| /* |
| * 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.asterix.runtime.evaluators.functions; |
| |
| import java.io.DataOutput; |
| |
| import org.apache.asterix.common.annotations.MissingNullInOutFunction; |
| import org.apache.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer; |
| import org.apache.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer; |
| import org.apache.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer; |
| import org.apache.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer; |
| import org.apache.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer; |
| import org.apache.asterix.dataflow.data.nontagged.serde.AInt8SerializerDeserializer; |
| import org.apache.asterix.formats.nontagged.SerializerDeserializerProvider; |
| import org.apache.asterix.om.base.AMutableDouble; |
| import org.apache.asterix.om.base.AMutableFloat; |
| import org.apache.asterix.om.base.AMutableInt16; |
| import org.apache.asterix.om.base.AMutableInt32; |
| import org.apache.asterix.om.base.AMutableInt64; |
| import org.apache.asterix.om.base.AMutableInt8; |
| import org.apache.asterix.om.functions.BuiltinFunctions; |
| import org.apache.asterix.om.functions.IFunctionDescriptor; |
| import org.apache.asterix.om.functions.IFunctionDescriptorFactory; |
| import org.apache.asterix.om.types.ATypeTag; |
| import org.apache.asterix.om.types.BuiltinType; |
| import org.apache.asterix.om.types.EnumDeserializer; |
| import org.apache.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor; |
| import org.apache.asterix.runtime.exceptions.TypeMismatchException; |
| import org.apache.hyracks.algebricks.core.algebra.functions.FunctionIdentifier; |
| import org.apache.hyracks.algebricks.runtime.base.IEvaluatorContext; |
| import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator; |
| import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory; |
| import org.apache.hyracks.api.dataflow.value.ISerializerDeserializer; |
| import org.apache.hyracks.api.exceptions.HyracksDataException; |
| import org.apache.hyracks.data.std.api.IPointable; |
| import org.apache.hyracks.data.std.primitive.VoidPointable; |
| import org.apache.hyracks.data.std.util.ArrayBackedValueStorage; |
| import org.apache.hyracks.dataflow.common.data.accessors.IFrameTupleReference; |
| |
| @MissingNullInOutFunction |
| public class NumericSubtractDescriptor extends AbstractScalarFunctionDynamicDescriptor { |
| |
| private static final long serialVersionUID = 1L; |
| public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() { |
| @Override |
| public IFunctionDescriptor createFunctionDescriptor() { |
| return new NumericSubtractDescriptor(); |
| } |
| }; |
| |
| @Override |
| public FunctionIdentifier getIdentifier() { |
| return BuiltinFunctions.NUMERIC_SUBTRACT; |
| } |
| |
| @Override |
| public IScalarEvaluatorFactory createEvaluatorFactory(final IScalarEvaluatorFactory[] args) { |
| return new IScalarEvaluatorFactory() { |
| private static final long serialVersionUID = 1L; |
| |
| @Override |
| public IScalarEvaluator createScalarEvaluator(final IEvaluatorContext ctx) throws HyracksDataException { |
| |
| return new IScalarEvaluator() { |
| private ArrayBackedValueStorage resultStorage = new ArrayBackedValueStorage(); |
| private DataOutput out = resultStorage.getDataOutput(); |
| // one temp. buffer re-used by both children |
| private IPointable argPtr = new VoidPointable(); |
| private IScalarEvaluator evalLeft = args[0].createScalarEvaluator(ctx); |
| private IScalarEvaluator evalRight = args[1].createScalarEvaluator(ctx); |
| private double[] operands = new double[args.length]; |
