001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.util;
019
020import org.apache.hadoop.conf.Configuration;
021import org.apache.hadoop.hbase.HBaseConfiguration;
022import org.apache.yetus.audience.InterfaceAudience;
023
024/**
025 * Tool that prints out a configuration. Pass the configuration key on the command-line.
026 */
027@InterfaceAudience.Private
028public class HBaseConfTool {
029  public static void main(String args[]) {
030    if (args.length < 1) {
031      System.err.println("Usage: HBaseConfTool <CONFIGURATION_KEY>");
032      System.exit(1);
033      return;
034    }
035
036    Configuration conf = HBaseConfiguration.create();
037    System.out.println(conf.get(args[0]));
038  }
039}