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

Example 16 with TaskCallback

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

the class TestJoinOperator method joinRetainsMatchedMessagesReverse.

@Test
public void joinRetainsMatchedMessagesReverse() throws Exception {
    StreamApplicationDescriptorImpl streamAppDesc = this.getTestJoinStreamGraph(new TestJoinFunction());
    StreamOperatorTask sot = createStreamOperatorTask(new SystemClock(), streamAppDesc);
    List<Integer> output = new ArrayList<>();
    MessageCollector messageCollector = envelope -> output.add((Integer) envelope.getMessage());
    // push messages to first stream
    numbers.forEach(n -> sot.processAsync(new FirstStreamIME(n, n), messageCollector, taskCoordinator, taskCallback));
    // push messages to second stream with same key
    numbers.forEach(n -> sot.processAsync(new SecondStreamIME(n, n), messageCollector, taskCoordinator, taskCallback));
    int outputSum = output.stream().reduce(0, (s, m) -> s + m);
    assertEquals(110, outputSum);
    output.clear();
    // push messages to second stream with same keys once again.
    numbers.forEach(n -> sot.processAsync(new SecondStreamIME(n, n), messageCollector, taskCoordinator, taskCallback));
    int newOutputSum = output.stream().reduce(0, (s, m) -> s + m);
    // should produce the same output as before
    assertEquals(110, newOutputSum);
}

Example 17 with TaskCallback

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

the class TestJoinOperator method joinRemovesExpiredMessagesReverse.

@Test
public void joinRemovesExpiredMessagesReverse() throws Exception {
    TestClock testClock = new TestClock();
    StreamApplicationDescriptorImpl streamAppDesc = this.getTestJoinStreamGraph(new TestJoinFunction());
    StreamOperatorTask sot = createStreamOperatorTask(testClock, streamAppDesc);
    List<Integer> output = new ArrayList<>();
    MessageCollector messageCollector = envelope -> output.add((Integer) envelope.getMessage());
    // push messages to second stream
    numbers.forEach(n -> sot.processAsync(new SecondStreamIME(n, n), messageCollector, taskCoordinator, taskCallback));
    // 1 minute after ttl
    testClock.advanceTime(JOIN_TTL.plus(Duration.ofMinutes(1)));
    // should expire second stream messages
    sot.window(messageCollector, taskCoordinator);
    // push messages to first stream with same key
    numbers.forEach(n -> sot.processAsync(new FirstStreamIME(n, n), messageCollector, taskCoordinator, taskCallback));
    assertTrue(output.isEmpty());
}

Example 18 with TaskCallback

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

the class TestJoinOperator method joinRemovesExpiredMessages.

@Test
public void joinRemovesExpiredMessages() throws Exception {
    TestClock testClock = new TestClock();
    StreamApplicationDescriptorImpl streamAppDesc = this.getTestJoinStreamGraph(new TestJoinFunction());
    StreamOperatorTask sot = createStreamOperatorTask(testClock, streamAppDesc);
    List<Integer> output = new ArrayList<>();
    MessageCollector messageCollector = envelope -> output.add((Integer) envelope.getMessage());
    // push messages to first stream
    numbers.forEach(n -> sot.processAsync(new FirstStreamIME(n, n), messageCollector, taskCoordinator, taskCallback));
    // 1 minute after ttl
    testClock.advanceTime(JOIN_TTL.plus(Duration.ofMinutes(1)));
    // should expire first stream messages
    sot.window(messageCollector, taskCoordinator);
    // push messages to second stream with same key
    numbers.forEach(n -> sot.processAsync(new SecondStreamIME(n, n), messageCollector, taskCoordinator, taskCallback));
    assertTrue(output.isEmpty());
}

Example 19 with TaskCallback

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

the class TestWindowOperator method testCancellationOfOnceTrigger.

