content: /*
   * 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.asterix.common.replication;
  
  import java.util.HashMap;
  import java.util.Map;
  
  public class ReplicationStrategyFactory implements IReplicationStrategyFactory {
  
      private static final Map<String, Class<? extends IReplicationStrategy>> BUILT_IN_REPLICATION_STRATEGY =
              new HashMap<>();
  
      static {
          BUILT_IN_REPLICATION_STRATEGY.put("none", NoReplicationStrategy.class);
          BUILT_IN_REPLICATION_STRATEGY.put("all", AllDatasetsReplicationStrategy.class);
          BUILT_IN_REPLICATION_STRATEGY.put("metadata", MetadataOnlyReplicationStrategy.class);
      }
  
      @Override
      public IReplicationStrategy create(String name) {
          String strategyName = name.toLowerCase();
          if (!BUILT_IN_REPLICATION_STRATEGY.containsKey(strategyName)) {
              throw new IllegalStateException("Couldn't find strategy with name: " + name);
          }
          Class<? extends IReplicationStrategy> clazz = BUILT_IN_REPLICATION_STRATEGY.get(strategyName);
          try {
              return clazz.newInstance();
          } catch (InstantiationException | IllegalAccessException e) {
              throw new IllegalStateException("Couldn't instantiated replication strategy: " + name, e);
          }
      }
  }
  