Package org.apache.pig.pen.util

Examples of org.apache.pig.pen.util.ExampleTuple

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                  } catch (ExecException e) {
                      hasNull = true;
                      break;
                  }
              if (!hasNull) {
                  ExampleTuple tOut = new ExampleTuple((Tuple) out);
                  illustrator.getLineage().insert(tOut);
                  illustrator.addData((Tuple) tOut);
                  illustrator.getEquivalenceClasses().get(eqClassIndex).add(tOut);
                  return tOut;
              } else
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    }

    @Override
    public Tuple illustratorMarkup(Object in, Object out, int eqClassIndex) {
        if (illustrator != null) {
            ExampleTuple tOut = new ExampleTuple((Tuple) out);
            illustrator.addData(tOut);
            illustrator.getEquivalenceClasses().get(eqClassIndex).add(
                    (Tuple) out);
            LineageTracer lineageTracer = illustrator.getLineage();
            lineageTracer.insert(tOut);
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    }
   
    @Override
    public Tuple illustratorMarkup(Object in, Object out, int eqClassIndex) {
      if(illustrator != null) {
          ExampleTuple tIn = (ExampleTuple) in;
          illustrator.getEquivalenceClasses().get(eqClassIndex).add(tIn);
            illustrator.addData((Tuple) out);
      }
      return (Tuple) out;
    }
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        bags = null;
    }

    protected Tuple illustratorMarkup2(Object in, Object out) {
        if (illustrator != null) {
            ExampleTuple tOut;
            if (!(out instanceof ExampleTuple)) {
                tOut = new ExampleTuple((Tuple) out);
            } else {
                tOut = (ExampleTuple) out;
            }
            illustrator.getLineage().insert(tOut);
            tOut.synthetic = ((ExampleTuple) in).synthetic;
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    public Tuple illustratorMarkup(Object in, Object out, int eqClassIndex) {
        // All customized packagers are introduced during MRCompilaition.
        // Illustrate happens before that, so we only have to focus on the basic
        // POPackage
        if (illustrator != null) {
            ExampleTuple tOut = new ExampleTuple((Tuple) out);
            LineageTracer lineageTracer = illustrator.getLineage();
            lineageTracer.insert(tOut);
            boolean synthetic = false;
            if (illustrator.getEquivalenceClasses() == null) {
                LinkedList<IdentityHashSet<Tuple>> equivalenceClasses = new LinkedList<IdentityHashSet<Tuple>>();
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        {
            // no duplicates found: generate one
            if (inputConstraints.size()> 0) {
                Tuple src = ((ExampleTuple)inputConstraints.iterator().next()).toTuple(),
                      tgt = TupleFactory.getInstance().newTuple(src.getAll());
                ExampleTuple inputConstraint = new ExampleTuple(tgt);
                inputConstraint.synthetic = true;
                inputConstraints.add(inputConstraint);
            } else if (emptyInputConstraints)
                inputConstraints.clear();
        }
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                // input
                // constraints
                for (Iterator<Tuple> it = outputConstraints.iterator(); it
                        .hasNext();) {
                    Tuple outputConstraint = it.next();
                    ExampleTuple inputConstraint = GenerateMatchingTuple(
                            outputConstraint, filterCond, false);
                    if (inputConstraint != null)
                        inputConstraints.add(inputConstraint);
                }
            } else if (outputData.size() == 0) { // no output constraints, but
                // output is empty; generate
                // one input that will pass the
                // filter
                ExampleTuple inputConstraint = GenerateMatchingTuple(filter
                        .getSchema(), filterCond, false);

                if (inputConstraint != null)
                    inputConstraints.add(inputConstraint);
            }

            // if necessary, insert a negative example (i.e. a tuple that does
            // not pass the filter)
            if (outputData.size() == inputData.size()) { // all tuples pass the
                // filter; generate one
                // input that will not
                // pass the filter

                ExampleTuple inputConstraint = GenerateMatchingTuple(filter
                        .getSchema(), filterCond, true);
                if (inputConstraint != null)
                    inputConstraints.add(inputConstraint);

            }
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                throw new RuntimeException(
                        "Internal error: incorrect number of fields in constraint tuple.");

            Tuple inputT = TupleFactory.getInstance().newTuple(
                    outputConstraint.size());
            ExampleTuple inputTuple = new ExampleTuple(inputT);

            try {
                for (int i = 0; i < inputTuple.size(); i++) {
                    Object d = outputConstraint.get(i);
                    if (d == null && i < exampleTuple.size())
                        d = exampleTuple.get(i);
                    inputTuple.set(i, d);
                }
                if (outputConstraint instanceof ExampleTuple)
                    inputTuple.synthetic = ((ExampleTuple) outputConstraint).synthetic;
                else
                    // raw tuple should have been synthesized
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    Tuple BackPropConstraint(Tuple outputConstraint, List<Integer> cols,
            LogicalSchema inputSchema, boolean cast) throws ExecException {
        Tuple inputConst = TupleFactory.getInstance().newTuple(
                inputSchema.getFields().size());

        Tuple inputConstraint = new ExampleTuple(inputConst);

        for (int outCol = 0; outCol < outputConstraint.size(); outCol++) {
            int inCol = cols.get(outCol);
            Object outVal = outputConstraint.get(outCol);
            Object inVal = inputConstraint.get(inCol);

            if (inVal == null && outVal != null) {
                // inputConstraint.set(inCol, outVal);
                inputConstraint.set(inCol, (cast) ? new DataByteArray(outVal
                        .toString().getBytes()) : outVal);

            } else {
                if (outVal != null) {
                    // unable to back-propagate, due to conflicting column
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    //

    ExampleTuple GenerateMatchingTuple(Tuple constraint, LogicalExpressionPlan predicate,
            boolean invert) throws ExecException, FrontendException {
        Tuple t = TupleFactory.getInstance().newTuple(constraint.size());
        ExampleTuple tOut = new ExampleTuple(t);
        for (int i = 0; i < t.size(); i++)
            tOut.set(i, constraint.get(i));

        GenerateMatchingTupleHelper(tOut, predicate
                .getSources().get(0), invert);
        tOut.synthetic = true;
        return tOut;
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