Examples with TimerId org.apache.beam.model.pipeline.v1.RunnerApi.ExecutableStagePayload.TimerId used on opensource projects

Example 6 with TimerId

use of org.apache.beam.model.pipeline.v1.RunnerApi.ExecutableStagePayload.TimerId in project beam by apache.

the class RemoteExecutionTest method testExecutionWithTimer.

@Test
public void testExecutionWithTimer() throws Exception {
    launchSdkHarness(PipelineOptionsFactory.create());
    Pipeline p = Pipeline.create();
    p.apply("impulse", Impulse.create()).apply("create", ParDo.of(new DoFn<byte[], KV<String, String>>() {

        @ProcessElement
        public void process(ProcessContext ctxt) {
        }
    })).setCoder(KvCoder.of(StringUtf8Coder.of(), StringUtf8Coder.of())).apply("timer", ParDo.of(new DoFn<KV<String, String>, KV<String, String>>() {

        @TimerId("event")
        private final TimerSpec eventTimerSpec = TimerSpecs.timer(TimeDomain.EVENT_TIME);

        @TimerId("processing")
        private final TimerSpec processingTimerSpec = TimerSpecs.timer(TimeDomain.PROCESSING_TIME);

        @ProcessElement
        public void processElement(ProcessContext context, @TimerId("event") Timer eventTimeTimer, @TimerId("processing") Timer processingTimeTimer) {
            context.output(KV.of("main" + context.element().getKey(), ""));
            eventTimeTimer.withOutputTimestamp(context.timestamp()).set(context.timestamp().plus(Duration.millis(1L)));
            processingTimeTimer.offset(Duration.millis(2L));
            processingTimeTimer.setRelative();
        }

        @OnTimer("event")
        public void eventTimer(OnTimerContext context, @Key String key, @TimerId("event") Timer eventTimeTimer, @TimerId("processing") Timer processingTimeTimer) {
            context.output(KV.of("event", key));
            eventTimeTimer.withOutputTimestamp(context.timestamp()).set(context.fireTimestamp().plus(Duration.millis(11L)));
            processingTimeTimer.offset(Duration.millis(12L));
            processingTimeTimer.setRelative();
        }

        @OnTimer("processing")
        public void processingTimer(OnTimerContext context, @Key String key, @TimerId("event") Timer eventTimeTimer, @TimerId("processing") Timer processingTimeTimer) {
            context.output(KV.of("processing", key));
            eventTimeTimer.withOutputTimestamp(context.timestamp()).set(context.fireTimestamp().plus(Duration.millis(21L)));
            processingTimeTimer.offset(Duration.millis(22L));
            processingTimeTimer.setRelative();
        }

