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 org.apache.cassandra.tools.nodetool;
  
  import org.apache.commons.lang3.StringUtils;
  
  import org.apache.cassandra.auth.AuthKeyspace;
  import org.apache.cassandra.tools.NodeProbe;
  import picocli.CommandLine.Command;
  import picocli.CommandLine.Parameters;
  
  import static org.apache.cassandra.tools.nodetool.CommandUtils.printSet;
  
  /**
   * Nodetool command to list available CIDR groups, in the table {@link AuthKeyspace#CIDR_GROUPS}
   */
  @Command(name = "listcidrgroups", description = "List existing cidr groups")
  public class ListCIDRGroups extends AbstractCommand
  {
      @Parameters(paramLabel = "cidrGroup", description = "LIST operation can be invoked with or without cidr group name", arity = "0..1")
      private String cidrGroup;
  
      @Override
      public void execute(NodeProbe probe)
      {
          if (StringUtils.isEmpty(cidrGroup))
          {
              printSet(probe.output().out, "CIDR Groups", probe.listAvailableCidrGroups());
              return;
          }
  
          printSet(probe.output().out, "CIDRs", probe.listCidrsOfCidrGroup(cidrGroup));
      }
  }
  