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 */ 018 019package org.apache.hadoop.hbase.replication; 020 021import java.util.NavigableMap; 022 023import org.apache.hadoop.hbase.Cell; 024import org.apache.hadoop.hbase.CellUtil; 025import org.apache.hadoop.hbase.HConstants; 026import org.apache.yetus.audience.InterfaceAudience; 027import org.apache.hadoop.hbase.wal.WALEdit; 028import org.apache.hadoop.hbase.wal.WAL.Entry; 029 030import org.apache.hbase.thirdparty.com.google.common.base.Predicate; 031 032/** 033 * Keeps KVs that are scoped other than local 034 */ 035@InterfaceAudience.Private 036public class ScopeWALEntryFilter implements WALEntryFilter, WALCellFilter { 037 038 BulkLoadCellFilter bulkLoadFilter = new BulkLoadCellFilter(); 039 040 @Override 041 public Entry filter(Entry entry) { 042 NavigableMap<byte[], Integer> scopes = entry.getKey().getReplicationScopes(); 043 if (scopes == null || scopes.isEmpty()) { 044 return null; 045 } 046 return entry; 047 } 048 049 @Override 050 public Cell filterCell(Entry entry, Cell cell) { 051 final NavigableMap<byte[], Integer> scopes = entry.getKey().getReplicationScopes(); 052 // The scope will be null or empty if 053 // there's nothing to replicate in that WALEdit 054 byte[] fam = CellUtil.cloneFamily(cell); 055 if (CellUtil.matchingColumn(cell, WALEdit.METAFAMILY, WALEdit.BULK_LOAD)) { 056 cell = bulkLoadFilter.filterCell(cell, new Predicate<byte[]>() { 057 @Override 058 public boolean apply(byte[] fam) { 059 return !scopes.containsKey(fam) || scopes.get(fam) == HConstants.REPLICATION_SCOPE_LOCAL; 060 } 061 }); 062 } else { 063 if (!scopes.containsKey(fam) || scopes.get(fam) == HConstants.REPLICATION_SCOPE_LOCAL) { 064 return null; 065 } 066 } 067 return cell; 068 } 069}