@Test
public void testCancellationOfOnceTrigger() throws Exception {
    OperatorSpecGraph sgb = this.getKeyedTumblingWindowStreamGraph(AccumulationMode.ACCUMULATING, Duration.ofSeconds(1), Triggers.count(2)).getOperatorSpecGraph();
    TestClock testClock = new TestClock();
    StreamOperatorTask task = new StreamOperatorTask(sgb, testClock);
    task.init(this.context);
    List<WindowPane<Integer, Collection<IntegerEnvelope>>> windowPanes = new ArrayList<>();
    MessageCollector messageCollector = envelope -> windowPanes.add((WindowPane<Integer, Collection<IntegerEnvelope>>) envelope.getMessage());
    task.processAsync(new IntegerEnvelope(1), messageCollector, taskCoordinator, taskCallback);
    task.processAsync(new IntegerEnvelope(1), messageCollector, taskCoordinator, taskCallback);
    Assert.assertEquals(windowPanes.size(), 1);
    Assert.assertEquals(windowPanes.get(0).getKey().getPaneId(), "0");
    Assert.assertEquals(windowPanes.get(0).getKey().getKey(), new Integer(1));
    Assert.assertEquals(windowPanes.get(0).getFiringType(), FiringType.EARLY);
    task.processAsync(new IntegerEnvelope(1), messageCollector, taskCoordinator, taskCallback);
    task.processAsync(new IntegerEnvelope(1), messageCollector, taskCoordinator, taskCallback);
    task.processAsync(new IntegerEnvelope(1), messageCollector, taskCoordinator, taskCallback);
    Assert.assertEquals(windowPanes.size(), 1);
    testClock.advanceTime(Duration.ofSeconds(1));
    task.window(messageCollector, taskCoordinator);
    Assert.assertEquals(windowPanes.size(), 2);
    Assert.assertEquals(windowPanes.get(0).getKey().getPaneId(), "0");
    Assert.assertEquals(windowPanes.get(1).getKey().getPaneId(), "0");
    Assert.assertEquals(windowPanes.get(1).getFiringType(), FiringType.DEFAULT);
    task.processAsync(new IntegerEnvelope(3), messageCollector, taskCoordinator, taskCallback);
    testClock.advanceTime(Duration.ofSeconds(1));
    task.window(messageCollector, taskCoordinator);
    Assert.assertEquals(windowPanes.size(), 3);
    Assert.assertEquals(windowPanes.get(2).getKey().getKey(), new Integer(3));
    Assert.assertEquals(windowPanes.get(2).getKey().getPaneId(), "1000");
    Assert.assertEquals(windowPanes.get(2).getFiringType(), FiringType.DEFAULT);
    Assert.assertEquals((windowPanes.get(2).getMessage()).size(), 1);
}

Example 20 with TaskCallback

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

the class TestWindowOperator method testCancellationOfAnyTrigger.

@Test
public void testCancellationOfAnyTrigger() throws Exception {
    OperatorSpecGraph sgb = this.getKeyedTumblingWindowStreamGraph(AccumulationMode.ACCUMULATING, Duration.ofSeconds(1), Triggers.any(Triggers.count(2), Triggers.timeSinceFirstMessage(Duration.ofMillis(500)))).getOperatorSpecGraph();
    TestClock testClock = new TestClock();
    StreamOperatorTask task = new StreamOperatorTask(sgb, testClock);
    task.init(this.context);
    List<WindowPane<Integer, Collection<IntegerEnvelope>>> windowPanes = new ArrayList<>();
    MessageCollector messageCollector = envelope -> windowPanes.add((WindowPane<Integer, Collection<IntegerEnvelope>>) envelope.getMessage());
    task.processAsync(new IntegerEnvelope(1), messageCollector, taskCoordinator, taskCallback);
    task.processAsync(new IntegerEnvelope(1), messageCollector, taskCoordinator, taskCallback);
    // assert that the count trigger fired
    Assert.assertEquals(windowPanes.size(), 1);
    // advance the timer to enable the triggering of the inner timeSinceFirstMessage trigger
    testClock.advanceTime(Duration.ofMillis(500));
    // assert that the triggering of the count trigger cancelled the inner timeSinceFirstMessage trigger
    Assert.assertEquals(windowPanes.size(), 1);
    task.processAsync(new IntegerEnvelope(1), messageCollector, taskCoordinator, taskCallback);
    task.processAsync(new IntegerEnvelope(1), messageCollector, taskCoordinator, taskCallback);
    task.processAsync(new IntegerEnvelope(1), messageCollector, taskCoordinator, taskCallback);
    // 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(), 2);
    Assert.assertEquals(windowPanes.get(1).getFiringType(), FiringType.DEFAULT);
    Assert.assertEquals(windowPanes.get(1).getKey().getKey(), new Integer(1));
    Assert.assertEquals(windowPanes.get(1).getKey().getPaneId(), "0");
    Assert.assertEquals((windowPanes.get(1).getMessage()).size(), 5);
    task.processAsync(new IntegerEnvelope(1), messageCollector, taskCoordinator, taskCallback);
    // advance timer by 500 millis to enable the inner timeSinceFirstMessage trigger
    testClock.advanceTime(Duration.ofMillis(500));
    task.window(messageCollector, taskCoordinator);
    Assert.assertEquals(windowPanes.size(), 3);
    Assert.assertEquals(windowPanes.get(2).getFiringType(), FiringType.EARLY);
    Assert.assertEquals(windowPanes.get(2).getKey().getKey(), new Integer(1));
    Assert.assertEquals(windowPanes.get(2).getKey().getPaneId(), "1000");
    // advance timer by > 500 millis to enable the default trigger
    testClock.advanceTime(Duration.ofMillis(900));
    task.window(messageCollector, taskCoordinator);
    Assert.assertEquals(windowPanes.size(), 4);
    Assert.assertEquals(windowPanes.get(3).getFiringType(), FiringType.DEFAULT);
    Assert.assertEquals(windowPanes.get(3).getKey().getKey(), new Integer(1));
    Assert.assertEquals(windowPanes.get(3).getKey().getPaneId(), "1000");
}