Examples with DataOutput java.io.DataOutput used on opensource projects

Example 31 with DataOutput

use of java.io.DataOutput in project asterixdb by apache.

the class NumericATan2Descriptor method createEvaluatorFactory.

@Override
public IScalarEvaluatorFactory createEvaluatorFactory(final IScalarEvaluatorFactory[] args) {
    return new IScalarEvaluatorFactory() {

        private static final long serialVersionUID = 1L;

        @Override
        public IScalarEvaluator createScalarEvaluator(final IHyracksTaskContext ctx) throws HyracksDataException {
            return new IScalarEvaluator() {

                // For inputs.
                private final IPointable leftPtr = new VoidPointable();

                private final IPointable rightPtr = new VoidPointable();

                private final IScalarEvaluator evalLeft = args[0].createScalarEvaluator(ctx);

                private final IScalarEvaluator evalRight = args[1].createScalarEvaluator(ctx);

                private final double[] operands = new double[args.length];

                // For the output.
                private final AMutableDouble aDouble = new AMutableDouble(0.0);

                @SuppressWarnings("rawtypes")
                private final ISerializerDeserializer outputSerde = SerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.ADOUBLE);

                private final ArrayBackedValueStorage resultStorage = new ArrayBackedValueStorage();

                private final DataOutput out = resultStorage.getDataOutput();

                @SuppressWarnings("unchecked")
                @Override
                public void evaluate(IFrameTupleReference tuple, IPointable result) throws HyracksDataException {
                    resultStorage.reset();
                    evalLeft.evaluate(tuple, leftPtr);
                    evalRight.evaluate(tuple, rightPtr);
                    for (int i = 0; i < args.length; i++) {
                        IPointable argPtr = i == 0 ? leftPtr : rightPtr;
                        byte[] data = argPtr.getByteArray();
                        int offset = argPtr.getStartOffset();
                        operands[i] = ATypeHierarchy.getDoubleValue(getIdentifier().getName(), i, data, offset);
                    }
                    aDouble.setValue(Math.atan2(operands[0], operands[1]));
                    outputSerde.serialize(aDouble, out);
                    result.set(resultStorage);
                }
            };
        }
    };
}

Example 32 with DataOutput

use of java.io.DataOutput in project asterixdb by apache.

the class DatasetUtil method createDummyKeyProviderOp.

/**
     * Creates a dummy key provider operator for the primary index scan.
     *
     * @param spec,
     *            the job specification.
     * @param dataset,
     *            the dataset to scan.
     * @param metadataProvider,
     *            the metadata provider.
     * @return a dummy key provider operator.
     * @throws AlgebricksException
     */
public static IOperatorDescriptor createDummyKeyProviderOp(JobSpecification spec, Dataset dataset, MetadataProvider metadataProvider) throws AlgebricksException {
    Pair<IFileSplitProvider, AlgebricksPartitionConstraint> primarySplitsAndConstraint = metadataProvider.getSplitProviderAndConstraints(dataset);
    AlgebricksPartitionConstraint primaryPartitionConstraint = primarySplitsAndConstraint.second;
    // Build dummy tuple containing one field with a dummy value inside.
    ArrayTupleBuilder tb = new ArrayTupleBuilder(1);
    DataOutput dos = tb.getDataOutput();
    tb.reset();
    try {
        // Serialize dummy value into a field.
        IntegerSerializerDeserializer.INSTANCE.serialize(0, dos);
    } catch (HyracksDataException e) {
        throw new AsterixException(e);
    }
    // Add dummy field.
    tb.addFieldEndOffset();
    ISerializerDeserializer[] keyRecDescSers = { IntegerSerializerDeserializer.INSTANCE };
    RecordDescriptor keyRecDesc = new RecordDescriptor(keyRecDescSers);
    ConstantTupleSourceOperatorDescriptor keyProviderOp = new ConstantTupleSourceOperatorDescriptor(spec, keyRecDesc, tb.getFieldEndOffsets(), tb.getByteArray(), tb.getSize());
    AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, keyProviderOp, primaryPartitionConstraint);
    return keyProviderOp;
}

Example 33 with DataOutput

use of java.io.DataOutput in project asterixdb by apache.

the class AbstractIntervalLogicFuncDescriptor method createEvaluatorFactory.

