Package org.apache.vxquery.datamodel.builders.sequence

Examples of org.apache.vxquery.datamodel.builders.sequence.SequenceBuilder

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        final ArrayBackedValueStorage abvsCount = new ArrayBackedValueStorage();
        final DataOutput dOutCount = abvsCount.getDataOutput();
        final ArrayBackedValueStorage abvsSum = new ArrayBackedValueStorage();
        final DataOutput dOutSum = abvsSum.getDataOutput();
        final ArrayBackedValueStorage abvsSeq = new ArrayBackedValueStorage();
        final SequenceBuilder sb = new SequenceBuilder();
        final AddOperation aOp = new AddOperation();

        return new AbstractTaggedValueArgumentAggregateEvaluator(args) {
            long count;
            TaggedValuePointable tvpSum = (TaggedValuePointable) TaggedValuePointable.FACTORY.createPointable();

            @Override
            public void init() throws AlgebricksException {
                count = 0;
                try {
                    abvsSum.reset();
                    dOutSum.write(ValueTag.XS_INTEGER_TAG);
                    dOutSum.writeLong(0);
                    tvpSum.set(abvsSum);
                } catch (Exception e) {
                    throw new AlgebricksException(e);
                }
            }

            @Override
            public void finish(IPointable result) throws AlgebricksException {
                if (count == 0) {
                    XDMConstants.setEmptySequence(result);
                } else {
                    // Set count as a TaggedValuePointable.
                    try {
                        abvsCount.reset();
                        dOutCount.write(ValueTag.XS_INTEGER_TAG);
                        dOutCount.writeLong(count);
                        tvpCount.set(abvsCount);

                        // Save intermediate result.
                        abvsSeq.reset();
                        sb.reset(abvsSeq);
                        sb.addItem(tvpCount);
                        sb.addItem(tvpSum);
                        sb.finish();
                        result.set(abvsSeq);
                    } catch (Exception e) {
                        throw new AlgebricksException(e);
                    }
                }
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    @Override
    protected IScalarEvaluator createEvaluator(IHyracksTaskContext ctx, IScalarEvaluator[] args)
            throws AlgebricksException {
        final ArrayBackedValueStorage abvs = new ArrayBackedValueStorage();
        final SequenceBuilder sb = new SequenceBuilder();
        final SequencePointable seq = (SequencePointable) SequencePointable.FACTORY.createPointable();
        final VoidPointable p = (VoidPointable) VoidPointable.FACTORY.createPointable();
        final DoublePointable doublep = (DoublePointable) DoublePointable.FACTORY.createPointable();
        final LongPointable longp = (LongPointable) LongPointable.FACTORY.createPointable();
        final XSDecimalPointable decp = (XSDecimalPointable) XSDecimalPointable.FACTORY.createPointable();
        final ArrayBackedValueStorage abvsRound = new ArrayBackedValueStorage();
        final FnRoundOperation round = new FnRoundOperation();
        return new AbstractTaggedValueArgumentScalarEvaluator(args) {
            @Override
            protected void evaluate(TaggedValuePointable[] args, IPointable result) throws SystemException {
                try {
                    long startingLoc;
                    TaggedValuePointable tvp2 = args[1];
                    startingLoc = getLongFromArgument(tvp2);
                    if (startingLoc < 1) {
                        startingLoc = 1;
                    }

                    // Get length.
                    long endingLoc = Long.MAX_VALUE;
                    if (args.length > 2) {
                        TaggedValuePointable tvp3 = args[2];
                        endingLoc = getLongFromArgument(tvp3) + startingLoc;
                    }

