| /* |
| * 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.qp.physical.crud; |
| |
| import org.apache.iotdb.db.exception.metadata.IllegalPathException; |
| import org.apache.iotdb.db.exception.query.QueryProcessException; |
| import org.apache.iotdb.db.metadata.PartialPath; |
| import org.apache.iotdb.db.qp.logical.Operator; |
| import org.apache.iotdb.db.query.aggregation.AggregateResult; |
| import org.apache.iotdb.db.query.factory.AggregateResultFactory; |
| import org.apache.iotdb.db.utils.FilePathUtils; |
| import org.apache.iotdb.tsfile.file.metadata.enums.TSDataType; |
| |
| import java.util.ArrayList; |
| import java.util.LinkedHashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| public class AggregationPlan extends RawDataQueryPlan { |
| |
| // e.g., for select count(s1), count(s1), count(s2), count(s2), sum (s1) |
| // aggregations are count, count, count, count, sum |
| // deduplicatedAggregations are count, count, sum |
| |
| private List<String> aggregations = new ArrayList<>(); |
| private List<String> deduplicatedAggregations = new ArrayList<>(); |
| |
| private int level = -1; |
| // group by level aggregation result path |
| private final Map<String, AggregateResult> levelAggPaths = new LinkedHashMap<>(); |
| |
| public AggregationPlan() { |
| super(); |
| setOperatorType(Operator.OperatorType.AGGREGATION); |
| } |
| |
| @Override |
| public List<String> getAggregations() { |
| return aggregations; |
| } |
| |
| public void setAggregations(List<String> aggregations) { |
| this.aggregations = aggregations; |
| } |
| |
| public List<String> getDeduplicatedAggregations() { |
| return deduplicatedAggregations; |
| } |
| |
| public void addDeduplicatedAggregations(String aggregations) { |
| this.deduplicatedAggregations.add(aggregations); |
| } |
| |
| public void setDeduplicatedAggregations(List<String> deduplicatedAggregations) { |
| this.deduplicatedAggregations = deduplicatedAggregations; |
| } |
| |
| public int getLevel() { |
| return level; |
| } |
| |
| public void setLevel(int level) { |
| this.level = level; |
| } |
| |
| public Map<String, AggregateResult> getAggPathByLevel() throws QueryProcessException { |
| if (!levelAggPaths.isEmpty()) { |
| return levelAggPaths; |
| } |
| List<PartialPath> seriesPaths = getPaths(); |
| List<TSDataType> dataTypes = getDataTypes(); |
| try { |
| for (int i = 0; i < seriesPaths.size(); i++) { |
| String transformedPath = |
| FilePathUtils.generatePartialPathByLevel(seriesPaths.get(i).getFullPath(), getLevel()); |
| String key = getAggregations().get(i) + "(" + transformedPath + ")"; |
| if (!levelAggPaths.containsKey(key)) { |
| AggregateResult aggRet = |
| AggregateResultFactory.getAggrResultByName( |
| getAggregations().get(i), dataTypes.get(i)); |
| levelAggPaths.put(key, aggRet); |
| } |
| } |
| } catch (IllegalPathException e) { |
| throw new QueryProcessException(e.getMessage()); |
| } |
| return levelAggPaths; |
| } |
| |
| @Override |
| public void setAlignByTime(boolean align) throws QueryProcessException { |
| if (!align) { |
| throw new QueryProcessException( |
| getOperatorType().name() + " doesn't support disable align clause."); |
| } |
| } |
| |
| @Override |
| public String getColumnForReaderFromPath(PartialPath path, int pathIndex) { |
| String columnForReader = super.getColumnForReaderFromPath(path, pathIndex); |
| if (!path.isTsAliasExists()) { |
| columnForReader = this.getAggregations().get(pathIndex) + "(" + columnForReader + ")"; |
| } |
| return columnForReader; |
| } |
| |
| @Override |
| public String getColumnForDisplay(String columnForReader, int pathIndex) |
| throws IllegalPathException { |
| String columnForDisplay = columnForReader; |
| if (level >= 0) { |
| PartialPath path = paths.get(pathIndex); |
| String aggregatePath = |
| path.isMeasurementAliasExists() |
| ? FilePathUtils.generatePartialPathByLevel(path.getFullPathWithAlias(), level) |
| : FilePathUtils.generatePartialPathByLevel(path.toString(), level); |
| columnForDisplay = aggregations.get(pathIndex) + "(" + aggregatePath + ")"; |
| } |
| return columnForDisplay; |
| } |
| |
| @Override |
| public boolean isRawQuery() { |
| return false; |
| } |
| } |