Example usage for org.springframework.integration.core MessageSource MessageSource

Introduction

In this page you can find the example usage for org.springframework.integration.core MessageSource MessageSource.

Prototype

MessageSource

Source Link

Usage

From source file:cn.com.sina.alan.demo.SampleSource.java

@Bean
@InboundChannelAdapter(value = Source.SAMPLE, poller = @Poller(fixedDelay = "1000", maxMessagesPerPoll = "1"))
public MessageSource<String> timerMessageSource() {
    return new MessageSource<String>() {
        public Message<String> receive() {
            System.out.println("******************");
            System.out.println("At the Source");
            System.out.println("******************");
            Converters.Foo foo = new Converters.Foo();
            foo.setValue("hi");
            System.out.println("Sending value: " + foo.getValue() + " of type " + foo.getClass());
            return new GenericMessage(foo);
        }//from   w w  w  . ja v  a  2 s.c o m
    };
}

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From source file:demo.SampleSource.java

@Bean
@InboundChannelAdapter(value = Source.SAMPLE, poller = @Poller(fixedDelay = "1000", maxMessagesPerPoll = "1"))
public MessageSource<String> timerMessageSource() {
    return new MessageSource<String>() {
        public Message<String> receive() {
            System.out.println("******************");
            System.out.println("At the Source");
            System.out.println("******************");
            String value = "{\"value\":\"hi\"}";
            System.out.println("Sending value: " + value);
            return MessageBuilder.withPayload(value).setHeader(MessageHeaders.CONTENT_TYPE, "application/json")
                    .build();/*from   ww w .  ja  v  a2s . c  om*/
        }
    };
}

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From source file:org.springframework.integration.endpoint.PseudoTransactionalMessageSourceTests.java

@Test
public void testCommit() {
    SourcePollingChannelAdapter adapter = new SourcePollingChannelAdapter();
    ExpressionEvaluatingTransactionSynchronizationProcessor syncProcessor = new ExpressionEvaluatingTransactionSynchronizationProcessor();
    syncProcessor.setBeanFactory(mock(BeanFactory.class));
    PollableChannel queueChannel = new QueueChannel();
    syncProcessor.setBeforeCommitExpression(new SpelExpressionParser().parseExpression("#bix"));
    syncProcessor.setBeforeCommitChannel(queueChannel);
    syncProcessor.setAfterCommitExpression(new SpelExpressionParser().parseExpression("#baz"));

    DefaultTransactionSynchronizationFactory syncFactory = new DefaultTransactionSynchronizationFactory(
            syncProcessor);//ww  w  .  j  av  a  2 s .c om

    adapter.setTransactionSynchronizationFactory(syncFactory);

    QueueChannel outputChannel = new QueueChannel();
    adapter.setOutputChannel(outputChannel);
    adapter.setSource(new MessageSource<String>() {

        @Override
        public Message<String> receive() {
            GenericMessage<String> message = new GenericMessage<String>("foo");
            IntegrationResourceHolder holder = (IntegrationResourceHolder) TransactionSynchronizationManager
                    .getResource(this);
            holder.addAttribute("baz", "qux");
            holder.addAttribute("bix", "qox");
            return message;
        }
    });

    MessageChannel afterCommitChannel = TestUtils.getPropertyValue(syncProcessor, "afterCommitChannel",
            MessageChannel.class);
    assertThat(afterCommitChannel, Matchers.instanceOf(NullChannel.class));

    Log logger = TestUtils.getPropertyValue(afterCommitChannel, "logger", Log.class);

    logger = Mockito.spy(logger);

    Mockito.when(logger.isDebugEnabled()).thenReturn(true);

    DirectFieldAccessor dfa = new DirectFieldAccessor(afterCommitChannel);
    dfa.setPropertyValue("logger", logger);

    TransactionSynchronizationManager.initSynchronization();
    TransactionSynchronizationManager.setActualTransactionActive(true);
    doPoll(adapter);
    TransactionSynchronizationUtils.triggerBeforeCommit(false);
    TransactionSynchronizationUtils.triggerAfterCommit();
    Message<?> beforeCommitMessage = queueChannel.receive(1000);
    assertNotNull(beforeCommitMessage);
    assertEquals("qox", beforeCommitMessage.getPayload());

    Mockito.verify(logger).debug(Mockito.anyString());

    TransactionSynchronizationUtils.triggerAfterCompletion(TransactionSynchronization.STATUS_COMMITTED);
    TransactionSynchronizationManager.clearSynchronization();
    TransactionSynchronizationManager.setActualTransactionActive(false);
}

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From source file:org.springframework.integration.endpoint.PseudoTransactionalMessageSourceTests.java

@Test
public void testTransactionSynchronizationFactoryBean() {
    ConfigurableApplicationContext ctx = new AnnotationConfigApplicationContext(TestTxSyncConfiguration.class);

