Examples with Coder org.apache.beam.sdk.coders.Coder used on opensource projects

Example 86 with Coder

use of org.apache.beam.sdk.coders.Coder in project beam by apache.

the class GroupAlsoByWindowParDoFnFactory method create.

@Override
public ParDoFn create(PipelineOptions options, CloudObject cloudUserFn, @Nullable List<SideInputInfo> sideInputInfos, TupleTag<?> mainOutputTag, Map<TupleTag<?>, Integer> outputTupleTagsToReceiverIndices, final DataflowExecutionContext<?> executionContext, DataflowOperationContext operationContext) throws Exception {
    Map.Entry<TupleTag<?>, Integer> entry = Iterables.getOnlyElement(outputTupleTagsToReceiverIndices.entrySet());
    checkArgument(entry.getKey().equals(mainOutputTag), "Output tags should reference only the main output tag: %s vs %s", entry.getKey(), mainOutputTag);
    checkArgument(entry.getValue() == 0, "There should be a single receiver, but using receiver index %s", entry.getValue());
    byte[] encodedWindowingStrategy = getBytes(cloudUserFn, PropertyNames.SERIALIZED_FN);
    WindowingStrategy windowingStrategy;
    try {
        windowingStrategy = deserializeWindowingStrategy(encodedWindowingStrategy);
    } catch (Exception e) {
        // TODO: Catch block disappears, becoming an error once Python SDK is compliant.
        if (DataflowRunner.hasExperiment(options.as(DataflowPipelineDebugOptions.class), "beam_fn_api")) {
            LOG.info("FnAPI: Unable to deserialize windowing strategy, assuming default", e);
            windowingStrategy = WindowingStrategy.globalDefault();
        } else {
            throw e;
        }
    }
    byte[] serializedCombineFn = getBytes(cloudUserFn, WorkerPropertyNames.COMBINE_FN, null);
    AppliedCombineFn<?, ?, ?, ?> combineFn = null;
    if (serializedCombineFn != null) {
        Object combineFnObj = SerializableUtils.deserializeFromByteArray(serializedCombineFn, "serialized combine fn");
        checkArgument(combineFnObj instanceof AppliedCombineFn, "unexpected kind of AppliedCombineFn: " + combineFnObj.getClass().getName());
        combineFn = (AppliedCombineFn<?, ?, ?, ?>) combineFnObj;
    }
    Map<String, Object> inputCoderObject = getObject(cloudUserFn, WorkerPropertyNames.INPUT_CODER);
    Coder<?> inputCoder = CloudObjects.coderFromCloudObject(CloudObject.fromSpec(inputCoderObject));
    checkArgument(inputCoder instanceof WindowedValueCoder, "Expected WindowedValueCoder for inputCoder, got: " + inputCoder.getClass().getName());
    @SuppressWarnings("unchecked") WindowedValueCoder<?> windowedValueCoder = (WindowedValueCoder<?>) inputCoder;
    Coder<?> elemCoder = windowedValueCoder.getValueCoder();
    checkArgument(elemCoder instanceof KvCoder, "Expected KvCoder for inputCoder, got: " + elemCoder.getClass().getName());
    @SuppressWarnings("unchecked") KvCoder<?, ?> kvCoder = (KvCoder<?, ?>) elemCoder;
    boolean isStreamingPipeline = options.as(StreamingOptions.class).isStreaming();
    SideInputReader sideInputReader = NullSideInputReader.empty();
    @Nullable AppliedCombineFn<?, ?, ?, ?> maybeMergingCombineFn = null;
    if (combineFn != null) {
        sideInputReader = executionContext.getSideInputReader(sideInputInfos, combineFn.getSideInputViews(), operationContext);
        String phase = getString(cloudUserFn, WorkerPropertyNames.PHASE, CombinePhase.ALL);
        checkArgument(phase.equals(CombinePhase.ALL) || phase.equals(CombinePhase.MERGE), "Unexpected phase: %s", phase);
        if (phase.equals(CombinePhase.MERGE)) {
            maybeMergingCombineFn = makeAppliedMergingFunction(combineFn);
        } else {
            maybeMergingCombineFn = combineFn;
        }
    }
    StateInternalsFactory<?> stateInternalsFactory = key -> executionContext.getStepContext(operationContext).stateInternals();
    // This will be a GABW Fn for either batch or streaming, with combiner in it or not
    GroupAlsoByWindowFn<?, ?> fn;
    // This will be a FakeKeyedWorkItemCoder for streaming or null for batch
    Coder<?> gabwInputCoder;
    // TODO: do not do this with mess of "if"
    if (isStreamingPipeline) {
        if (maybeMergingCombineFn == null) {
            fn = StreamingGroupAlsoByWindowsDoFns.createForIterable(windowingStrategy, stateInternalsFactory, ((KvCoder) kvCoder).getValueCoder());
            gabwInputCoder = WindmillKeyedWorkItem.FakeKeyedWorkItemCoder.of(kvCoder);
        } else {
            fn = StreamingGroupAlsoByWindowsDoFns.create(windowingStrategy, stateInternalsFactory, (AppliedCombineFn) maybeMergingCombineFn, ((KvCoder) kvCoder).getKeyCoder());
            gabwInputCoder = WindmillKeyedWorkItem.FakeKeyedWorkItemCoder.of(((AppliedCombineFn) maybeMergingCombineFn).getKvCoder());
        }
    } else {
        if (maybeMergingCombineFn == null) {
            fn = BatchGroupAlsoByWindowsDoFns.createForIterable(windowingStrategy, stateInternalsFactory, ((KvCoder) kvCoder).getValueCoder());
            gabwInputCoder = null;
        } else {
            fn = BatchGroupAlsoByWindowsDoFns.create(windowingStrategy, (AppliedCombineFn) maybeMergingCombineFn);
            gabwInputCoder = null;
        }
    }
    // TODO: or anyhow related to it, do not do this with mess of "if"
    if (maybeMergingCombineFn != null) {
        return new GroupAlsoByWindowsParDoFn(options, fn, windowingStrategy, ((AppliedCombineFn) maybeMergingCombineFn).getSideInputViews(), gabwInputCoder, sideInputReader, mainOutputTag, executionContext.getStepContext(operationContext));
    } else {
        return new GroupAlsoByWindowsParDoFn(options, fn, windowingStrategy, null, gabwInputCoder, sideInputReader, mainOutputTag, executionContext.getStepContext(operationContext));
    }
}