@Override
public IScalarEvaluatorFactory createEvaluatorFactory(final IScalarEvaluatorFactory[] args) {
    return new IScalarEvaluatorFactory() {

        private static final long serialVersionUID = 1L;

        @Override
        public IScalarEvaluator createScalarEvaluator(final IHyracksTaskContext ctx) throws HyracksDataException {
            return new IScalarEvaluator() {

                protected final IntervalLogic il = new IntervalLogic();

                private ArrayBackedValueStorage resultStorage = new ArrayBackedValueStorage();

                private DataOutput out = resultStorage.getDataOutput();

                private TaggedValuePointable argPtr0 = (TaggedValuePointable) TaggedValuePointable.FACTORY.createPointable();

                private TaggedValuePointable argPtr1 = (TaggedValuePointable) TaggedValuePointable.FACTORY.createPointable();

                private AIntervalPointable interval0 = (AIntervalPointable) AIntervalPointable.FACTORY.createPointable();

                private AIntervalPointable interval1 = (AIntervalPointable) AIntervalPointable.FACTORY.createPointable();

                private IScalarEvaluator eval0 = args[0].createScalarEvaluator(ctx);

                private IScalarEvaluator eval1 = args[1].createScalarEvaluator(ctx);

                // possible output types
                @SuppressWarnings("unchecked")
                private ISerializerDeserializer<ABoolean> booleanSerde = SerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.ABOOLEAN);

                @Override
                public void evaluate(IFrameTupleReference tuple, IPointable result) throws HyracksDataException {
                    resultStorage.reset();
                    eval0.evaluate(tuple, argPtr0);
                    eval1.evaluate(tuple, argPtr1);
                    byte typeTag0 = argPtr0.getTag();
                    if (typeTag0 != ATypeTag.SERIALIZED_INTERVAL_TYPE_TAG) {
                        throw new TypeMismatchException(getIdentifier(), 0, typeTag0, ATypeTag.SERIALIZED_INTERVAL_TYPE_TAG);
                    }
                    byte typeTag1 = argPtr0.getTag();
                    if (typeTag1 != ATypeTag.SERIALIZED_INTERVAL_TYPE_TAG) {
                        throw new TypeMismatchException(getIdentifier(), 1, typeTag1, ATypeTag.SERIALIZED_INTERVAL_TYPE_TAG);
                    }
                    argPtr0.getValue(interval0);
                    argPtr1.getValue(interval1);
                    if (typeTag0 != typeTag1) {
                        throw new IncompatibleTypeException(getIdentifier(), typeTag0, typeTag1);
                    }
                    ABoolean res = compareIntervals(il, interval0, interval1) ? ABoolean.TRUE : ABoolean.FALSE;
                    booleanSerde.serialize(res, out);
                    result.set(resultStorage);
                }
            };
        }
    };
}

Example 34 with DataOutput

use of java.io.DataOutput in project asterixdb by apache.

the class CalendarDurationFromDateTimeDescriptor method createEvaluatorFactory.

@Override
public IScalarEvaluatorFactory createEvaluatorFactory(final IScalarEvaluatorFactory[] args) {
    return new IScalarEvaluatorFactory() {

        private static final long serialVersionUID = 1L;

        @Override
        public IScalarEvaluator createScalarEvaluator(final IHyracksTaskContext ctx) throws HyracksDataException {
            return new IScalarEvaluator() {

                private ArrayBackedValueStorage resultStorage = new ArrayBackedValueStorage();

                private DataOutput out = resultStorage.getDataOutput();

                private IPointable argPtr0 = new VoidPointable();

                private IPointable argPtr1 = new VoidPointable();

                private IScalarEvaluator eval0 = args[0].createScalarEvaluator(ctx);

                private IScalarEvaluator eval1 = args[1].createScalarEvaluator(ctx);

                @SuppressWarnings("unchecked")
                private ISerializerDeserializer<ADuration> durationSerde = SerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.ADURATION);

                private AMutableDuration aDuration = new AMutableDuration(0, 0);

                private GregorianCalendarSystem calInstanct = GregorianCalendarSystem.getInstance();

