use of org.apache.beam.runners.core.construction.graph.TimerReference in project beam by apache.
the class ProcessBundleDescriptorsTest method testLengthPrefixingOfKeyCoderInStatefulExecutableStage.
/**
* Tests that a stateful stage will wrap the key coder of a stateful transform in a
* LengthPrefixCoder.
*/
@Test
public void testLengthPrefixingOfKeyCoderInStatefulExecutableStage() throws Exception {
// Add another stateful stage with a non-standard key coder
Pipeline p = Pipeline.create();
Coder<Void> keycoder = VoidCoder.of();
assertThat(ModelCoderRegistrar.isKnownCoder(keycoder), is(false));
p.apply("impulse", Impulse.create()).apply("create", ParDo.of(new DoFn<byte[], KV<Void, String>>() {
@ProcessElement
public void process(ProcessContext ctxt) {
}
})).setCoder(KvCoder.of(keycoder, StringUtf8Coder.of())).apply("userState", ParDo.of(new DoFn<KV<Void, String>, KV<Void, String>>() {
@StateId("stateId")
private final StateSpec<BagState<String>> bufferState = StateSpecs.bag(StringUtf8Coder.of());
@TimerId("timerId")
private final TimerSpec timerSpec = TimerSpecs.timer(TimeDomain.EVENT_TIME);
@ProcessElement
public void processElement(@Element KV<Void, String> element, @StateId("stateId") BagState<String> state, @TimerId("timerId") Timer timer, OutputReceiver<KV<Void, String>> r) {
}
@OnTimer("timerId")
public void onTimer() {
}
})).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.getUserStates().stream().anyMatch(spec -> spec.localName().equals("stateId")));
checkState(optionalStage.isPresent(), "Expected a stage with user state.");
ExecutableStage stage = optionalStage.get();
PipelineNode.PCollectionNode inputPCollection = stage.getInputPCollection();
// Ensure original key coder is not a LengthPrefixCoder
Map<String, RunnerApi.Coder> stageCoderMap = stage.getComponents().getCodersMap();
RunnerApi.Coder originalMainInputCoder = stageCoderMap.get(inputPCollection.getPCollection().getCoderId());
String originalKeyCoderId = ModelCoders.getKvCoderComponents(originalMainInputCoder).keyCoderId();
RunnerApi.Coder originalKeyCoder = stageCoderMap.get(originalKeyCoderId);
assertThat(originalKeyCoder.getSpec().getUrn(), is(CoderTranslation.JAVA_SERIALIZED_CODER_URN));
// Now create ProcessBundleDescriptor and check for the LengthPrefixCoder around the key coder
BeamFnApi.ProcessBundleDescriptor pbd = ProcessBundleDescriptors.fromExecutableStage("test_stage", stage, Endpoints.ApiServiceDescriptor.getDefaultInstance()).getProcessBundleDescriptor();
Map<String, RunnerApi.Coder> pbsCoderMap = pbd.getCodersMap();
RunnerApi.Coder pbsMainInputCoder = pbsCoderMap.get(pbd.getPcollectionsOrThrow(inputPCollection.getId()).getCoderId());
String keyCoderId = ModelCoders.getKvCoderComponents(pbsMainInputCoder).keyCoderId();
RunnerApi.Coder keyCoder = pbsCoderMap.get(keyCoderId);
ensureLengthPrefixed(keyCoder, originalKeyCoder, pbsCoderMap);
TimerReference timerRef = Iterables.getOnlyElement(stage.getTimers());
String timerTransformId = timerRef.transform().getId();
RunnerApi.ParDoPayload parDoPayload = RunnerApi.ParDoPayload.parseFrom(pbd.getTransformsOrThrow(timerTransformId).getSpec().getPayload());
RunnerApi.TimerFamilySpec timerSpec = parDoPayload.getTimerFamilySpecsOrThrow(timerRef.localName());
RunnerApi.Coder timerCoder = pbsCoderMap.get(timerSpec.getTimerFamilyCoderId());
String timerKeyCoderId = timerCoder.getComponentCoderIds(0);
RunnerApi.Coder timerKeyCoder = pbsCoderMap.get(timerKeyCoderId);
ensureLengthPrefixed(timerKeyCoder, originalKeyCoder, pbsCoderMap);
}
use of org.apache.beam.runners.core.construction.graph.TimerReference in project beam by apache.
the class ProcessBundleDescriptors method forTimerSpecs.
