Package org.springframework.integration

Examples of org.springframework.integration.MessageChannel

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    @Test
    public void testSendingOneWayMessage() throws Exception {
        MockEndpoint resultEndpoint = resolveMandatoryEndpoint("mock:result", MockEndpoint.class);
        resultEndpoint.expectedBodiesReceived(MESSAGE_BODY);
        MessageChannel outputChannel = applicationContext.getBean("channelA", MessageChannel.class);
        outputChannel.send(new GenericMessage<Object>(MESSAGE_BODY));
        resultEndpoint.assertIsSatisfied();
    }
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    }

    @Test
    public void testSendingTwoWayMessage() throws Exception {

        MessageChannel requestChannel = applicationContext.getBean("channelB", MessageChannel.class);
        Message message = new GenericMessage<Object>(MESSAGE_BODY);
        //Need to subscribe the responseChannel first
        DirectChannel responseChannel = (DirectChannel) applicationContext.getBean("channelC");
        responseChannel.subscribe(new MessageHandler() {
            public void handleMessage(Message<?> message) {
                String result = (String) message.getPayload();
                assertEquals("Get the wrong result", MESSAGE_BODY + " is processed",  result);               
            }           
        });
        requestChannel.send(message);
    }
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    }

    @Test
    public void testSendingTwoWayMessageWithMessageAddress() throws Exception {

        MessageChannel requestChannel = applicationContext.getBean("channelD", MessageChannel.class);
        DirectChannel responseChannel = applicationContext.getBean("channelC", DirectChannel.class);
        Map<String, Object> headers = new HashMap<String, Object>();
        headers.put(MessageHeaders.REPLY_CHANNEL, responseChannel);
        GenericMessage<String> message = new GenericMessage<String>(MESSAGE_BODY, headers);
        responseChannel.subscribe(new MessageHandler() {
            public void handleMessage(Message<?> message) {
                String result = (String) message.getPayload();
                assertEquals("Get the wrong result", MESSAGE_BODY + " is processed",  result);               
            }           
        });
        requestChannel.send(message);       
    }
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            return;
        }

        // reply logic
        if (getEndpoint().isInOut()) {
            MessageChannel reply = null;

            // get the output channel from message header
            Object returnAddress = siInMessage.getHeaders().getReplyChannel();
            if (returnAddress != null) {
                if (returnAddress instanceof String) {
                    reply = context.getApplicationContext().getBean((String)returnAddress, MessageChannel.class);
                } else if (returnAddress instanceof MessageChannel) {
                    reply = (MessageChannel) returnAddress;
                }
            } else {
                reply = outputChannel;

                // we want to do in-out so the inputChannel is mandatory (used to receive reply from spring integration)
                if (reply == null) {
                    throw new IllegalArgumentException("OutputChannel has not been configured on " + getEndpoint());
                }
            }

            if (reply == null) {
                throw new IllegalArgumentException("Cannot resolve ReplyChannel from message: " + siInMessage);
            }

            // put the message back the outputChannel if we need
            org.springframework.integration.Message siOutMessage =
                SpringIntegrationBinding.storeToSpringIntegrationMessage(exchange.getOut());

            // send the message to spring integration
            log.debug("Sending {} to ReplyChannel: {}", siOutMessage, reply);
            reply.send(siOutMessage);
        }       
    }  
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public class SpringIntegrationTwoWayConsumerTest extends CamelSpringTestSupport {
    private static final String MESSAGE_BODY = "Request message";   

    @Test
    public void testSendingTwoWayMessage() throws Exception {
        MessageChannel requestChannel = applicationContext.getBean("requestChannel", MessageChannel.class);
        Map<String, Object> maps = new HashMap<String, Object>();
        maps.put(MessageHeaders.REPLY_CHANNEL, "responseChannel");

        Message<String> message = new GenericMessage<String>(MESSAGE_BODY, maps);

