Package org.apache.tez.runtime.api

Examples of org.apache.tez.runtime.api.LogicalInput

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        || outputs.size() != 1) {
      throw new IOException("Cannot handle multiple inputs or outputs"
          + ", inputCount=" + inputs.size()
          + ", outputCount=" + outputs.size());
    }
    LogicalInput in = inputs.values().iterator().next();
    LogicalOutput out = outputs.values().iterator().next();

    initTask(out);

    // Sanity check
    if (!(in instanceof MRInputLegacy)) {
      throw new IOException(new TezException(
          "Only MRInputLegacy supported. Input: " + in.getClass()));
    }
    MRInputLegacy input = (MRInputLegacy)in;
    input.init();
    Configuration incrementalConf = input.getConfigUpdates();
    if (incrementalConf != null) {
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    if (inputs.size() <= 0 || inputs.size() > 1) {
      throw new IOException("Invalid number of inputs"
          + ", inputCount=" + inputs.size());
    }

    LogicalInput in = inputs.values().iterator().next();
    in.start();

    List<Input> pendingInputs = new LinkedList<Input>();
    pendingInputs.add(in);
    processorContext.waitForAllInputsReady(pendingInputs);
    LOG.info("Input is ready for consumption. Starting Output");

    LogicalOutput out = outputs.values().iterator().next();
    out.start();

    initTask(out);

    this.statusUpdate();

    Class keyClass = ConfigUtils.getIntermediateInputKeyClass(jobConf);
    Class valueClass = ConfigUtils.getIntermediateInputValueClass(jobConf);
    LOG.info("Using keyClass: " + keyClass);
    LOG.info("Using valueClass: " + valueClass);
    RawComparator comparator =
        ConfigUtils.getInputKeySecondaryGroupingComparator(jobConf);
    LOG.info("Using comparator: " + comparator);

    reduceInputKeyCounter =
        mrReporter.getCounter(TaskCounter.REDUCE_INPUT_GROUPS);
    reduceInputValueCounter =
        mrReporter.getCounter(TaskCounter.REDUCE_INPUT_RECORDS);

    // Sanity check
    if (!(in instanceof OrderedGroupedInputLegacy)) {
      throw new IOException("Illegal input to reduce: " + in.getClass());
    }
    OrderedGroupedInputLegacy shuffleInput = (OrderedGroupedInputLegacy)in;
    KeyValuesReader kvReader = shuffleInput.getReader();

    KeyValueWriter kvWriter = null;
    if((out instanceof MROutputLegacy)) {
      kvWriter = ((MROutputLegacy) out).getWriter();
    } else if ((out instanceof OrderedPartitionedKVOutput)) {
      kvWriter = ((OrderedPartitionedKVOutput) out).getWriter();
    } else {
      throw new IOException("Illegal output to reduce: " + in.getClass());
    }

    if (useNewApi) {
      try {
        runNewReducer(
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    @Override
    public void run() throws Exception {
      Preconditions.checkState(getInputs().size() == 2);
      Preconditions.checkState(getOutputs().size() == 0);
      LogicalInput lhsInput = getInputs().get(LHS_INPUT_NAME);
      LogicalInput rhsInput = getInputs().get(RHS_INPUT_NAME);
      Reader lhsReaderRaw = lhsInput.getReader();
      Reader rhsReaderRaw = rhsInput.getReader();
      Preconditions.checkState(lhsReaderRaw instanceof KeyValuesReader);
      Preconditions.checkState(rhsReaderRaw instanceof KeyValuesReader);
      KeyValuesReader lhsReader = (KeyValuesReader) lhsReaderRaw;
      KeyValuesReader rhsReader = (KeyValuesReader) rhsReaderRaw;
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      Preconditions.checkState(getInputs().size() == 1);
      Preconditions.checkState(getOutputs().size() == 1);
      // not looking up inputs and outputs by name because there is just one
      // instance and this processor is used in many different DAGs with
      // different names for inputs and outputs
      LogicalInput input = getInputs().values().iterator().next();
      Reader rawReader = input.getReader();
      Preconditions.checkState(rawReader instanceof KeyValueReader);
      LogicalOutput output = getOutputs().values().iterator().next();

