| /* |
| * 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.metedata.read; |
| |
| import org.apache.iotdb.commons.path.PartialPath; |
| import org.apache.iotdb.commons.path.PathDeserializeUtil; |
| import org.apache.iotdb.commons.path.PathPatternTree; |
| import org.apache.iotdb.db.queryengine.common.header.ColumnHeader; |
| import org.apache.iotdb.db.queryengine.common.header.ColumnHeaderConstant; |
| 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.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.Objects; |
| import java.util.stream.Collectors; |
| |
| public class PathsUsingTemplateScanNode extends SchemaQueryScanNode { |
| |
| private List<PartialPath> pathPatternList; |
| |
| private final int templateId; |
| |
| public PathsUsingTemplateScanNode( |
| PlanNodeId id, List<PartialPath> pathPatternList, int templateId, PathPatternTree scope) { |
| super(id); |
| setScope(scope); |
| this.pathPatternList = pathPatternList; |
| this.templateId = templateId; |
| } |
| |
| @Override |
| public List<PartialPath> getPathPatternList() { |
| return pathPatternList; |
| } |
| |
| @Override |
| public void setPathPatternList(List<PartialPath> pathPatternList) { |
| this.pathPatternList = pathPatternList; |
| } |
| |
| public int getTemplateId() { |
| return templateId; |
| } |
| |
| @Override |
| public PlanNodeType getType() { |
| return PlanNodeType.PATHS_USING_TEMPLATE_SCAN; |
| } |
| |
| @Override |
| public PlanNode clone() { |
| return new PathsUsingTemplateScanNode(getPlanNodeId(), pathPatternList, templateId, scope); |
| } |
| |
| @Override |
| public List<String> getOutputColumnNames() { |
| return ColumnHeaderConstant.showPathsUsingTemplateHeaders.stream() |
| .map(ColumnHeader::getColumnName) |
| .collect(Collectors.toList()); |
| } |
| |
| @Override |
| protected void serializeAttributes(ByteBuffer byteBuffer) { |
| PlanNodeType.PATHS_USING_TEMPLATE_SCAN.serialize(byteBuffer); |
| ReadWriteIOUtils.write(pathPatternList.size(), byteBuffer); |
| for (PartialPath pathPattern : pathPatternList) { |
| pathPattern.serialize(byteBuffer); |
| } |
| scope.serialize(byteBuffer); |
| ReadWriteIOUtils.write(templateId, byteBuffer); |
| } |
| |
| @Override |
| protected void serializeAttributes(DataOutputStream stream) throws IOException { |
| PlanNodeType.PATHS_USING_TEMPLATE_SCAN.serialize(stream); |
| ReadWriteIOUtils.write(pathPatternList.size(), stream); |
| for (PartialPath pathPattern : pathPatternList) { |
| pathPattern.serialize(stream); |
| } |
| scope.serialize(stream); |
| ReadWriteIOUtils.write(templateId, stream); |
| } |
| |
| public static PathsUsingTemplateScanNode deserialize(ByteBuffer buffer) { |
| int size = ReadWriteIOUtils.readInt(buffer); |
| List<PartialPath> pathPatternList = new ArrayList<>(size); |
| for (int i = 0; i < size; i++) { |
| pathPatternList.add((PartialPath) PathDeserializeUtil.deserialize(buffer)); |
| } |
| PathPatternTree scope = PathPatternTree.deserialize(buffer); |
| int templateId = ReadWriteIOUtils.readInt(buffer); |
| PlanNodeId planNodeId = PlanNodeId.deserialize(buffer); |
| return new PathsUsingTemplateScanNode(planNodeId, pathPatternList, templateId, scope); |
| } |
| |
| @Override |
| public String toString() { |
| return String.format( |
| "PathsUsingTemplateScanNode-%s:[DataRegion: %s]", |
| this.getPlanNodeId(), this.getRegionReplicaSet()); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) return true; |
| if (o == null || getClass() != o.getClass()) return false; |
| if (!super.equals(o)) return false; |
| PathsUsingTemplateScanNode that = (PathsUsingTemplateScanNode) o; |
| return templateId == that.templateId && Objects.equals(pathPatternList, that.pathPatternList); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(super.hashCode(), pathPatternList, templateId); |
| } |
| } |