Example 87 with Coder

use of org.apache.beam.sdk.coders.Coder in project beam by apache.

the class StreamingKeyedWorkItemSideInputDoFnRunnerTest method createRunner.

@SuppressWarnings("unchecked")
private StreamingKeyedWorkItemSideInputDoFnRunner<String, Integer, KV<String, Integer>, IntervalWindow> createRunner(DoFnRunners.OutputManager outputManager) throws Exception {
    CoderRegistry registry = CoderRegistry.createDefault();
    Coder<String> keyCoder = StringUtf8Coder.of();
    Coder<Integer> inputCoder = BigEndianIntegerCoder.of();
    AppliedCombineFn<String, Integer, ?, Integer> combineFn = AppliedCombineFn.withInputCoder(Sum.ofIntegers(), registry, KvCoder.of(keyCoder, inputCoder));
    WindowingStrategy<Object, IntervalWindow> windowingStrategy = WindowingStrategy.of(WINDOW_FN);
    @SuppressWarnings("rawtypes") StreamingGroupAlsoByWindowViaWindowSetFn doFn = (StreamingGroupAlsoByWindowViaWindowSetFn) StreamingGroupAlsoByWindowsDoFns.create(windowingStrategy, key -> state, combineFn, keyCoder);
    DoFnRunner<KeyedWorkItem<String, Integer>, KV<String, Integer>> simpleDoFnRunner = new GroupAlsoByWindowFnRunner<>(PipelineOptionsFactory.create(), doFn.asDoFn(), mockSideInputReader, outputManager, mainOutputTag, stepContext);
    return new StreamingKeyedWorkItemSideInputDoFnRunner<String, Integer, KV<String, Integer>, IntervalWindow>(simpleDoFnRunner, keyCoder, sideInputFetcher, stepContext);
}

