| /* |
| * 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.storageengine.dataregion.memtable; |
| |
| import org.apache.iotdb.db.exception.query.QueryProcessException; |
| import org.apache.iotdb.db.queryengine.execution.fragment.QueryContext; |
| import org.apache.iotdb.db.storageengine.dataregion.read.reader.chunk.MemAlignedChunkLoader; |
| import org.apache.iotdb.db.utils.datastructure.AlignedTVList; |
| import org.apache.iotdb.db.utils.datastructure.TVList; |
| |
| import org.apache.tsfile.common.conf.TSFileDescriptor; |
| import org.apache.tsfile.enums.TSDataType; |
| import org.apache.tsfile.file.metadata.AlignedChunkMetadata; |
| import org.apache.tsfile.file.metadata.ChunkMetadata; |
| import org.apache.tsfile.file.metadata.IChunkMetadata; |
| import org.apache.tsfile.file.metadata.enums.TSEncoding; |
| import org.apache.tsfile.file.metadata.statistics.Statistics; |
| import org.apache.tsfile.read.common.TimeRange; |
| import org.apache.tsfile.read.reader.IPointReader; |
| import org.apache.tsfile.write.schema.IMeasurementSchema; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| public class AlignedReadOnlyMemChunk extends ReadOnlyMemChunk { |
| private final String timeChunkName; |
| |
| private final List<String> valueChunkNames; |
| |
| private final List<TSDataType> dataTypes; |
| |
| /** |
| * The constructor for Aligned type. |
| * |
| * @param schema VectorMeasurementSchema |
| * @param tvList VectorTvList |
| * @param deletionList The timeRange of deletionList |
| * @throws QueryProcessException if there is unsupported data type. |
| */ |
| public AlignedReadOnlyMemChunk( |
| QueryContext context, |
| IMeasurementSchema schema, |
| TVList tvList, |
| List<List<TimeRange>> deletionList) |
| throws QueryProcessException { |
| super(context); |
| this.timeChunkName = schema.getMeasurementId(); |
| this.valueChunkNames = schema.getSubMeasurementsList(); |
| this.dataTypes = schema.getSubMeasurementsTSDataTypeList(); |
| int floatPrecision = TSFileDescriptor.getInstance().getConfig().getFloatPrecision(); |
| List<TSEncoding> encodingList = schema.getSubMeasurementsTSEncodingList(); |
| this.tsBlock = |
| ((AlignedTVList) tvList).buildTsBlock(floatPrecision, encodingList, deletionList); |
| initAlignedChunkMetaFromTsBlock(); |
| } |
| |
| private void initAlignedChunkMetaFromTsBlock() throws QueryProcessException { |
| // Time chunk |
| Statistics timeStatistics = Statistics.getStatsByType(TSDataType.VECTOR); |
| IChunkMetadata timeChunkMetadata = |
| new ChunkMetadata(timeChunkName, TSDataType.VECTOR, 0, timeStatistics); |
| List<IChunkMetadata> valueChunkMetadataList = new ArrayList<>(); |
| // Update time chunk |
| for (int row = 0; row < tsBlock.getPositionCount(); row++) { |
| timeStatistics.update(tsBlock.getTimeColumn().getLong(row)); |
| } |
| timeStatistics.setEmpty(false); |
| // Update value chunk |
| for (int column = 0; column < tsBlock.getValueColumnCount(); column++) { |
| Statistics valueStatistics = Statistics.getStatsByType(dataTypes.get(column)); |
| valueStatistics.setEmpty(true); |
| switch (dataTypes.get(column)) { |
| case BOOLEAN: |
| for (int row = 0; row < tsBlock.getPositionCount(); row++) { |
| if (!tsBlock.getColumn(column).isNull(row)) { |
| long time = tsBlock.getTimeColumn().getLong(row); |
| valueStatistics.update(time, tsBlock.getColumn(column).getBoolean(row)); |
| } |
| } |
| break; |
| case TEXT: |
| for (int row = 0; row < tsBlock.getPositionCount(); row++) { |
| if (!tsBlock.getColumn(column).isNull(row)) { |
| long time = tsBlock.getTimeColumn().getLong(row); |
| valueStatistics.update(time, tsBlock.getColumn(column).getBinary(row)); |
| } |
| } |
| break; |
| case FLOAT: |
| for (int row = 0; row < tsBlock.getPositionCount(); row++) { |
| if (!tsBlock.getColumn(column).isNull(row)) { |
| long time = tsBlock.getTimeColumn().getLong(row); |
| valueStatistics.update(time, tsBlock.getColumn(column).getFloat(row)); |
| } |
| } |
| break; |
| case INT32: |
| for (int row = 0; row < tsBlock.getPositionCount(); row++) { |
| if (!tsBlock.getColumn(column).isNull(row)) { |
| long time = tsBlock.getTimeColumn().getLong(row); |
| valueStatistics.update(time, tsBlock.getColumn(column).getInt(row)); |
| } |
| } |
| break; |
| case INT64: |
| for (int row = 0; row < tsBlock.getPositionCount(); row++) { |
| if (!tsBlock.getColumn(column).isNull(row)) { |
| long time = tsBlock.getTimeColumn().getLong(row); |
| valueStatistics.update(time, tsBlock.getColumn(column).getLong(row)); |
| } |
| } |
| break; |
| case DOUBLE: |
| for (int row = 0; row < tsBlock.getPositionCount(); row++) { |
| if (!tsBlock.getColumn(column).isNull(row)) { |
| long time = tsBlock.getTimeColumn().getLong(row); |
| valueStatistics.update(time, tsBlock.getColumn(column).getDouble(row)); |
| } |
| } |
| break; |
| default: |
| throw new QueryProcessException("Unsupported data type:" + dataTypes.get(column)); |
| } |
| if (valueStatistics.getCount() > 0) { |
| IChunkMetadata valueChunkMetadata = |
| new ChunkMetadata( |
| valueChunkNames.get(column), dataTypes.get(column), 0, valueStatistics); |
| valueChunkMetadataList.add(valueChunkMetadata); |
| valueStatistics.setEmpty(false); |
| } else { |
| valueChunkMetadataList.add(null); |
| } |
| } |
| IChunkMetadata alignedChunkMetadata = |
| new AlignedChunkMetadata(timeChunkMetadata, valueChunkMetadataList); |
| alignedChunkMetadata.setChunkLoader(new MemAlignedChunkLoader(context, this)); |
| alignedChunkMetadata.setVersion(Long.MAX_VALUE); |
| cachedMetaData = alignedChunkMetadata; |
| } |
| |
| @Override |
| public boolean isEmpty() { |
| return tsBlock.isEmpty(); |
| } |
| |
| @Override |
| public IPointReader getPointReader() { |
| return tsBlock.getTsBlockAlignedRowIterator(); |
| } |
| } |