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
19 package org.apache.hadoop.hbase.chaos;
20
21 import java.net.InetAddress;
22 import java.net.UnknownHostException;
23
24 import org.apache.hadoop.conf.Configuration;
25 import org.apache.hadoop.hbase.HConstants;
26 import org.apache.hadoop.hbase.classification.InterfaceAudience;
27
28 /**
29 * ChaosUtils holds a bunch of useful functions like getting hostname and getting ZooKeeper quorum.
30 */
31 @InterfaceAudience.Private
32 public class ChaosUtils {
33
34 public static String getHostName() throws UnknownHostException {
35 return InetAddress.getLocalHost().getHostName();
36 }
37
38
39 public static String getZKQuorum(Configuration conf) {
40 String port =
41 Integer.toString(conf.getInt(HConstants.ZOOKEEPER_CLIENT_PORT, 2181));
42 String[] serverHosts = conf.getStrings(HConstants.ZOOKEEPER_QUORUM, "localhost");
43 StringBuilder sb = new StringBuilder();
44 for (int i = 0; i < serverHosts.length; i++) {
45 serverHosts[i] = serverHosts[i] + ":" + port;
46 sb.append(serverHosts[i]);
47 if (i < serverHosts.length - 1) {
48 sb.append(",");
49 }
50 }
51 return sb.toString();
52 }
53
54 }