View Javadoc

1   /*
2    * Copyright 2010 The Apache Software Foundation
3    *
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *     http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing, software
15   * distributed under the License is distributed on an "AS IS" BASIS,
16   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17   * See the License for the specific language governing permissions and
18   * limitations under the License.
19   */
20  
21  package org.apache.hadoop.hbase.util;
22  
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  public class HBaseConfTool {
31    public static void main(String args[]) {
32      if (args.length < 1) {
33        System.err.println("Usage: HBaseConfTool <CONFIGURATION_KEY>");
34        System.exit(1);
35        return;
36      }
37  
38      Configuration conf = HBaseConfiguration.create();
39      System.out.println(conf.get(args[0]));
40    }
41  }