| /* |
| * 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.ArrayList; |
| import java.util.List; |
| |
| import org.apache.commons.lang3.mutable.Mutable; |
| |
| 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.base.IHyracksJobBuilder; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlan; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.base.PhysicalOperatorTag; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.IOperatorSchema; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.SubplanOperator; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.properties.ILocalStructuralProperty; |
| 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.properties.StructuralPropertiesVector; |
| import edu.uci.ics.hyracks.algebricks.core.jobgen.impl.JobGenContext; |
| import edu.uci.ics.hyracks.algebricks.core.jobgen.impl.JobGenHelper; |
| import edu.uci.ics.hyracks.algebricks.runtime.base.AlgebricksPipeline; |
| import edu.uci.ics.hyracks.algebricks.runtime.operators.meta.SubplanRuntimeFactory; |
| import edu.uci.ics.hyracks.api.dataflow.value.INullWriterFactory; |
| import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor; |
| |
| public class SubplanPOperator extends AbstractPhysicalOperator { |
| |
| @Override |
| public PhysicalOperatorTag getOperatorTag() { |
| return PhysicalOperatorTag.SUBPLAN; |
| } |
| |
| @Override |
| public boolean isMicroOperator() { |
| return true; |
| } |
| |
| @Override |
| public void computeDeliveredProperties(ILogicalOperator op, IOptimizationContext context) { |
| AbstractLogicalOperator op2 = (AbstractLogicalOperator) op.getInputs().get(0).getValue(); |
| IPhysicalPropertiesVector childsProperties = op2.getPhysicalOperator().getDeliveredProperties(); |
| List<ILocalStructuralProperty> propsLocal = new ArrayList<ILocalStructuralProperty>(); |
| if (childsProperties.getLocalProperties() != null) { |
| propsLocal.addAll(childsProperties.getLocalProperties()); |
| } |
| // ... get local properties for newly created variables... |
| SubplanOperator subplan = (SubplanOperator) op; |
| for (ILogicalPlan plan : subplan.getNestedPlans()) { |
| for (Mutable<ILogicalOperator> r : plan.getRoots()) { |
| AbstractLogicalOperator rOp = (AbstractLogicalOperator) r.getValue(); |
| propsLocal.addAll(rOp.getPhysicalOperator().getDeliveredProperties().getLocalProperties()); |
| } |
| } |
| |
| deliveredProperties = new StructuralPropertiesVector(childsProperties.getPartitioningProperty(), propsLocal); |
| } |
| |
| @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 { |
| SubplanOperator subplan = (SubplanOperator) op; |
| if (subplan.getNestedPlans().size() != 1) { |
| throw new NotImplementedException("Subplan currently works only for one nested plan with one root."); |
| } |
| AlgebricksPipeline[] subplans = compileSubplans(inputSchemas[0], subplan, opSchema, context); |
| assert (subplans.length == 1); |
| AlgebricksPipeline np = subplans[0]; |
| RecordDescriptor inputRecordDesc = JobGenHelper.mkRecordDescriptor(context.getTypeEnvironment(op.getInputs().get(0).getValue()), |
| inputSchemas[0], context); |
| INullWriterFactory[] nullWriterFactories = new INullWriterFactory[np.getOutputWidth()]; |
| for (int i = 0; i < nullWriterFactories.length; i++) { |
| nullWriterFactories[i] = context.getNullWriterFactory(); |
| } |
| SubplanRuntimeFactory runtime = new SubplanRuntimeFactory(np, nullWriterFactories, inputRecordDesc, null); |
| |
| RecordDescriptor recDesc = JobGenHelper.mkRecordDescriptor(context.getTypeEnvironment(op), opSchema, context); |
| builder.contributeMicroOperator(subplan, runtime, recDesc); |
| |
| ILogicalOperator src = op.getInputs().get(0).getValue(); |
| builder.contributeGraphEdge(src, 0, op, 0); |
| } |
| |
| } |