Examples with IScalarEvaluatorFactory org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory used on opensource projects

Example 6 with IScalarEvaluatorFactory

use of org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory 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 7 with IScalarEvaluatorFactory

use of org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory 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);
                }
            };
        }
    };
}

Example 8 with IScalarEvaluatorFactory

use of org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory in project asterixdb by apache.

the class StringToCodePointDescriptor 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 ArrayBackedValueStorage resultStorage = new ArrayBackedValueStorage();

                protected final DataOutput out = resultStorage.getDataOutput();

                protected final IPointable argPtr = new VoidPointable();

                protected final IScalarEvaluator stringEval = args[0].createScalarEvaluator(ctx);

                protected final AOrderedListType intListType = new AOrderedListType(BuiltinType.AINT64, null);

                private OrderedListBuilder listBuilder = new OrderedListBuilder();

                private ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();

                @SuppressWarnings("unchecked")
                private final ISerializerDeserializer<AInt64> int64Serde = SerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.AINT64);

                private final AMutableInt64 aInt64 = new AMutableInt64(0);

                @Override
                public void evaluate(IFrameTupleReference tuple, IPointable result) throws HyracksDataException {
                    try {
                        resultStorage.reset();
                        stringEval.evaluate(tuple, argPtr);
                        byte[] serString = argPtr.getByteArray();
                        int offset = argPtr.getStartOffset();
                        if (serString[offset] == ATypeTag.SERIALIZED_STRING_TYPE_TAG) {
                            int len = UTF8StringUtil.getUTFLength(serString, offset + 1);
                            int start = offset + 1 + UTF8StringUtil.getNumBytesToStoreLength(len);
                            int pos = 0;
                            listBuilder.reset(intListType);
                            while (pos < len) {
                                int codePoint = UTF8StringUtil.UTF8ToCodePoint(serString, start + pos);
                                pos += UTF8StringUtil.charSize(serString, start + pos);
                                inputVal.reset();
                                aInt64.setValue(codePoint);
                                int64Serde.serialize(aInt64, inputVal.getDataOutput());
                                listBuilder.addItem(inputVal);
                            }
                            listBuilder.write(out, true);
                        } else {
                            throw new TypeMismatchException(getIdentifier(), 0, serString[offset], ATypeTag.SERIALIZED_STRING_TYPE_TAG);
                        }
                        result.set(resultStorage);
                    } catch (IOException e1) {
                        throw new HyracksDataException(e1);
                    }
                }
            };
        }
    };
}

Example 9 with IScalarEvaluatorFactory

use of org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory in project asterixdb by apache.

the class StringTrim2Descriptor method createEvaluatorFactory.

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

        private static final long serialVersionUID = 1L;

        @Override
        public IScalarEvaluator createScalarEvaluator(IHyracksTaskContext ctx) throws HyracksDataException {
            return new AbstractBinaryStringStringEval(ctx, args[0], args[1], StringTrim2Descriptor.this.getIdentifier()) {

                private StringTrimmer stringTrimmer = new StringTrimmer(resultBuilder, resultArray);

                @Override
                protected void compute(UTF8StringPointable srcPtr, UTF8StringPointable patternPtr, UTF8StringPointable resultStrPtr) throws IOException {
                    stringTrimmer.build(patternPtr);
                    stringTrimmer.trim(srcPtr, resultStrPtr, true, true);
                }
            };
        }
    };
}

Example 10 with IScalarEvaluatorFactory

use of org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory in project asterixdb by apache.