private static Map<String, Map<String, TimerSpec>> forTimerSpecs(ExecutableStage stage, Components.Builder components) throws IOException {
ImmutableTable.Builder<String, String, TimerSpec> idsToSpec = ImmutableTable.builder();
for (TimerReference timerReference : stage.getTimers()) {
RunnerApi.ParDoPayload payload = RunnerApi.ParDoPayload.parseFrom(timerReference.transform().getTransform().getSpec().getPayload());
RunnerApi.TimerFamilySpec timerFamilySpec = payload.getTimerFamilySpecsOrThrow(timerReference.localName());
org.apache.beam.sdk.state.TimerSpec spec;
switch(timerFamilySpec.getTimeDomain()) {
case EVENT_TIME:
spec = TimerSpecs.timer(TimeDomain.EVENT_TIME);
break;
case PROCESSING_TIME:
spec = TimerSpecs.timer(TimeDomain.PROCESSING_TIME);
break;
default:
throw new IllegalArgumentException(String.format("Unknown or unsupported time domain %s", timerFamilySpec.getTimeDomain()));
}
for (WireCoderSetting wireCoderSetting : stage.getWireCoderSettings()) {
if (wireCoderSetting.hasTimer() && wireCoderSetting.getTimer().getTransformId().equals(timerReference.transform().getId()) && wireCoderSetting.getTimer().getLocalName().equals(timerReference.localName())) {
throw new UnsupportedOperationException("WireCoderSetting for timer is yet to be supported.");
}
}
String originalTimerCoderId = timerFamilySpec.getTimerFamilyCoderId();
String sdkCoderId = LengthPrefixUnknownCoders.addLengthPrefixedCoder(originalTimerCoderId, components, false);
String runnerCoderId = LengthPrefixUnknownCoders.addLengthPrefixedCoder(originalTimerCoderId, components, true);
Coder<?> timerCoder = RehydratedComponents.forComponents(components.build()).getCoder(runnerCoderId);
checkArgument(timerCoder instanceof Timer.Coder, "Expected a timer coder but received %s.", timerCoder);
RunnerApi.FunctionSpec.Builder updatedSpec = components.getTransformsOrThrow(timerReference.transform().getId()).toBuilder().getSpecBuilder();
RunnerApi.ParDoPayload.Builder updatedPayload = RunnerApi.ParDoPayload.parseFrom(updatedSpec.getPayload()).toBuilder();
updatedPayload.putTimerFamilySpecs(timerReference.localName(), updatedPayload.getTimerFamilySpecsOrThrow(timerReference.localName()).toBuilder().setTimerFamilyCoderId(sdkCoderId).build());
updatedSpec.setPayload(updatedPayload.build().toByteString());
components.putTransforms(timerReference.transform().getId(), // and not the original
components.getTransformsOrThrow(timerReference.transform().getId()).toBuilder().setSpec(updatedSpec).build());
idsToSpec.put(timerReference.transform().getId(), timerReference.localName(), TimerSpec.of(timerReference.transform().getId(), timerReference.localName(), spec, (Coder) timerCoder));
}
return idsToSpec.build().rowMap();
}
use of org.apache.beam.runners.core.construction.graph.TimerReference in project beam by apache.
the class CreateExecutableStageNodeFunction method apply.
@Override
public Node apply(MutableNetwork<Node, Edge> input) {
for (Node node : input.nodes()) {
if (node instanceof RemoteGrpcPortNode || node instanceof ParallelInstructionNode || node instanceof InstructionOutputNode) {
continue;
}
throw new IllegalArgumentException(String.format("Network contains unknown type of node: %s", input));
}
// Fix all non output nodes to have named edges.
for (Node node : input.nodes()) {
if (node instanceof InstructionOutputNode) {
continue;
}
for (Node successor : input.successors(node)) {
for (Edge edge : input.edgesConnecting(node, successor)) {
if (edge instanceof DefaultEdge) {
input.removeEdge(edge);
input.addEdge(node, successor, MultiOutputInfoEdge.create(new MultiOutputInfo().setTag(idGenerator.getId())));
}
}
}
}
RunnerApi.Components.Builder componentsBuilder = RunnerApi.Components.newBuilder();
componentsBuilder.mergeFrom(this.pipeline.getComponents());
// Default to use the Java environment if pipeline doesn't have environment specified.
if (pipeline.getComponents().getEnvironmentsMap().isEmpty()) {
String envId = Environments.JAVA_SDK_HARNESS_ENVIRONMENT.getUrn() + idGenerator.getId();
componentsBuilder.putEnvironments(envId, Environments.JAVA_SDK_HARNESS_ENVIRONMENT);
}
// By default, use GlobalWindow for all languages.
// For java, if there is a IntervalWindowCoder, then use FixedWindow instead.
// TODO: should get real WindowingStategy from pipeline proto.
