| /* |
| * Copyright 2009-2010 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.hyracks.algebricks.tests.pushruntime; |
| |
| import java.io.IOException; |
| |
| import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException; |
| import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluator; |
| import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory; |
| import edu.uci.ics.hyracks.api.context.IHyracksTaskContext; |
| import edu.uci.ics.hyracks.data.std.api.IPointable; |
| import edu.uci.ics.hyracks.data.std.primitive.VoidPointable; |
| import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage; |
| import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference; |
| import edu.uci.ics.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer; |
| |
| public class IntegerAddEvalFactory implements IScalarEvaluatorFactory { |
| |
| private static final long serialVersionUID = 1L; |
| |
| private IScalarEvaluatorFactory evalLeftFactory; |
| private IScalarEvaluatorFactory evalRightFactory; |
| |
| public IntegerAddEvalFactory(IScalarEvaluatorFactory evalLeftFactory, IScalarEvaluatorFactory evalRightFactory) { |
| this.evalLeftFactory = evalLeftFactory; |
| this.evalRightFactory = evalRightFactory; |
| } |
| |
| @Override |
| public IScalarEvaluator createScalarEvaluator(final IHyracksTaskContext ctx) throws AlgebricksException { |
| return new IScalarEvaluator() { |
| private IPointable p = VoidPointable.FACTORY.createPointable(); |
| private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage(); |
| |
| private IScalarEvaluator evalLeft = evalLeftFactory.createScalarEvaluator(ctx); |
| private IScalarEvaluator evalRight = evalRightFactory.createScalarEvaluator(ctx); |
| |
| @SuppressWarnings("static-access") |
| @Override |
| public void evaluate(IFrameTupleReference tuple, IPointable result) throws AlgebricksException { |
| evalLeft.evaluate(tuple, p); |
| int v1 = IntegerSerializerDeserializer.INSTANCE.getInt(p.getByteArray(), p.getStartOffset()); |
| evalRight.evaluate(tuple, p); |
| int v2 = IntegerSerializerDeserializer.INSTANCE.getInt(p.getByteArray(), p.getStartOffset()); |
| try { |
| argOut.reset(); |
| argOut.getDataOutput().writeInt(v1 + v2); |
| result.set(argOut); |
| } catch (IOException e) { |
| throw new AlgebricksException(e); |
| } |
| } |
| }; |
| } |
| |
| } |