Example 88 with Coder

use of org.apache.beam.sdk.coders.Coder in project beam by apache.

the class PartialGroupByKeyParDoFnsTest method testPartialGroupByKeyWithCombinerAndSideInputs.

@Test
public void testPartialGroupByKeyWithCombinerAndSideInputs() throws Exception {
    Coder keyCoder = StringUtf8Coder.of();
    Coder valueCoder = BigEndianIntegerCoder.of();
    TestOutputReceiver receiver = new TestOutputReceiver(new ElementByteSizeObservableCoder(WindowedValue.getValueOnlyCoder(KvCoder.of(keyCoder, valueCoder))), counterSet, NameContextsForTests.nameContextForTest());
    Combiner<WindowedValue<String>, Integer, Integer, Integer> combineFn = new TestCombiner();
    ParDoFn pgbkParDoFn = new StreamingSideInputPGBKParDoFn(GroupingTables.combining(new WindowingCoderGroupingKeyCreator(keyCoder), PairInfo.create(), combineFn, new CoderSizeEstimator(WindowedValue.getValueOnlyCoder(keyCoder)), new CoderSizeEstimator(valueCoder)), receiver, mockSideInputFetcher);
    Set<BoundedWindow> readyWindows = ImmutableSet.<BoundedWindow>of(GlobalWindow.INSTANCE);
    when(mockSideInputFetcher.getReadyWindows()).thenReturn(readyWindows);
    when(mockSideInputFetcher.prefetchElements(readyWindows)).thenReturn(ImmutableList.of(elemsBag));
    when(elemsBag.read()).thenReturn(ImmutableList.of(WindowedValue.valueInGlobalWindow(KV.of("hi", 4)), WindowedValue.valueInGlobalWindow(KV.of("there", 5))));
    when(mockSideInputFetcher.storeIfBlocked(Matchers.<WindowedValue<KV<String, Integer>>>any())).thenReturn(false, false, false, true);
    pgbkParDoFn.startBundle(receiver);
    pgbkParDoFn.processElement(WindowedValue.valueInGlobalWindow(KV.of("hi", 6)));
    pgbkParDoFn.processElement(WindowedValue.valueInGlobalWindow(KV.of("joe", 7)));
    pgbkParDoFn.processElement(WindowedValue.valueInGlobalWindow(KV.of("there", 8)));
    pgbkParDoFn.processElement(WindowedValue.valueInGlobalWindow(KV.of("hi", 9)));
    pgbkParDoFn.finishBundle();
    assertThat(receiver.outputElems, IsIterableContainingInAnyOrder.<Object>containsInAnyOrder(WindowedValue.valueInGlobalWindow(KV.of("hi", 10)), WindowedValue.valueInGlobalWindow(KV.of("there", 13)), WindowedValue.valueInGlobalWindow(KV.of("joe", 7))));
    // Exact counter values depend on size of encoded data.  If encoding
    // changes, then these expected counters should change to match.
    CounterUpdateExtractor<?> updateExtractor = Mockito.mock(CounterUpdateExtractor.class);
    counterSet.extractUpdates(false, updateExtractor);
    verify(updateExtractor).longSum(getObjectCounterName("test_receiver_out"), false, 3L);
    verify(updateExtractor).longMean(getMeanByteCounterName("test_receiver_out"), false, LongCounterMean.ZERO.addValue(25L, 3));
    verifyNoMoreInteractions(updateExtractor);
}

Example 89 with Coder

use of org.apache.beam.sdk.coders.Coder in project beam by apache.

the class PartialGroupByKeyParDoFnsTest method testCreateWithCombinerAndStreaming.

