| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.vxquery.runtime.functions.comparison.general; |
| |
| import java.io.DataOutput; |
| |
| import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator; |
| import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory; |
| import org.apache.hyracks.api.context.IHyracksTaskContext; |
| import org.apache.hyracks.api.exceptions.HyracksDataException; |
| import org.apache.hyracks.data.std.api.IPointable; |
| import org.apache.hyracks.data.std.primitive.DoublePointable; |
| import org.apache.hyracks.data.std.primitive.VoidPointable; |
| import org.apache.hyracks.data.std.util.ArrayBackedValueStorage; |
| import org.apache.vxquery.context.DynamicContext; |
| import org.apache.vxquery.datamodel.accessors.SequencePointable; |
| import org.apache.vxquery.datamodel.accessors.TaggedValuePointable; |
| import org.apache.vxquery.datamodel.accessors.TypedPointables; |
| import org.apache.vxquery.datamodel.values.ValueTag; |
| import org.apache.vxquery.exceptions.ErrorCode; |
| import org.apache.vxquery.exceptions.SystemException; |
| import org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentScalarEvaluator; |
| import org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentScalarEvaluatorFactory; |
| import org.apache.vxquery.runtime.functions.cast.AbstractCastToOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToAnyURIOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToBase64BinaryOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToBooleanOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToByteOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToDTDurationOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToDateOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToDateTimeOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToDecimalOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToDoubleOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToDurationOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToFloatOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToGDayOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToGMonthDayOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToGMonthOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToGYearMonthOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToGYearOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToHexBinaryOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToIntOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToIntegerOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToLongOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToNegativeIntegerOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToNonNegativeIntegerOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToNonPositiveIntegerOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToPositiveIntegerOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToQNameOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToShortOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToStringOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToTimeOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToUnsignedByteOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToUnsignedIntOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToUnsignedLongOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToUnsignedShortOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToUntypedAtomicOperation; |
| import org.apache.vxquery.runtime.functions.cast.CastToYMDurationOperation; |
| import org.apache.vxquery.runtime.functions.comparison.AbstractValueComparisonOperation; |
| import org.apache.vxquery.runtime.functions.util.AtomizeHelper; |
| import org.apache.vxquery.runtime.functions.util.FunctionHelper; |
| |
| public abstract class AbstractGeneralComparisonScalarEvaluatorFactory extends |
| AbstractTaggedValueArgumentScalarEvaluatorFactory { |
| private static final long serialVersionUID = 1L; |