the class RecordAddFieldsDescriptor 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 {
            final PointableAllocator allocator = new PointableAllocator();
            final IVisitablePointable vp0 = allocator.allocateRecordValue(inRecType);
            final IVisitablePointable vp1 = allocator.allocateListValue(inListType);
            final IPointable argPtr0 = new VoidPointable();
            final IPointable argPtr1 = new VoidPointable();
            final IScalarEvaluator eval0 = args[0].createScalarEvaluator(ctx);
            final IScalarEvaluator eval1 = args[1].createScalarEvaluator(ctx);
            final ArrayBackedValueStorage fieldNamePointable = new ArrayBackedValueStorage();
            final ArrayBackedValueStorage fieldValuePointer = new ArrayBackedValueStorage();
            final PointableHelper pointableHelper = new PointableHelper();
            try {
                pointableHelper.serializeString("field-name", fieldNamePointable, true);
                pointableHelper.serializeString("field-value", fieldValuePointer, true);
            } catch (AsterixException e) {
                throw new HyracksDataException(e);
            }
            return new IScalarEvaluator() {

                // the default 32k frame size
                public static final int TABLE_FRAME_SIZE = 32768;

                // the default 32k frame size
                public static final int TABLE_SIZE = 100;

                private final RecordBuilder recordBuilder = new RecordBuilder();

                private final RuntimeRecordTypeInfo requiredRecordTypeInfo = new RuntimeRecordTypeInfo();

                private final IBinaryHashFunction putHashFunc = ListItemBinaryHashFunctionFactory.INSTANCE.createBinaryHashFunction();

                private final IBinaryHashFunction getHashFunc = ListItemBinaryHashFunctionFactory.INSTANCE.createBinaryHashFunction();

                private final BinaryEntry keyEntry = new BinaryEntry();

                private final BinaryEntry valEntry = new BinaryEntry();

                private final IVisitablePointable tempValReference = allocator.allocateEmpty();

                private final IBinaryComparator cmp = ListItemBinaryComparatorFactory.INSTANCE.createBinaryComparator();

                private BinaryHashMap hashMap = new BinaryHashMap(TABLE_SIZE, TABLE_FRAME_SIZE, putHashFunc, getHashFunc, cmp);

                private ArrayBackedValueStorage resultStorage = new ArrayBackedValueStorage();

                private DataOutput out = resultStorage.getDataOutput();

                @Override
                public void evaluate(IFrameTupleReference tuple, IPointable result) throws HyracksDataException {
                    resultStorage.reset();
                    recordBuilder.reset(outRecType);
                    requiredRecordTypeInfo.reset(outRecType);
                    eval0.evaluate(tuple, argPtr0);
                    eval1.evaluate(tuple, argPtr1);
                    // Make sure we get a valid record
                    byte typeTag0 = argPtr0.getByteArray()[argPtr0.getStartOffset()];
                    if (typeTag0 != ATypeTag.SERIALIZED_RECORD_TYPE_TAG) {
                        throw new TypeMismatchException(getIdentifier(), 0, typeTag0, ATypeTag.SERIALIZED_RECORD_TYPE_TAG);
                    }
                    // Make sure we get a valid list
                    byte typeTag1 = argPtr1.getByteArray()[argPtr1.getStartOffset()];
                    if (typeTag1 != ATypeTag.SERIALIZED_ORDEREDLIST_TYPE_TAG) {
                        throw new TypeMismatchException(getIdentifier(), 1, typeTag1, ATypeTag.SERIALIZED_ORDEREDLIST_TYPE_TAG);
                    }
                    vp0.set(argPtr0);
                    vp1.set(argPtr1);
                    ARecordVisitablePointable recordPointable = (ARecordVisitablePointable) vp0;
                    AListVisitablePointable listPointable = (AListVisitablePointable) vp1;
                    // Initialize our hashmap
                    int tableSize = recordPointable.getFieldNames().size() + listPointable.getItems().size();
                    // Thus avoiding unnecessary object construction
                    if (hashMap == null || tableSize > TABLE_SIZE) {
                        hashMap = new BinaryHashMap(tableSize, TABLE_FRAME_SIZE, putHashFunc, getHashFunc, cmp);
                    } else {
                        hashMap.clear();
                    }
                    addFields(recordPointable, listPointable);
                    recordBuilder.write(out, true);
                    result.set(resultStorage);
                }

