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 net.jcip.annotations.ThreadSafe;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  @ThreadSafe
  public class DefaultTokenFactoryRegistry implements TokenFactoryRegistry {
  
    private static final Logger LOG = LoggerFactory.getLogger(DefaultTokenFactoryRegistry.class);
  
    private final String logPrefix;
  
    public DefaultTokenFactoryRegistry(InternalDriverContext context) {
      this.logPrefix = context.getSessionName();
    }
  
    @Override
    public TokenFactory tokenFactoryFor(String partitioner) {
      if (Murmur3TokenFactory.PARTITIONER_NAME.equals(partitioner)) {
        LOG.debug("[{}] Detected Murmur3 partitioner ({})", logPrefix, partitioner);
        return new Murmur3TokenFactory();
      } else if (RandomTokenFactory.PARTITIONER_NAME.equals(partitioner)) {
        LOG.debug("[{}] Detected random partitioner ({})", logPrefix, partitioner);
        return new RandomTokenFactory();
      } else if (ByteOrderedTokenFactory.PARTITIONER_NAME.equals(partitioner)) {
        LOG.debug("[{}] Detected byte ordered partitioner ({})", logPrefix, partitioner);
        return new ByteOrderedTokenFactory();
      } else {
        LOG.warn(
            "[{}] Unsupported partitioner '{}', token map will be empty.", logPrefix, partitioner);
        return null;
      }
    }
  }
  