| /* |
| * 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.execute.utils.writer; |
| |
| import org.apache.iotdb.db.conf.IoTDBDescriptor; |
| import org.apache.iotdb.db.storageengine.dataregion.compaction.execute.utils.CompactionUtils; |
| import org.apache.iotdb.db.storageengine.dataregion.compaction.io.CompactionTsFileWriter; |
| import org.apache.iotdb.db.storageengine.dataregion.compaction.schedule.constant.CompactionType; |
| import org.apache.iotdb.db.storageengine.dataregion.tsfile.TsFileResource; |
| import org.apache.iotdb.db.storageengine.rescon.memory.SystemInfo; |
| |
| import org.apache.tsfile.file.metadata.IDeviceID; |
| import org.apache.tsfile.read.TimeValuePair; |
| import org.apache.tsfile.read.common.block.TsBlock; |
| |
| import java.io.IOException; |
| |
| public abstract class AbstractInnerCompactionWriter extends AbstractCompactionWriter { |
| protected CompactionTsFileWriter fileWriter; |
| |
| protected boolean isEmptyFile; |
| |
| protected TsFileResource targetResource; |
| |
| protected AbstractInnerCompactionWriter(TsFileResource targetFileResource) throws IOException { |
| long sizeForFileWriter = |
| (long) |
| ((double) SystemInfo.getInstance().getMemorySizeForCompaction() |
| / IoTDBDescriptor.getInstance().getConfig().getCompactionThreadCount() |
| * IoTDBDescriptor.getInstance().getConfig().getChunkMetadataSizeProportion()); |
| this.targetResource = targetFileResource; |
| this.fileWriter = |
| new CompactionTsFileWriter( |
| targetFileResource.getTsFile(), |
| sizeForFileWriter, |
| targetResource.isSeq() |
| ? CompactionType.INNER_SEQ_COMPACTION |
| : CompactionType.INNER_UNSEQ_COMPACTION); |
| isEmptyFile = true; |
| } |
| |
| @Override |
| public void startChunkGroup(IDeviceID deviceId, boolean isAlign) throws IOException { |
| fileWriter.startChunkGroup(deviceId); |
| this.isAlign = isAlign; |
| this.deviceId = deviceId; |
| } |
| |
| @Override |
| public void endChunkGroup() throws IOException { |
| CompactionUtils.updateResource(targetResource, fileWriter, deviceId); |
| fileWriter.endChunkGroup(); |
| } |
| |
| @Override |
| public void endMeasurement(int subTaskId) throws IOException { |
| sealChunk(fileWriter, chunkWriters[subTaskId], subTaskId); |
| } |
| |
| @Override |
| public void write(TimeValuePair timeValuePair, int subTaskId) throws IOException { |
| checkPreviousTimestamp(timeValuePair.getTimestamp(), subTaskId); |
| writeDataPoint(timeValuePair.getTimestamp(), timeValuePair.getValue(), chunkWriters[subTaskId]); |
| chunkPointNumArray[subTaskId]++; |
| checkChunkSizeAndMayOpenANewChunk(fileWriter, chunkWriters[subTaskId], subTaskId); |
| isEmptyFile = false; |
| lastTime[subTaskId] = timeValuePair.getTimestamp(); |
| } |
| |
| @Override |
| public abstract void write(TsBlock tsBlock, int subTaskId) throws IOException; |
| |
| @Override |
| public void endFile() throws IOException { |
| fileWriter.endFile(); |
| if (isEmptyFile) { |
| targetResource.forceMarkDeleted(); |
| } |
| } |
| |
| @Override |
| public void close() throws Exception { |
| if (fileWriter != null && fileWriter.canWrite()) { |
| fileWriter.close(); |
| } |
| fileWriter = null; |
| } |
| |
| @Override |
| public void checkAndMayFlushChunkMetadata() throws IOException { |
| fileWriter.checkMetadataSizeAndMayFlush(); |
| } |
| |
| @Override |
| public long getWriterSize() throws IOException { |
| return fileWriter.getPos(); |
| } |
| } |