/*
* 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.cassandra.dht.tokenallocator;
import java.net.InetAddress;
import java.util.NavigableMap;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.cassandra.dht.IPartitioner;
import org.apache.cassandra.dht.Token;
public class TokenAllocatorFactory
{
private static final Logger logger = LoggerFactory.getLogger(TokenAllocatorFactory.class);
public static TokenAllocator<InetAddress> createTokenAllocator(NavigableMap<Token, InetAddress> sortedTokens,
ReplicationStrategy<InetAddress> strategy,
IPartitioner partitioner)
{
if(strategy.replicas() == 1)
{
logger.info("Using NoReplicationTokenAllocator.");
return new NoReplicationTokenAllocator<>(sortedTokens, strategy, partitioner);
}
logger.info("Using ReplicationAwareTokenAllocator.");
return new ReplicationAwareTokenAllocator<>(sortedTokens, strategy, partitioner);
}
}