| private boolean metInt8 = false, metInt16 = false, metInt32 = false, metInt64 = false, |
| metFloat = false, metDouble = false; |
| private ATypeTag typeTag; |
| private AMutableDouble aDouble = new AMutableDouble(0); |
| private AMutableFloat aFloat = new AMutableFloat(0); |
| private AMutableInt64 aInt64 = new AMutableInt64(0); |
| private AMutableInt32 aInt32 = new AMutableInt32(0); |
| private AMutableInt16 aInt16 = new AMutableInt16((short) 0); |
| private AMutableInt8 aInt8 = new AMutableInt8((byte) 0); |
| @SuppressWarnings("rawtypes") |
| private ISerializerDeserializer serde; |
| |
| @SuppressWarnings("unchecked") |
| @Override |
| public void evaluate(IFrameTupleReference tuple, IPointable result) throws HyracksDataException { |
| resultStorage.reset(); |
| for (int i = 0; i < args.length; i++) { |
| if (i == 0) { |
| evalLeft.evaluate(tuple, argPtr); |
| } else { |
| evalRight.evaluate(tuple, argPtr); |
| } |
| byte[] data = argPtr.getByteArray(); |
| int offset = argPtr.getStartOffset(); |
| typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(data[offset]); |
| switch (typeTag) { |
| case TINYINT: |
| metInt8 = true; |
| operands[i] = AInt8SerializerDeserializer.getByte(data, offset + 1); |
| break; |
| case SMALLINT: |
| metInt16 = true; |
| operands[i] = AInt16SerializerDeserializer.getShort(data, offset + 1); |
| break; |
| case INTEGER: |
| metInt32 = true; |
| operands[i] = AInt32SerializerDeserializer.getInt(data, offset + 1); |
| break; |
| case BIGINT: |
| metInt64 = true; |
| operands[i] = AInt64SerializerDeserializer.getLong(data, offset + 1); |
| break; |
| case FLOAT: |
| metFloat = true; |
| operands[i] = AFloatSerializerDeserializer.getFloat(data, offset + 1); |
| break; |
| case DOUBLE: |
| metDouble = true; |
| operands[i] = ADoubleSerializerDeserializer.getDouble(data, offset + 1); |
| break; |
| default: |
| throw new TypeMismatchException(sourceLoc, getIdentifier(), i, data[offset], |
| ATypeTag.SERIALIZED_INT8_TYPE_TAG, ATypeTag.SERIALIZED_INT16_TYPE_TAG, |
| ATypeTag.SERIALIZED_INT32_TYPE_TAG, ATypeTag.SERIALIZED_INT64_TYPE_TAG, |
| ATypeTag.SERIALIZED_FLOAT_TYPE_TAG, ATypeTag.SERIALIZED_DOUBLE_TYPE_TAG); |
| } |
| } |
| |
| if (metDouble) { |
| serde = SerializerDeserializerProvider.INSTANCE |
| .getSerializerDeserializer(BuiltinType.ADOUBLE); |
| aDouble.setValue(operands[0] - operands[1]); |
| serde.serialize(aDouble, out); |
| } else if (metFloat) { |
| serde = SerializerDeserializerProvider.INSTANCE |
| .getSerializerDeserializer(BuiltinType.AFLOAT); |
| aFloat.setValue((float) (operands[0] - operands[1])); |
| serde.serialize(aFloat, out); |
| } else if (metInt64) { |
| serde = SerializerDeserializerProvider.INSTANCE |
| .getSerializerDeserializer(BuiltinType.AINT64); |
| aInt64.setValue((long) (operands[0] - operands[1])); |
| serde.serialize(aInt64, out); |
| } else if (metInt32) { |
| serde = SerializerDeserializerProvider.INSTANCE |
| .getSerializerDeserializer(BuiltinType.AINT32); |
| aInt32.setValue((int) (operands[0] - operands[1])); |
| serde.serialize(aInt32, out); |
| } else if (metInt16) { |
| serde = SerializerDeserializerProvider.INSTANCE |
| .getSerializerDeserializer(BuiltinType.AINT16); |
| aInt16.setValue((short) (operands[0] - operands[1])); |
| serde.serialize(aInt16, out); |
| } else if (metInt8) { |
| serde = SerializerDeserializerProvider.INSTANCE |
| .getSerializerDeserializer(BuiltinType.AINT8); |
| aInt8.setValue((byte) (operands[0] - operands[1])); |
| serde.serialize(aInt8, out); |
| } |
| result.set(resultStorage); |
| } |
| }; |
| } |
| }; |
| } |
| |
| } |