                    abvs.reset();
                    sb.reset(abvs);
                    TaggedValuePointable tvp1 = args[0];
                    if (tvp1.getTag() == ValueTag.SEQUENCE_TAG) {
                        tvp1.getValue(seq);
                        int seqLen = seq.getEntryCount();
                        if (endingLoc < startingLoc) {
                            // Empty sequence.
                        } else if (startingLoc == 1 && endingLoc > seqLen) {
                            // Includes whole sequence.
                            result.set(tvp1);
                            return;
                        } else {
                            for (int j = 0; j < seqLen; ++j) {
                                if (startingLoc <= j + 1 && j + 1 < endingLoc) {
                                    seq.getEntry(j, p);
                                    sb.addItem(p);
                                }
                            }
                        }
                    } else if (startingLoc == 1 && endingLoc > 1) {
                        // Includes item.
                        result.set(tvp1);
                        return;
                    }
                    sb.finish();
                    result.set(abvs);
                } catch (IOException e) {
                    throw new SystemException(ErrorCode.SYSE0001);
                }
            }
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    @Override
    protected IScalarEvaluator createEvaluator(IHyracksTaskContext ctx, IScalarEvaluator[] args)
            throws AlgebricksException {
        final ArrayBackedValueStorage abvs = new ArrayBackedValueStorage();
        final SequenceBuilder sb = new SequenceBuilder();
        final SequencePointable seq = (SequencePointable) SequencePointable.FACTORY.createPointable();
        final VoidPointable p = (VoidPointable) VoidPointable.FACTORY.createPointable();
        return new AbstractTaggedValueArgumentScalarEvaluator(args) {
            @Override
            protected void evaluate(TaggedValuePointable[] args, IPointable result) throws SystemException {
                try {
                    abvs.reset();
                    sb.reset(abvs);
                    for (int i = 0; i < args.length; ++i) {
                        TaggedValuePointable tvp = args[i];
                        if (tvp.getTag() == ValueTag.SEQUENCE_TAG) {
                            tvp.getValue(seq);
                            int seqLen = seq.getEntryCount();
                            for (int j = 0; j < seqLen; ++j) {
                                seq.getEntry(j, p);
                                sb.addItem(p);
                            }
                        } else {
                            sb.addItem(tvp);
                        }
                    }
                    sb.finish();
                    result.set(abvs);
                } catch (IOException e) {
                    throw new SystemException(ErrorCode.SYSE0001);
                }
            }
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            throws AlgebricksException {
        final UTF8StringPointable stringp = (UTF8StringPointable) UTF8StringPointable.FACTORY.createPointable();
        final UTF8StringCharacterIterator charIterator = new UTF8StringCharacterIterator(stringp);
        final SequencePointable seqp = (SequencePointable) SequencePointable.FACTORY.createPointable();
        final ArrayBackedValueStorage abvs = new ArrayBackedValueStorage();
        final SequenceBuilder sb = new SequenceBuilder();
        final ArrayBackedValueStorage abvsInner = new ArrayBackedValueStorage();
        final DataOutput dOutInner = abvsInner.getDataOutput();

        return new AbstractTaggedValueArgumentScalarEvaluator(args) {
            @Override
            protected void evaluate(TaggedValuePointable[] args, IPointable result) throws SystemException {
                TaggedValuePointable tvp1 = args[0];

                // Only accept strings as input.
                if (tvp1.getTag() == ValueTag.SEQUENCE_TAG) {
                    tvp1.getValue(seqp);
                    if (seqp.getEntryCount() == 0) {
                        XDMConstants.setEmptySequence(result);
                        return;
                    } else {
                        throw new SystemException(ErrorCode.FORG0006);
                    }
                } else {
                    if (!FunctionHelper.isDerivedFromString(tvp1.getTag())) {
                        throw new SystemException(ErrorCode.FORG0006);
                    }
                    tvp1.getValue(stringp);
                    if (stringp.getLength() == 2) {
                        XDMConstants.setEmptySequence(result);
                        return;
                    }
                }

