Examples with FileTailingEvent org.springframework.integration.file.tail.FileTailingMessageProducerSupport.FileTailingEvent used on opensource projects

Example 1 with FileTailingEvent

use of org.springframework.integration.file.tail.FileTailingMessageProducerSupport.FileTailingEvent in project spring-integration by spring-projects.

the class FileTailingMessageProducerTests method testGuts.

private void testGuts(FileTailingMessageProducerSupport adapter, String field) throws Exception {
    this.adapter = adapter;
    ThreadPoolTaskScheduler taskScheduler = new ThreadPoolTaskScheduler();
    taskScheduler.afterPropertiesSet();
    adapter.setTaskScheduler(taskScheduler);
    final List<FileTailingEvent> events = new ArrayList<FileTailingEvent>();
    adapter.setApplicationEventPublisher(event -> {
        FileTailingEvent tailEvent = (FileTailingEvent) event;
        logger.debug(event);
        events.add(tailEvent);
    });
    adapter.setFile(new File(testDir, "foo"));
    QueueChannel outputChannel = new QueueChannel();
    adapter.setOutputChannel(outputChannel);
    adapter.setTailAttemptsDelay(500);
    adapter.setBeanFactory(mock(BeanFactory.class));
    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(10000);
        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());
        assertEquals(file, message.getHeaders().get(FileHeaders.ORIGINAL_FILE));
        assertEquals(file.getName(), message.getHeaders().get(FileHeaders.FILENAME));
    }
    assertThat(events.size(), greaterThanOrEqualTo(1));
}

Example 2 with FileTailingEvent

use of org.springframework.integration.file.tail.FileTailingMessageProducerSupport.FileTailingEvent in project spring-integration by spring-projects.

the class FileTailingMessageProducerTests method testIdleEvent.

@Test
public void testIdleEvent() throws Exception {
    ApacheCommonsFileTailingMessageProducer adapter = new ApacheCommonsFileTailingMessageProducer();
    ThreadPoolTaskScheduler taskScheduler = new ThreadPoolTaskScheduler();
    taskScheduler.afterPropertiesSet();
    adapter.setTaskScheduler(taskScheduler);
    CountDownLatch idleCountDownLatch = new CountDownLatch(1);
    CountDownLatch fileExistCountDownLatch = new CountDownLatch(1);
    adapter.setApplicationEventPublisher(event -> {
        if (event instanceof FileTailingIdleEvent) {
            idleCountDownLatch.countDown();
        }
        if (event instanceof FileTailingEvent) {
            FileTailingEvent fileTailingEvent = (FileTailingEvent) event;
            if (fileTailingEvent.getMessage().contains("File not found")) {
                fileExistCountDownLatch.countDown();
            }
        }
    });
    File file = spy(new File(this.testDir, "foo"));
    file.delete();
    adapter.setFile(file);
    adapter.setOutputChannel(new NullChannel());
    adapter.setIdleEventInterval(10);
    adapter.afterPropertiesSet();
    adapter.start();
    boolean noFile = fileExistCountDownLatch.await(10, TimeUnit.SECONDS);
    assertTrue("file does not exist event did not emit ", noFile);
    boolean noEvent = idleCountDownLatch.await(100, TimeUnit.MILLISECONDS);
    assertFalse("event should not emit when no file exit", noEvent);
    verify(file, atLeastOnce()).exists();
    file.createNewFile();
    boolean eventRaised = idleCountDownLatch.await(10, TimeUnit.SECONDS);
    assertTrue("idle event did not emit", eventRaised);
    adapter.stop();
    file.delete();
}