| /* |
| * 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.iotdb.db.queryengine.plan.planner.plan.node.sink; |
| |
| import org.apache.iotdb.db.queryengine.execution.exchange.sink.DownStreamChannelLocation; |
| import org.apache.iotdb.db.queryengine.plan.planner.plan.node.PlanNode; |
| import org.apache.iotdb.db.queryengine.plan.planner.plan.node.PlanNodeId; |
| import org.apache.iotdb.db.queryengine.plan.planner.plan.node.PlanNodeType; |
| import org.apache.iotdb.db.queryengine.plan.planner.plan.node.PlanVisitor; |
| import org.apache.iotdb.tsfile.utils.ReadWriteIOUtils; |
| |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.stream.Collectors; |
| |
| /** Responsible for creating ShuffleHelperOperator and corresponding SinkHandle */ |
| public class ShuffleSinkNode extends MultiChildrenSinkNode { |
| |
| public ShuffleSinkNode(PlanNodeId id) { |
| super(id); |
| } |
| |
| @Override |
| public PlanNodeType getType() { |
| return PlanNodeType.SHUFFLE_SINK; |
| } |
| |
| public ShuffleSinkNode( |
| PlanNodeId id, List<DownStreamChannelLocation> downStreamChannelLocationList) { |
| super(id, downStreamChannelLocationList); |
| } |
| |
| @Override |
| public PlanNode clone() { |
| return new ShuffleSinkNode(getPlanNodeId(), getDownStreamChannelLocationList()); |
| } |
| |
| @Override |
| public int allowedChildCount() { |
| return CHILD_COUNT_NO_LIMIT; |
| } |
| |
| @Override |
| public List<String> getOutputColumnNames() { |
| return children.stream() |
| .map(PlanNode::getOutputColumnNames) |
| .flatMap(List::stream) |
| .collect(Collectors.toList()); |
| } |
| |
| @Override |
| public <R, C> R accept(PlanVisitor<R, C> visitor, C context) { |
| return visitor.visitShuffleSink(this, context); |
| } |
| |
| @Override |
| protected void serializeAttributes(ByteBuffer byteBuffer) { |
| PlanNodeType.SHUFFLE_SINK.serialize(byteBuffer); |
| ReadWriteIOUtils.write(downStreamChannelLocationList.size(), byteBuffer); |
| for (DownStreamChannelLocation downStreamChannelLocation : downStreamChannelLocationList) { |
| downStreamChannelLocation.serialize(byteBuffer); |
| } |
| } |
| |
| @Override |
| protected void serializeAttributes(DataOutputStream stream) throws IOException { |
| PlanNodeType.SHUFFLE_SINK.serialize(stream); |
| ReadWriteIOUtils.write(downStreamChannelLocationList.size(), stream); |
| for (DownStreamChannelLocation downStreamChannelLocation : downStreamChannelLocationList) { |
| downStreamChannelLocation.serialize(stream); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| return String.format("ShuffleSinkNode-%s", this.getPlanNodeId()); |
| } |
| |
| public static ShuffleSinkNode deserialize(ByteBuffer byteBuffer) { |
| int size = ReadWriteIOUtils.readInt(byteBuffer); |
| List<DownStreamChannelLocation> downStreamChannelLocationList = new ArrayList<>(); |
| for (int i = 0; i < size; i++) { |
| downStreamChannelLocationList.add(DownStreamChannelLocation.deserialize(byteBuffer)); |
| } |
| PlanNodeId planNodeId = PlanNodeId.deserialize(byteBuffer); |
| return new ShuffleSinkNode(planNodeId, downStreamChannelLocationList); |
| } |
| } |