                // Return sequence of character values.
                try {
                    charIterator.reset();
                    abvs.reset();
                    sb.reset(abvs);
                    int c;
                    while ((c = charIterator.next()) != ICharacterIterator.EOS_CHAR) {
                        abvsInner.reset();
                        dOutInner.write(ValueTag.XS_INTEGER_TAG);
                        dOutInner.writeLong(c);
                        sb.addItem(abvsInner);
                    }

                    sb.finish();
                    result.set(abvs);
                } catch (IOException e) {
                    throw new SystemException(ErrorCode.SYSE0001);
                }
            }
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    @Override
    protected IScalarEvaluator createEvaluator(IHyracksTaskContext ctx, IScalarEvaluator[] args)
            throws AlgebricksException {
        final ArrayBackedValueStorage abvs = new ArrayBackedValueStorage();
        final SequenceBuilder sb = new SequenceBuilder();
        final SequencePointable seq = (SequencePointable) SequencePointable.FACTORY.createPointable();
        final VoidPointable p = (VoidPointable) VoidPointable.FACTORY.createPointable();
        final LongPointable longp = (LongPointable) LongPointable.FACTORY.createPointable();
        return new AbstractTaggedValueArgumentScalarEvaluator(args) {
            @Override
            protected void evaluate(TaggedValuePointable[] args, IPointable result) throws SystemException {
                try {
                    TaggedValuePointable tvp2 = args[1];
                    if (tvp2.getTag() != ValueTag.XS_INTEGER_TAG) {
                        throw new SystemException(ErrorCode.FORG0006);
                    }
                    tvp2.getValue(longp);

                    abvs.reset();
                    sb.reset(abvs);
                    TaggedValuePointable tvp1 = args[0];
                    if (tvp1.getTag() == ValueTag.SEQUENCE_TAG) {
                        tvp1.getValue(seq);
                        int seqLen = seq.getEntryCount();
                        if (longp.getLong() < 1 || longp.getLong() > seqLen) {
                            // Position is outside the sequence. Return target.
                            result.set(tvp1);
                            return;
                        } else {
                            for (int j = 0; j < seqLen; ++j) {
                                if (longp.getLong() != j + 1) {
                                    seq.getEntry(j, p);
                                    sb.addItem(p);
                                }
                            }
                        }
                    } else if (longp.getLong() != 1) {
                        // Position does not match the item. Return target.
                        result.set(tvp1);
                        return;
                    }
                    sb.finish();
                    result.set(abvs);
                } catch (IOException e) {
                    throw new SystemException(ErrorCode.SYSE0001);
                }
            }
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    protected IScalarEvaluator createEvaluator(IHyracksTaskContext ctx, IScalarEvaluator[] args)
            throws AlgebricksException {
        final ArrayBackedValueStorage abvs = new ArrayBackedValueStorage();
        final ArrayBackedValueStorage abvsInner = new ArrayBackedValueStorage();
        final DataOutput dOutInner = abvsInner.getDataOutput();
        final SequenceBuilder sb = new SequenceBuilder();
        final LongPointable longp = (LongPointable) LongPointable.FACTORY.createPointable();

        return new AbstractTaggedValueArgumentScalarEvaluator(args) {
            @Override
            protected void evaluate(TaggedValuePointable[] args, IPointable result) throws SystemException {
                try {
                    TaggedValuePointable tvp1 = args[0];
                    if (tvp1.getTag() != ValueTag.XS_INTEGER_TAG) {
                        throw new SystemException(ErrorCode.FORG0006);
                    }
                    tvp1.getValue(longp);
                    long start = longp.getLong();

                    TaggedValuePointable tvp2 = args[1];
                    if (tvp2.getTag() != ValueTag.XS_INTEGER_TAG) {
                        throw new SystemException(ErrorCode.FORG0006);
                    }
                    tvp2.getValue(longp);
                    long end = longp.getLong();

