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.

    }


    public static MessageReceiver findReceiverByStem(Map<Object, MessageReceiver> receivers, String uriStr)
    {
        int match = 0;
        MessageReceiver receiver = null;
        for (Map.Entry<Object, MessageReceiver> e : receivers.entrySet())
        {
            String key = (String) e.getKey();
            MessageReceiver candidate = e.getValue();
            if (uriStr.startsWith(key) && match < key.length())
            {
                match = key.length();
                receiver = candidate;
            }

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        if (getReceiver(flowConstruct, endpoint) != null)
        {
            throw new ConnectorException(CoreMessages.listenerAlreadyRegistered(endpointUri), this);
        }


        MessageReceiver receiver = createReceiver(flowConstruct, endpoint);
        receiver.setListener(messageProcessorChain);


        Object receiverKey = getReceiverKey(flowConstruct, endpoint);
        receiver.setReceiverKey(receiverKey.toString());
        // Since we're managing the creation we also need to initialise
        receiver.initialise();
        receivers.put(receiverKey, receiver);


        if (isConnected())
        {
            receiver.connect();
        }


        if (isStarted())
        {
            receiver.start();
        }
    }

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            logger.info("Removing listener on endpointUri: " + endpointUri);
        }


        if (receivers != null && !receivers.isEmpty())
        {
            MessageReceiver receiver = receivers.remove(getReceiverKey(flowConstruct, endpoint));
            if (receiver != null)
            {
                // This will automatically stop and disconnect before disposing.
                destroyReceiver(receiver, endpoint);
                doUnregisterListener(flowConstruct, endpoint, receiver);

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            {
                logger.debug(message.getInboundProperty(HttpConnector.HTTP_REQUEST_PROPERTY));
            }


            // determine if the request path on this request denotes a different receiver
            MessageReceiver receiver = getTargetReceiver(message, endpoint);
            
            HttpResponse response;
            // the response only needs to be transformed explicitly if
            // A) the request was not served or B) a null result was returned
            if (receiver != null)
            {
                message.setProperty(HttpConnector.HTTP_CONTEXT_PATH_PROPERTY,
                                           HttpConnector.normalizeUrl(receiver.getEndpointURI().getPath()),
                                           PropertyScope.INBOUND);


                preRouteMessage(message);
                MuleEvent returnEvent = receiver.routeMessage(message);
                MuleMessage returnMessage = returnEvent == null ? null : returnEvent.getMessage();


                Object tempResponse;
                if (returnMessage != null)
                {

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    }


    @Override
    public MessageReceiver createReceiver(FlowConstruct flowConstuct, InboundEndpoint endpoint) throws Exception
    {
        MessageReceiver receiver = new AbstractMessageReceiver(this, flowConstuct, endpoint)
        {


            @Override
            protected void doInitialise() throws InitialisationException
            {

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    public MessageReceiver createMessageReceiver(Connector connector,
                                                 FlowConstruct flowConstruct,
                                                 InboundEndpoint endpoint) throws MuleException
    {


        MessageReceiver mr = createMessageReceiver(connector, flowConstruct, endpoint, null);
        return mr;
    }

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                System.arraycopy(args, 0, newArgs, 3, newArgs.length - 3);
            }


            try
            {
                MessageReceiver mr = (MessageReceiver) ClassUtils.instanciateClass(receiverClass, newArgs, classLoader);
                return mr;
            }
            catch (Exception e)
            {
                throw new TransportServiceException(CoreMessages.failedToCreateObjectWith("Message Receiver", getService()), e);

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        if (getReceiver(flowConstruct, endpoint) != null)
        {
            throw new ConnectorException(CoreMessages.listenerAlreadyRegistered(endpointUri), this);
        }


        MessageReceiver receiver = createReceiver(flowConstruct, endpoint);
        receiver.setListener(messageProcessorChain);


        Object receiverKey = getReceiverKey(flowConstruct, endpoint);
        receiver.setReceiverKey(receiverKey.toString());
        // Since we're managing the creation we also need to initialise
        receiver.initialise();
        receivers.put(receiverKey, receiver);


        if (isConnected())
        {
            receiver.connect();
        }


        if (isStarted())
        {
            receiver.start();
        }
    }

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            logger.info("Removing listener on endpointUri: " + endpointUri);
        }


        if (receivers != null && !receivers.isEmpty())
        {
            MessageReceiver receiver = receivers.remove(getReceiverKey(flowConstruct, endpoint));
            if (receiver != null)
            {
                // This will automatically stop and disconnect before disposing.
                destroyReceiver(receiver, endpoint);
                doUnregisterListener(flowConstruct, endpoint, receiver);

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        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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