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;
021
022import org.apache.hadoop.conf.Configuration;
023import org.apache.hadoop.hbase.util.ReflectionUtils;
024import org.apache.yetus.audience.InterfaceAudience;
025
026/**
027 * Factory class to get the instance of configured connection registry.
028 */
029@InterfaceAudience.Private
030final class ConnectionRegistryFactory {
031
032  private ConnectionRegistryFactory() {
033  }
034
035  /**
036   * @return The connection registry implementation to use.
037   */
038  static ConnectionRegistry getRegistry(Configuration conf) {
039    Class<? extends ConnectionRegistry> clazz =
040      conf.getClass(CLIENT_CONNECTION_REGISTRY_IMPL_CONF_KEY, RpcConnectionRegistry.class,
041        ConnectionRegistry.class);
042    return ReflectionUtils.newInstance(clazz, conf);
043  }
044}