String globalWindowingStrategyId = "generatedGlobalWindowingStrategy" + idGenerator.getId();
String intervalWindowEncodingWindowingStrategyId = "generatedIntervalWindowEncodingWindowingStrategy" + idGenerator.getId();
SdkComponents sdkComponents = SdkComponents.create(pipeline.getComponents(), null);
try {
registerWindowingStrategy(globalWindowingStrategyId, WindowingStrategy.globalDefault(), componentsBuilder, sdkComponents);
registerWindowingStrategy(intervalWindowEncodingWindowingStrategyId, WindowingStrategy.of(FixedWindows.of(Duration.standardSeconds(1))), componentsBuilder, sdkComponents);
} catch (IOException exc) {
throw new RuntimeException("Could not convert default windowing stratey to proto", exc);
}
Map<Node, String> nodesToPCollections = new HashMap<>();
ImmutableMap.Builder<String, NameContext> ptransformIdToNameContexts = ImmutableMap.builder();
ImmutableMap.Builder<String, Iterable<SideInputInfo>> ptransformIdToSideInputInfos = ImmutableMap.builder();
ImmutableMap.Builder<String, Iterable<PCollectionView<?>>> ptransformIdToPCollectionViews = ImmutableMap.builder();
// A field of ExecutableStage which includes the PCollection goes to worker side.
Set<PCollectionNode> executableStageOutputs = new HashSet<>();
// A field of ExecutableStage which includes the PCollection goes to runner side.
Set<PCollectionNode> executableStageInputs = new HashSet<>();
for (InstructionOutputNode node : Iterables.filter(input.nodes(), InstructionOutputNode.class)) {
InstructionOutput instructionOutput = node.getInstructionOutput();
String coderId = "generatedCoder" + idGenerator.getId();
String windowingStrategyId;
try (ByteString.Output output = ByteString.newOutput()) {
try {
Coder<?> javaCoder = CloudObjects.coderFromCloudObject(CloudObject.fromSpec(instructionOutput.getCodec()));
Coder<?> elementCoder = ((WindowedValueCoder<?>) javaCoder).getValueCoder();
sdkComponents.registerCoder(elementCoder);
RunnerApi.Coder coderProto = CoderTranslation.toProto(elementCoder, sdkComponents);
componentsBuilder.putCoders(coderId, coderProto);
// For now, Dataflow runner harness only deal with FixedWindow.
if (javaCoder instanceof FullWindowedValueCoder) {
FullWindowedValueCoder<?> windowedValueCoder = (FullWindowedValueCoder<?>) javaCoder;
Coder<?> windowCoder = windowedValueCoder.getWindowCoder();
if (windowCoder instanceof IntervalWindowCoder) {
windowingStrategyId = intervalWindowEncodingWindowingStrategyId;
} else if (windowCoder instanceof GlobalWindow.Coder) {
windowingStrategyId = globalWindowingStrategyId;
} else {
throw new UnsupportedOperationException(String.format("Dataflow portable runner harness doesn't support windowing with %s", windowCoder));
}
} else {
throw new UnsupportedOperationException("Dataflow portable runner harness only supports FullWindowedValueCoder");
}
} catch (IOException e) {
throw new IllegalArgumentException(String.format("Unable to encode coder %s for output %s", instructionOutput.getCodec(), instructionOutput), e);
} catch (Exception e) {
// Coder probably wasn't a java coder
OBJECT_MAPPER.writeValue(output, instructionOutput.getCodec());
componentsBuilder.putCoders(coderId, RunnerApi.Coder.newBuilder().setSpec(RunnerApi.FunctionSpec.newBuilder().setPayload(output.toByteString())).build());
// For non-java coder, hope it's GlobalWindows by default.
// TODO(BEAM-6231): Actually discover the right windowing strategy.
