Examples with MessageCollector org.apache.samza.task.MessageCollector used on opensource projects

Example 11 with MessageCollector

use of org.apache.samza.task.MessageCollector in project samza by apache.

the class TestWindowOperator method testTumblingWindowsAccumulatingMode.

@Test
public void testTumblingWindowsAccumulatingMode() throws Exception {
    StreamApplication sgb = new KeyedTumblingWindowStreamApplication(AccumulationMode.ACCUMULATING, Duration.ofSeconds(1), Triggers.repeat(Triggers.count(2)));
    List<WindowPane<Integer, Collection<IntegerEnvelope>>> windowPanes = new ArrayList<>();
    TestClock testClock = new TestClock();
    StreamOperatorTask task = new StreamOperatorTask(sgb, runner, testClock);
    task.init(config, taskContext);
    MessageCollector messageCollector = envelope -> windowPanes.add((WindowPane<Integer, Collection<IntegerEnvelope>>) envelope.getMessage());
    integers.forEach(n -> task.process(new IntegerEnvelope(n), messageCollector, taskCoordinator));
    testClock.advanceTime(Duration.ofSeconds(1));
    task.window(messageCollector, taskCoordinator);
    Assert.assertEquals(windowPanes.size(), 7);
    Assert.assertEquals(windowPanes.get(0).getKey().getKey(), new Integer(1));
    Assert.assertEquals((windowPanes.get(0).getMessage()).size(), 2);
    Assert.assertEquals(windowPanes.get(1).getKey().getKey(), new Integer(2));
    Assert.assertEquals((windowPanes.get(1).getMessage()).size(), 2);
    Assert.assertEquals(windowPanes.get(2).getKey().getKey(), new Integer(1));
    Assert.assertEquals((windowPanes.get(2).getMessage()).size(), 4);
    Assert.assertEquals(windowPanes.get(3).getKey().getKey(), new Integer(2));
    Assert.assertEquals((windowPanes.get(3).getMessage()).size(), 4);
}

Example 12 with MessageCollector

use of org.apache.samza.task.MessageCollector in project samza by apache.

the class TestOperatorImpl method testOnMessageUpdatesMetrics.

@Test
public void testOnMessageUpdatesMetrics() {
    TaskContext mockTaskContext = mock(TaskContext.class);
    MetricsRegistry mockMetricsRegistry = mock(MetricsRegistry.class);
    when(mockTaskContext.getMetricsRegistry()).thenReturn(mockMetricsRegistry);
    Counter mockCounter = mock(Counter.class);
    Timer mockTimer = mock(Timer.class);
    when(mockMetricsRegistry.newCounter(anyString(), anyString())).thenReturn(mockCounter);
    when(mockMetricsRegistry.newTimer(anyString(), anyString())).thenReturn(mockTimer);
    Object mockTestOpImplOutput = mock(Object.class);
    OperatorImpl<Object, Object> opImpl = new TestOpImpl(mockTestOpImplOutput);
    opImpl.init(mock(Config.class), mockTaskContext);
    // send a message to this operator
    MessageCollector mockCollector = mock(MessageCollector.class);
    TaskCoordinator mockCoordinator = mock(TaskCoordinator.class);
    opImpl.onMessage(mock(Object.class), mockCollector, mockCoordinator);
    // verify that it updates message count and timer metrics
    verify(mockCounter, times(1)).inc();
    verify(mockTimer, times(1)).update(anyLong());
}

Example 13 with MessageCollector

use of org.apache.samza.task.MessageCollector in project samza by apache.

the class TestOperatorSpecs method testCreateSinkOperator.

@Test
public void testCreateSinkOperator() {
    SystemStream testStream = new SystemStream("test-sys", "test-stream");
    SinkFunction<TestMessageEnvelope> sinkFn = (TestMessageEnvelope message, MessageCollector messageCollector, TaskCoordinator taskCoordinator) -> {
        messageCollector.send(new OutgoingMessageEnvelope(testStream, message.getKey(), message.getMessage()));
    };
    SinkOperatorSpec<TestMessageEnvelope> sinkOp = OperatorSpecs.createSinkOperatorSpec(sinkFn, 1);
    assertEquals(sinkOp.getSinkFn(), sinkFn);
    TestMessageEnvelope mockInput = mock(TestMessageEnvelope.class);
    when(mockInput.getKey()).thenReturn("my-test-msg-key");
    MessageType mockMsgBody = mock(MessageType.class);
    when(mockInput.getMessage()).thenReturn(mockMsgBody);
    final List<OutgoingMessageEnvelope> outputMsgs = new ArrayList<>();
    MessageCollector mockCollector = mock(MessageCollector.class);
    doAnswer(invocation -> {
        outputMsgs.add((OutgoingMessageEnvelope) invocation.getArguments()[0]);
        return null;
    }).when(mockCollector).send(any());
    sinkOp.getSinkFn().apply(mockInput, mockCollector, null);
    assertEquals(1, outputMsgs.size());
    assertEquals(outputMsgs.get(0).getKey(), "my-test-msg-key");
    assertEquals(outputMsgs.get(0).getMessage(), mockMsgBody);
    assertEquals(sinkOp.getOpCode(), OperatorSpec.OpCode.SINK);
    assertEquals(sinkOp.getNextStream(), null);
}

Example 14 with MessageCollector

use of org.apache.samza.task.MessageCollector in project samza by apache.

the class TestWindowOperator method testTumblingWindowsDiscardingMode.

