Example usage for org.springframework.integration.channel QueueChannel QueueChannel

List of usage examples for org.springframework.integration.channel QueueChannel QueueChannel

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Introduction

In this page you can find the example usage for org.springframework.integration.channel QueueChannel QueueChannel.

Prototype

public QueueChannel()

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Document

Create a channel with "unbounded" queue capacity.

Usage

From source file:org.springframework.integration.file.FileWritingMessageHandlerTests.java

@Test
public void existingWritingFileNotIgnoredIfEmptySuffix() throws Exception {
    Message<?> message = MessageBuilder.withPayload(SAMPLE_CONTENT).build();
    QueueChannel output = new QueueChannel();
    File outFile = temp.newFile("/outputDirectory/" + message.getHeaders().getId().toString() + ".msg.writing");
    FileCopyUtils.copy("foo".getBytes(), new FileOutputStream(outFile));
    handler.setCharset(DEFAULT_ENCODING);
    handler.setOutputChannel(output);//from ww w  .  ja  v a 2s.  c om
    handler.setFileExistsMode(FileExistsMode.IGNORE);
    handler.setTemporaryFileSuffix("");
    handler.handleMessage(message);
    Message<?> result = output.receive(0);
    File destFile = (File) result.getPayload();
    assertNotSame(destFile, sourceFile);
    assertFileContentIsMatching(result);
    assertThat(outFile.exists(), is(true));
    assertFileContentIs(outFile, "foo");
}

From source file:org.springframework.integration.file.FileWritingMessageHandlerTests.java

@Test
public void replaceIfDifferent() throws IOException {
    QueueChannel output = new QueueChannel();
    this.handler.setOutputChannel(output);
    this.handler.setPreserveTimestamp(true);
    this.handler.setFileExistsMode(FileExistsMode.REPLACE_IF_MODIFIED);
    this.handler.handleMessage(
            MessageBuilder.withPayload("foo").setHeader(FileHeaders.FILENAME, "replaceIfDifferent.txt")
                    .setHeader(FileHeaders.SET_MODIFIED, 42_000_000).build());
    Message<?> result = output.receive(0);
    assertFileContentIs(result, "foo");
    assertLastModifiedIs(result, 42_000_000);
    this.handler.handleMessage(
            MessageBuilder.withPayload("bar").setHeader(FileHeaders.FILENAME, "replaceIfDifferent.txt")
                    .setHeader(FileHeaders.SET_MODIFIED, 42_000_000).build());
    result = output.receive(0);/*  w  w w . java 2  s  .  c o  m*/
    assertFileContentIs(result, "foo"); // no overwrite - timestamp same
    assertLastModifiedIs(result, 42_000_000);
    this.handler.handleMessage(
            MessageBuilder.withPayload("bar").setHeader(FileHeaders.FILENAME, "replaceIfDifferent.txt")
                    .setHeader(FileHeaders.SET_MODIFIED, 43_000_000).build());
    result = output.receive(0);
    assertFileContentIs(result, "bar");
    assertLastModifiedIs(result, 43_000_000);
}

From source file:org.springframework.integration.file.FileWritingMessageHandlerTests.java

@Test
public void replaceIfDifferentFile() throws IOException {
    File file = new File(this.temp.newFolder(), "foo.txt");
    FileCopyUtils.copy("foo".getBytes(), new FileOutputStream(file));
    file.setLastModified(42_000_000);/*  w w  w.  j av a  2 s  .  c  o  m*/
    QueueChannel output = new QueueChannel();
    this.handler.setOutputChannel(output);
    this.handler.setPreserveTimestamp(true);
    this.handler.setFileExistsMode(FileExistsMode.REPLACE_IF_MODIFIED);
    this.handler.handleMessage(MessageBuilder.withPayload(file).build());
    Message<?> result = output.receive(0);
    assertFileContentIs(result, "foo");
    assertLastModifiedIs(result, 42_000_000);
    FileCopyUtils.copy("bar".getBytes(), new FileOutputStream(file));
    file.setLastModified(42_000_000);
    this.handler.handleMessage(MessageBuilder.withPayload(file).build());
    result = output.receive(0);
    assertFileContentIs(result, "foo"); // no overwrite - timestamp same
    assertLastModifiedIs(result, 42_000_000);
    file.setLastModified(43_000_000);
    this.handler.handleMessage(MessageBuilder.withPayload(file).build());
    result = output.receive(0);
    assertFileContentIs(result, "bar");
    assertLastModifiedIs(result, 43_000_000);
}