                @Override
                public void evaluate(IFrameTupleReference tuple, IPointable result) throws HyracksDataException {
                    resultStorage.reset();
                    eval0.evaluate(tuple, argPtr0);
                    eval1.evaluate(tuple, argPtr1);
                    byte[] bytes0 = argPtr0.getByteArray();
                    int offset0 = argPtr0.getStartOffset();
                    byte[] bytes1 = argPtr1.getByteArray();
                    int offset1 = argPtr1.getStartOffset();
                    if (bytes0[offset0] != ATypeTag.SERIALIZED_DATETIME_TYPE_TAG) {
                        throw new TypeMismatchException(getIdentifier(), 0, bytes0[offset0], ATypeTag.SERIALIZED_DATETIME_TYPE_TAG);
                    }
                    if (bytes1[offset1] != ATypeTag.SERIALIZED_DURATION_TYPE_TAG) {
                        throw new TypeMismatchException(getIdentifier(), 1, bytes1[offset1], ATypeTag.SERIALIZED_DURATION_TYPE_TAG);
                    }
                    int yearMonthDurationInMonths = ADurationSerializerDeserializer.getYearMonth(bytes1, offset1 + 1);
                    long dayTimeDurationInMs = ADurationSerializerDeserializer.getDayTime(bytes1, offset1 + 1);
                    long startingTimePoint = ADateTimeSerializerDeserializer.getChronon(bytes0, offset0 + 1);
                    long endingTimePoint = DurationArithmeticOperations.addDuration(startingTimePoint, yearMonthDurationInMonths, dayTimeDurationInMs, false);
                    if (startingTimePoint == endingTimePoint) {
                        aDuration.setValue(0, 0);
                    } else {
                        boolean negative = false;
                        if (endingTimePoint < startingTimePoint) {
                            negative = true;
                            // swap the starting and ending time, so that ending time is always larger than the
                            // starting time.
                            long tmpTime = endingTimePoint;
                            endingTimePoint = startingTimePoint;
                            startingTimePoint = tmpTime;
                        }
                        int year0 = calInstanct.getYear(startingTimePoint);
                        int month0 = calInstanct.getMonthOfYear(startingTimePoint, year0);
                        int year1 = calInstanct.getYear(endingTimePoint);
                        int month1 = calInstanct.getMonthOfYear(endingTimePoint, year1);
                        int year = year1 - year0;
                        int month = month1 - month0;
                        int day = calInstanct.getDayOfMonthYear(endingTimePoint, year1, month1) - calInstanct.getDayOfMonthYear(startingTimePoint, year0, month0);
                        int hour = calInstanct.getHourOfDay(endingTimePoint) - calInstanct.getHourOfDay(startingTimePoint);
                        int min = calInstanct.getMinOfHour(endingTimePoint) - calInstanct.getMinOfHour(startingTimePoint);
                        int sec = calInstanct.getSecOfMin(endingTimePoint) - calInstanct.getSecOfMin(startingTimePoint);
                        int ms = calInstanct.getMillisOfSec(endingTimePoint) - calInstanct.getMillisOfSec(startingTimePoint);
                        if (ms < 0) {
                            ms += GregorianCalendarSystem.CHRONON_OF_SECOND;
                            sec -= 1;
                        }
                        if (sec < 0) {
                            sec += GregorianCalendarSystem.CHRONON_OF_MINUTE / GregorianCalendarSystem.CHRONON_OF_SECOND;
                            min -= 1;
                        }
                        if (min < 0) {
                            min += GregorianCalendarSystem.CHRONON_OF_HOUR / GregorianCalendarSystem.CHRONON_OF_MINUTE;
                            hour -= 1;
                        }
                        if (hour < 0) {
                            hour += GregorianCalendarSystem.CHRONON_OF_DAY / GregorianCalendarSystem.CHRONON_OF_HOUR;
                            day -= 1;
                        }
                        if (day < 0) {
                            boolean isLeapYear = calInstanct.isLeapYear(year1);
                            // need to "borrow" the days in previous month to make the day positive; when month is
                            // 1 (Jan), Dec will be borrowed
                            day += isLeapYear ? (GregorianCalendarSystem.DAYS_OF_MONTH_LEAP[(12 + month1 - 2) % 12]) : (GregorianCalendarSystem.DAYS_OF_MONTH_ORDI[(12 + month1 - 2) % 12]);
                            month -= 1;
                        }
                        if (month < 0) {
                            month += GregorianCalendarSystem.MONTHS_IN_A_YEAR;
                            year -= 1;
                        }
                        if (negative) {
                            aDuration.setValue(-1 * (year * GregorianCalendarSystem.MONTHS_IN_A_YEAR + month), -1 * (day * GregorianCalendarSystem.CHRONON_OF_DAY + hour * GregorianCalendarSystem.CHRONON_OF_HOUR + min * GregorianCalendarSystem.CHRONON_OF_MINUTE + sec * GregorianCalendarSystem.CHRONON_OF_SECOND + ms));
                        } else {
                            aDuration.setValue(year * GregorianCalendarSystem.MONTHS_IN_A_YEAR + month, day * GregorianCalendarSystem.CHRONON_OF_DAY + hour * GregorianCalendarSystem.CHRONON_OF_HOUR + min * GregorianCalendarSystem.CHRONON_OF_MINUTE + sec * GregorianCalendarSystem.CHRONON_OF_SECOND + ms);
                        }
                    }
                    durationSerde.serialize(aDuration, out);
                    result.set(resultStorage);
                }
            };
        }
    };
}

Example 35 with DataOutput

use of java.io.DataOutput in project asterixdb by apache.

the class StringSplitDescriptor method createEvaluatorFactory.