        @OnWindowExpiration
        public void onWindowExpiration(@Key String key, OutputReceiver<KV<String, String>> outputReceiver) {
            outputReceiver.output(KV.of("onWindowExpiration", key));
        }
    })).apply("gbk", GroupByKey.create());
    RunnerApi.Pipeline pipelineProto = PipelineTranslation.toProto(p);
    FusedPipeline fused = GreedyPipelineFuser.fuse(pipelineProto);
    Optional<ExecutableStage> optionalStage = Iterables.tryFind(fused.getFusedStages(), (ExecutableStage stage) -> !stage.getTimers().isEmpty());
    checkState(optionalStage.isPresent(), "Expected a stage with timers.");
    ExecutableStage stage = optionalStage.get();
    ExecutableProcessBundleDescriptor descriptor = ProcessBundleDescriptors.fromExecutableStage("test_stage", stage, dataServer.getApiServiceDescriptor(), stateServer.getApiServiceDescriptor());
    BundleProcessor processor = controlClient.getProcessor(descriptor.getProcessBundleDescriptor(), descriptor.getRemoteInputDestinations(), stateDelegator, descriptor.getTimerSpecs());
    Map<String, Collection<WindowedValue<?>>> outputValues = new HashMap<>();
    Map<String, RemoteOutputReceiver<?>> outputReceivers = new HashMap<>();
    for (Entry<String, Coder> remoteOutputCoder : descriptor.getRemoteOutputCoders().entrySet()) {
        List<WindowedValue<?>> outputContents = Collections.synchronizedList(new ArrayList<>());
        outputValues.put(remoteOutputCoder.getKey(), outputContents);
        outputReceivers.put(remoteOutputCoder.getKey(), RemoteOutputReceiver.of((Coder<WindowedValue<?>>) remoteOutputCoder.getValue(), outputContents::add));
    }
    Map<KV<String, String>, Collection<org.apache.beam.runners.core.construction.Timer<?>>> timerValues = new HashMap<>();
    Map<KV<String, String>, RemoteOutputReceiver<org.apache.beam.runners.core.construction.Timer<?>>> timerReceivers = new HashMap<>();
    for (Map.Entry<String, Map<String, ProcessBundleDescriptors.TimerSpec>> transformTimerSpecs : descriptor.getTimerSpecs().entrySet()) {
        for (ProcessBundleDescriptors.TimerSpec timerSpec : transformTimerSpecs.getValue().values()) {
            KV<String, String> key = KV.of(timerSpec.transformId(), timerSpec.timerId());
            List<org.apache.beam.runners.core.construction.Timer<?>> outputContents = Collections.synchronizedList(new ArrayList<>());
            timerValues.put(key, outputContents);
            timerReceivers.put(key, RemoteOutputReceiver.of((Coder<org.apache.beam.runners.core.construction.Timer<?>>) timerSpec.coder(), outputContents::add));
        }
    }
    ProcessBundleDescriptors.TimerSpec eventTimerSpec = null;
    ProcessBundleDescriptors.TimerSpec processingTimerSpec = null;
    ProcessBundleDescriptors.TimerSpec onWindowExpirationSpec = null;
    for (Map<String, ProcessBundleDescriptors.TimerSpec> timerSpecs : descriptor.getTimerSpecs().values()) {
        for (ProcessBundleDescriptors.TimerSpec timerSpec : timerSpecs.values()) {
            if ("onWindowExpiration0".equals(timerSpec.timerId())) {
                onWindowExpirationSpec = timerSpec;
            } else if (TimeDomain.EVENT_TIME.equals(timerSpec.getTimerSpec().getTimeDomain())) {
                eventTimerSpec = timerSpec;
            } else if (TimeDomain.PROCESSING_TIME.equals(timerSpec.getTimerSpec().getTimeDomain())) {
                processingTimerSpec = timerSpec;
            } else {
                fail(String.format("Unknown timer specification %s", timerSpec));
            }
        }
    }
    // Set the current system time to a fixed value to get stable values for processing time timer
    // output.
    DateTimeUtils.setCurrentMillisFixed(BoundedWindow.TIMESTAMP_MIN_VALUE.getMillis() + 10000L);
    try {
        try (RemoteBundle bundle = processor.newBundle(outputReceivers, timerReceivers, StateRequestHandler.unsupported(), BundleProgressHandler.ignored(), null, null)) {
            Iterables.getOnlyElement(bundle.getInputReceivers().values()).accept(valueInGlobalWindow(KV.of("X", "X")));
            bundle.getTimerReceivers().get(KV.of(eventTimerSpec.transformId(), eventTimerSpec.timerId())).accept(timerForTest("Y", 1000L, 100L));
            bundle.getTimerReceivers().get(KV.of(processingTimerSpec.transformId(), processingTimerSpec.timerId())).accept(timerForTest("Z", 2000L, 200L));
            bundle.getTimerReceivers().get(KV.of(onWindowExpirationSpec.transformId(), onWindowExpirationSpec.timerId())).accept(timerForTest("key", 5001L, 5000L));
        }
        String mainOutputTransform = Iterables.getOnlyElement(descriptor.getRemoteOutputCoders().keySet());
        assertThat(outputValues.get(mainOutputTransform), containsInAnyOrder(valueInGlobalWindow(KV.of("mainX", "")), WindowedValue.timestampedValueInGlobalWindow(KV.of("event", "Y"), BoundedWindow.TIMESTAMP_MIN_VALUE.plus(Duration.millis(100L))), WindowedValue.timestampedValueInGlobalWindow(KV.of("processing", "Z"), BoundedWindow.TIMESTAMP_MIN_VALUE.plus(Duration.millis(200L))), WindowedValue.timestampedValueInGlobalWindow(KV.of("onWindowExpiration", "key"), BoundedWindow.TIMESTAMP_MIN_VALUE.plus(Duration.millis(5000L)))));
        assertThat(timerValues.get(KV.of(eventTimerSpec.transformId(), eventTimerSpec.timerId())), containsInAnyOrder(timerForTest("X", 1L, 0L), timerForTest("Y", 1011L, 100L), timerForTest("Z", 2021L, 200L)));
        assertThat(timerValues.get(KV.of(processingTimerSpec.transformId(), processingTimerSpec.timerId())), containsInAnyOrder(timerForTest("X", 10002L, 0L), timerForTest("Y", 10012L, 100L), timerForTest("Z", 10022L, 200L)));
    } finally {
        DateTimeUtils.setCurrentMillisSystem();
    }
}