    TransactionSynchronizationFactory syncFactory = ctx.getBean(TransactionSynchronizationFactory.class);

    PollableChannel queueChannel = ctx.getBean("outputChannel", PollableChannel.class);

    SourcePollingChannelAdapter adapter = new SourcePollingChannelAdapter();

    adapter.setTransactionSynchronizationFactory(syncFactory);

    QueueChannel outputChannel = new QueueChannel();
    adapter.setOutputChannel(outputChannel);
    adapter.setSource(new MessageSource<String>() {

        @Override/*from   w  ww.j a  v  a2s. c om*/
        public Message<String> receive() {
            GenericMessage<String> message = new GenericMessage<String>("foo");
            IntegrationResourceHolder holder = (IntegrationResourceHolder) TransactionSynchronizationManager
                    .getResource(this);
            holder.addAttribute("baz", "qux");
            holder.addAttribute("bix", "qox");
            return message;
        }
    });

    TransactionSynchronizationManager.initSynchronization();
    TransactionSynchronizationManager.setActualTransactionActive(true);
    doPoll(adapter);
    TransactionSynchronizationUtils.triggerBeforeCommit(false);
    TransactionSynchronizationUtils.triggerAfterCommit();
    Message<?> beforeCommitMessage = queueChannel.receive(1000);
    assertNotNull(beforeCommitMessage);
    assertEquals("qox", beforeCommitMessage.getPayload());
    Message<?> afterCommitMessage = queueChannel.receive(1000);
    assertNotNull(afterCommitMessage);
    assertEquals("qux", afterCommitMessage.getPayload());
    TransactionSynchronizationUtils.triggerAfterCompletion(TransactionSynchronization.STATUS_COMMITTED);
    TransactionSynchronizationManager.clearSynchronization();
    TransactionSynchronizationManager.setActualTransactionActive(false);
    ctx.close();
}

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From source file:org.springframework.integration.endpoint.PseudoTransactionalMessageSourceTests.java

@Test
public void testRollback() {
    SourcePollingChannelAdapter adapter = new SourcePollingChannelAdapter();
    ExpressionEvaluatingTransactionSynchronizationProcessor syncProcessor = new ExpressionEvaluatingTransactionSynchronizationProcessor();
    syncProcessor.setBeanFactory(mock(BeanFactory.class));
    PollableChannel queueChannel = new QueueChannel();
    syncProcessor.setAfterRollbackChannel(queueChannel);
    syncProcessor.setAfterRollbackExpression(new SpelExpressionParser().parseExpression("#baz"));

    DefaultTransactionSynchronizationFactory syncFactory = new DefaultTransactionSynchronizationFactory(
            syncProcessor);/*  w ww. ja v  a  2s .  c  o  m*/

    adapter.setTransactionSynchronizationFactory(syncFactory);

    QueueChannel outputChannel = new QueueChannel();
    adapter.setOutputChannel(outputChannel);
    adapter.setSource(new MessageSource<String>() {

        @Override
        public Message<String> receive() {
            GenericMessage<String> message = new GenericMessage<String>("foo");
            ((IntegrationResourceHolder) TransactionSynchronizationManager.getResource(this))
                    .addAttribute("baz", "qux");
            return message;
        }
    });

    TransactionSynchronizationManager.initSynchronization();
    TransactionSynchronizationManager.setActualTransactionActive(true);
    doPoll(adapter);
    TransactionSynchronizationUtils.triggerAfterCompletion(TransactionSynchronization.STATUS_ROLLED_BACK);
    Message<?> rollbackMessage = queueChannel.receive(1000);
    assertNotNull(rollbackMessage);
    assertEquals("qux", rollbackMessage.getPayload());
    TransactionSynchronizationManager.clearSynchronization();
    TransactionSynchronizationManager.setActualTransactionActive(false);
}

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From source file:org.springframework.integration.endpoint.PseudoTransactionalMessageSourceTests.java

@Test
public void testCommitWithManager() {
    final PollableChannel queueChannel = new QueueChannel();
    TransactionTemplate transactionTemplate = new TransactionTemplate(new PseudoTransactionManager());
    transactionTemplate.execute(status -> {
        SourcePollingChannelAdapter adapter = new SourcePollingChannelAdapter();
        ExpressionEvaluatingTransactionSynchronizationProcessor syncProcessor = new ExpressionEvaluatingTransactionSynchronizationProcessor();
        syncProcessor.setBeanFactory(mock(BeanFactory.class));
        syncProcessor.setBeforeCommitExpression(new SpelExpressionParser().parseExpression("#bix"));
        syncProcessor.setBeforeCommitChannel(queueChannel);
        syncProcessor.setAfterCommitChannel(queueChannel);
        syncProcessor.setAfterCommitExpression(new SpelExpressionParser().parseExpression("#baz"));

