| /* |
| * 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.parameter; |
| |
| import org.apache.iotdb.commons.path.PartialPath; |
| import org.apache.iotdb.commons.path.PathDeserializeUtil; |
| import org.apache.iotdb.db.exception.sql.SemanticException; |
| import org.apache.iotdb.db.queryengine.common.schematree.ISchemaTree; |
| import org.apache.iotdb.db.queryengine.plan.analyze.SelectIntoUtils; |
| import org.apache.iotdb.tsfile.file.metadata.enums.TSDataType; |
| import org.apache.iotdb.tsfile.utils.Pair; |
| import org.apache.iotdb.tsfile.utils.ReadWriteIOUtils; |
| |
| import org.apache.commons.lang3.StringUtils; |
| |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Objects; |
| import java.util.stream.Collectors; |
| |
| import static org.apache.iotdb.db.queryengine.plan.statement.component.IntoComponent.DEVICE_ALIGNMENT_INCONSISTENT_ERROR_MSG; |
| import static org.apache.iotdb.db.queryengine.plan.statement.component.IntoComponent.DUPLICATE_TARGET_PATH_ERROR_MSG; |
| |
| public class IntoPathDescriptor { |
| |
| // List<(sourceColumn, targetPath)> |
| private List<Pair<String, PartialPath>> sourceTargetPathPairList; |
| |
| // if the sourceColumn is transformed from a viewPath, then store the viewPath in |
| // sourceColumnToViewList |
| private final List<String> sourceColumnToViewList; |
| |
| // targetDevice -> isAlignedDevice |
| private final Map<String, Boolean> targetDeviceToAlignedMap; |
| |
| // sourceColumn -> dataType (not serialize & deserialize) |
| private Map<String, TSDataType> sourceToDataTypeMap; |
| |
| public IntoPathDescriptor() { |
| this.sourceTargetPathPairList = new ArrayList<>(); |
| this.sourceColumnToViewList = new ArrayList<>(); |
| this.targetDeviceToAlignedMap = new HashMap<>(); |
| this.sourceToDataTypeMap = new HashMap<>(); |
| } |
| |
| public IntoPathDescriptor( |
| List<Pair<String, PartialPath>> sourceTargetPathPairList, |
| List<String> sourceColumnToViewList, |
| Map<String, Boolean> targetDeviceToAlignedMap) { |
| this.sourceTargetPathPairList = sourceTargetPathPairList; |
| this.sourceColumnToViewList = sourceColumnToViewList; |
| this.targetDeviceToAlignedMap = targetDeviceToAlignedMap; |
| } |
| |
| public void specifyTargetPath( |
| String sourceColumn, String sourceViewPath, PartialPath targetPath) { |
| sourceTargetPathPairList.add(new Pair<>(sourceColumn, targetPath)); |
| sourceColumnToViewList.add(sourceViewPath == null ? "" : sourceViewPath); |
| } |
| |
| public void specifyDeviceAlignment(String targetDevice, boolean isAligned) { |
| if (targetDeviceToAlignedMap.containsKey(targetDevice) |
| && targetDeviceToAlignedMap.get(targetDevice) != isAligned) { |
| throw new SemanticException(DEVICE_ALIGNMENT_INCONSISTENT_ERROR_MSG); |
| } |
| targetDeviceToAlignedMap.put(targetDevice, isAligned); |
| } |
| |
| public void recordSourceColumnDataType(String sourceColumn, TSDataType dataType) { |
| sourceToDataTypeMap.put(sourceColumn, dataType); |
| } |
| |
| public void validate() { |
| List<PartialPath> targetPaths = |
| sourceTargetPathPairList.stream().map(Pair::getRight).collect(Collectors.toList()); |
| if (targetPaths.size() > new HashSet<>(targetPaths).size()) { |
| throw new SemanticException(DUPLICATE_TARGET_PATH_ERROR_MSG); |
| } |
| } |
| |
| public void bindType(ISchemaTree targetSchemaTree) { |
| this.sourceTargetPathPairList = |
| SelectIntoUtils.bindTypeForSourceTargetPathPairList( |
| sourceTargetPathPairList, sourceToDataTypeMap, targetSchemaTree); |
| } |
| |
| public List<Pair<String, PartialPath>> getSourceTargetPathPairList() { |
| return sourceTargetPathPairList; |
| } |
| |
| public List<String> getSourceColumnToViewList() { |
| return sourceColumnToViewList; |
| } |
| |
| public Map<String, Boolean> getTargetDeviceToAlignedMap() { |
| return targetDeviceToAlignedMap; |
| } |
| |
