1 /**
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18 package org.apache.hadoop.hbase;
19
20 import org.apache.hadoop.hbase.classification.InterfaceAudience;
21 import org.apache.hadoop.conf.Configuration;
22 import org.apache.hadoop.hbase.coordination.ZkCoordinatedStateManager;
23 import org.apache.hadoop.util.ReflectionUtils;
24
25 /**
26 * Creates instance of {@link CoordinatedStateManager}
27 * based on configuration.
28 */
29 @InterfaceAudience.Private
30 public class CoordinatedStateManagerFactory {
31
32 /**
33 * Creates consensus provider from the given configuration.
34 * @param conf Configuration
35 * @return Implementation of {@link CoordinatedStateManager}
36 */
37 public static CoordinatedStateManager getCoordinatedStateManager(Configuration conf) {
38 Class<? extends CoordinatedStateManager> coordinatedStateMgrKlass =
39 conf.getClass(HConstants.HBASE_COORDINATED_STATE_MANAGER_CLASS,
40 ZkCoordinatedStateManager.class, CoordinatedStateManager.class);
41 return ReflectionUtils.newInstance(coordinatedStateMgrKlass, conf);
42 }
43 }