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

Example 16 with MessageCollector

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

the class TestWindowOperator method testNonKeyedTumblingWindowsDiscardingMode.

@Test
public void testNonKeyedTumblingWindowsDiscardingMode() throws Exception {
    StreamApplication sgb = new TumblingWindowStreamApplication(AccumulationMode.DISCARDING, Duration.ofSeconds(1), Triggers.repeat(Triggers.count(1000)));
    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());
    Assert.assertEquals(windowPanes.size(), 0);
    integers.forEach(n -> task.process(new IntegerEnvelope(n), messageCollector, taskCoordinator));
    Assert.assertEquals(windowPanes.size(), 0);
    testClock.advanceTime(Duration.ofSeconds(1));
    Assert.assertEquals(windowPanes.size(), 0);
    task.window(messageCollector, taskCoordinator);
    Assert.assertEquals(windowPanes.size(), 1);
    Assert.assertEquals((windowPanes.get(0).getMessage()).size(), 9);
}

Example 17 with MessageCollector

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

the class TestSinkOperatorImpl method testSinkOperatorSinkFunction.

@Test
public void testSinkOperatorSinkFunction() {
    SinkFunction<TestOutputMessageEnvelope> sinkFn = mock(SinkFunction.class);
    SinkOperatorImpl<TestOutputMessageEnvelope> sinkImpl = createSinkOperator(sinkFn);
    TestOutputMessageEnvelope mockMsg = mock(TestOutputMessageEnvelope.class);
    MessageCollector mockCollector = mock(MessageCollector.class);
    TaskCoordinator mockCoordinator = mock(TaskCoordinator.class);
    sinkImpl.handleMessage(mockMsg, mockCollector, mockCoordinator);
    verify(sinkFn, times(1)).apply(mockMsg, mockCollector, mockCoordinator);
}

Example 18 with MessageCollector

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

the class TestSinkOperatorImpl method testSinkOperatorClose.

@Test
public void testSinkOperatorClose() {
    TestOutputMessageEnvelope mockMsg = mock(TestOutputMessageEnvelope.class);
    MessageCollector mockCollector = mock(MessageCollector.class);
    TaskCoordinator mockCoordinator = mock(TaskCoordinator.class);
    SinkFunction<TestOutputMessageEnvelope> sinkFn = mock(SinkFunction.class);
    SinkOperatorImpl<TestOutputMessageEnvelope> sinkImpl = createSinkOperator(sinkFn);
    sinkImpl.handleMessage(mockMsg, mockCollector, mockCoordinator);
    verify(sinkFn, times(1)).apply(mockMsg, mockCollector, mockCoordinator);
    // ensure that close is not called yet
    verify(sinkFn, times(0)).close();
    sinkImpl.handleClose();
    // ensure that close is called once from handleClose()
    verify(sinkFn, times(1)).close();
}

Example 19 with MessageCollector

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

the class TestWindowOperator method testCancelationOfRepeatingNestedTriggers.

@Test
public void testCancelationOfRepeatingNestedTriggers() throws Exception {
    StreamApplication sgb = new KeyedTumblingWindowStreamApplication(AccumulationMode.ACCUMULATING, Duration.ofSeconds(1), Triggers.repeat(Triggers.any(Triggers.count(2), Triggers.timeSinceFirstMessage(Duration.ofMillis(500)))));
    List<WindowPane<Integer, Collection<IntegerEnvelope>>> windowPanes = new ArrayList<>();
    MessageCollector messageCollector = envelope -> windowPanes.add((WindowPane<Integer, Collection<IntegerEnvelope>>) envelope.getMessage());
    TestClock testClock = new TestClock();
    StreamOperatorTask task = new StreamOperatorTask(sgb, runner, testClock);
    task.init(config, taskContext);
    task.process(new IntegerEnvelope(1), messageCollector, taskCoordinator);
    task.process(new IntegerEnvelope(1), messageCollector, taskCoordinator);
    //assert that the count trigger fired
    Assert.assertEquals(windowPanes.size(), 1);
    //advance the timer to enable the potential triggering of the inner timeSinceFirstMessage trigger
    task.process(new IntegerEnvelope(1), messageCollector, taskCoordinator);
    testClock.advanceTime(Duration.ofMillis(500));
    //assert that the triggering of the count trigger cancelled the inner timeSinceFirstMessage trigger
    task.window(messageCollector, taskCoordinator);
    Assert.assertEquals(windowPanes.size(), 2);
    task.process(new IntegerEnvelope(1), messageCollector, taskCoordinator);
    task.process(new IntegerEnvelope(1), messageCollector, taskCoordinator);
    Assert.assertEquals(windowPanes.size(), 3);
    task.process(new IntegerEnvelope(1), messageCollector, taskCoordinator);
    //advance timer by 500 more millis to enable the default trigger
    testClock.advanceTime(Duration.ofMillis(500));
    task.window(messageCollector, taskCoordinator);
    //assert that the default trigger fired
    Assert.assertEquals(windowPanes.size(), 4);
}

Example 20 with MessageCollector

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

the class TestOperatorImpl method testOnTimerPropagatesResultsAndTimer.

@Test
public void testOnTimerPropagatesResultsAndTimer() {
    TaskContext mockTaskContext = mock(TaskContext.class);
    when(mockTaskContext.getMetricsRegistry()).thenReturn(new MetricsRegistryMap());
    Object mockTestOpImplOutput = mock(Object.class);
    OperatorImpl<Object, Object> opImpl = new TestOpImpl(mockTestOpImplOutput);
    opImpl.init(mock(Config.class), mockTaskContext);
    // register a couple of operators
    OperatorImpl mockNextOpImpl1 = mock(OperatorImpl.class);
    when(mockNextOpImpl1.getOperatorSpec()).thenReturn(new TestOpSpec());
    when(mockNextOpImpl1.handleMessage(anyObject(), anyObject(), anyObject())).thenReturn(Collections.emptyList());
    mockNextOpImpl1.init(mock(Config.class), mockTaskContext);
    opImpl.registerNextOperator(mockNextOpImpl1);
    OperatorImpl mockNextOpImpl2 = mock(OperatorImpl.class);
    when(mockNextOpImpl2.getOperatorSpec()).thenReturn(new TestOpSpec());
    when(mockNextOpImpl2.handleMessage(anyObject(), anyObject(), anyObject())).thenReturn(Collections.emptyList());
    mockNextOpImpl2.init(mock(Config.class), mockTaskContext);
    opImpl.registerNextOperator(mockNextOpImpl2);
    // send a timer tick to this operator
    MessageCollector mockCollector = mock(MessageCollector.class);
    TaskCoordinator mockCoordinator = mock(TaskCoordinator.class);
    opImpl.onTimer(mockCollector, mockCoordinator);
    // verify that it propagates its handleTimer results to next operators
    verify(mockNextOpImpl1, times(1)).handleMessage(mockTestOpImplOutput, mockCollector, mockCoordinator);
    verify(mockNextOpImpl2, times(1)).handleMessage(mockTestOpImplOutput, mockCollector, mockCoordinator);
    // verify that it propagates the timer tick to next operators
    verify(mockNextOpImpl1, times(1)).handleTimer(mockCollector, mockCoordinator);
    verify(mockNextOpImpl2, times(1)).handleTimer(mockCollector, mockCoordinator);
}