windowingStrategyId = globalWindowingStrategyId;
}
} catch (IOException e) {
throw new IllegalArgumentException(String.format("Unable to encode coder %s for output %s", instructionOutput.getCodec(), instructionOutput), e);
}
// TODO(BEAM-6275): Set correct IsBounded on generated PCollections
String pcollectionId = node.getPcollectionId();
RunnerApi.PCollection pCollection = RunnerApi.PCollection.newBuilder().setCoderId(coderId).setWindowingStrategyId(windowingStrategyId).setIsBounded(RunnerApi.IsBounded.Enum.BOUNDED).build();
nodesToPCollections.put(node, pcollectionId);
componentsBuilder.putPcollections(pcollectionId, pCollection);
// is set
if (isExecutableStageOutputPCollection(input, node)) {
executableStageOutputs.add(PipelineNode.pCollection(pcollectionId, pCollection));
}
if (isExecutableStageInputPCollection(input, node)) {
executableStageInputs.add(PipelineNode.pCollection(pcollectionId, pCollection));
}
}
componentsBuilder.putAllCoders(sdkComponents.toComponents().getCodersMap());
Set<PTransformNode> executableStageTransforms = new HashSet<>();
Set<TimerReference> executableStageTimers = new HashSet<>();
List<UserStateId> userStateIds = new ArrayList<>();
Set<SideInputReference> executableStageSideInputs = new HashSet<>();
for (ParallelInstructionNode node : Iterables.filter(input.nodes(), ParallelInstructionNode.class)) {
ImmutableMap.Builder<String, PCollectionNode> sideInputIds = ImmutableMap.builder();
ParallelInstruction parallelInstruction = node.getParallelInstruction();
String ptransformId = "generatedPtransform" + idGenerator.getId();
ptransformIdToNameContexts.put(ptransformId, NameContext.create(null, parallelInstruction.getOriginalName(), parallelInstruction.getSystemName(), parallelInstruction.getName()));
RunnerApi.PTransform.Builder pTransform = RunnerApi.PTransform.newBuilder();
RunnerApi.FunctionSpec.Builder transformSpec = RunnerApi.FunctionSpec.newBuilder();
List<String> timerIds = new ArrayList<>();
if (parallelInstruction.getParDo() != null) {
ParDoInstruction parDoInstruction = parallelInstruction.getParDo();
CloudObject userFnSpec = CloudObject.fromSpec(parDoInstruction.getUserFn());
String userFnClassName = userFnSpec.getClassName();
if (userFnClassName.equals("CombineValuesFn") || userFnClassName.equals("KeyedCombineFn")) {
transformSpec = transformCombineValuesFnToFunctionSpec(userFnSpec);
ptransformIdToPCollectionViews.put(ptransformId, Collections.emptyList());
} else {
String parDoPTransformId = getString(userFnSpec, PropertyNames.SERIALIZED_FN);
RunnerApi.PTransform parDoPTransform = pipeline.getComponents().getTransformsOrDefault(parDoPTransformId, null);
// TODO: only the non-null branch should exist; for migration ease only
if (parDoPTransform != null) {
checkArgument(parDoPTransform.getSpec().getUrn().equals(PTransformTranslation.PAR_DO_TRANSFORM_URN), "Found transform \"%s\" for ParallelDo instruction, " + " but that transform had unexpected URN \"%s\" (expected \"%s\")", parDoPTransformId, parDoPTransform.getSpec().getUrn(), PTransformTranslation.PAR_DO_TRANSFORM_URN);
RunnerApi.ParDoPayload parDoPayload;
try {
parDoPayload = RunnerApi.ParDoPayload.parseFrom(parDoPTransform.getSpec().getPayload());
} catch (InvalidProtocolBufferException exc) {
throw new RuntimeException("ParDo did not have a ParDoPayload", exc);
}
// user timers and user state.
for (Map.Entry<String, RunnerApi.TimerFamilySpec> entry : parDoPayload.getTimerFamilySpecsMap().entrySet()) {
timerIds.add(entry.getKey());
}
for (Map.Entry<String, RunnerApi.StateSpec> entry : parDoPayload.getStateSpecsMap().entrySet()) {
UserStateId.Builder builder = UserStateId.newBuilder();
builder.setTransformId(parDoPTransformId);
builder.setLocalName(entry.getKey());
userStateIds.add(builder.build());
}
// To facilitate the creation of Set executableStageSideInputs.
for (String sideInputTag : parDoPayload.getSideInputsMap().keySet()) {
String sideInputPCollectionId = parDoPTransform.getInputsOrThrow(sideInputTag);
RunnerApi.PCollection sideInputPCollection = pipeline.getComponents().getPcollectionsOrThrow(sideInputPCollectionId);
pTransform.putInputs(sideInputTag, sideInputPCollectionId);
PCollectionNode pCollectionNode = PipelineNode.pCollection(sideInputPCollectionId, sideInputPCollection);
sideInputIds.put(sideInputTag, pCollectionNode);
}
// To facilitate the creation of Map(ptransformId -> pCollectionView), which is
// required by constructing an ExecutableStageNode.