@Override
public IScalarEvaluatorFactory createEvaluatorFactory(final IScalarEvaluatorFactory[] args) {
    return new IScalarEvaluatorFactory() {

        private static final long serialVersionUID = 1L;

        @Override
        public IScalarEvaluator createScalarEvaluator(final IHyracksTaskContext ctx) throws HyracksDataException {
            return new IScalarEvaluator() {

                // Argument evaluators.
                private final IScalarEvaluator stringEval = args[0].createScalarEvaluator(ctx);

                private final IScalarEvaluator patternEval = args[1].createScalarEvaluator(ctx);

                // Argument pointers.
                private final IPointable argString = new VoidPointable();

                private final IPointable argPattern = new VoidPointable();

                private final UTF8StringPointable argStrPtr = new UTF8StringPointable();

                private final UTF8StringPointable argPatternPtr = new UTF8StringPointable();

                // For an output string item.
                private final ArrayBackedValueStorage itemStorge = new ArrayBackedValueStorage();

                private final DataOutput itemOut = itemStorge.getDataOutput();

                private final byte[] tempLengthArray = new byte[5];

                // For the output list of strings.
                private final AOrderedListType intListType = new AOrderedListType(BuiltinType.ASTRING, null);

                private final OrderedListBuilder listBuilder = new OrderedListBuilder();

                private final ArrayBackedValueStorage resultStorage = new ArrayBackedValueStorage();

                private final DataOutput out = resultStorage.getDataOutput();

                @Override
                public void evaluate(IFrameTupleReference tuple, IPointable result) throws HyracksDataException {
                    try {
                        resultStorage.reset();
                        // Calls argument evaluators.
                        stringEval.evaluate(tuple, argString);
                        patternEval.evaluate(tuple, argPattern);
                        // Gets the bytes of the source string.
                        byte[] srcString = argString.getByteArray();
                        int srcOffset = argString.getStartOffset();
                        int srcLen = argString.getLength();
                        // Type check for the first argument.
                        if (srcString[srcOffset] != ATypeTag.SERIALIZED_STRING_TYPE_TAG) {
                            throw new TypeMismatchException(getIdentifier(), 0, srcString[srcOffset], ATypeTag.SERIALIZED_STRING_TYPE_TAG);
                        }
                        // Gets the bytes of the pattern string.
                        byte[] patternString = argPattern.getByteArray();
                        int patternOffset = argPattern.getStartOffset();
                        int patternLen = argPattern.getLength();
                        // Type check for the second argument.
                        if (patternString[patternOffset] != ATypeTag.SERIALIZED_STRING_TYPE_TAG) {
                            throw new TypeMismatchException(getIdentifier(), 1, patternString[patternOffset], ATypeTag.SERIALIZED_STRING_TYPE_TAG);
                        }
                        // Sets the UTF8 String pointables.
                        argStrPtr.set(srcString, srcOffset + 1, srcLen - 1);
                        argPatternPtr.set(patternString, patternOffset + 1, patternLen - 1);
                        // Gets the string length of the source string.
                        int inputStringLen = UTF8StringUtil.getUTFLength(srcString, srcOffset + 1);
                        int inputStringStart = srcOffset + 1 + UTF8StringUtil.getNumBytesToStoreLength(inputStringLen);
                        // Gets the string length of the pattern string.
                        int inputPatternLen = UTF8StringUtil.getUTFLength(patternString, patternOffset + 1);
                        // Handles the case that the pattern is "".
                        boolean emptyStringPattern = inputPatternLen == 0;
                        // Builds a list of strings.
                        listBuilder.reset(intListType);
                        int itemStrStart = 0;
                        int nextMatchStart;
                        while (itemStrStart < inputStringLen && (nextMatchStart = UTF8StringPointable.find(argStrPtr, argPatternPtr, false, itemStrStart)) >= 0) {
                            // Adds an item string.
                            addItemString(srcString, inputStringStart, itemStrStart, emptyStringPattern ? nextMatchStart + 1 : nextMatchStart);
                            itemStrStart = nextMatchStart + (emptyStringPattern ? 1 : inputPatternLen);
                        }
                        if (!emptyStringPattern) {
                            addItemString(srcString, inputStringStart, itemStrStart, inputStringLen);
                        }
                        listBuilder.write(out, true);
                        result.set(resultStorage);
                    } catch (IOException e1) {
                        throw new HyracksDataException(e1);
                    }
                }

                private void addItemString(byte[] srcString, int inputStringStart, int itemStartOffset, int nextMatchStart) throws IOException {
                    int itemLen = nextMatchStart - itemStartOffset;
                    int cbytes = UTF8StringUtil.encodeUTF8Length(itemLen, tempLengthArray, 0);
                    itemStorge.reset();
                    itemOut.writeByte(ATypeTag.SERIALIZED_STRING_TYPE_TAG);
                    itemOut.write(tempLengthArray, 0, cbytes);
                    if (itemLen > 0) {
                        itemOut.write(srcString, inputStringStart + itemStartOffset, itemLen);
                    }
                    listBuilder.addItem(itemStorge);
                }
            };
        }
    };
}