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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 *
4    * distributed with this work for additional information        *
5    * regarding copyright ownership.  The ASF licenses this file   *
6    * to you under the Apache License, Version 2.0 (the            *
7    * "License"); you may not use this file except in compliance   *
8    * with the License.  You may obtain a copy of the License at   *
9    *                                                              *
10   *   http://www.apache.org/licenses/LICENSE-2.0                 *
11   *                                                              *
12   * Unless required by applicable law or agreed to in writing,   *
13   * software distributed under the License is distributed on an  *
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY       *
15   * KIND, either express or implied.  See the License for the    *
16   * specific language governing permissions and limitations      *
17   * under the License.                                           *
18   ****************************************************************/
19  
20  
21  
22  package org.apache.james.smtpserver.core;
23  
24  import java.util.ArrayList;
25  import java.util.Collection;
26  
27  import org.apache.james.dsn.DSNStatus;
28  import org.apache.james.smtpserver.CommandHandler;
29  import org.apache.james.smtpserver.SMTPSession;
30  
31  /**
32    * Command handler for handling VRFY command
33    */
34  public class VrfyCmdHandler implements CommandHandler {
35  
36      private final String COMMAND_NAME = "VRFY";
37  
38      /**
39       * Handler method called upon receipt of a VRFY command.
40       * This method informs the client that the command is
41       * not implemented.
42       *
43       * @see org.apache.james.smtpserver.CommandHandler#onCommand(SMTPSession)
44      **/
45      public void onCommand(SMTPSession session) {
46          String responseString = "502 "+DSNStatus.getStatus(DSNStatus.PERMANENT,DSNStatus.SYSTEM_NOT_CAPABLE)+" VRFY is not supported";
47          session.writeResponse(responseString);
48      }
49      
50      /**
51       * @see org.apache.james.smtpserver.CommandHandler#getImplCommands()
52       */
53      public Collection getImplCommands() {
54          Collection implCommands = new ArrayList();
55          implCommands.add("VRFY");
56          
57          return implCommands;
58      }
59  
60  }