| |
| public AbstractGeneralComparisonScalarEvaluatorFactory(IScalarEvaluatorFactory[] args) { |
| super(args); |
| } |
| |
| @Override |
| protected IScalarEvaluator createEvaluator(IHyracksTaskContext ctx, IScalarEvaluator[] args) |
| throws HyracksDataException { |
| final AbstractValueComparisonOperation aOp = createValueComparisonOperation(); |
| final ArrayBackedValueStorage abvsInner1 = new ArrayBackedValueStorage(); |
| final DataOutput dOutInner1 = abvsInner1.getDataOutput(); |
| final ArrayBackedValueStorage abvsInner2 = new ArrayBackedValueStorage(); |
| final DataOutput dOutInner2 = abvsInner2.getDataOutput(); |
| |
| final AtomizeHelper ah = new AtomizeHelper(); |
| final TypedPointables tp1 = new TypedPointables(); |
| final TypedPointables tp2 = new TypedPointables(); |
| final DynamicContext dCtx = (DynamicContext) ctx.getJobletContext().getGlobalJobData(); |
| final SequencePointable seqp1 = (SequencePointable) SequencePointable.FACTORY.createPointable(); |
| final SequencePointable seqp2 = (SequencePointable) SequencePointable.FACTORY.createPointable(); |
| final VoidPointable p1 = (VoidPointable) VoidPointable.FACTORY.createPointable(); |
| final VoidPointable p2 = (VoidPointable) VoidPointable.FACTORY.createPointable(); |
| final TaggedValuePointable tvpSeq1 = (TaggedValuePointable) TaggedValuePointable.FACTORY.createPointable(); |
| final TaggedValuePointable tvpSeq2 = (TaggedValuePointable) TaggedValuePointable.FACTORY.createPointable(); |
| final TaggedValuePointable tvpTransform1 = (TaggedValuePointable) TaggedValuePointable.FACTORY |
| .createPointable(); |
| final TaggedValuePointable tvpTransform2 = (TaggedValuePointable) TaggedValuePointable.FACTORY |
| .createPointable(); |
| final TaggedValuePointable tvpCompare1 = (TaggedValuePointable) TaggedValuePointable.FACTORY.createPointable(); |
| final TaggedValuePointable tvpCompare2 = (TaggedValuePointable) TaggedValuePointable.FACTORY.createPointable(); |
| |
| return new AbstractTaggedValueArgumentScalarEvaluator(args) { |
| AbstractCastToOperation aCastToOp = new CastToStringOperation(); |
| |
| @Override |
| protected void evaluate(TaggedValuePointable[] args, IPointable result) throws SystemException { |
| boolean booleanResult = false; |
| TaggedValuePointable tvpArg1 = args[0]; |
| TaggedValuePointable tvpArg2 = args[1]; |
| try { |
| if (tvpArg1.getTag() == ValueTag.SEQUENCE_TAG) { |
| tvpArg1.getValue(seqp1); |
| int seqLen = seqp1.getEntryCount(); |
| for (int j = 0; j < seqLen; ++j) { |
| seqp1.getEntry(j, p1); |
| tvpSeq1.set(p1.getByteArray(), p1.getStartOffset(), p1.getLength()); |
| if (evaluateTaggedValueArgument2(aOp, tvpSeq1, tvpArg2, dCtx)) { |
| booleanResult = true; |
| break; |
| } |
| } |
| } else { |
| booleanResult = evaluateTaggedValueArgument2(aOp, tvpArg1, tvpArg2, dCtx); |
| } |
| |
| byte[] byteResult = new byte[2]; |
| byteResult[0] = ValueTag.XS_BOOLEAN_TAG; |
| byteResult[1] = (byte) (booleanResult ? 1 : 0); |
| result.set(byteResult, 0, 2); |
| } catch (SystemException se) { |
| throw se; |
| } catch (Exception e) { |
| throw new SystemException(ErrorCode.SYSE0001, e); |
| } |
| } |
| |
| /** |
| * Check the second argument for a sequence and loop if required. |
| * |
| * @param aOp |
| * @param tvpArg1 |
| * @param tvpArg2 |
| * @param dCtx |
| * @return |
| * @throws SystemException |
| */ |
| protected boolean evaluateTaggedValueArgument2(AbstractValueComparisonOperation aOp, |
| TaggedValuePointable tvpArg1, TaggedValuePointable tvpArg2, DynamicContext dCtx) |
| throws SystemException { |
| try { |
| if (tvpArg2.getTag() == ValueTag.SEQUENCE_TAG) { |
| tvpArg2.getValue(seqp2); |
| int seqLen = seqp2.getEntryCount(); |
| for (int j = 0; j < seqLen; ++j) { |
| seqp2.getEntry(j, p2); |
| tvpSeq2.set(p2.getByteArray(), p2.getStartOffset(), p2.getLength()); |
| if (transformThenCompareTaggedValues(aOp, tvpArg1, tvpSeq2, dCtx)) { |
| return true; |
| } |
| } |
| } else { |