      KeyValueReader reader = (KeyValueReader) rawReader;
      KeyValueWriter writer = (KeyValueWriter) output.getWriter();
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    @Override
    public void run() throws Exception {
      Preconditions.checkState(getInputs().size() == 2);
      Preconditions.checkState(getOutputs().size() == 1);
      // Get the input data for the 2 sides of the join from the 2 inputs
      LogicalInput streamInput = getInputs().get(streamingSide);
      LogicalInput hashInput = getInputs().get(hashSide);
      Reader rawStreamReader = streamInput.getReader();
      Reader rawHashReader = hashInput.getReader();
      Preconditions.checkState(rawStreamReader instanceof KeyValueReader);
      Preconditions.checkState(rawHashReader instanceof KeyValueReader);
      LogicalOutput lo = getOutputs().get(joinOutput);
      Preconditions.checkState(lo.getWriter() instanceof KeyValueWriter);
      KeyValueWriter writer = (KeyValueWriter) lo.getWriter();
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      MROutput out = (MROutput) getOutputs().get("union");
      MROutput allParts = (MROutput) getOutputs().get("all-parts");
      KeyValueWriter kvWriter = out.getWriter();
      KeyValueWriter partsWriter = allParts.getWriter();
      Map<String, AtomicInteger> unionKv = Maps.newHashMap();
      LogicalInput union = getInputs().get("union");
      KeyValuesReader kvReader = (KeyValuesReader) union.getReader();
      while (kvReader.next()) {
        String word = ((Text) kvReader.getCurrentKey()).toString();
        IntWritable intVal = (IntWritable) kvReader.getCurrentValues().iterator().next();
        for (int i = 0; i < intVal.get(); ++i) {
          partsWriter.write(word, one);
        }
        AtomicInteger value = unionKv.get(word);
        if (value == null) {
          unionKv.put(word, new AtomicInteger(intVal.get()));
        } else {
          value.addAndGet(intVal.get());
        }
      }
      LogicalInput map3 = getInputs().get("map3");
      kvReader = (KeyValuesReader) map3.getReader();
      while (kvReader.next()) {
        String word = ((Text) kvReader.getCurrentKey()).toString();
        IntWritable intVal = (IntWritable) kvReader.getCurrentValues().iterator().next();
        AtomicInteger value = unionKv.get(word);
        if (value == null) {
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    }
    for (LogicalOutput output : outputs.values()) {
      output.start();
    }

    LogicalInput li = inputs.values().iterator().next();
    if (! (li instanceof MRInput)) {
      throw new IllegalStateException("FilterByWordInputProcessor processor can only work with MRInput");
    }

    LogicalOutput lo = outputs.values().iterator().next();
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    }
    for (LogicalOutput output : outputs.values()) {
      output.start();
    }

    LogicalInput li = inputs.values().iterator().next();
    if (! (li instanceof UnorderedKVInput)) {
      throw new IllegalStateException("FilterByWordOutputProcessor processor can only work with ShuffledUnorderedKVInput");
    }

    LogicalOutput lo = outputs.values().iterator().next();
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    @Override
    public Void call() throws Exception {
      LOG.info("Initializing Input using InputSpec: " + inputSpec);
      String edgeName = inputSpec.getSourceVertexName();
      LogicalInput input = createInput(inputSpec);
      TezInputContext inputContext = createInputContext(input, inputSpec, inputIndex);
      inputsMap.put(edgeName, input);
      inputContextMap.put(edgeName, inputContext);

      if (input instanceof LogicalInput) {
        ((LogicalInput) input).setNumPhysicalInputs(inputSpec
            .getPhysicalEdgeCount());
      }
      LOG.info("Initializing Input with src edge: " + edgeName);
      List<Event> events = input.initialize(inputContext);
      sendTaskGeneratedEvents(events, EventProducerConsumerType.INPUT,
          inputContext.getTaskVertexName(), inputContext.getSourceVertexName(),
          taskSpec.getTaskAttemptID());
      LOG.info("Initialized Input with src edge: " + edgeName);
      return null;
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    if (inputs.size() <= 0 || inputs.size() > 1) {
      throw new IOException("Invalid number of inputs"
          + ", inputCount=" + inputs.size());
    }

    LogicalInput in = inputs.values().iterator().next();
    in.start();

    List<Input> pendingInputs = new LinkedList<Input>();
    pendingInputs.add(in);
    processorContext.waitForAllInputsReady(pendingInputs);
    LOG.info("Input is ready for consumption. Starting Output");

    LogicalOutput out = outputs.values().iterator().next();
    out.start();

    initTask(out);

    this.statusUpdate();

    Class keyClass = ConfigUtils.getIntermediateInputKeyClass(jobConf);
    Class valueClass = ConfigUtils.getIntermediateInputValueClass(jobConf);
    LOG.info("Using keyClass: " + keyClass);
    LOG.info("Using valueClass: " + valueClass);
    RawComparator comparator =
        ConfigUtils.getInputKeySecondaryGroupingComparator(jobConf);
    LOG.info("Using comparator: " + comparator);

    reduceInputKeyCounter =
        mrReporter.getCounter(TaskCounter.REDUCE_INPUT_GROUPS);
    reduceInputValueCounter =
        mrReporter.getCounter(TaskCounter.REDUCE_INPUT_RECORDS);

    // Sanity check
    if (!(in instanceof ShuffledMergedInputLegacy)) {
      throw new IOException("Illegal input to reduce: " + in.getClass());
    }
    ShuffledMergedInputLegacy shuffleInput = (ShuffledMergedInputLegacy)in;
    KeyValuesReader kvReader = shuffleInput.getReader();

    KeyValueWriter kvWriter = null;
    if((out instanceof MROutputLegacy)) {
      kvWriter = ((MROutputLegacy) out).getWriter();
    } else if ((out instanceof OnFileSortedOutput)) {
      kvWriter = ((OnFileSortedOutput) out).getWriter();
    } else {
      throw new IOException("Illegal output to reduce: " + in.getClass());
    }

    if (useNewApi) {
      try {
        runNewReducer(
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