From source file:org.springframework.integration.file.tail.FileTailingMessageProducerTests.java

private void testGuts(FileTailingMessageProducerSupport adapter, String field) throws Exception {
    this.adapter = adapter;
    final List<FileTailingEvent> events = new ArrayList<FileTailingEvent>();
    adapter.setApplicationEventPublisher(new ApplicationEventPublisher() {
        @Override/*ww w  .  ja v  a 2 s .c o m*/
        public void publishEvent(ApplicationEvent event) {
            FileTailingEvent tailEvent = (FileTailingEvent) event;
            logger.warn(event);
            events.add(tailEvent);
        }
    });
    adapter.setFile(new File(testDir, "foo"));
    QueueChannel outputChannel = new QueueChannel();
    adapter.setOutputChannel(outputChannel);
    adapter.setTailAttemptsDelay(500);
    adapter.afterPropertiesSet();
    File file = new File(testDir, "foo");
    File renamed = new File(testDir, "bar");
    file.delete();
    renamed.delete();
    adapter.start();
    waitForField(adapter, field);
    FileOutputStream foo = new FileOutputStream(file);
    for (int i = 0; i < 50; i++) {
        foo.write(("hello" + i + "\n").getBytes());
    }
    foo.flush();
    foo.close();
    for (int i = 0; i < 50; i++) {
        Message<?> message = outputChannel.receive(5000);
        assertNotNull("expected a non-null message", message);
        assertEquals("hello" + i, message.getPayload());
    }
    file.renameTo(renamed);
    file = new File(testDir, "foo");
    foo = new FileOutputStream(file);
    if (adapter instanceof ApacheCommonsFileTailingMessageProducer) {
        Thread.sleep(1000);
    }
    for (int i = 50; i < 100; i++) {
        foo.write(("hello" + i + "\n").getBytes());
    }
    foo.flush();
    foo.close();
    for (int i = 50; i < 100; i++) {
        Message<?> message = outputChannel.receive(10000);
        assertNotNull("expected a non-null message", message);
        assertEquals("hello" + i, message.getPayload());
    }
}

From source file:org.springframework.integration.ftp.dsl.FtpTests.java

@Test
public void testFtpInboundFlow() {
    QueueChannel out = new QueueChannel();
    IntegrationFlow flow = IntegrationFlows.from(
            Ftp.inboundAdapter(sessionFactory()).preserveTimestamp(true).remoteDirectory("ftpSource")
                    .regexFilter(".*\\.txt$").localFilename(f -> f.toUpperCase() + ".a")
                    .localDirectory(getTargetLocalDirectory()),
            e -> e.id("ftpInboundAdapter").poller(Pollers.fixedDelay(100))).channel(out).get();
    IntegrationFlowRegistration registration = this.flowContext.registration(flow).register();
    Message<?> message = out.receive(10_000);
    assertNotNull(message);//from   w  w w.  j a  va  2 s . co  m
    Object payload = message.getPayload();
    assertThat(payload, instanceOf(File.class));
    File file = (File) payload;
    assertThat(file.getName(), isOneOf(" FTPSOURCE1.TXT.a", "FTPSOURCE2.TXT.a"));
    assertThat(file.getAbsolutePath(), containsString("localTarget"));

    message = out.receive(10_000);
    assertNotNull(message);
    file = (File) message.getPayload();
    assertThat(file.getName(), isOneOf(" FTPSOURCE1.TXT.a", "FTPSOURCE2.TXT.a"));
    assertThat(file.getAbsolutePath(), containsString("localTarget"));

    assertNull(out.receive(10));

