| /* |
| * 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.hadoop.hbase.regionserver; |
| |
| import java.io.IOException; |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.NavigableMap; |
| import java.util.TreeMap; |
| import org.apache.hadoop.hbase.Cell; |
| import org.apache.yetus.audience.InterfaceAudience; |
| |
| /** |
| * class for cell sink that separates the provided cells into multiple files for date tiered |
| * compaction. |
| */ |
| @InterfaceAudience.Private |
| public class DateTieredMultiFileWriter extends AbstractMultiFileWriter { |
| |
| private final NavigableMap<Long, StoreFileWriter> lowerBoundary2Writer = new TreeMap<>(); |
| |
| private final boolean needEmptyFile; |
| |
| private final Map<Long, String> lowerBoundariesPolicies; |
| |
| /** |
| * @param lowerBoundariesPolicies each window to storage policy map. |
| * @param needEmptyFile whether need to create an empty store file if we haven't written |
| * out anything. |
| */ |
| public DateTieredMultiFileWriter(List<Long> lowerBoundaries, |
| Map<Long, String> lowerBoundariesPolicies, boolean needEmptyFile) { |
| for (Long lowerBoundary : lowerBoundaries) { |
| lowerBoundary2Writer.put(lowerBoundary, null); |
| } |
| this.needEmptyFile = needEmptyFile; |
| this.lowerBoundariesPolicies = lowerBoundariesPolicies; |
| } |
| |
| @Override |
| public void append(Cell cell) throws IOException { |
| Map.Entry<Long, StoreFileWriter> entry = lowerBoundary2Writer.floorEntry(cell.getTimestamp()); |
| StoreFileWriter writer = entry.getValue(); |
| if (writer == null) { |
| String lowerBoundaryStoragePolicy = lowerBoundariesPolicies.get(entry.getKey()); |
| if (lowerBoundaryStoragePolicy != null) { |
| writer = writerFactory.createWriterWithStoragePolicy(lowerBoundaryStoragePolicy); |
| } else { |
| writer = writerFactory.createWriter(); |
| } |
| lowerBoundary2Writer.put(entry.getKey(), writer); |
| } |
| writer.append(cell); |
| } |
| |
| @Override |
| protected Collection<StoreFileWriter> writers() { |
| return lowerBoundary2Writer.values(); |
| } |
| |
| @Override |
| protected void preCommitWriters() throws IOException { |
| if (!needEmptyFile) { |
| return; |
| } |
| for (StoreFileWriter writer : lowerBoundary2Writer.values()) { |
| if (writer != null) { |
| return; |
| } |
| } |
| // we haven't written out any data, create an empty file to retain metadata |
| lowerBoundary2Writer.put(lowerBoundary2Writer.firstKey(), writerFactory.createWriter()); |
| } |
| } |