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 backtype.storm.utils.NimbusClient;
  import backtype.storm.utils.Utils;
  
  import java.security.InvalidParameterException;
  import java.util.Map;
  
  /**
   * @author fengjian
   * @since 2.1.1
   */
  public class blacklist {
  
      public static void main(String[] args) {
          if (args == null || args.length < 2) {
              throw new InvalidParameterException("Please input action and hostname");
          }
  
          String action = args[0];
          String hostname = args[1];
  
          NimbusClient client = null;
          try {
  
              Map conf = Utils.readStormConfig();
              client = NimbusClient.getConfiguredClient(conf);
  
              if (action.equals("add"))
                  client.getClient().setHostInBlackList(hostname);
              else {
                  client.getClient().removeHostOutBlackList(hostname);
              }
  
              System.out.println("Successfully submit command blacklist with action:" + action + " and hostname :" + hostname);
          } catch (Exception e) {
              System.out.println(e.getMessage());
              e.printStackTrace();
              throw new RuntimeException(e);
          } finally {
              if (client != null) {
                  client.close();
              }
          }
      }
  }
  