| /* |
| * 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.compaction.tool; |
| |
| import org.apache.iotdb.tsfile.file.metadata.ChunkMetadata; |
| import org.apache.iotdb.tsfile.file.metadata.IDeviceID; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.nio.file.NoSuchFileException; |
| import java.util.List; |
| import java.util.concurrent.Callable; |
| |
| public class SingleSequenceFileTask implements Callable<SequenceFileTaskSummary> { |
| private UnseqSpaceStatistics unseqSpaceStatistics; |
| private String seqFile; |
| |
| public SingleSequenceFileTask(UnseqSpaceStatistics unseqSpaceStatistics, String seqFile) { |
| this.unseqSpaceStatistics = unseqSpaceStatistics; |
| this.seqFile = seqFile; |
| } |
| |
| @Override |
| public SequenceFileTaskSummary call() throws Exception { |
| return checkSeqFile(unseqSpaceStatistics, seqFile); |
| } |
| |
| private SequenceFileTaskSummary checkSeqFile( |
| UnseqSpaceStatistics unseqSpaceStatistics, String seqFile) { |
| SequenceFileTaskSummary summary = new SequenceFileTaskSummary(); |
| File f = new File(seqFile); |
| if (!f.exists()) { |
| return summary; |
| } |
| summary.fileSize += f.length(); |
| try (TsFileStatisticReader reader = new TsFileStatisticReader(seqFile)) { |
| // statistics sequence file information and updates to overlapStatistic |
| List<TsFileStatisticReader.ChunkGroupStatistics> chunkGroupStatisticsList = |
| reader.getChunkGroupStatisticsList(); |
| for (TsFileStatisticReader.ChunkGroupStatistics chunkGroupStatistics : |
| chunkGroupStatisticsList) { |
| summary.totalChunks += chunkGroupStatistics.getTotalChunkNum(); |
| IDeviceID deviceId = chunkGroupStatistics.getDeviceID(); |
| |
| long deviceStartTime = Long.MAX_VALUE, deviceEndTime = Long.MIN_VALUE; |
| |
| for (ChunkMetadata chunkMetadata : chunkGroupStatistics.getChunkMetadataList()) { |
| // skip empty chunk |
| if (chunkMetadata.getStartTime() > chunkMetadata.getEndTime()) { |
| continue; |
| } |
| // update device start time and end time |
| deviceStartTime = Math.min(deviceStartTime, chunkMetadata.getStartTime()); |
| deviceEndTime = Math.max(deviceEndTime, chunkMetadata.getEndTime()); |
| |
| summary.setMinStartTime(deviceStartTime); |
| summary.setMaxEndTime(deviceEndTime); |
| |
| // check chunk overlap |
| Interval interval = |
| new Interval(chunkMetadata.getStartTime(), chunkMetadata.getEndTime()); |
| String measurementId = chunkMetadata.getMeasurementUid(); |
| if (unseqSpaceStatistics.chunkHasOverlap(deviceId, measurementId, interval)) { |
| summary.overlapChunk++; |
| } |
| } |
| // check device overlap |
| if (deviceStartTime > deviceEndTime) { |
| continue; |
| } |
| Interval deviceInterval = new Interval(deviceStartTime, deviceEndTime); |
| if (!unseqSpaceStatistics.chunkGroupHasOverlap(deviceId, deviceInterval)) { |
| continue; |
| } |
| summary.overlapChunkGroup++; |
| } |
| summary.totalChunkGroups = chunkGroupStatisticsList.size(); |
| } catch (IOException e) { |
| if (e instanceof NoSuchFileException) { |
| System.out.println(seqFile + " is not exist"); |
| return new SequenceFileTaskSummary(); |
| } |
| e.printStackTrace(); |
| return new SequenceFileTaskSummary(); |
| } |
| return summary; |
| } |
| } |