@Test
public void testCreateWithCombinerAndStreaming() throws Exception {
    StreamingOptions options = PipelineOptionsFactory.as(StreamingOptions.class);
    options.setStreaming(true);
    Coder keyCoder = StringUtf8Coder.of();
    Coder valueCoder = BigEndianIntegerCoder.of();
    KvCoder<String, Integer> kvCoder = KvCoder.of(keyCoder, valueCoder);
    TestOutputReceiver receiver = new TestOutputReceiver(new ElementByteSizeObservableCoder(WindowedValue.getValueOnlyCoder(kvCoder)), counterSet, NameContextsForTests.nameContextForTest());
    ParDoFn pgbk = PartialGroupByKeyParDoFns.create(options, kvCoder, AppliedCombineFn.withInputCoder(Sum.ofIntegers(), CoderRegistry.createDefault(), kvCoder), NullSideInputReader.empty(), receiver, null);
    assertTrue(pgbk instanceof SimplePartialGroupByKeyParDoFn);
}

Example 90 with Coder

use of org.apache.beam.sdk.coders.Coder in project beam by apache.

the class PartialGroupByKeyParDoFnsTest method testPartialGroupByKeyWithCombiner.

@Test
public void testPartialGroupByKeyWithCombiner() throws Exception {
    Coder keyCoder = StringUtf8Coder.of();
    Coder valueCoder = BigEndianIntegerCoder.of();
    TestOutputReceiver receiver = new TestOutputReceiver(new ElementByteSizeObservableCoder(WindowedValue.getValueOnlyCoder(KvCoder.of(keyCoder, valueCoder))), counterSet, NameContextsForTests.nameContextForTest());
    Combiner<WindowedValue<String>, Integer, Integer, Integer> combineFn = new TestCombiner();
    ParDoFn pgbkParDoFn = new SimplePartialGroupByKeyParDoFn(GroupingTables.combining(new WindowingCoderGroupingKeyCreator(keyCoder), PairInfo.create(), combineFn, new CoderSizeEstimator(WindowedValue.getValueOnlyCoder(keyCoder)), new CoderSizeEstimator(valueCoder)), receiver);
    pgbkParDoFn.startBundle(receiver);
    pgbkParDoFn.processElement(WindowedValue.valueInGlobalWindow(KV.of("hi", 4)));
    pgbkParDoFn.processElement(WindowedValue.valueInGlobalWindow(KV.of("there", 5)));
    pgbkParDoFn.processElement(WindowedValue.valueInGlobalWindow(KV.of("hi", 6)));
    pgbkParDoFn.processElement(WindowedValue.valueInGlobalWindow(KV.of("joe", 7)));
    pgbkParDoFn.processElement(WindowedValue.valueInGlobalWindow(KV.of("there", 8)));
    pgbkParDoFn.processElement(WindowedValue.valueInGlobalWindow(KV.of("hi", 9)));
    pgbkParDoFn.finishBundle();
    assertThat(receiver.outputElems, IsIterableContainingInAnyOrder.<Object>containsInAnyOrder(WindowedValue.valueInGlobalWindow(KV.of("hi", 19)), WindowedValue.valueInGlobalWindow(KV.of("there", 13)), WindowedValue.valueInGlobalWindow(KV.of("joe", 7))));
    // Exact counter values depend on size of encoded data.  If encoding
    // changes, then these expected counters should change to match.
    CounterUpdateExtractor<?> updateExtractor = Mockito.mock(CounterUpdateExtractor.class);
    counterSet.extractUpdates(false, updateExtractor);
    verify(updateExtractor).longSum(getObjectCounterName("test_receiver_out"), false, 3L);
    verify(updateExtractor).longMean(getMeanByteCounterName("test_receiver_out"), false, LongCounterMean.ZERO.addValue(25L, 3));
    verifyNoMoreInteractions(updateExtractor);
}