001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018package org.apache.hadoop.hbase.util; 019 020import static org.apache.hadoop.hbase.regionserver.HStoreFile.LAST_BLOOM_KEY; 021 022import java.io.IOException; 023import org.apache.hadoop.hbase.Cell; 024import org.apache.hadoop.hbase.CellComparator; 025import org.apache.hadoop.hbase.CellUtil; 026import org.apache.hadoop.hbase.io.hfile.HFile.Writer; 027import org.apache.yetus.audience.InterfaceAudience; 028 029/** 030 * Handles ROW bloom related context. It works with both ByteBufferedCell and byte[] backed cells 031 */ 032@InterfaceAudience.Private 033public class RowBloomContext extends BloomContext { 034 035 public RowBloomContext(BloomFilterWriter bloomFilterWriter, CellComparator comparator) { 036 super(bloomFilterWriter, comparator); 037 } 038 039 @Override 040 public void addLastBloomKey(Writer writer) throws IOException { 041 if (this.getLastCell() != null) { 042 byte[] key = CellUtil.copyRow(this.getLastCell()); 043 writer.appendFileInfo(LAST_BLOOM_KEY, key); 044 } 045 } 046 047 @Override 048 protected boolean isNewKey(Cell cell) { 049 if (this.getLastCell() != null) { 050 return !CellUtil.matchingRows(cell, this.getLastCell()); 051 } 052 return true; 053 } 054}