        DirectChannel responseChannel = applicationContext.getBean("responseChannel", DirectChannel.class);
        responseChannel.subscribe(new MessageHandler() {
            public void handleMessage(Message<?> message) {
                String result = (String) message.getPayload();
                assertEquals("Get the wrong result", MESSAGE_BODY + " is processed",  result);               
            }            
        });
        requestChannel.send(message);
    }
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    @Test
    public void testSendingOneWayMessage() throws Exception {
        MockEndpoint resultEndpoint = resolveMandatoryEndpoint("mock:result", MockEndpoint.class);
        resultEndpoint.expectedBodiesReceived(MESSAGE_BODY);

        MessageChannel outputChannel = applicationContext.getBean("outputChannel", MessageChannel.class);
        outputChannel.send(new GenericMessage<Object>(MESSAGE_BODY));

        resultEndpoint.assertIsSatisfied();
    }
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            return;
        }

        // reply logic
        if (getEndpoint().isInOut()) {
            MessageChannel reply = null;

            // get the output channel from message header
            Object returnAddress = siInMessage.getHeaders().getReplyChannel();
            if (returnAddress != null) {
                if (returnAddress instanceof String) {
                    reply = (MessageChannel) context.getApplicationContext().getBean((String)returnAddress);
                } else if (returnAddress instanceof MessageChannel) {
                    reply = (MessageChannel) returnAddress;
                }
            } else {
                reply = outputChannel;

                // we want to do in-out so the inputChannel is mandatory (used to receive reply from spring integration)
                if (reply == null) {
                    throw new IllegalArgumentException("OutputChannel has not been configured on " + getEndpoint());
                }
            }

            if (reply == null) {
                throw new IllegalArgumentException("Cannot resolve ReplyChannel from message: " + siInMessage);
            }

            // put the message back the outputChannel if we need
            org.springframework.integration.Message siOutMessage =
                SpringIntegrationBinding.storeToSpringIntegrationMessage(exchange.getOut());

            // send the message to spring integration
            if (log.isDebugEnabled()) {
                log.debug("Sending " + siOutMessage + " to ReplyChannel: " + reply);
            }
            reply.send(siOutMessage);
        }       
    }  
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    @Test
    public void testSendingOneWayMessage() throws Exception {
        MockEndpoint resultEndpoint = resolveMandatoryEndpoint("mock:result", MockEndpoint.class);
        resultEndpoint.expectedBodiesReceived(MESSAGE_BODY);
        MessageChannel outputChannel = (MessageChannel) applicationContext.getBean("channelA");
        outputChannel.send(new GenericMessage<Object>(MESSAGE_BODY));
        resultEndpoint.assertIsSatisfied();
    }
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    }

    @Test
    public void testSendingTwoWayMessage() throws Exception {

        MessageChannel requestChannel = (MessageChannel) applicationContext.getBean("channelB");
        Message message = new GenericMessage(MESSAGE_BODY);
        //Need to subscribe the responseChannel first
        DirectChannel responseChannel = (DirectChannel) applicationContext.getBean("channelC");
        responseChannel.subscribe(new MessageHandler() {
            public void handleMessage(Message<?> message) {
                String result = (String) message.getPayload();
                assertEquals("Get the wrong result", MESSAGE_BODY + " is processed",  result);               
            }           
        });
        requestChannel.send(message);
    }
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    }

    @Test
    public void testSendingTwoWayMessageWithMessageAddress() throws Exception {

        MessageChannel requestChannel = (MessageChannel) applicationContext.getBean("channelD");
        DirectChannel responseChannel = (DirectChannel) applicationContext.getBean("channelC");
        Map<String, Object> headers = new HashMap<String, Object>();
        headers.put(MessageHeaders.REPLY_CHANNEL, responseChannel);
        GenericMessage<String> message = new GenericMessage<String>(MESSAGE_BODY, headers);
        responseChannel.subscribe(new MessageHandler() {
            public void handleMessage(Message<?> message) {
                String result = (String) message.getPayload();
                assertEquals("Get the wrong result", MESSAGE_BODY + " is processed",  result);               
            }           
        });
        requestChannel.send(message);       
    }
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