| /* |
| * 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.executor.readchunk.loader; |
| |
| import org.apache.iotdb.db.storageengine.dataregion.compaction.execute.utils.executor.ModifiedStatus; |
| |
| import org.apache.tsfile.enums.TSDataType; |
| import org.apache.tsfile.exception.write.PageException; |
| import org.apache.tsfile.file.header.PageHeader; |
| import org.apache.tsfile.file.metadata.enums.CompressionType; |
| import org.apache.tsfile.file.metadata.enums.TSEncoding; |
| import org.apache.tsfile.read.common.TimeRange; |
| import org.apache.tsfile.write.chunk.AlignedChunkWriterImpl; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.util.Collections; |
| import java.util.List; |
| |
| public abstract class PageLoader { |
| |
| protected PageHeader pageHeader; |
| protected CompressionType compressionType; |
| protected TSDataType dataType; |
| protected TSEncoding encoding; |
| protected List<TimeRange> deleteIntervalList; |
| protected ModifiedStatus modifiedStatus; |
| |
| protected PageLoader() {} |
| |
| protected PageLoader( |
| PageHeader pageHeader, |
| CompressionType compressionType, |
| TSDataType dataType, |
| TSEncoding encoding, |
| List<TimeRange> deleteIntervalList, |
| ModifiedStatus modifiedStatus) { |
| this.pageHeader = pageHeader; |
| this.compressionType = compressionType; |
| this.dataType = dataType; |
| this.encoding = encoding; |
| this.deleteIntervalList = deleteIntervalList; |
| this.modifiedStatus = modifiedStatus; |
| } |
| |
| public PageHeader getHeader() { |
| return pageHeader; |
| } |
| |
| public TSDataType getDataType() { |
| return dataType; |
| } |
| |
| public CompressionType getCompressionType() { |
| return compressionType; |
| } |
| |
| public TSEncoding getEncoding() { |
| return encoding; |
| } |
| |
| public abstract ByteBuffer getCompressedData() throws IOException; |
| |
| public abstract ByteBuffer getUnCompressedData() throws IOException; |
| |
| public ModifiedStatus getModifiedStatus() { |
| return modifiedStatus; |
| } |
| |
| public List<TimeRange> getDeleteIntervalList() { |
| if (this.modifiedStatus == ModifiedStatus.PARTIAL_DELETED) { |
| return this.deleteIntervalList; |
| } else if (this.modifiedStatus == ModifiedStatus.ALL_DELETED) { |
| return Collections.singletonList( |
| new TimeRange(pageHeader.getStartTime(), pageHeader.getEndTime())); |
| } else { |
| return null; |
| } |
| } |
| |
| public abstract void flushToTimeChunkWriter(AlignedChunkWriterImpl alignedChunkWriter) |
| throws PageException; |
| |
| public abstract void flushToValueChunkWriter( |
| AlignedChunkWriterImpl alignedChunkWriter, int valueColumnIndex) |
| throws IOException, PageException; |
| |
| public abstract boolean isEmpty(); |
| |
| public abstract void clear(); |
| } |