                    abvs.reset();
                    sb.reset(abvs);
                    if (start > end) {
                        XDMConstants.setEmptySequence(result);
                        return;
                    } else {
                        for (long j = start; j <= end; ++j) {
                            abvsInner.reset();
                            dOutInner.write(ValueTag.XS_INTEGER_TAG);
                            dOutInner.writeLong(j);
                            sb.addItem(abvsInner);
                        }
                    }
                    sb.finish();
                    result.set(abvs);
                } catch (IOException e) {
                    throw new SystemException(ErrorCode.SYSE0001);
                }
            }
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    @Override
    protected IScalarEvaluator createEvaluator(IHyracksTaskContext ctx, IScalarEvaluator[] args)
            throws AlgebricksException {
        final ArrayBackedValueStorage abvs = new ArrayBackedValueStorage();
        final SequenceBuilder sb = new SequenceBuilder();
        final SequencePointable seq = (SequencePointable) SequencePointable.FACTORY.createPointable();
        final SequencePointable seq2 = (SequencePointable) SequencePointable.FACTORY.createPointable();
        final VoidPointable p = (VoidPointable) VoidPointable.FACTORY.createPointable();
        final LongPointable longp = (LongPointable) LongPointable.FACTORY.createPointable();
        return new AbstractTaggedValueArgumentScalarEvaluator(args) {
            @Override
            protected void evaluate(TaggedValuePointable[] args, IPointable result) throws SystemException {
                try {
                    TaggedValuePointable tvp2 = args[1];
                    if (tvp2.getTag() != ValueTag.XS_INTEGER_TAG) {
                        throw new SystemException(ErrorCode.FORG0006);
                    }
                    tvp2.getValue(longp);

                    abvs.reset();
                    sb.reset(abvs);
                    TaggedValuePointable tvp1 = args[0];
                    TaggedValuePointable tvp3 = args[2];
                    if (tvp1.getTag() == ValueTag.SEQUENCE_TAG) {
                        tvp1.getValue(seq);
                        int seqLen = seq.getEntryCount();
                        if (longp.getLong() < 1) {
                            // Add to the beginning.
                            addArgumentToSequence(tvp3);
                        }
                        if (seqLen > 0) {
                            for (int j = 0; j < seqLen; ++j) {
                                if (longp.getLong() == j + 1) {
                                    addArgumentToSequence(tvp3);
                                }
                                seq.getEntry(j, p);
                                sb.addItem(p);
                            }
                        }
                        if (longp.getLong() > seqLen) {
                            // Add to the end.
                            addArgumentToSequence(tvp3);
                        }

                    } else {
                        if (longp.getLong() <= 1) {
                            addArgumentToSequence(tvp3);
                            sb.addItem(tvp1);
                        } else {
                            sb.addItem(tvp1);
                            addArgumentToSequence(tvp3);
                        }
                    }
                    sb.finish();
                    result.set(abvs);
                } catch (IOException e) {
                    throw new SystemException(ErrorCode.SYSE0001);
                }
            }

            private void addArgumentToSequence(TaggedValuePointable tvp) throws IOException {
                if (tvp.getTag() == ValueTag.SEQUENCE_TAG) {
                    tvp.getValue(seq2);
                    int seqLen = seq2.getEntryCount();
                    if (seqLen > 0) {
                        for (int j = 0; j < seqLen; ++j) {
                            seq2.getEntry(j, p);
                            sb.addItem(p);
                        }
                    }
                } else {
                    sb.addItem(tvp);
                }
            }
        };
    }
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    @Override
    protected IScalarEvaluator createEvaluator(IHyracksTaskContext ctx, IScalarEvaluator[] args)
            throws AlgebricksException {
        final ArrayBackedValueStorage abvs = new ArrayBackedValueStorage();
        final SequenceBuilder sb = new SequenceBuilder();
        final SequencePointable seq = new SequencePointable();
        final DynamicContext dCtx = (DynamicContext) ctx.getJobletContext().getGlobalJobData();
        final AbstractValueComparisonOperation aOp = new ValueEqComparisonOperation();
        final TaggedValuePointable tvpDistinct = (TaggedValuePointable) TaggedValuePointable.FACTORY.createPointable();
        final TaggedValuePointable tvpCheck = (TaggedValuePointable) TaggedValuePointable.FACTORY.createPointable();
        final VoidPointable p = (VoidPointable) VoidPointable.FACTORY.createPointable();
        final UTF8StringPointable stringp = (UTF8StringPointable) UTF8StringPointable.FACTORY.createPointable();

