Example usage for org.springframework.messaging PollableChannel receive

Introduction

In this page you can find the example usage for org.springframework.messaging PollableChannel receive.

Prototype

@Nullable
Message<?> receive();

Source Link

Document

Receive a message from this channel, blocking indefinitely if necessary.

Usage

From source file:com.aeg.ims.ftp.SftpInboundReceiveSample.java

public void runDemo() {
    ConfigurableApplicationContext context = new ClassPathXmlApplicationContext(
            "classpath:/META-INF/spring/integration/SftpInboundReceiveSample-context.xml");

    RemoteFileTemplate<LsEntry> template = null;
    String file1 = "a.txt";
    String file2 = "b.txt";
    String file3 = "c.bar";
    new File("local-dir", file1).delete();
    new File("local-dir", file2).delete();
    try {/*w  ww  . j a v a  2 s .c o  m*/
        PollableChannel localFileChannel = context.getBean("receiveChannel", PollableChannel.class);
        @SuppressWarnings("unchecked")
        SessionFactory<LsEntry> sessionFactory = context.getBean(CachingSessionFactory.class);
        template = new RemoteFileTemplate<LsEntry>(sessionFactory);
        SftpTestUtils.createTestFiles(template, file1, file2, file3);

        SourcePollingChannelAdapter adapter = context.getBean(SourcePollingChannelAdapter.class);
        adapter.start();

        Message<?> received = localFileChannel.receive();
        assertNotNull("Expected file", received);
        System.out.println("Received first file message: " + received);
        received = localFileChannel.receive();
        assertNotNull("Expected file", received);
        System.out.println("Received second file message: " + received);
        received = localFileChannel.receive(1000);
        assertNull("Expected null", received);
        System.out.println("No third file was received as expected");
    } finally {
        SftpTestUtils.cleanUp(template, file1, file2, file3);
        context.close();
        assertTrue("Could note delete retrieved file", new File("local-dir", file1).delete());
        assertTrue("Could note delete retrieved file", new File("local-dir", file2).delete());
    }
}

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From source file:org.springframework.integration.xmpp.inbound.ChatMessageListeningEndpointTests.java

@Test
public void testWithErrorChannel() throws NotConnectedException {
    DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
    XMPPConnection connection = mock(XMPPConnection.class);
    bf.registerSingleton(XmppContextUtils.XMPP_CONNECTION_BEAN_NAME, connection);

    ChatMessageListeningEndpoint endpoint = new ChatMessageListeningEndpoint();

    DirectChannel outChannel = new DirectChannel();
    outChannel.subscribe(message -> {
        throw new RuntimeException("ooops");
    });/*from  w w w . ja v a  2  s .c o m*/
    PollableChannel errorChannel = new QueueChannel();
    endpoint.setBeanFactory(bf);
    endpoint.setOutputChannel(outChannel);
    endpoint.setErrorChannel(errorChannel);
    endpoint.afterPropertiesSet();
    StanzaListener listener = (StanzaListener) TestUtils.getPropertyValue(endpoint, "stanzaListener");
    Message smackMessage = new Message("kermit@frog.com");
    smackMessage.setBody("hello");
    smackMessage.setThread("1234");
    listener.processPacket(smackMessage);

    ErrorMessage msg = (ErrorMessage) errorChannel.receive();
    assertEquals("hello", ((MessagingException) msg.getPayload()).getFailedMessage().getPayload());
}

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