                private void addFields(ARecordVisitablePointable inputRecordPointer, AListVisitablePointable listPointable) throws HyracksDataException {
                    List<IVisitablePointable> inputRecordFieldNames = inputRecordPointer.getFieldNames();
                    List<IVisitablePointable> inputRecordFieldValues = inputRecordPointer.getFieldValues();
                    List<IVisitablePointable> inputFields = listPointable.getItems();
                    IVisitablePointable namePointable = null;
                    IVisitablePointable valuePointable = null;
                    int numInputRecordFields = inputRecordFieldNames.size();
                    try {
                        // Add original record without duplicate checking
                        for (int i = 0; i < numInputRecordFields; ++i) {
                            IVisitablePointable fnp = inputRecordFieldNames.get(i);
                            IVisitablePointable fvp = inputRecordFieldValues.get(i);
                            int pos = requiredRecordTypeInfo.getFieldIndex(fnp.getByteArray(), fnp.getStartOffset() + 1, fnp.getLength() - 1);
                            if (pos >= 0) {
                                recordBuilder.addField(pos, fvp);
                            } else {
                                recordBuilder.addField(fnp, fvp);
                            }
                            keyEntry.set(fnp.getByteArray(), fnp.getStartOffset(), fnp.getLength());
                            valEntry.set(fvp.getByteArray(), fvp.getStartOffset(), fvp.getLength());
                            hashMap.put(keyEntry, valEntry);
                        }
                        // Get the fields from a list of records
                        for (int i = 0; i < inputFields.size(); i++) {
                            if (!PointableHelper.sameType(ATypeTag.OBJECT, inputFields.get(i))) {
                                throw new AsterixException("Expected list of record, got " + PointableHelper.getTypeTag(inputFields.get(i)));
                            }
                            List<IVisitablePointable> names = ((ARecordVisitablePointable) inputFields.get(i)).getFieldNames();
                            List<IVisitablePointable> values = ((ARecordVisitablePointable) inputFields.get(i)).getFieldValues();
                            // Get name and value of the field to be added
                            // Use loop to account for the cases where users switches the order of the fields
                            IVisitablePointable fieldName;
                            for (int j = 0; j < names.size(); j++) {
                                fieldName = names.get(j);
                                // if fieldName is "field-name" then read the name
                                if (PointableHelper.byteArrayEqual(fieldNamePointable, fieldName)) {
                                    namePointable = values.get(j);
                                } else {
                                    // otherwise the fieldName is "field-value". Thus, read the value
                                    valuePointable = values.get(j);
                                }
                            }
                            if (namePointable == null || valuePointable == null) {
                                throw new InvalidDataFormatException(getIdentifier(), "fields to be added");
                            }
                            // Check that the field being added is a valid field
                            int pos = requiredRecordTypeInfo.getFieldIndex(namePointable.getByteArray(), namePointable.getStartOffset() + 1, namePointable.getLength() - 1);
                            keyEntry.set(namePointable.getByteArray(), namePointable.getStartOffset(), namePointable.getLength());
                            // Check if already in our built record
                            BinaryEntry entry = hashMap.get(keyEntry);
                            if (entry != null) {
                                tempValReference.set(entry.getBuf(), entry.getOffset(), entry.getLength());
                                // If value is not equal throw conflicting duplicate field, otherwise ignore
                                if (!PointableHelper.byteArrayEqual(valuePointable, tempValReference)) {
                                    throw new RuntimeDataException(ErrorCode.DUPLICATE_FIELD_NAME, getIdentifier());
                                }
                            } else {
                                if (pos > -1) {
                                    recordBuilder.addField(pos, valuePointable);
                                } else {
                                    recordBuilder.addField(namePointable, valuePointable);
                                }
                                valEntry.set(valuePointable.getByteArray(), valuePointable.getStartOffset(), valuePointable.getLength());
                                hashMap.put(keyEntry, valEntry);
                            }
                        }
                    } catch (AsterixException e) {
                        throw new HyracksDataException(e);
                    }
                }
            };
        }
    };
}