    File remoteFile = new File(this.sourceRemoteDirectory, " " + prefix() + "Source1.txt");
    remoteFile.setLastModified(System.currentTimeMillis() - 1000 * 60 * 60 * 24);

    message = out.receive(10_000);
    assertNotNull(message);
    payload = message.getPayload();
    assertThat(payload, instanceOf(File.class));
    file = (File) payload;
    assertEquals(" FTPSOURCE1.TXT.a", file.getName());

    registration.destroy();
}

From source file:org.springframework.integration.ftp.dsl.FtpTests.java

@Test
public void testFtpInboundStreamFlow() throws Exception {
    QueueChannel out = new QueueChannel();
    StandardIntegrationFlow flow = IntegrationFlows.from(
            Ftp.inboundStreamingAdapter(new FtpRemoteFileTemplate(sessionFactory()))
                    .remoteDirectory("ftpSource").regexFilter(".*\\.txt$"),
            e -> e.id("ftpInboundAdapter").poller(Pollers.fixedDelay(100))).channel(out).get();
    IntegrationFlowRegistration registration = this.flowContext.registration(flow).register();
    Message<?> message = out.receive(10_000);
    assertNotNull(message);//from www.  j a  v a2 s  .c o  m
    assertThat(message.getPayload(), instanceOf(InputStream.class));
    assertThat(message.getHeaders().get(FileHeaders.REMOTE_FILE), isOneOf(" ftpSource1.txt", "ftpSource2.txt"));
    new IntegrationMessageHeaderAccessor(message).getCloseableResource().close();

    message = out.receive(10_000);
    assertNotNull(message);
    assertThat(message.getPayload(), instanceOf(InputStream.class));
    assertThat(message.getHeaders().get(FileHeaders.REMOTE_FILE), isOneOf(" ftpSource1.txt", "ftpSource2.txt"));
    new IntegrationMessageHeaderAccessor(message).getCloseableResource().close();

    registration.destroy();
}

From source file:org.springframework.integration.ftp.dsl.FtpTests.java

@Test
@SuppressWarnings("unchecked")
public void testFtpMgetFlow() {
    QueueChannel out = new QueueChannel();
    IntegrationFlow flow = f -> f/*  w w w  . j av  a  2  s  . c o m*/
            .handle(Ftp
                    .outboundGateway(sessionFactory(), AbstractRemoteFileOutboundGateway.Command.MGET,
                            "payload")
                    .options(AbstractRemoteFileOutboundGateway.Option.RECURSIVE)
                    .filterExpression("name matches 'subFtpSource|.*1.txt'")
                    .localDirectoryExpression("'" + getTargetLocalDirectoryName() + "' + #remoteDirectory")
                    .localFilenameExpression("#remoteFileName.replaceFirst('ftpSource', 'localTarget')"))
            .channel(out);
    IntegrationFlowRegistration registration = this.flowContext.registration(flow).register();
    String dir = "ftpSource/";
    registration.getInputChannel().send(new GenericMessage<>(dir + "*"));
    Message<?> result = out.receive(10_000);
    assertNotNull(result);
    List<File> localFiles = (List<File>) result.getPayload();
    // should have filtered ftpSource2.txt
    assertEquals(2, localFiles.size());

    for (File file : localFiles) {
        assertThat(file.getPath().replaceAll(Matcher.quoteReplacement(File.separator), "/"),
                Matchers.containsString(dir));
    }
    assertThat(localFiles.get(1).getPath().replaceAll(Matcher.quoteReplacement(File.separator), "/"),
            Matchers.containsString(dir + "subFtpSource"));

    registration.destroy();
}

From source file:org.springframework.integration.handler.advice.AdvisedMessageHandlerTests.java

@Test
public void successFailureAdvice() {
    final AtomicBoolean doFail = new AtomicBoolean();
    AbstractReplyProducingMessageHandler handler = new AbstractReplyProducingMessageHandler() {
        @Override/*from w w  w .ja  va 2s. co m*/
        protected Object handleRequestMessage(Message<?> requestMessage) {
            if (doFail.get()) {
                throw new RuntimeException("qux");
            }
            return "baz";
        }
    };
    QueueChannel replies = new QueueChannel();
    handler.setOutputChannel(replies);
    Message<String> message = new GenericMessage<String>("Hello, world!");