ImmutableList.Builder<PCollectionView<?>> pcollectionViews = ImmutableList.builder();
for (Map.Entry<String, RunnerApi.SideInput> sideInputEntry : parDoPayload.getSideInputsMap().entrySet()) {
pcollectionViews.add(RegisterNodeFunction.transformSideInputForRunner(pipeline, parDoPTransform, sideInputEntry.getKey(), sideInputEntry.getValue()));
}
ptransformIdToPCollectionViews.put(ptransformId, pcollectionViews.build());
transformSpec.setUrn(PTransformTranslation.PAR_DO_TRANSFORM_URN).setPayload(parDoPayload.toByteString());
} else {
// legacy path - bytes are the FunctionSpec's payload field, basically, and
// SDKs expect it in the PTransform's payload field
byte[] userFnBytes = getBytes(userFnSpec, PropertyNames.SERIALIZED_FN);
transformSpec.setUrn(ParDoTranslation.CUSTOM_JAVA_DO_FN_URN).setPayload(ByteString.copyFrom(userFnBytes));
}
if (parDoInstruction.getSideInputs() != null) {
ptransformIdToSideInputInfos.put(ptransformId, forSideInputInfos(parDoInstruction.getSideInputs(), true));
}
}
} else if (parallelInstruction.getRead() != null) {
ReadInstruction readInstruction = parallelInstruction.getRead();
CloudObject sourceSpec = CloudObject.fromSpec(CloudSourceUtils.flattenBaseSpecs(readInstruction.getSource()).getSpec());
// TODO: Need to plumb through the SDK specific function spec.
transformSpec.setUrn(JAVA_SOURCE_URN);
try {
byte[] serializedSource = Base64.getDecoder().decode(getString(sourceSpec, SERIALIZED_SOURCE));
ByteString sourceByteString = ByteString.copyFrom(serializedSource);
transformSpec.setPayload(sourceByteString);
} catch (Exception e) {
throw new IllegalArgumentException(String.format("Unable to process Read %s", parallelInstruction), e);
}
} else if (parallelInstruction.getFlatten() != null) {
transformSpec.setUrn(PTransformTranslation.FLATTEN_TRANSFORM_URN);
} else {
throw new IllegalArgumentException(String.format("Unknown type of ParallelInstruction %s", parallelInstruction));
}
// predecessor in a ParDo. This PCollection is called the "main input".
for (Node predecessorOutput : input.predecessors(node)) {
pTransform.putInputs("generatedInput" + idGenerator.getId(), nodesToPCollections.get(predecessorOutput));
}
for (Edge edge : input.outEdges(node)) {
Node nodeOutput = input.incidentNodes(edge).target();
MultiOutputInfoEdge edge2 = (MultiOutputInfoEdge) edge;
pTransform.putOutputs(edge2.getMultiOutputInfo().getTag(), nodesToPCollections.get(nodeOutput));
}
pTransform.setSpec(transformSpec);
PTransformNode pTransformNode = PipelineNode.pTransform(ptransformId, pTransform.build());
executableStageTransforms.add(pTransformNode);
for (String timerId : timerIds) {
executableStageTimers.add(TimerReference.of(pTransformNode, timerId));
}
ImmutableMap<String, PCollectionNode> sideInputIdToPCollectionNodes = sideInputIds.build();
for (String sideInputTag : sideInputIdToPCollectionNodes.keySet()) {
SideInputReference sideInputReference = SideInputReference.of(pTransformNode, sideInputTag, sideInputIdToPCollectionNodes.get(sideInputTag));
executableStageSideInputs.add(sideInputReference);
}
executableStageTransforms.add(pTransformNode);
}
if (executableStageInputs.size() != 1) {
throw new UnsupportedOperationException("ExecutableStage only support one input PCollection");
}
PCollectionNode executableInput = executableStageInputs.iterator().next();
RunnerApi.Components executableStageComponents = componentsBuilder.build();
// Get Environment from ptransform, otherwise, use JAVA_SDK_HARNESS_ENVIRONMENT as default.
Environment executableStageEnv = getEnvironmentFromPTransform(executableStageComponents, executableStageTransforms);
if (executableStageEnv == null) {
executableStageEnv = Environments.JAVA_SDK_HARNESS_ENVIRONMENT;
}
Set<UserStateReference> executableStageUserStateReference = new HashSet<>();
for (UserStateId userStateId : userStateIds) {
executableStageUserStateReference.add(UserStateReference.fromUserStateId(userStateId, executableStageComponents));
}
ExecutableStage executableStage = ImmutableExecutableStage.ofFullComponents(executableStageComponents, executableStageEnv, executableInput, executableStageSideInputs, executableStageUserStateReference, executableStageTimers, executableStageTransforms, executableStageOutputs, DEFAULT_WIRE_CODER_SETTINGS);
return ExecutableStageNode.create(executableStage, ptransformIdToNameContexts.build(), ptransformIdToSideInputInfos.build(), ptransformIdToPCollectionViews.build());
}
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