| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 at |
| * |
| * 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 org.apache.drill.exec.planner.physical; |
| |
| import org.apache.calcite.plan.RelOptCluster; |
| import org.apache.calcite.plan.RelTraitSet; |
| import org.apache.calcite.rel.RelNode; |
| import org.apache.calcite.rel.SingleRel; |
| import org.apache.drill.exec.physical.base.PhysicalOperator; |
| import org.apache.drill.exec.physical.config.MetadataStreamAggPOP; |
| import org.apache.drill.exec.planner.common.DrillRelNode; |
| import org.apache.drill.exec.planner.physical.AggPrelBase.OperatorPhase; |
| import org.apache.drill.exec.planner.physical.visitor.PrelVisitor; |
| import org.apache.drill.exec.metastore.analyze.MetadataAggregateContext; |
| import org.apache.drill.exec.record.BatchSchema; |
| import com.google.common.base.Preconditions; |
| |
| import java.io.IOException; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| public class MetadataStreamAggPrel extends SingleRel implements DrillRelNode, Prel { |
| private final MetadataAggregateContext context; |
| private final OperatorPhase phase; |
| |
| public MetadataStreamAggPrel(RelOptCluster cluster, RelTraitSet traits, RelNode input, |
| MetadataAggregateContext context, OperatorPhase phase) { |
| super(cluster, traits, input); |
| this.context = context; |
| this.phase = phase; |
| } |
| |
| @Override |
| public PhysicalOperator getPhysicalOperator(PhysicalPlanCreator creator) throws IOException { |
| Prel child = (Prel) this.getInput(); |
| MetadataStreamAggPOP physicalOperator = new MetadataStreamAggPOP(child.getPhysicalOperator(creator), context, phase); |
| return creator.addMetadata(this, physicalOperator); |
| } |
| |
| @Override |
| public <T, X, E extends Throwable> T accept(PrelVisitor<T, X, E> logicalVisitor, X value) throws E { |
| return logicalVisitor.visitPrel(this, value); |
| } |
| |
| @Override |
| public BatchSchema.SelectionVectorMode[] getSupportedEncodings() { |
| return BatchSchema.SelectionVectorMode.DEFAULT; |
| } |
| |
| @Override |
| public BatchSchema.SelectionVectorMode getEncoding() { |
| return BatchSchema.SelectionVectorMode.NONE; |
| } |
| |
| @Override |
| public boolean needsFinalColumnReordering() { |
| return false; |
| } |
| |
| @Override |
| public Iterator<Prel> iterator() { |
| return PrelUtil.iter(getInput()); |
| } |
| |
| @Override |
| public RelNode copy(RelTraitSet traitSet, List<RelNode> inputs) { |
| Preconditions.checkState(inputs.size() == 1); |
| return new MetadataStreamAggPrel(getCluster(), traitSet, inputs.iterator().next(), context, phase); |
| } |
| |
| public OperatorPhase getPhase() { |
| return phase; |
| } |
| } |