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.replication;
019
020import org.apache.hadoop.hbase.Cell;
021import org.apache.hadoop.hbase.CellUtil;
022import org.apache.hadoop.hbase.TableName;
023import org.apache.hadoop.hbase.wal.WAL.Entry;
024import org.apache.hadoop.hbase.wal.WALEdit;
025import org.apache.yetus.audience.InterfaceAudience;
026
027/**
028 * Filter a WAL Entry by the peer config according to the table and family which it belongs to.
029 * @see ReplicationPeerConfig#needToReplicate(TableName, byte[])
030 */
031@InterfaceAudience.Private
032public class NamespaceTableCfWALEntryFilter implements WALEntryFilter, WALCellFilter {
033
034  private final ReplicationPeer peer;
035  private BulkLoadCellFilter bulkLoadFilter = new BulkLoadCellFilter();
036
037  public NamespaceTableCfWALEntryFilter(ReplicationPeer peer) {
038    this.peer = peer;
039  }
040
041  @Override
042  public Entry filter(Entry entry) {
043    if (this.peer.getPeerConfig().needToReplicate(entry.getKey().getTableName())) {
044      return entry;
045    } else {
046      return null;
047    }
048  }
049
050  @Override
051  public Cell filterCell(final Entry entry, Cell cell) {
052    ReplicationPeerConfig peerConfig = this.peer.getPeerConfig();
053    TableName tableName = entry.getKey().getTableName();
054    if (CellUtil.matchingColumn(cell, WALEdit.METAFAMILY, WALEdit.BULK_LOAD)) {
055      // If the cell is about BULKLOAD event, unpack and filter it by BulkLoadCellFilter.
056      return bulkLoadFilter.filterCell(cell, fam -> !peerConfig.needToReplicate(tableName, fam));
057    } else {
058      return peerConfig.needToReplicate(tableName, CellUtil.cloneFamily(cell)) ? cell : null;
059    }
060  }
061}