content: /**
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package backtype.storm.command;
  
  import java.security.InvalidParameterException;
  import java.util.Map;
  
  import backtype.storm.utils.Utils;
  
  /**
   * Get configuration
   *
   * @author longda
   */
  public class config_value {
      public static void main(String[] args) {
          if (args == null || args.length == 0) {
              throw new InvalidParameterException("Please input key name");
          }
  
          String key = args[0];
          Map conf = Utils.readStormConfig();
          System.out.print("VALUE: " + String.valueOf(conf.get(key)));
      }
  
  }
  