| /* |
| * 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.ozone.container.metadata; |
| |
| import org.apache.hadoop.hdds.conf.ConfigurationSource; |
| import org.apache.hadoop.hdds.utils.db.DBColumnFamilyDefinition; |
| import org.apache.hadoop.hdds.utils.db.DBDefinition; |
| import org.apache.hadoop.ozone.container.common.helpers.BlockData; |
| import org.apache.hadoop.ozone.container.common.helpers.ChunkInfoList; |
| |
| import java.io.File; |
| |
| /** |
| * This class serves as an intermediate format for all possible database |
| * layouts for datanodes. |
| */ |
| public abstract class AbstractDatanodeDBDefinition implements DBDefinition { |
| |
| private File dbDir; |
| |
| /** |
| * @param dbPath The absolute path to the .db file corresponding to this |
| * {@link DBDefinition}. |
| */ |
| protected AbstractDatanodeDBDefinition(String dbPath) { |
| this.dbDir = new File(dbPath); |
| } |
| |
| @Override |
| public String getName() { |
| return dbDir.getName(); |
| } |
| |
| @Override |
| public File getDBLocation(ConfigurationSource conf) { |
| return dbDir.getParentFile(); |
| } |
| |
| @Override |
| public String getLocationConfigKey() { |
| throw new UnsupportedOperationException( |
| "No location config key available for datanode databases."); |
| } |
| |
| @Override |
| public DBColumnFamilyDefinition[] getColumnFamilies() { |
| return new DBColumnFamilyDefinition[] {getBlockDataColumnFamily(), |
| getMetadataColumnFamily(), getDeletedBlocksColumnFamily()}; |
| } |
| |
| public abstract DBColumnFamilyDefinition<String, BlockData> |
| getBlockDataColumnFamily(); |
| |
| public abstract DBColumnFamilyDefinition<String, Long> |
| getMetadataColumnFamily(); |
| |
| public abstract DBColumnFamilyDefinition<String, ChunkInfoList> |
| getDeletedBlocksColumnFamily(); |
| } |