| /* |
| * 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.tsfile.file.metadata; |
| |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.nio.ByteBuffer; |
| import java.util.List; |
| import org.apache.iotdb.tsfile.common.cache.Accountable; |
| import org.apache.iotdb.tsfile.file.metadata.enums.TSDataType; |
| import org.apache.iotdb.tsfile.file.metadata.statistics.Statistics; |
| import org.apache.iotdb.tsfile.read.controller.IChunkMetadataLoader; |
| import org.apache.iotdb.tsfile.utils.ReadWriteIOUtils; |
| |
| public class TimeseriesMetadata implements Accountable { |
| |
| private long startOffsetOfChunkMetaDataList; |
| private int chunkMetaDataListDataSize; |
| |
| private String measurementId; |
| private TSDataType dataType; |
| |
| private Statistics<?> statistics; |
| |
| // modified is true when there are modifications of the series, or from unseq file |
| private boolean modified; |
| |
| protected IChunkMetadataLoader chunkMetadataLoader; |
| |
| private long ramSize; |
| |
| // used for SeriesReader to indicate whether it is a seq/unseq timeseries metadata |
| private boolean isSeq = true; |
| |
| public TimeseriesMetadata() { |
| } |
| |
| public TimeseriesMetadata(long startOffsetOfChunkMetaDataList, int chunkMetaDataListDataSize, |
| String measurementId, TSDataType dataType, Statistics statistics) { |
| this.startOffsetOfChunkMetaDataList = startOffsetOfChunkMetaDataList; |
| this.chunkMetaDataListDataSize = chunkMetaDataListDataSize; |
| this.measurementId = measurementId; |
| this.dataType = dataType; |
| this.statistics = statistics; |
| } |
| |
| public TimeseriesMetadata(TimeseriesMetadata timeseriesMetadata) { |
| this.startOffsetOfChunkMetaDataList = timeseriesMetadata.startOffsetOfChunkMetaDataList; |
| this.chunkMetaDataListDataSize = timeseriesMetadata.chunkMetaDataListDataSize; |
| this.measurementId = timeseriesMetadata.measurementId; |
| this.dataType = timeseriesMetadata.dataType; |
| this.statistics = timeseriesMetadata.statistics; |
| this.modified = timeseriesMetadata.modified; |
| } |
| |
| public static TimeseriesMetadata deserializeFrom(ByteBuffer buffer) { |
| TimeseriesMetadata timeseriesMetaData = new TimeseriesMetadata(); |
| timeseriesMetaData.setMeasurementId(ReadWriteIOUtils.readString(buffer)); |
| timeseriesMetaData.setTSDataType(ReadWriteIOUtils.readDataType(buffer)); |
| timeseriesMetaData.setOffsetOfChunkMetaDataList(ReadWriteIOUtils.readLong(buffer)); |
| timeseriesMetaData.setDataSizeOfChunkMetaDataList(ReadWriteIOUtils.readInt(buffer)); |
| timeseriesMetaData.setStatistics(Statistics.deserialize(buffer, timeseriesMetaData.dataType)); |
| return timeseriesMetaData; |
| } |
| |
| /** |
| * serialize to outputStream. |
| * |
| * @param outputStream outputStream |
| * @return byte length |
| * @throws IOException IOException |
| */ |
| public int serializeTo(OutputStream outputStream) throws IOException { |
| int byteLen = 0; |
| byteLen += ReadWriteIOUtils.write(measurementId, outputStream); |
| byteLen += ReadWriteIOUtils.write(dataType, outputStream); |
| byteLen += ReadWriteIOUtils.write(startOffsetOfChunkMetaDataList, outputStream); |
| byteLen += ReadWriteIOUtils.write(chunkMetaDataListDataSize, outputStream); |
| byteLen += statistics.serialize(outputStream); |
| return byteLen; |
| } |
| |
| public long getOffsetOfChunkMetaDataList() { |
| return startOffsetOfChunkMetaDataList; |
| } |
| |
| public void setOffsetOfChunkMetaDataList(long position) { |
| this.startOffsetOfChunkMetaDataList = position; |
| } |
| |
| public String getMeasurementId() { |
| return measurementId; |
| } |
| |
| public void setMeasurementId(String measurementId) { |
| this.measurementId = measurementId; |
| } |
| |
| public int getDataSizeOfChunkMetaDataList() { |
| return chunkMetaDataListDataSize; |
| } |
| |
| public void setDataSizeOfChunkMetaDataList(int size) { |
| this.chunkMetaDataListDataSize = size; |
| } |
| |
| public TSDataType getTSDataType() { |
| return dataType; |
| } |
| |
| public void setTSDataType(TSDataType tsDataType) { |
| this.dataType = tsDataType; |
| } |
| |
| public Statistics getStatistics() { |
| return statistics; |
| } |
| |
| public void setStatistics(Statistics statistics) { |
| this.statistics = statistics; |
| } |
| |
| public void setChunkMetadataLoader(IChunkMetadataLoader chunkMetadataLoader) { |
| this.chunkMetadataLoader = chunkMetadataLoader; |
| } |
| |
| public List<ChunkMetadata> loadChunkMetadataList() throws IOException { |
| return chunkMetadataLoader.loadChunkMetadataList(); |
| } |
| |
| public boolean isModified() { |
| return modified; |
| } |
| |
| public void setModified(boolean modified) { |
| this.modified = modified; |
| } |
| |
| public void setRamSize(long size) { |
| this.ramSize = size; |
| } |
| |
| @Override |
| public long getRamSize() { |
| return ramSize; |
| } |
| |
| public void setSeq(boolean seq) { |
| isSeq = seq; |
| } |
| |
| public boolean isSeq() { |
| return isSeq; |
| } |
| } |