        DefaultTransactionSynchronizationFactory syncFactory = new DefaultTransactionSynchronizationFactory(
                syncProcessor);/*  ww w  .j  a v a 2  s.co m*/

        adapter.setTransactionSynchronizationFactory(syncFactory);

        QueueChannel outputChannel = new QueueChannel();
        adapter.setOutputChannel(outputChannel);
        adapter.setSource(new MessageSource<String>() {

            @Override
            public Message<String> receive() {
                GenericMessage<String> message = new GenericMessage<String>("foo");
                IntegrationResourceHolder holder = (IntegrationResourceHolder) TransactionSynchronizationManager
                        .getResource(this);
                holder.addAttribute("baz", "qux");
                holder.addAttribute("bix", "qox");
                return message;
            }
        });

        doPoll(adapter);
        return null;
    });
    Message<?> beforeCommitMessage = queueChannel.receive(1000);
    assertNotNull(beforeCommitMessage);
    assertEquals("qox", beforeCommitMessage.getPayload());
    Message<?> afterCommitMessage = queueChannel.receive(1000);
    assertNotNull(afterCommitMessage);
    assertEquals("qux", afterCommitMessage.getPayload());
}

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From source file:org.springframework.integration.endpoint.PseudoTransactionalMessageSourceTests.java

@Test
public void testRollbackWithManager() {
    final PollableChannel queueChannel = new QueueChannel();
    TransactionTemplate transactionTemplate = new TransactionTemplate(new PseudoTransactionManager());
    try {//from  www.  j  ava  2  s .  c o m
        transactionTemplate.execute(status -> {

            SourcePollingChannelAdapter adapter = new SourcePollingChannelAdapter();
            ExpressionEvaluatingTransactionSynchronizationProcessor syncProcessor = new ExpressionEvaluatingTransactionSynchronizationProcessor();
            syncProcessor.setBeanFactory(mock(BeanFactory.class));
            syncProcessor.setAfterRollbackChannel(queueChannel);
            syncProcessor.setAfterRollbackExpression(new SpelExpressionParser().parseExpression("#baz"));

            DefaultTransactionSynchronizationFactory syncFactory = new DefaultTransactionSynchronizationFactory(
                    syncProcessor);

            adapter.setTransactionSynchronizationFactory(syncFactory);

            QueueChannel outputChannel = new QueueChannel();
            adapter.setOutputChannel(outputChannel);
            adapter.setSource(new MessageSource<String>() {

                @Override
                public Message<String> receive() {
                    GenericMessage<String> message = new GenericMessage<String>("foo");
                    ((IntegrationResourceHolder) TransactionSynchronizationManager.getResource(this))
                            .addAttribute("baz", "qux");
                    return message;
                }
            });

            doPoll(adapter);
            throw new RuntimeException("Force rollback");
        });
    } catch (Exception e) {
        assertEquals("Force rollback", e.getMessage());
    }
    Message<?> rollbackMessage = queueChannel.receive(1000);
    assertNotNull(rollbackMessage);
    assertEquals("qux", rollbackMessage.getPayload());
}

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From source file:org.springframework.integration.endpoint.PseudoTransactionalMessageSourceTests.java

@Test
public void testRollbackWithManagerUsingStatus() {
    final PollableChannel queueChannel = new QueueChannel();
    TransactionTemplate transactionTemplate = new TransactionTemplate(new PseudoTransactionManager());
    transactionTemplate.execute(status -> {

        SourcePollingChannelAdapter adapter = new SourcePollingChannelAdapter();
        ExpressionEvaluatingTransactionSynchronizationProcessor syncProcessor = new ExpressionEvaluatingTransactionSynchronizationProcessor();
        syncProcessor.setBeanFactory(mock(BeanFactory.class));
        syncProcessor.setAfterRollbackChannel(queueChannel);
        syncProcessor.setAfterRollbackExpression(new SpelExpressionParser().parseExpression("#baz"));

        DefaultTransactionSynchronizationFactory syncFactory = new DefaultTransactionSynchronizationFactory(
                syncProcessor);/*from   w ww  .  j  a  v  a 2 s.c o  m*/

        adapter.setTransactionSynchronizationFactory(syncFactory);

        QueueChannel outputChannel = new QueueChannel();
        adapter.setOutputChannel(outputChannel);
        adapter.setSource(new MessageSource<String>() {

            @Override
            public Message<String> receive() {
                GenericMessage<String> message = new GenericMessage<String>("foo");
                ((IntegrationResourceHolder) TransactionSynchronizationManager.getResource(this))
                        .addAttribute("baz", "qux");
                return message;
            }
        });

        doPoll(adapter);
        status.setRollbackOnly();
        return null;
    });
    Message<?> rollbackMessage = queueChannel.receive(1000);
    assertNotNull(rollbackMessage);
    assertEquals("qux", rollbackMessage.getPayload());
}

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