        return new AbstractTaggedValueArgumentScalarEvaluator(args) {
            @Override
            protected void evaluate(TaggedValuePointable[] args, IPointable result) throws SystemException {
                try {
                    abvs.reset();
                    sb.reset(abvs);
                    TaggedValuePointable tvp1 = args[0];
                    // Second  parameter is optional.
                    if (args.length > 1) {
                        TaggedValuePointable tvp2 = args[1];
                        if (tvp2.getTag() != ValueTag.XS_STRING_TAG) {
                            throw new SystemException(ErrorCode.FORG0006);
                        }
                        tvp2.getValue(stringp);
                    }
                    // TODO use the third value as collation

                    if (tvp1.getTag() == ValueTag.SEQUENCE_TAG) {
                        tvp1.getValue(seq);
                        int seqLen = seq.getEntryCount();

                        // Add remaining distinct item.
                        boolean found = false;
                        for (int j = 0; j < seqLen; ++j) {
                            seq.getEntry(j, p);
                            tvpDistinct.set(p.getByteArray(), p.getStartOffset(), p.getLength());

                            // Check if item is distinct.
                            if (j + 1 < seqLen) {
                                for (int k = j + 1; k < seqLen; ++k) {
                                    seq.getEntry(k, p);
                                    tvpCheck.set(p.getByteArray(), p.getStartOffset(), p.getLength());
                                    if (FunctionHelper.compareTaggedValues(aOp, tvpDistinct, tvpCheck, dCtx)) {
                                        found = true;
                                        break;
                                    }
                                }
                            }

                            // Add distinct item.
                            if (!found) {
                                sb.addItem(tvpDistinct);
                            }
                        }
                    } else {
                        sb.addItem(tvp1);
                    }
                    sb.finish();
                    result.set(abvs);
                } catch (IOException e) {
                    throw new SystemException(ErrorCode.SYSE0001);
                }
            }
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    @Override
    protected IScalarEvaluator createEvaluator(IHyracksTaskContext ctx, IScalarEvaluator[] args)
            throws AlgebricksException {
        final ArrayBackedValueStorage abvs = new ArrayBackedValueStorage();
        final SequenceBuilder sb = new SequenceBuilder();
        final SequencePointable seq = (SequencePointable) SequencePointable.FACTORY.createPointable();
        final VoidPointable p = (VoidPointable) VoidPointable.FACTORY.createPointable();
        return new AbstractTaggedValueArgumentScalarEvaluator(args) {
            @Override
            protected void evaluate(TaggedValuePointable[] args, IPointable result) throws SystemException {
                try {
                    TaggedValuePointable tvp = args[0];
                    if (tvp.getTag() == ValueTag.SEQUENCE_TAG) {
                        abvs.reset();
                        sb.reset(abvs);
                        tvp.getValue(seq);
                        int seqLen = seq.getEntryCount();
                        for (int j = 0; j < seqLen; ++j) {
                            seq.getEntry(seqLen - j - 1, p);
                            sb.addItem(p);
                        }
                        sb.finish();
                        result.set(abvs);
                    } else {
                        result.set(tvp);
                    }
                } catch (IOException e) {
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    public AbstractPathStepScalarEvaluator(IScalarEvaluator[] args, IHyracksTaskContext ctx) {
        super(args);
        nstb = new NodeSubTreeBuilder();
        ntp = (NodeTreePointable) NodeTreePointable.FACTORY.createPointable();
        seqb = new SequenceBuilder();
        nodeAbvs = new ArrayBackedValueStorage();
        itemTvp = (TaggedValuePointable) TaggedValuePointable.FACTORY.createPointable();
        node = (TaggedValuePointable) TaggedValuePointable.FACTORY.createPointable();
    }
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