpoint endpoint = getTestInboundEndpoint("simple");
        Service service = getTestService();
        MessageReceiver receiver = connector.createReceiver(service, endpoint);
        assertEquals("Connector's polling frequency must not be ignored.", POLLING_FREQUENCY,
                ((FileMessageReceiver) receiver).getFrequency());
    }

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        // Endpoint wants String-typed properties
        endpoint.getProperties().put(FileConnector.PROPERTY_POLLING_FREQUENCY, String.valueOf(POLLING_FREQUENCY_OVERRIDE));


        Service service = getTestService();
        MessageReceiver receiver = connector.createReceiver(service, endpoint);
        assertEquals("Polling frequency endpoint override must not be ignored.", POLLING_FREQUENCY_OVERRIDE,
                ((FileMessageReceiver) receiver).getFrequency());
    }

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                MuleMessage returnMessage = endpoint.request(to);
                writeResponse(httpServletResponse, returnMessage);
            }
            else
            {
                MessageReceiver receiver = getReceiverForURI(httpServletRequest);
            
                httpServletRequest.setAttribute(PAYLOAD_PARAMETER_NAME, payloadParameterName);
                
                MuleMessage message = receiver.createMuleMessage(httpServletRequest);
                MuleEvent event = receiver.routeMessage(message);
                MuleMessage returnMessage = event == null ? null : event.getMessage();
                writeResponse(httpServletResponse, returnMessage);
            }
        }
        catch (Exception e)

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    protected void doPost(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse)
        throws ServletException, IOException
    {
        try
        {
            MessageReceiver receiver = getReceiverForURI(httpServletRequest);


            httpServletRequest.setAttribute(PAYLOAD_PARAMETER_NAME, payloadParameterName);


            MuleMessage message = receiver.createMuleMessage(httpServletRequest, 
                receiver.getEndpoint().getEncoding());
            
            MuleEvent event = receiver.routeMessage(message);
            MuleMessage returnMessage = event == null ? null : event.getMessage();
            writeResponse(httpServletResponse, returnMessage);
        }
        catch (Exception e)
        {

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    protected void doPut(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse)
        throws ServletException, IOException
    {
        try
        {
            MessageReceiver receiver = getReceiverForURI(httpServletRequest);


            httpServletRequest.setAttribute(PAYLOAD_PARAMETER_NAME, payloadParameterName);


            MuleMessage message = receiver.createMuleMessage(httpServletRequest, 
                receiver.getEndpoint().getEncoding());
            receiver.routeMessage(message);


            httpServletResponse.setStatus(HttpServletResponse.SC_CREATED);
            if (feedback)
            {
                httpServletResponse.getWriter().write(
                    "Item was created at endpointUri: " + receiver.getEndpointURI());
            }
        }
        catch (Exception e)
        {
            handleException(e, "Failed to Post event to Mule" + e.getMessage(), httpServletResponse);

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