| /* |
| * 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 edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException; |
| import edu.uci.ics.hyracks.algebricks.common.utils.Triple; |
| 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.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.operators.logical.AbstractLogicalOperator; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.IOperatorSchema; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.UnionAllOperator; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.properties.ILocalStructuralProperty; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.properties.IPartitioningProperty; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.properties.IPartitioningRequirementsCoordinator; |
| 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.api.dataflow.value.RecordDescriptor; |
| import edu.uci.ics.hyracks.api.job.IOperatorDescriptorRegistry; |
| import edu.uci.ics.hyracks.dataflow.std.union.UnionAllOperatorDescriptor; |
| |
| public class UnionAllPOperator extends AbstractPhysicalOperator { |
| |
| @Override |
| public PhysicalOperatorTag getOperatorTag() { |
| return PhysicalOperatorTag.UNION_ALL; |
| } |
| |
| @Override |
| public boolean isMicroOperator() { |
| return false; |
| } |
| |
| @Override |
| public void computeDeliveredProperties(ILogicalOperator op, IOptimizationContext context) { |
| AbstractLogicalOperator op2 = (AbstractLogicalOperator) op.getInputs().get(0).getValue(); |
| IPartitioningProperty pp = op2.getDeliveredPhysicalProperties().getPartitioningProperty(); |
| this.deliveredProperties = new StructuralPropertiesVector(pp, new ArrayList<ILocalStructuralProperty>(0)); |
| |
| } |
| |
| @Override |
| public PhysicalRequirements getRequiredPropertiesForChildren(ILogicalOperator op, |
| IPhysicalPropertiesVector reqdByParent) { |
| StructuralPropertiesVector pv0 = StructuralPropertiesVector.EMPTY_PROPERTIES_VECTOR; |
| StructuralPropertiesVector pv1 = StructuralPropertiesVector.EMPTY_PROPERTIES_VECTOR; |
| return new PhysicalRequirements(new StructuralPropertiesVector[] { pv0, pv1 }, |
| IPartitioningRequirementsCoordinator.NO_COORDINATION); |
| } |
| |
| @Override |
| public void contributeRuntimeOperator(IHyracksJobBuilder builder, JobGenContext context, ILogicalOperator op, |
| IOperatorSchema opSchema, IOperatorSchema[] inputSchemas, IOperatorSchema outerPlanSchema) |
| throws AlgebricksException { |
| UnionAllOperator unionOp = (UnionAllOperator) op; |
| int n = unionOp.getVariableMappings().size(); |
| int[] leftColumns = new int[n]; |
| int[] rightColumns = new int[n]; |
| int i = 0; |
| for (Triple<LogicalVariable, LogicalVariable, LogicalVariable> t : unionOp.getVariableMappings()) { |
| int posLeft = inputSchemas[0].findVariable(t.first); |
| leftColumns[i] = posLeft; |
| int posRight = inputSchemas[1].findVariable(t.second); |
| rightColumns[i] = posRight; |
| ++i; |
| } |
| |
| IOperatorDescriptorRegistry spec = builder.getJobSpec(); |
| RecordDescriptor recordDescriptor = JobGenHelper.mkRecordDescriptor(context.getTypeEnvironment(op), opSchema, context); |
| |
| // at algebricks level, union all only accepts two inputs, although at |
| // hyracks |
| // level, there is no restrictions |
| UnionAllOperatorDescriptor opDesc = new UnionAllOperatorDescriptor(spec, 2, recordDescriptor); |
| contributeOpDesc(builder, (AbstractLogicalOperator) op, opDesc); |
| ILogicalOperator src1 = op.getInputs().get(0).getValue(); |
| builder.contributeGraphEdge(src1, 0, op, 0); |
| ILogicalOperator src2 = op.getInputs().get(1).getValue(); |
| builder.contributeGraphEdge(src2, 0, op, 1); |
| } |
| |
| } |