Examples of org.switchyard.Exchange

org.switchyard.Exchange
An Exchange represents an instance of a service invocation with a specific message exchange pattern (e.g. InOnly, InOut). Exchange provides a conduit for the messages that flow into and out of a service as part of a service invocation. Unlike messages, an exchange cannot be copied and reused across service invocations. State associated with an invocation (i.e. context) is maintained at the exchange level.

        if (exchangeHandlerProxy == null) {
            responseCatcher = new ResponseCatcher();
            exchangeHandlerProxy = createHandlerProxy(responseCatcher);
        }


        Exchange exchange = createExchange(ExchangePattern.IN_OUT, exchangeHandlerProxy._exchangeHandlerProxy);


        Message message = exchange.createMessage().setContent(messagePayload);
        setProperties(exchange, message);
        addAttachments(message);
        exchange.send(message);
        exchangeHandlerProxy._proxyInvocationHandler.waitForResponse(_timeoutMillis);


        if (responseCatcher != null) {
            if (responseCatcher._isFault) {
                throw new InvocationFaultException(responseCatcher._response);

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        ExchangeSink sink = new ExchangeSink();
        Service service = new MockService(name, new InOnlyService(), sink);
        ServiceReference reference = new ServiceReferenceImpl(name, new InOnlyService(), null, null);
        ExchangeDispatcher dispatch = _provider.createDispatcher(reference);


        Exchange exchange = new CamelExchange(dispatch, new DefaultExchange(_camelContext), sink);
        exchange.consumer(reference, reference.getInterface().getOperation(ServiceInterface.DEFAULT_OPERATION));
        exchange.provider(service, service.getInterface().getOperation(ServiceInterface.DEFAULT_OPERATION));
        Message message = exchange.createMessage();
        exchange.send(message);
        Thread.sleep(200);


        Assert.assertEquals(
                message.getContext().getProperty(Exchange.MESSAGE_ID), 
                sink.getLastExchange().getMessage().getContext().getProperty(Exchange.MESSAGE_ID));

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        final int NUM_SENDS = 5;
        for (int i = 0; i < NUM_SENDS; i++) {
            new Thread(new Runnable() {
                public void run() {
                    Exchange exchange = dispatch.createExchange(sink, ExchangePattern.IN_ONLY);
                    exchange.consumer(reference, reference.getInterface().getOperation(ServiceInterface.DEFAULT_OPERATION));
                    exchange.provider(service, service.getInterface().getOperation(ServiceInterface.DEFAULT_OPERATION));
                    Message message = exchange.createMessage();
                    exchange.send(message);
                }
            }).start();
        }
        
        Thread.sleep(500);

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        final int NUM_SENDS = 5;
        for (int i = 0; i < NUM_SENDS; i++) {
            new Thread(new Runnable() {
                public void run() {
                    Exchange exchange = dispatch.createExchange(sink, ExchangePattern.IN_ONLY);
                    exchange.consumer(reference, reference.getInterface().getOperation(ServiceInterface.DEFAULT_OPERATION));
                    exchange.provider(service, service.getInterface().getOperation(ServiceInterface.DEFAULT_OPERATION));
                    Message message = exchange.createMessage();
                    exchange.send(message);
                }
            }).start();
        }
        
        Thread.sleep(4000);

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        Service service = new MockService(name, new InOutService(), inHandler);
        ServiceReference reference = new ServiceReferenceImpl(name, new InOutService(), null, null);
        Dispatcher dispatch = _provider.createDispatcher(reference);


        Exchange exchange = dispatch.createExchange(outHandler, ExchangePattern.IN_OUT);
        exchange.consumer(reference, reference.getInterface().getOperation(ServiceInterface.DEFAULT_OPERATION));
        exchange.provider(service, service.getInterface().getOperation(ServiceInterface.DEFAULT_OPERATION));
        Message message = exchange.createMessage();
        exchange.send(message.setContent(REQUEST));
        Thread.sleep(400);


        Exchange lastExchange = outHandler.getLastExchange();
        assertNotNull(lastExchange);


//        assertEquals(REQUEST, lastExchange.getMessage().getContent());


        Property messageId = message.getContext().getProperty(Exchange.MESSAGE_ID);
        assertNotNull("Message id must be available after sending message and receiving response", messageId);
        Property relatesTo = lastExchange.getContext().getProperty(Exchange.RELATES_TO);
        assertNotNull("Relates to must be specified for outgoing message", relatesTo);
        assertEquals("Relates to property should point to in message id", messageId.getValue(), relatesTo.getValue());
    }

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    }
    
    @Test
    public void testInMessageTrace() {
        ServiceReference service = _domain.createInOnlyService(new QName("InTrace"));
        Exchange exchange = service.createExchange();
        exchange.send(exchange.createMessage());
    }

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    @Test
    public void testInOutMessageTrace() throws Exception {
        ServiceReference service = _domain.createInOutService(
                new QName("InOutTrace"), new MockHandler().forwardInToOut());
        Exchange exchange = service.createExchange(new MockHandler());
        exchange.send(exchange.createMessage());
    }

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    @Test
    public void testInFaultMessageTrace() throws Exception {
        ServiceReference service = _domain.createInOutService(
                new QName("InFaultTrace"), new MockHandler().forwardInToOut());
        Exchange exchange = service.createExchange(new MockHandler());
        exchange.send(exchange.createMessage());
    }

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        MockHandler provider = new MockHandler();
        _domain.getTransformerRegistry().addTransformer(new StreamTransformer());
        ServiceReference service = _domain.createInOnlyService(new QName("StreamTest"), provider);
        
        InputStream contentAsStream = new ByteArrayInputStream(contentAsString.getBytes());
        Exchange ex = service.createExchange();
        Message msg = ex.createMessage();
        msg.setContent(contentAsStream);
        ex.send(msg);


        Message rcvdMsg = provider.getMessages().poll().getMessage();
        Assert.assertTrue(rcvdMsg.getContent(InputStream.class).available() > 0);
        
    }

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        MockHandler provider = new MockHandler();
        _domain.getTransformerRegistry().addTransformer(new ReaderTransformer());
        ServiceReference service = _domain.createInOnlyService(new QName("ReaderTest"), provider);
        
        StringReader contentAsReader = new StringReader(contentAsString);
        Exchange ex = service.createExchange();
        Message msg = ex.createMessage();
        msg.setContent(contentAsReader);
        ex.send(msg);


        Message rcvdMsg = provider.getMessages().poll().getMessage();
        Assert.assertTrue(rcvdMsg.getContent(Reader.class).read() != -1);
    }

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Related Classes of org.switchyard.Exchange

org.switchyard.admin.base.MessageMetricsCollectionTest

org.switchyard.admin.base.SwitchYardBuilder

org.switchyard.bus.camel.CamelCompositeContextTest

org.switchyard.bus.camel.CamelExchangeBusTest

org.switchyard.bus.camel.CamelShutdownTest

org.switchyard.bus.camel.ExchangeDispatcherTest

org.switchyard.bus.camel.ExchangeEventsTest

org.switchyard.component.bean.ClientProxyBean$ClientProxyInvocationHandler

org.switchyard.component.bean.exchange.ExchangeInjectionTest

org.switchyard.component.bean.inject.InjectTest

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