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Java > Open Source Codes > org > apache > commons > net > telnet > TelnetNotificationHandler


1 /*
2  * Copyright 2003-2004 The Apache Software Foundation
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 package org.apache.commons.net.telnet;
17
18 /***
19  * The TelnetNotificationHandler interface can be used to handle
20  * notification of options negotiation commands received on a telnet
21  * session.
22  * <p>
23  * The user can implement this interface and register a
24  * TelnetNotificationHandler by using the registerNotificationHandler()
25  * of TelnetClient to be notified of option negotiation commands.
26  * <p>
27  * <p>
28  * @author Bruno D'Avanzo
29  ***/
30
31 public interface TelnetNotificationHandler
32 {
33     /***
34      * The remote party sent a DO command.
35      ***/
36     public static final int RECEIVED_DO = 1;
37
38     /***
39      * The remote party sent a DONT command.
40      ***/
41     public static final int RECEIVED_DONT = 2;
42
43     /***
44      * The remote party sent a WILL command.
45      ***/
46     public static final int RECEIVED_WILL = 3;
47
48     /***
49      * The remote party sent a WONT command.
50      ***/
51     public static final int RECEIVED_WONT = 4;
52
53     /***
54      * Callback method called when TelnetClient receives an option
55      * negotiation command.
56      * <p>
57      * @param negotiation_code - type of negotiation command received
58      * (RECEIVED_DO, RECEIVED_DONT, RECEIVED_WILL, RECEIVED_WONT)
59      * <p>
60      * @param option_code - code of the option negotiated
61      * <p>
62      ***/
63     public void receivedNegotiation(int negotiation_code, int option_code);
64 }
65
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