    // no advice
    handler.handleMessage(message);
    Message<?> reply = replies.receive(1000);
    assertNotNull(reply);
    assertEquals("baz", reply.getPayload());

    PollableChannel successChannel = new QueueChannel();
    PollableChannel failureChannel = new QueueChannel();
    ExpressionEvaluatingRequestHandlerAdvice advice = new ExpressionEvaluatingRequestHandlerAdvice();
    advice.setBeanFactory(mock(BeanFactory.class));
    advice.setSuccessChannel(successChannel);
    advice.setFailureChannel(failureChannel);
    advice.setOnSuccessExpression("'foo'");
    advice.setOnFailureExpression("'bar:' + #exception.message");

    List<Advice> adviceChain = new ArrayList<Advice>();
    adviceChain.add(advice);
    handler.setAdviceChain(adviceChain);
    handler.afterPropertiesSet();

    // advice with success
    handler.handleMessage(message);
    reply = replies.receive(1000);
    assertNotNull(reply);
    assertEquals("baz", reply.getPayload());

    Message<?> success = successChannel.receive(1000);
    assertNotNull(success);
    assertEquals("Hello, world!", ((AdviceMessage) success).getInputMessage().getPayload());
    assertEquals("foo", success.getPayload());

    // advice with failure, not trapped
    doFail.set(true);
    try {
        handler.handleMessage(message);
        fail("Expected exception");
    } catch (Exception e) {
        assertEquals("qux", e.getCause().getMessage());
    }

    Message<?> failure = failureChannel.receive(1000);
    assertNotNull(failure);
    assertEquals("Hello, world!", ((MessagingException) failure.getPayload()).getFailedMessage().getPayload());
    assertEquals("bar:qux",
            ((MessageHandlingExpressionEvaluatingAdviceException) failure.getPayload()).getEvaluationResult());

    // advice with failure, trapped
    advice.setTrapException(true);
    handler.handleMessage(message);
    failure = failureChannel.receive(1000);
    assertNotNull(failure);
    assertEquals("Hello, world!", ((MessagingException) failure.getPayload()).getFailedMessage().getPayload());
    assertEquals("bar:qux",
            ((MessageHandlingExpressionEvaluatingAdviceException) failure.getPayload()).getEvaluationResult());
    assertNull(replies.receive(1));

    // advice with failure, eval is result
    advice.setReturnFailureExpressionResult(true);
    handler.handleMessage(message);
    failure = failureChannel.receive(1000);
    assertNotNull(failure);
    assertEquals("Hello, world!", ((MessagingException) failure.getPayload()).getFailedMessage().getPayload());
    assertEquals("bar:qux",
            ((MessageHandlingExpressionEvaluatingAdviceException) failure.getPayload()).getEvaluationResult());

    reply = replies.receive(1000);
    assertNotNull(reply);
    assertEquals("bar:qux", reply.getPayload());

}

From source file:org.springframework.integration.handler.advice.AdvisedMessageHandlerTests.java

@Test
public void propagateOnSuccessExpressionFailures() {
    final AtomicBoolean doFail = new AtomicBoolean();
    AbstractReplyProducingMessageHandler handler = new AbstractReplyProducingMessageHandler() {
        @Override/*  www  .j a  va2s . c  o  m*/
        protected Object handleRequestMessage(Message<?> requestMessage) {
            if (doFail.get()) {
                throw new RuntimeException("qux");
            }
            return "baz";
        }
    };
    QueueChannel replies = new QueueChannel();
    handler.setOutputChannel(replies);
    Message<String> message = new GenericMessage<String>("Hello, world!");

    PollableChannel successChannel = new QueueChannel();
    PollableChannel failureChannel = new QueueChannel();
    ExpressionEvaluatingRequestHandlerAdvice advice = new ExpressionEvaluatingRequestHandlerAdvice();
    advice.setBeanFactory(mock(BeanFactory.class));
    advice.setSuccessChannel(successChannel);
    advice.setFailureChannel(failureChannel);
    advice.setOnSuccessExpression("1/0");
    advice.setOnFailureExpression("1/0");

