hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/metadata/DatanodeStoreSchemaOneImpl.java

/*
 * 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.Table;
import org.apache.hadoop.ozone.container.common.helpers.ChunkInfoList;

import java.io.IOException;

/**
 * Constructs a datanode store in accordance with schema version 1, which
 * places all data in the default column family.
 */
public class DatanodeStoreSchemaOneImpl extends AbstractDatanodeStore {
  /**
   * Constructs the metadata store and starts the DB Services.
   *
   * @param config - Ozone Configuration.
   * @throws IOException - on Failure.
   */
  public DatanodeStoreSchemaOneImpl(ConfigurationSource config,
      long containerID, String dbPath, boolean openReadOnly)
      throws IOException {
    super(config, containerID, new DatanodeSchemaOneDBDefinition(dbPath),
        openReadOnly);
  }

  @Override
  public Table<String, ChunkInfoList> getDeletedBlocksTable() {
    // Return a wrapper around the deleted blocks table to handle prefixes
    // when all data is stored in a single table.
    return new SchemaOneDeletedBlocksTable(super.getDeletedBlocksTable());
  }
}