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 com.datastax.oss.driver.internal.core.metadata.token;
  
  import com.datastax.oss.driver.internal.core.context.InternalDriverContext;
  import com.datastax.oss.driver.shaded.guava.common.base.Preconditions;
  import java.util.Map;
  import net.jcip.annotations.ThreadSafe;
  
  @ThreadSafe
  public class DefaultReplicationStrategyFactory implements ReplicationStrategyFactory {
  
    private final String logPrefix;
  
    public DefaultReplicationStrategyFactory(InternalDriverContext context) {
      this.logPrefix = context.getSessionName();
    }
  
    @Override
    public ReplicationStrategy newInstance(Map<String, String> replicationConfig) {
      String strategyClass = replicationConfig.get("class");
      Preconditions.checkNotNull(
          strategyClass, "Missing replication strategy class in " + replicationConfig);
      switch (strategyClass) {
        case "org.apache.cassandra.locator.LocalStrategy":
          return new LocalReplicationStrategy();
        case "org.apache.cassandra.locator.SimpleStrategy":
          return new SimpleReplicationStrategy(replicationConfig);
        case "org.apache.cassandra.locator.NetworkTopologyStrategy":
          return new NetworkTopologyReplicationStrategy(replicationConfig, logPrefix);
        case "org.apache.cassandra.locator.EverywhereStrategy":
          return new EverywhereReplicationStrategy();
        default:
          throw new IllegalArgumentException("Unsupported replication strategy: " + strategyClass);
      }
    }
  }
  