| /* |
| * Copyright 2009-2012 by The Regents of the University of California |
| * Licensed 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 from |
| * |
| * 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 edu.uci.ics.asterix.runtime.evaluators.functions; |
| |
| import java.io.DataOutput; |
| |
| import edu.uci.ics.asterix.common.functions.FunctionConstants; |
| import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer; |
| import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer; |
| import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer; |
| import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer; |
| import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer; |
| import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt8SerializerDeserializer; |
| import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider; |
| import edu.uci.ics.asterix.om.base.AMutableDouble; |
| import edu.uci.ics.asterix.om.base.AMutableFloat; |
| import edu.uci.ics.asterix.om.base.AMutableInt16; |
| import edu.uci.ics.asterix.om.base.AMutableInt32; |
| import edu.uci.ics.asterix.om.base.AMutableInt64; |
| import edu.uci.ics.asterix.om.base.AMutableInt8; |
| import edu.uci.ics.asterix.om.base.ANull; |
| import edu.uci.ics.asterix.om.functions.IFunctionDescriptor; |
| import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory; |
| import edu.uci.ics.asterix.om.types.ATypeTag; |
| import edu.uci.ics.asterix.om.types.BuiltinType; |
| import edu.uci.ics.asterix.om.types.EnumDeserializer; |
| import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor; |
| import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException; |
| import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier; |
| import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator; |
| import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory; |
| import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer; |
| import edu.uci.ics.hyracks.api.exceptions.HyracksDataException; |
| import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage; |
| import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider; |
| import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference; |
| |
| /** |
| * @author kisskys |
| */ |
| public class NumericModuloDescriptor extends AbstractScalarFunctionDynamicDescriptor { |
| |
| private static final long serialVersionUID = 1L; |
| public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "numeric-mod", 2); |
| public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() { |
| public IFunctionDescriptor createFunctionDescriptor() { |
| return new NumericModuloDescriptor(); |
| } |
| }; |
| |
| @Override |
| public FunctionIdentifier getIdentifier() { |
| return FID; |
| } |
| |
| @Override |
| public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException { |
| return new ICopyEvaluatorFactory() { |
| private static final long serialVersionUID = 1L; |
| |
| @Override |
| public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException { |
| |
| return new ICopyEvaluator() { |
| private DataOutput out = output.getDataOutput(); |
| // one temp. buffer re-used by both children |
| private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage(); |
| private ICopyEvaluator evalLeft = args[0].createEvaluator(argOut); |
| private ICopyEvaluator evalRight = args[1].createEvaluator(argOut); |
| 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) throws AlgebricksException { |
| |
| try { |
| for (int i = 0; i < args.length; i++) { |
| argOut.reset(); |
| if (i == 0) |
| evalLeft.evaluate(tuple); |
| else |
| evalRight.evaluate(tuple); |
| typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getByteArray()[0]); |
| switch (typeTag) { |
| case INT8: { |
| metInt8 = true; |
| operands[i] = AInt8SerializerDeserializer.getByte(argOut.getByteArray(), 1); |
| break; |
| } |
| case INT16: { |
| metInt16 = true; |
| operands[i] = AInt16SerializerDeserializer.getShort(argOut.getByteArray(), 1); |
| break; |
| } |
| case INT32: { |
| metInt32 = true; |
| operands[i] = AInt32SerializerDeserializer.getInt(argOut.getByteArray(), 1); |
| break; |
| } |
| case INT64: { |
| metInt64 = true; |
| operands[i] = AInt64SerializerDeserializer.getLong(argOut.getByteArray(), 1); |
| break; |
| } |
| case FLOAT: { |
| metFloat = true; |
| operands[i] = AFloatSerializerDeserializer.getFloat(argOut.getByteArray(), 1); |
| break; |
| } |
| case DOUBLE: { |
| metDouble = true; |
| operands[i] = ADoubleSerializerDeserializer.getDouble(argOut.getByteArray(), 1); |
| break; |
| } |
| case NULL: { |
| serde = AqlSerializerDeserializerProvider.INSTANCE |
| .getSerializerDeserializer(BuiltinType.ANULL); |
| serde.serialize(ANull.NULL, out); |
| return; |
| } |
| default: { |
| throw new NotImplementedException(i == 0 ? "Left" : "Right" |
| + " Operand of Modulo can not be " |
| + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut |
| .getByteArray()[0])); |
| } |
| } |
| } |
| |
| if (metDouble) { |
| serde = AqlSerializerDeserializerProvider.INSTANCE |
| .getSerializerDeserializer(BuiltinType.ADOUBLE); |
| aDouble.setValue(operands[0] % operands[1]); |
| serde.serialize(aDouble, out); |
| } else if (metFloat) { |
| serde = AqlSerializerDeserializerProvider.INSTANCE |
| .getSerializerDeserializer(BuiltinType.AFLOAT); |
| aFloat.setValue((float) (operands[0] % operands[1])); |
| serde.serialize(aFloat, out); |
| } else if (metInt64) { |
| serde = AqlSerializerDeserializerProvider.INSTANCE |
| .getSerializerDeserializer(BuiltinType.AINT64); |
| aInt64.setValue((long) (operands[0] % operands[1])); |
| serde.serialize(aInt64, out); |
| } else if (metInt32) { |
| serde = AqlSerializerDeserializerProvider.INSTANCE |
| .getSerializerDeserializer(BuiltinType.AINT32); |
| aInt32.setValue((int) (operands[0] % operands[1])); |
| serde.serialize(aInt32, out); |
| } else if (metInt16) { |
| serde = AqlSerializerDeserializerProvider.INSTANCE |
| .getSerializerDeserializer(BuiltinType.AINT16); |
| aInt16.setValue((short) (operands[0] % operands[1])); |
| serde.serialize(aInt16, out); |
| } else if (metInt8) { |
| serde = AqlSerializerDeserializerProvider.INSTANCE |
| .getSerializerDeserializer(BuiltinType.AINT8); |
| aInt8.setValue((byte) (operands[0] % operands[1])); |
| serde.serialize(aInt8, out); |
| } |
| |
| } catch (HyracksDataException hde) { |
| throw new AlgebricksException(hde); |
| } |
| } |
| }; |
| } |
| }; |
| } |
| |
| } |