| package edu.uci.ics.hyracks.algebricks.core.algebra.operators.physical; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| 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.utils.Pair; |
| 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.metadata.IDataSource; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider; |
| 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.WriteResultOperator; |
| 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.api.dataflow.IOperatorDescriptor; |
| import edu.uci.ics.hyracks.api.job.JobSpecification; |
| |
| public class WriteResultPOperator extends AbstractPhysicalOperator { |
| |
| private LogicalVariable payload; |
| private List<LogicalVariable> keys; |
| private IDataSource<?> dataSource; |
| |
| public WriteResultPOperator(IDataSource<?> dataSource, LogicalVariable payload, List<LogicalVariable> keys) { |
| this.dataSource = dataSource; |
| this.payload = payload; |
| this.keys = keys; |
| } |
| |
| @Override |
| public String toString() { |
| return getOperatorTag().toString() + " " + payload + " " + keys; |
| } |
| |
| @Override |
| public PhysicalOperatorTag getOperatorTag() { |
| return PhysicalOperatorTag.WRITE_RESULT; |
| } |
| |
| @Override |
| public boolean isMicroOperator() { |
| return true; |
| } |
| |
| @Override |
| public void computeDeliveredProperties(ILogicalOperator op, IOptimizationContext context) { |
| AbstractLogicalOperator op2 = (AbstractLogicalOperator) op.getInputs().get(0).getValue(); |
| deliveredProperties = (StructuralPropertiesVector) op2.getDeliveredPhysicalProperties().clone(); |
| } |
| |
| @Override |
| public PhysicalRequirements getRequiredPropertiesForChildren(ILogicalOperator op, |
| IPhysicalPropertiesVector reqdByParent) { |
| List<LogicalVariable> scanVariables = new ArrayList<LogicalVariable>(); |
| scanVariables.addAll(keys); |
| scanVariables.add(new LogicalVariable(-1)); |
| IPhysicalPropertiesVector r = dataSource.getPropertiesProvider().computePropertiesVector(scanVariables); |
| IPhysicalPropertiesVector[] requirements = new IPhysicalPropertiesVector[1]; |
| requirements[0] = r; |
| return new PhysicalRequirements(requirements, IPartitioningRequirementsCoordinator.NO_COORDINATION); |
| } |
| |
| @SuppressWarnings({ "rawtypes", "unchecked" }) |
| @Override |
| public void contributeRuntimeOperator(IHyracksJobBuilder builder, JobGenContext context, ILogicalOperator op, |
| IOperatorSchema propagatedSchema, IOperatorSchema[] inputSchemas, IOperatorSchema outerPlanSchema) |
| throws AlgebricksException { |
| WriteResultOperator writeResultOp = (WriteResultOperator) op; |
| IMetadataProvider mp = context.getMetadataProvider(); |
| |
| JobSpecification spec = builder.getJobSpec(); |
| Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> runtimeAndConstraints = mp.getWriteResultRuntime( |
| dataSource, propagatedSchema, keys, payload, context, spec); |
| |
| builder.contributeHyracksOperator(writeResultOp, runtimeAndConstraints.first); |
| builder.contributeAlgebricksPartitionConstraint(runtimeAndConstraints.first, runtimeAndConstraints.second); |
| ILogicalOperator src = writeResultOp.getInputs().get(0).getValue(); |
| builder.contributeGraphEdge(src, 0, writeResultOp, 0); |
| } |
| } |