| return transformThenCompareTaggedValues(aOp, tvpArg1, tvpArg2, dCtx); |
| } |
| } catch (SystemException se) { |
| throw se; |
| } catch (Exception e) { |
| throw new SystemException(ErrorCode.SYSE0001, e); |
| } |
| return false; |
| } |
| |
| /** |
| * Transform the values into values supported for general comparison. |
| * |
| * @param aOp |
| * @param tvpArg1 |
| * @param tvpArg2 |
| * @param dCtx |
| * @return |
| * @throws SystemException |
| */ |
| protected boolean transformThenCompareTaggedValues(AbstractValueComparisonOperation aOp, |
| TaggedValuePointable tvpArg1, TaggedValuePointable tvpArg2, DynamicContext dCtx) |
| throws SystemException { |
| boolean tagTransformed1 = false, tagTransformed2 = false; |
| abvsInner1.reset(); |
| abvsInner2.reset(); |
| tvpTransform1.set(tvpArg1); |
| tvpTransform2.set(tvpArg2); |
| int tid1 = FunctionHelper.getBaseTypeForGeneralComparisons(tvpTransform1.getTag()); |
| int tid2 = FunctionHelper.getBaseTypeForGeneralComparisons(tvpTransform2.getTag()); |
| |
| // Converted tags |
| try { |
| // Converts node tree's into untyped atomic values that can then be compared as atomic items. |
| if (tid1 == ValueTag.NODE_TREE_TAG && tid2 == ValueTag.NODE_TREE_TAG) { |
| ah.atomize(tvpArg1, ppool, tvpTransform1); |
| ah.atomize(tvpArg2, ppool, tvpTransform2); |
| tid1 = FunctionHelper.getBaseTypeForGeneralComparisons(tvpTransform1.getTag()); |
| tid2 = FunctionHelper.getBaseTypeForGeneralComparisons(tvpTransform2.getTag()); |
| } else if (tid1 == ValueTag.NODE_TREE_TAG) { |
| ah.atomize(tvpArg1, ppool, tvpTransform1); |
| tid1 = FunctionHelper.getBaseTypeForGeneralComparisons(tvpTransform1.getTag()); |
| } else if (tid2 == ValueTag.NODE_TREE_TAG) { |
| ah.atomize(tvpArg2, ppool, tvpTransform2); |
| tid2 = FunctionHelper.getBaseTypeForGeneralComparisons(tvpTransform2.getTag()); |
| } |
| |
| // Set up value comparison tagged value pointables. |
| if (tid1 == ValueTag.XS_UNTYPED_ATOMIC_TAG && tid2 == ValueTag.XS_UNTYPED_ATOMIC_TAG) { |
| // Only need to change tag since the storage is the same for untyped atomic and string. |
| dOutInner1.write(tvpTransform1.getByteArray(), tvpTransform1.getStartOffset(), |
| tvpTransform1.getLength()); |
| tvpCompare1.set(abvsInner1.getByteArray(), abvsInner1.getStartOffset(), abvsInner1.getLength()); |
| tvpCompare1.getByteArray()[0] = ValueTag.XS_STRING_TAG; |
| tagTransformed1 = true; |
| dOutInner2.write(tvpTransform2.getByteArray(), tvpTransform2.getStartOffset(), |
| tvpTransform2.getLength()); |
| tvpCompare2.set(abvsInner2.getByteArray(), abvsInner2.getStartOffset(), abvsInner2.getLength()); |
| tvpCompare2.getByteArray()[0] = ValueTag.XS_STRING_TAG; |
| tagTransformed2 = true; |
| } else if (tid1 == ValueTag.XS_UNTYPED_ATOMIC_TAG) { |
| tid1 = tid2; |
| getCastToOperator(tid2); |
| tvpTransform1.getValue(tp1.utf8sp); |
| aCastToOp.convertUntypedAtomic(tp1.utf8sp, dOutInner1); |
| tvpCompare1.set(abvsInner1.getByteArray(), abvsInner1.getStartOffset(), abvsInner1.getLength()); |
| tagTransformed1 = true; |
| } else if (tid2 == ValueTag.XS_UNTYPED_ATOMIC_TAG) { |
| tid2 = tid1; |
| getCastToOperator(tid1); |
| tvpTransform2.getValue(tp2.utf8sp); |
| aCastToOp.convertUntypedAtomic(tp2.utf8sp, dOutInner2); |
| tvpCompare2.set(abvsInner2.getByteArray(), abvsInner2.getStartOffset(), abvsInner2.getLength()); |
| tagTransformed2 = true; |
| } |
| // Copy over the values not changed and upgrade numeric values to double. |
| if (!tagTransformed1) { |
| tvpCompare1.set(tvpTransform1); |
| if (FunctionHelper.isDerivedFromDouble(tvpCompare1.getTag())) { |
| FunctionHelper.getDoublePointable(tvpTransform1, dOutInner1, tp1); |
| tvpCompare1.set(abvsInner1.getByteArray(), abvsInner1.getStartOffset(), |
| DoublePointable.TYPE_TRAITS.getFixedLength() + 1); |
| tagTransformed1 = true; |
| } |
| } |
| if (!tagTransformed2) { |
| tvpCompare2.set(tvpTransform2); |
| if (FunctionHelper.isDerivedFromDouble(tvpCompare2.getTag())) { |
