001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.client;
019
020import static org.apache.hadoop.hbase.HConstants.CLIENT_CONNECTION_REGISTRY_IMPL_CONF_KEY;
021import org.apache.hadoop.conf.Configuration;
022import org.apache.hadoop.hbase.util.ReflectionUtils;
023import org.apache.yetus.audience.InterfaceAudience;
024
025/**
026 * Factory class to get the instance of configured connection registry.
027 */
028@InterfaceAudience.Private
029final class ConnectionRegistryFactory {
030
031  private ConnectionRegistryFactory() {
032  }
033
034  /**
035   * @return The connection registry implementation to use.
036   */
037  static ConnectionRegistry getRegistry(Configuration conf) {
038    Class<? extends ConnectionRegistry> clazz = conf.getClass(
039        CLIENT_CONNECTION_REGISTRY_IMPL_CONF_KEY, MasterRegistry.class,
040        ConnectionRegistry.class);
041    return ReflectionUtils.newInstance(clazz, conf);
042  }
043}