Examples with StreamApplication org.apache.samza.application.StreamApplication used on opensource projects

Example 6 with StreamApplication

use of org.apache.samza.application.StreamApplication 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 7 with StreamApplication

use of org.apache.samza.application.StreamApplication 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);
}

Example 8 with StreamApplication

use of org.apache.samza.application.StreamApplication 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 9 with StreamApplication

use of org.apache.samza.application.StreamApplication 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 10 with StreamApplication

use of org.apache.samza.application.StreamApplication in project samza by apache.

the class TestWindowOperator method testSessionWindowsAccumulatingMode.

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