1 /*
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 */
19
20 package org.apache.hadoop.hbase.util;
21
22 import org.apache.hadoop.hbase.classification.InterfaceAudience;
23 import org.apache.hadoop.conf.Configuration;
24 import org.apache.hadoop.hbase.HBaseConfiguration;
25
26 /**
27 * Tool that prints out a configuration.
28 * Pass the configuration key on the command-line.
29 */
30 @InterfaceAudience.Private
31 public class HBaseConfTool {
32 public static void main(String args[]) {
33 if (args.length < 1) {
34 System.err.println("Usage: HBaseConfTool <CONFIGURATION_KEY>");
35 System.exit(1);
36 return;
37 }
38
39 Configuration conf = HBaseConfiguration.create();
40 System.out.println(conf.get(args[0]));
41 }
42 }