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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.client;
19  
20  import org.apache.hadoop.conf.Configuration;
21  import org.apache.hadoop.hbase.util.ReflectionUtils;
22  
23  /**
24   * Factory to create an {@link RpcRetryingCaller}
25   */
26  public class RpcRetryingCallerFactory {
27  
28    /** Configuration key for a custom {@link RpcRetryingCaller} */
29    public static final String CUSTOM_CALLER_CONF_KEY = "hbase.rpc.callerfactory.class";
30    protected final Configuration conf;
31  
32    public RpcRetryingCallerFactory(Configuration conf) {
33      this.conf = conf;
34    }
35  
36    public <T> RpcRetryingCaller<T> newCaller() {
37      return new RpcRetryingCaller<T>(conf);
38    }
39  
40    public static RpcRetryingCallerFactory instantiate(Configuration configuration) {
41      String rpcCallerFactoryClazz =
42          configuration.get(RpcRetryingCallerFactory.CUSTOM_CALLER_CONF_KEY,
43            RpcRetryingCallerFactory.class.getName());
44      return ReflectionUtils.instantiateWithCustomCtor(rpcCallerFactoryClazz,
45        new Class[] { Configuration.class }, new Object[] { configuration });
46    }
47  }