| FunctionHelper.getDoublePointable(tvpTransform2, dOutInner2, tp2); |
| tvpCompare2.set(abvsInner2.getByteArray(), abvsInner2.getStartOffset(), |
| DoublePointable.TYPE_TRAITS.getFixedLength() + 1); |
| tagTransformed2 = true; |
| } |
| } |
| } catch (SystemException se) { |
| throw se; |
| } catch (Exception e) { |
| throw new SystemException(ErrorCode.SYSE0001, e); |
| } |
| return FunctionHelper.compareTaggedValues(aOp, tvpCompare1, tvpCompare2, dCtx, tp1, tp2); |
| } |
| |
| private void getCastToOperator(int tid) { |
| switch (tid) { |
| case ValueTag.XS_ANY_URI_TAG: |
| aCastToOp = new CastToAnyURIOperation(); |
| break; |
| case ValueTag.XS_BASE64_BINARY_TAG: |
| aCastToOp = new CastToBase64BinaryOperation(); |
| break; |
| case ValueTag.XS_BOOLEAN_TAG: |
| aCastToOp = new CastToBooleanOperation(); |
| break; |
| case ValueTag.XS_DATE_TAG: |
| aCastToOp = new CastToDateOperation(); |
| break; |
| case ValueTag.XS_DATETIME_TAG: |
| aCastToOp = new CastToDateTimeOperation(); |
| break; |
| case ValueTag.XS_DAY_TIME_DURATION_TAG: |
| aCastToOp = new CastToDTDurationOperation(); |
| break; |
| case ValueTag.XS_DURATION_TAG: |
| aCastToOp = new CastToDurationOperation(); |
| break; |
| case ValueTag.XS_HEX_BINARY_TAG: |
| aCastToOp = new CastToHexBinaryOperation(); |
| break; |
| case ValueTag.XS_G_DAY_TAG: |
| aCastToOp = new CastToGDayOperation(); |
| break; |
| case ValueTag.XS_G_MONTH_DAY_TAG: |
| aCastToOp = new CastToGMonthDayOperation(); |
| break; |
| case ValueTag.XS_G_MONTH_TAG: |
| aCastToOp = new CastToGMonthOperation(); |
| break; |
| case ValueTag.XS_G_YEAR_MONTH_TAG: |
| aCastToOp = new CastToGYearMonthOperation(); |
| break; |
| case ValueTag.XS_G_YEAR_TAG: |
| aCastToOp = new CastToGYearOperation(); |
| break; |
| case ValueTag.XS_QNAME_TAG: |
| aCastToOp = new CastToQNameOperation(); |
| break; |
| case ValueTag.XS_STRING_TAG: |
| aCastToOp = new CastToStringOperation(); |
| break; |
| case ValueTag.XS_TIME_TAG: |
| aCastToOp = new CastToTimeOperation(); |
| break; |
| case ValueTag.XS_UNTYPED_ATOMIC_TAG: |
| aCastToOp = new CastToUntypedAtomicOperation(); |
| break; |
| case ValueTag.XS_YEAR_MONTH_DURATION_TAG: |
| aCastToOp = new CastToYMDurationOperation(); |
| break; |
| case ValueTag.XS_DECIMAL_TAG: |
| aCastToOp = new CastToDecimalOperation(); |
| break; |
| case ValueTag.XS_DOUBLE_TAG: |
| aCastToOp = new CastToDoubleOperation(); |
| break; |
| case ValueTag.XS_FLOAT_TAG: |
| aCastToOp = new CastToFloatOperation(); |
| break; |
| case ValueTag.XS_INTEGER_TAG: |
| aCastToOp = new CastToIntegerOperation(); |
| break; |
| case ValueTag.XS_NON_POSITIVE_INTEGER_TAG: |
| aCastToOp = new CastToNonPositiveIntegerOperation(); |
| break; |
| case ValueTag.XS_NEGATIVE_INTEGER_TAG: |
| aCastToOp = new CastToNegativeIntegerOperation(); |
| break; |
| case ValueTag.XS_LONG_TAG: |
| aCastToOp = new CastToLongOperation(); |
| break; |
| case ValueTag.XS_NON_NEGATIVE_INTEGER_TAG: |
| aCastToOp = new CastToNonNegativeIntegerOperation(); |
| break; |
| case ValueTag.XS_UNSIGNED_LONG_TAG: |
| aCastToOp = new CastToUnsignedLongOperation(); |
| break; |
| case ValueTag.XS_POSITIVE_INTEGER_TAG: |
| aCastToOp = new CastToPositiveIntegerOperation(); |
| break; |
| case ValueTag.XS_INT_TAG: |
| aCastToOp = new CastToIntOperation(); |
| break; |
| case ValueTag.XS_UNSIGNED_INT_TAG: |
| aCastToOp = new CastToUnsignedIntOperation(); |
| break; |
| case ValueTag.XS_SHORT_TAG: |
| aCastToOp = new CastToShortOperation(); |
| break; |
| case ValueTag.XS_UNSIGNED_SHORT_TAG: |
| aCastToOp = new CastToUnsignedShortOperation(); |
| break; |
| case ValueTag.XS_BYTE_TAG: |
| aCastToOp = new CastToByteOperation(); |
| break; |
| case ValueTag.XS_UNSIGNED_BYTE_TAG: |
| aCastToOp = new CastToUnsignedByteOperation(); |
| break; |
| default: |
| aCastToOp = new CastToUntypedAtomicOperation(); |
| } |
| } |
| |
| }; |
| } |
| |
| protected abstract AbstractValueComparisonOperation createValueComparisonOperation(); |
| } |
