| /* |
| * 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 org.apache.commons.lang3.mutable.Mutable; |
| |
| import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint; |
| import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException; |
| import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException; |
| import edu.uci.ics.hyracks.algebricks.common.utils.Pair; |
| 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.LogicalExpressionTag; |
| 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.VariableReferenceExpression; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSink; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.DistributeResultOperator; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.IOperatorSchema; |
| 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.algebricks.data.IPrinterFactory; |
| import edu.uci.ics.hyracks.api.dataflow.IOperatorDescriptor; |
| import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor; |
| import edu.uci.ics.hyracks.api.job.JobSpecification; |
| |
| public class DistributeResultPOperator extends AbstractPhysicalOperator { |
| |
| @Override |
| public PhysicalOperatorTag getOperatorTag() { |
| return PhysicalOperatorTag.DISTRIBUTE_RESULT; |
| } |
| |
| @Override |
| public boolean isMicroOperator() { |
| return false; |
| } |
| |
| @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) { |
| DistributeResultOperator write = (DistributeResultOperator) op; |
| IDataSink sink = write.getDataSink(); |
| IPartitioningProperty pp = sink.getPartitioningProperty(); |
| StructuralPropertiesVector[] r = new StructuralPropertiesVector[] { new StructuralPropertiesVector(pp, null) }; |
| return new PhysicalRequirements(r, IPartitioningRequirementsCoordinator.NO_COORDINATION); |
| } |
| |
| @SuppressWarnings({ "rawtypes", "unchecked" }) |
| @Override |
| public void contributeRuntimeOperator(IHyracksJobBuilder builder, JobGenContext context, ILogicalOperator op, |
| IOperatorSchema propagatedSchema, IOperatorSchema[] inputSchemas, IOperatorSchema outerPlanSchema) |
| throws AlgebricksException { |
| DistributeResultOperator resultOp = (DistributeResultOperator) op; |
| IMetadataProvider mp = context.getMetadataProvider(); |
| |
| JobSpecification spec = builder.getJobSpec(); |
| |
| int[] columns = new int[resultOp.getExpressions().size()]; |
| int i = 0; |
| for (Mutable<ILogicalExpression> exprRef : resultOp.getExpressions()) { |
| ILogicalExpression expr = exprRef.getValue(); |
| if (expr.getExpressionTag() != LogicalExpressionTag.VARIABLE) { |
| throw new NotImplementedException("Only writing variable expressions is supported."); |
| } |
| VariableReferenceExpression varRef = (VariableReferenceExpression) expr; |
| LogicalVariable v = varRef.getVariableReference(); |
| columns[i++] = inputSchemas[0].findVariable(v); |
| } |
| RecordDescriptor inputDesc = JobGenHelper.mkRecordDescriptor( |
| context.getTypeEnvironment(op.getInputs().get(0).getValue()), inputSchemas[0], context); |
| |
| IPrinterFactory[] pf = JobGenHelper.mkPrinterFactories(inputSchemas[0], context.getTypeEnvironment(op), |
| context, columns); |
| |
| Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> runtimeAndConstraints = mp.getResultHandleRuntime( |
| resultOp.getDataSink(), columns, pf, inputDesc, true, spec); |
| |
| builder.contributeHyracksOperator(resultOp, runtimeAndConstraints.first); |
| ILogicalOperator src = resultOp.getInputs().get(0).getValue(); |
| builder.contributeGraphEdge(src, 0, resultOp, 0); |
| } |
| } |