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1   /*****************************************************************
2    * Licensed to the Apache Software Foundation (ASF) under one   *
3    * or more contributor license agreements.  See the NOTICE file *
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7    * "License"); you may not use this file except in compliance   *
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17   * under the License.                                           *
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19  
20  package org.apache.james.smtpserver;
21  
22  import org.apache.james.util.mail.dsn.DSNStatus;
23  
24  /***
25    * Handles NOOP command
26    */
27  public class NoopCmdHandler implements CommandHandler {
28  
29      /***
30       * The name of the command handled by the command handler
31       */
32      private final static String COMMAND_NAME = "NOOP";
33  
34      /***
35       * Handler method called upon receipt of a NOOP command.
36       * Just sends back an OK and logs the command.
37       *
38       * @see org.apache.james.smtpserver.CommandHandler#onCommand(SMTPSession)
39       */
40      public void onCommand(SMTPSession session) {
41          String responseString = "250 "+DSNStatus.getStatus(DSNStatus.SUCCESS,DSNStatus.UNDEFINED_STATUS)+" OK";
42          session.writeResponse(responseString);
43      }
44  
45  
46  }