/**
* 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.hbase;
import org.apache.hadoop.hbase.classification.InterfaceAudience;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.coordination.ZkCoordinatedStateManager;
import org.apache.hadoop.util.ReflectionUtils;
/**
* Creates instance of {@link CoordinatedStateManager}
* based on configuration.
*/
@InterfaceAudience.Private
public final class CoordinatedStateManagerFactory {
/**
* Private to keep this class from being accidentally instantiated.
*/
private CoordinatedStateManagerFactory(){}
/**
* Creates consensus provider from the given configuration.
* @param conf Configuration
* @return Implementation of {@link CoordinatedStateManager}
*/
public static CoordinatedStateManager getCoordinatedStateManager(Configuration conf) {
Class<? extends CoordinatedStateManager> coordinatedStateMgrKlass =
conf.getClass(HConstants.HBASE_COORDINATED_STATE_MANAGER_CLASS,
ZkCoordinatedStateManager.class, CoordinatedStateManager.class);
return ReflectionUtils.newInstance(coordinatedStateMgrKlass, conf);
}
}