| /* |
| * 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.core.algebra.operators.physical; |
| |
| import java.util.List; |
| |
| import org.apache.commons.lang3.mutable.Mutable; |
| |
| import edu.uci.ics.hyracks.algebricks.core.algebra.base.IHyracksJobBuilder; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.base.PhysicalOperatorTag; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ILogicalExpressionJobGen; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AssignOperator; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.IOperatorSchema; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.properties.IPhysicalPropertiesVector; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.properties.PhysicalRequirements; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.jobgen.impl.JobGenContext; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.jobgen.impl.JobGenHelper; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.operators.std.AssignRuntimeFactory; |
| import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException; |
| import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor; |
| |
| public class AssignPOperator extends AbstractPhysicalOperator { |
| |
| @Override |
| public PhysicalOperatorTag getOperatorTag() { |
| return PhysicalOperatorTag.ASSIGN; |
| } |
| |
| @Override |
| public void computeDeliveredProperties(ILogicalOperator op, IOptimizationContext context) { |
| ILogicalOperator op2 = op.getInputs().get(0).getValue(); |
| deliveredProperties = op2.getDeliveredPhysicalProperties().clone(); |
| } |
| |
| @Override |
| public PhysicalRequirements getRequiredPropertiesForChildren(ILogicalOperator op, |
| IPhysicalPropertiesVector reqdByParent) { |
| return emptyUnaryRequirements(); |
| } |
| |
| @Override |
| public void contributeRuntimeOperator(IHyracksJobBuilder builder, JobGenContext context, ILogicalOperator op, |
| IOperatorSchema opSchema, IOperatorSchema[] inputSchemas, IOperatorSchema outerPlanSchema) |
| throws AlgebricksException { |
| AssignOperator assign = (AssignOperator) op; |
| List<LogicalVariable> variables = assign.getVariables(); |
| List<Mutable<ILogicalExpression>> expressions = assign.getExpressions(); |
| int[] outColumns = new int[variables.size()]; |
| for (int i = 0; i < outColumns.length; i++) { |
| outColumns[i] = opSchema.findVariable(variables.get(i)); |
| } |
| IEvaluatorFactory[] evalFactories = new IEvaluatorFactory[expressions.size()]; |
| ILogicalExpressionJobGen exprJobGen = context.getExpressionJobGen(); |
| for (int i = 0; i < evalFactories.length; i++) { |
| evalFactories[i] = exprJobGen.createEvaluatorFactory(expressions.get(i).getValue(), |
| context.getTypeEnvironment(op.getInputs().get(0).getValue()), inputSchemas, context); |
| } |
| |
| // TODO push projections into the operator |
| int[] projectionList = JobGenHelper.projectAllVariables(opSchema); |
| |
| AssignRuntimeFactory runtime = new AssignRuntimeFactory(outColumns, evalFactories, projectionList); |
| |
| // contribute one Asterix framewriter |
| RecordDescriptor recDesc = JobGenHelper.mkRecordDescriptor(op, opSchema, context); |
| builder.contributeMicroOperator(assign, runtime, recDesc); |
| // and contribute one edge from its child |
| ILogicalOperator src = assign.getInputs().get(0).getValue(); |
| builder.contributeGraphEdge(src, 0, assign, 0); |
| |
| } |
| |
| @Override |
| public boolean isMicroOperator() { |
| return true; |
| } |
| |
| } |