| public Map<PartialPath, Map<String, String>> getTargetPathToSourceMap() { |
| // targetDevice -> { targetMeasurement -> sourceColumn } |
| Map<PartialPath, Map<String, String>> targetPathToSourceMap = new HashMap<>(); |
| |
| for (Pair<String, PartialPath> sourceTargetPathPair : sourceTargetPathPairList) { |
| String sourceColumn = sourceTargetPathPair.left; |
| PartialPath targetDevice = sourceTargetPathPair.right.getDevicePath(); |
| String targetMeasurement = sourceTargetPathPair.right.getMeasurement(); |
| |
| targetPathToSourceMap |
| .computeIfAbsent(targetDevice, key -> new HashMap<>()) |
| .put(targetMeasurement, sourceColumn); |
| } |
| return targetPathToSourceMap; |
| } |
| |
| public Map<PartialPath, Map<String, TSDataType>> getTargetPathToDataTypeMap() { |
| return SelectIntoUtils.convertSourceTargetPathPairListToTargetPathDataTypeMap( |
| sourceTargetPathPairList); |
| } |
| |
| public void serialize(ByteBuffer byteBuffer) { |
| ReadWriteIOUtils.write(sourceTargetPathPairList.size(), byteBuffer); |
| for (Pair<String, PartialPath> sourceTargetPathPair : sourceTargetPathPairList) { |
| ReadWriteIOUtils.write(sourceTargetPathPair.left, byteBuffer); |
| sourceTargetPathPair.right.serialize(byteBuffer); |
| } |
| |
| ReadWriteIOUtils.write(targetDeviceToAlignedMap.size(), byteBuffer); |
| for (Map.Entry<String, Boolean> entry : targetDeviceToAlignedMap.entrySet()) { |
| ReadWriteIOUtils.write(entry.getKey(), byteBuffer); |
| ReadWriteIOUtils.write(entry.getValue(), byteBuffer); |
| } |
| } |
| |
| public void serialize(DataOutputStream stream) throws IOException { |
| ReadWriteIOUtils.write(sourceTargetPathPairList.size(), stream); |
| for (Pair<String, PartialPath> sourceTargetPathPair : sourceTargetPathPairList) { |
| ReadWriteIOUtils.write(sourceTargetPathPair.left, stream); |
| sourceTargetPathPair.right.serialize(stream); |
| } |
| |
| for (String sourceColumnToView : sourceColumnToViewList) { |
| ReadWriteIOUtils.write(sourceColumnToView, stream); |
| } |
| |
| ReadWriteIOUtils.write(targetDeviceToAlignedMap.size(), stream); |
| for (Map.Entry<String, Boolean> entry : targetDeviceToAlignedMap.entrySet()) { |
| ReadWriteIOUtils.write(entry.getKey(), stream); |
| ReadWriteIOUtils.write(entry.getValue(), stream); |
| } |
| } |
| |
| public static IntoPathDescriptor deserialize(ByteBuffer byteBuffer) { |
| int listSize = ReadWriteIOUtils.readInt(byteBuffer); |
| List<Pair<String, PartialPath>> sourceTargetPathPairList = new ArrayList<>(listSize); |
| for (int i = 0; i < listSize; i++) { |
| String sourceColumn = ReadWriteIOUtils.readString(byteBuffer); |
| PartialPath targetPath = (PartialPath) PathDeserializeUtil.deserialize(byteBuffer); |
| sourceTargetPathPairList.add(new Pair<>(sourceColumn, targetPath)); |
| } |
| |
| List<String> sourceColumnToViewList = new ArrayList<>(); |
| for (int i = 0; i < listSize; i++) { |
| String viewPath = ReadWriteIOUtils.readString(byteBuffer); |
| sourceColumnToViewList.add(StringUtils.isEmpty(viewPath) ? "" : viewPath); |
| } |
| |
| int mapSize = ReadWriteIOUtils.readInt(byteBuffer); |
| Map<String, Boolean> targetDeviceToAlignedMap = new HashMap<>(mapSize); |
| for (int i = 0; i < mapSize; i++) { |
| targetDeviceToAlignedMap.put( |
| ReadWriteIOUtils.readString(byteBuffer), ReadWriteIOUtils.readBool(byteBuffer)); |
| } |
| return new IntoPathDescriptor( |
| sourceTargetPathPairList, sourceColumnToViewList, targetDeviceToAlignedMap); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) { |
| return false; |
| } |
| IntoPathDescriptor that = (IntoPathDescriptor) o; |
| return sourceTargetPathPairList.equals(that.sourceTargetPathPairList) |
| && targetDeviceToAlignedMap.equals(that.targetDeviceToAlignedMap); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(sourceTargetPathPairList, targetDeviceToAlignedMap); |
| } |
| } |