Examples with AMutableDate org.apache.asterix.om.base.AMutableDate used on opensource projects

Example 11 with AMutableDate

use of org.apache.asterix.om.base.AMutableDate in project asterixdb by apache.

the class ParseDateDescriptor 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<ADate> dateSerde = SerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.ADATE);

                private AMutableDate aDate = new AMutableDate(0);

                private final UTF8StringPointable utf8Ptr = new UTF8StringPointable();

                @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();
                    int len0 = argPtr0.getLength();
                    byte[] bytes1 = argPtr1.getByteArray();
                    int offset1 = argPtr1.getStartOffset();
                    int len1 = argPtr1.getLength();
                    if (bytes0[offset0] != ATypeTag.SERIALIZED_STRING_TYPE_TAG) {
                        throw new TypeMismatchException(getIdentifier(), 0, bytes0[offset0], ATypeTag.SERIALIZED_STRING_TYPE_TAG);
                    }
                    if (bytes1[offset1] != ATypeTag.SERIALIZED_STRING_TYPE_TAG) {
                        throw new TypeMismatchException(getIdentifier(), 1, bytes1[offset1], ATypeTag.SERIALIZED_STRING_TYPE_TAG);
                    }
                    utf8Ptr.set(bytes0, offset0 + 1, len0 - 1);
                    int start0 = utf8Ptr.getCharStartOffset();
                    int length0 = utf8Ptr.getUTF8Length();
                    utf8Ptr.set(bytes1, offset1 + 1, len1 - 1);
                    int start1 = utf8Ptr.getCharStartOffset();
                    int length1 = utf8Ptr.getUTF8Length();
                    long chronon = 0;
                    int formatStart = start1;
                    int formatLength;
                    boolean processSuccessfully = false;
                    while (!processSuccessfully && formatStart < start1 + length1) {
                        // search for "|"
                        formatLength = 0;
                        for (; formatStart + formatLength < start1 + length1; formatLength++) {
                            if (argPtr1.getByteArray()[formatStart + formatLength] == '|') {
                                break;
                            }
                        }
                        try {
                            chronon = DT_UTILS.parseDateTime(bytes0, start0, length0, bytes1, formatStart, formatLength, DateTimeParseMode.DATE_ONLY);
                        } catch (AsterixTemporalTypeParseException ex) {
                            formatStart += formatLength + 1;
                            continue;
                        }
                        processSuccessfully = true;
                    }
                    if (!processSuccessfully) {
                        throw new InvalidDataFormatException(getIdentifier(), ATypeTag.SERIALIZED_DATE_TYPE_TAG);
                    }
                    aDate.setValue((int) (chronon / GregorianCalendarSystem.CHRONON_OF_DAY));
                    dateSerde.serialize(aDate, out);
                    result.set(resultStorage);
                }
            };
        }
    };
}