| /** |
| * 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.replication; |
| |
| import java.util.List; |
| import java.util.Map; |
| import org.apache.hadoop.hbase.Cell; |
| import org.apache.hadoop.hbase.CellUtil; |
| import org.apache.hadoop.hbase.TableName; |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.apache.hadoop.hbase.wal.WAL.Entry; |
| import org.apache.hadoop.hbase.wal.WALEdit; |
| import org.apache.yetus.audience.InterfaceAudience; |
| |
| /** |
| * Filter a WAL Entry by the peer config: replicate_all flag, namespaces config, table-cfs config, |
| * exclude namespaces config, and exclude table-cfs config. |
| * |
| * If replicate_all flag is true, it means all user tables will be replicated to peer cluster. But |
| * you can set exclude namespaces or exclude table-cfs which can't be replicated to peer cluster. |
| * Note: set a exclude namespace means that all tables in this namespace can't be replicated. |
| * |
| * If replicate_all flag is false, it means all user tables can't be replicated to peer cluster. |
| * But you can set namespaces or table-cfs which will be replicated to peer cluster. |
| * Note: set a namespace means that all tables in this namespace will be replicated. |
| */ |
| @InterfaceAudience.Private |
| public class NamespaceTableCfWALEntryFilter implements WALEntryFilter, WALCellFilter { |
| |
| private final ReplicationPeer peer; |
| private BulkLoadCellFilter bulkLoadFilter = new BulkLoadCellFilter(); |
| |
| public NamespaceTableCfWALEntryFilter(ReplicationPeer peer) { |
| this.peer = peer; |
| } |
| |
| @Override |
| public Entry filter(Entry entry) { |
| if (this.peer.getPeerConfig().needToReplicate(entry.getKey().getTableName())) { |
| return entry; |
| } else { |
| return null; |
| } |
| } |
| |
| @Override |
| public Cell filterCell(final Entry entry, Cell cell) { |
| ReplicationPeerConfig peerConfig = this.peer.getPeerConfig(); |
| if (peerConfig.replicateAllUserTables()) { |
| // replicate all user tables, but filter by exclude table-cfs config |
| final Map<TableName, List<String>> excludeTableCfs = peerConfig.getExcludeTableCFsMap(); |
| if (excludeTableCfs == null) { |
| return cell; |
| } |
| |
| if (CellUtil.matchingColumn(cell, WALEdit.METAFAMILY, WALEdit.BULK_LOAD)) { |
| cell = bulkLoadFilter.filterCell(cell, |
| fam -> filterByExcludeTableCfs(entry.getKey().getTableName(), Bytes.toString(fam), |
| excludeTableCfs)); |
| } else { |
| if (filterByExcludeTableCfs(entry.getKey().getTableName(), |
| Bytes.toString(cell.getFamilyArray(), cell.getFamilyOffset(), cell.getFamilyLength()), |
| excludeTableCfs)) { |
| return null; |
| } |
| } |
| |
| return cell; |
| } else { |
| // not replicate all user tables, so filter by table-cfs config |
| final Map<TableName, List<String>> tableCfs = peerConfig.getTableCFsMap(); |
| if (tableCfs == null) { |
| return cell; |
| } |
| |
| if (CellUtil.matchingColumn(cell, WALEdit.METAFAMILY, WALEdit.BULK_LOAD)) { |
| cell = bulkLoadFilter.filterCell(cell, |
| fam -> filterByTableCfs(entry.getKey().getTableName(), Bytes.toString(fam), tableCfs)); |
| } else { |
| if (filterByTableCfs(entry.getKey().getTableName(), |
| Bytes.toString(cell.getFamilyArray(), cell.getFamilyOffset(), cell.getFamilyLength()), |
| tableCfs)) { |
| return null; |
| } |
| } |
| |
| return cell; |
| } |
| } |
| |
| private boolean filterByExcludeTableCfs(TableName tableName, String family, |
| Map<TableName, List<String>> excludeTableCfs) { |
| List<String> excludeCfs = excludeTableCfs.get(tableName); |
| if (excludeCfs != null) { |
| // empty cfs means all cfs of this table are excluded |
| if (excludeCfs.isEmpty()) { |
| return true; |
| } |
| // ignore(remove) kv if its cf is in the exclude cfs list |
| if (excludeCfs.contains(family)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| private boolean filterByTableCfs(TableName tableName, String family, |
| Map<TableName, List<String>> tableCfs) { |
| List<String> cfs = tableCfs.get(tableName); |
| // ignore(remove) kv if its cf isn't in the replicable cf list |
| // (empty cfs means all cfs of this table are replicable) |
| if (cfs != null && !cfs.contains(family)) { |
| return true; |
| } |
| return false; |
| } |
| } |