@Test
public void testTumblingWindowsDiscardingMode() throws Exception {
    StreamApplication sgb = new KeyedTumblingWindowStreamApplication(AccumulationMode.DISCARDING, Duration.ofSeconds(1), Triggers.repeat(Triggers.count(2)));
    List<WindowPane<Integer, Collection<IntegerEnvelope>>> windowPanes = new ArrayList<>();
    TestClock testClock = new TestClock();
    StreamOperatorTask task = new StreamOperatorTask(sgb, runner, testClock);
    task.init(config, taskContext);
    MessageCollector messageCollector = envelope -> windowPanes.add((WindowPane<Integer, Collection<IntegerEnvelope>>) envelope.getMessage());
    integers.forEach(n -> task.process(new IntegerEnvelope(n), messageCollector, taskCoordinator));
    testClock.advanceTime(Duration.ofSeconds(1));
    task.window(messageCollector, taskCoordinator);
    Assert.assertEquals(windowPanes.size(), 5);
    Assert.assertEquals(windowPanes.get(0).getKey().getKey(), new Integer(1));
    Assert.assertEquals((windowPanes.get(0).getMessage()).size(), 2);
    Assert.assertEquals(windowPanes.get(1).getKey().getKey(), new Integer(2));
    Assert.assertEquals((windowPanes.get(1).getMessage()).size(), 2);
    Assert.assertEquals(windowPanes.get(2).getKey().getKey(), new Integer(1));
    Assert.assertEquals((windowPanes.get(2).getMessage()).size(), 2);
    Assert.assertEquals(windowPanes.get(3).getKey().getKey(), new Integer(2));
    Assert.assertEquals((windowPanes.get(3).getMessage()).size(), 2);
    Assert.assertEquals(windowPanes.get(4).getKey().getKey(), new Integer(3));
    Assert.assertEquals((windowPanes.get(4).getMessage()).size(), 1);
}

Example 15 with MessageCollector

use of org.apache.samza.task.MessageCollector in project samza by apache.

the class TestWindowOperator method testSessionWindowsDiscardingMode.

@Test
public void testSessionWindowsDiscardingMode() throws Exception {
    StreamApplication sgb = new KeyedSessionWindowStreamApplication(AccumulationMode.DISCARDING, Duration.ofMillis(500));
    TestClock testClock = new TestClock();
    List<WindowPane<Integer, Collection<IntegerEnvelope>>> windowPanes = new ArrayList<>();
    StreamOperatorTask task = new StreamOperatorTask(sgb, runner, testClock);
    task.init(config, taskContext);
    MessageCollector messageCollector = envelope -> windowPanes.add((WindowPane<Integer, Collection<IntegerEnvelope>>) envelope.getMessage());
    task.process(new IntegerEnvelope(1), messageCollector, taskCoordinator);
    task.process(new IntegerEnvelope(1), messageCollector, taskCoordinator);
    testClock.advanceTime(Duration.ofSeconds(1));
    task.window(messageCollector, taskCoordinator);
    Assert.assertEquals(windowPanes.size(), 1);
    Assert.assertEquals(windowPanes.get(0).getKey().getPaneId(), "1");
    Assert.assertEquals(windowPanes.get(0).getKey().getKey(), new Integer(1));
    task.process(new IntegerEnvelope(2), messageCollector, taskCoordinator);
    task.process(new IntegerEnvelope(2), messageCollector, taskCoordinator);
    task.process(new IntegerEnvelope(3), messageCollector, taskCoordinator);
    task.process(new IntegerEnvelope(3), messageCollector, taskCoordinator);
    testClock.advanceTime(Duration.ofSeconds(1));
    task.window(messageCollector, taskCoordinator);
    Assert.assertEquals(windowPanes.size(), 3);
    Assert.assertEquals(windowPanes.get(0).getKey().getPaneId(), "1");
    Assert.assertEquals(windowPanes.get(1).getKey().getPaneId(), "1001");
    Assert.assertEquals(windowPanes.get(2).getKey().getPaneId(), "1001");
    Assert.assertEquals((windowPanes.get(0).getMessage()).size(), 2);
    Assert.assertEquals((windowPanes.get(1).getMessage()).size(), 2);
    Assert.assertEquals((windowPanes.get(2).getMessage()).size(), 2);
    task.process(new IntegerEnvelope(2), messageCollector, taskCoordinator);
    task.process(new IntegerEnvelope(2), messageCollector, taskCoordinator);
    testClock.advanceTime(Duration.ofSeconds(1));
    task.window(messageCollector, taskCoordinator);
    Assert.assertEquals(windowPanes.size(), 4);
    Assert.assertEquals(windowPanes.get(3).getKey().getKey(), new Integer(2));
    Assert.assertEquals(windowPanes.get(3).getKey().getPaneId(), "2001");
    Assert.assertEquals((windowPanes.get(3).getMessage()).size(), 2);
}