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.ipc;
19
20 import org.apache.hadoop.conf.Configuration;
21 import org.apache.hadoop.hbase.classification.InterfaceAudience;
22 import org.apache.hadoop.hbase.util.ReflectionUtils;
23
24 import java.net.SocketAddress;
25
26 /**
27 * Factory to create a {@link org.apache.hadoop.hbase.ipc.RpcClient}
28 */
29 @InterfaceAudience.Private
30 public final class RpcClientFactory {
31
32 public static final String CUSTOM_RPC_CLIENT_IMPL_CONF_KEY = "hbase.rpc.client.impl";
33
34 /**
35 * Private Constructor
36 */
37 private RpcClientFactory() {
38 }
39
40 /**
41 * Creates a new RpcClient by the class defined in the configuration or falls back to
42 * RpcClientImpl
43 * @param conf configuration
44 * @param clusterId the cluster id
45 * @return newly created RpcClient
46 */
47 public static RpcClient createClient(Configuration conf, String clusterId) {
48 return createClient(conf, clusterId, null);
49 }
50
51 /**
52 * Creates a new RpcClient by the class defined in the configuration or falls back to
53 * RpcClientImpl
54 * @param conf configuration
55 * @param clusterId the cluster id
56 * @param localAddr client socket bind address.
57 * @return newly created RpcClient
58 */
59 public static RpcClient createClient(Configuration conf, String clusterId,
60 SocketAddress localAddr) {
61 String rpcClientClass =
62 conf.get(CUSTOM_RPC_CLIENT_IMPL_CONF_KEY,
63 RpcClientImpl.class.getName());
64 return ReflectionUtils.instantiateWithCustomCtor(
65 rpcClientClass,
66 new Class[] { Configuration.class, String.class, SocketAddress.class },
67 new Object[] { conf, clusterId, localAddr }
68 );
69 }
70 }