    List<Advice> adviceChain = new ArrayList<Advice>();
    adviceChain.add(advice);
    handler.setAdviceChain(adviceChain);
    handler.afterPropertiesSet();

    // failing advice with success
    handler.handleMessage(message);
    Message<?> reply = replies.receive(1000);
    assertNotNull(reply);
    assertEquals("baz", reply.getPayload());

    Message<?> success = successChannel.receive(1000);
    assertNotNull(success);
    assertEquals("Hello, world!", ((AdviceMessage) success).getInputMessage().getPayload());
    assertEquals(ArithmeticException.class, success.getPayload().getClass());
    assertEquals("/ by zero", ((Exception) success.getPayload()).getMessage());

    // propagate failing advice with success
    advice.setPropagateEvaluationFailures(true);
    try {
        handler.handleMessage(message);
        fail("Expected Exception");
    } catch (MessageHandlingException e) {
        assertEquals("/ by zero", e.getCause().getMessage());
    }
    reply = replies.receive(1);
    assertNull(reply);

    success = successChannel.receive(1000);
    assertNotNull(success);
    assertEquals("Hello, world!", ((AdviceMessage) success).getInputMessage().getPayload());
    assertEquals(ArithmeticException.class, success.getPayload().getClass());
    assertEquals("/ by zero", ((Exception) success.getPayload()).getMessage());

}

From source file:org.springframework.integration.handler.advice.AdvisedMessageHandlerTests.java

@Test
public void propagateOnFailureExpressionFailures() {
    final AtomicBoolean doFail = new AtomicBoolean(true);
    AbstractReplyProducingMessageHandler handler = new AbstractReplyProducingMessageHandler() {
        @Override/*from  w  w w  .  j  ava 2 s.  c  om*/
        protected Object handleRequestMessage(Message<?> requestMessage) {
            if (doFail.get()) {
                throw new RuntimeException("qux");
            }
            return "baz";
        }
    };
    QueueChannel replies = new QueueChannel();
    handler.setOutputChannel(replies);
    Message<String> message = new GenericMessage<String>("Hello, world!");

    PollableChannel successChannel = new QueueChannel();
    PollableChannel failureChannel = new QueueChannel();
    ExpressionEvaluatingRequestHandlerAdvice advice = new ExpressionEvaluatingRequestHandlerAdvice();
    advice.setSuccessChannel(successChannel);
    advice.setFailureChannel(failureChannel);
    advice.setOnSuccessExpression("1/0");
    advice.setOnFailureExpression("1/0");

    List<Advice> adviceChain = new ArrayList<Advice>();
    adviceChain.add(advice);
    handler.setAdviceChain(adviceChain);
    handler.afterPropertiesSet();

    // failing advice with failure
    try {
        handler.handleMessage(message);
        fail("Expected exception");
    } catch (Exception e) {
        assertEquals("qux", e.getCause().getMessage());
    }
    Message<?> reply = replies.receive(1);
    assertNull(reply);

    Message<?> failure = failureChannel.receive(1000);
    assertNotNull(failure);
    assertEquals("Hello, world!", ((MessagingException) failure.getPayload()).getFailedMessage().getPayload());
    assertEquals(MessageHandlingExpressionEvaluatingAdviceException.class, failure.getPayload().getClass());
    assertEquals("qux", ((Exception) failure.getPayload()).getCause().getMessage());

    // propagate failing advice with failure; expect original exception
    advice.setPropagateEvaluationFailures(true);
    try {
        handler.handleMessage(message);
        fail("Expected Exception");
    } catch (MessageHandlingException e) {
        assertEquals("qux", e.getCause().getMessage());
    }
    reply = replies.receive(1);
    assertNull(reply);

    failure = failureChannel.receive(1000);
    assertNotNull(failure);
    assertEquals("Hello, world!", ((MessagingException) failure.getPayload()).getFailedMessage().getPayload());
    assertEquals(MessageHandlingExpressionEvaluatingAdviceException.class, failure.getPayload().getClass());
    assertEquals("qux", ((Exception) failure.getPayload()).getCause().getMessage());

}