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   * 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.
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  package org.apache.cassandra.tools.nodetool;
  
  import org.apache.cassandra.tools.NodeProbe;
  import org.apache.cassandra.tools.nodetool.layout.CassandraUsage;
  import picocli.CommandLine.Command;
  import picocli.CommandLine.Parameters;
  
  import static org.apache.commons.lang3.StringUtils.EMPTY;
  
  @Command(name = "truncatehints", description = "Truncate all hints on the local node, or truncate hints for the endpoint(s) specified.")
  public class TruncateHints extends AbstractCommand
  {
      @CassandraUsage(usage = "[endpoint ... ]", description = "Endpoint address to delete hints for, either ip address (\"127.0.0.1\") or hostname")
      @Parameters(index = "0", arity = "0..1", description = "Endpoint address to delete hints for, either ip address ('127.0.0.1') or hostname")
      private String endpoint = EMPTY;
  
      @Override
      public void execute(NodeProbe probe)
      {
          if (endpoint.isEmpty())
              probe.truncateHints();
          else
              probe.truncateHints(endpoint);
      }
  }
  