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comparison src/main/java/com/glavsoft/rfb/protocol/state/ProtocolState.java @ 0:4689cc86d6cb

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create TreeViewer2 Repository
author Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
date Tue, 03 Jul 2012 13:20:49 +0900
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children 17b702648079
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-1:000000000000 0:4689cc86d6cb
1 // Copyright (C) 2010, 2011 GlavSoft LLC.
2 // All rights reserved.
3 //
4 //-------------------------------------------------------------------------
5 // This file is part of the TightVNC software. Please visit our Web site:
6 //
7 // http://www.tightvnc.com/
8 //
9 // This program is free software; you can redistribute it and/or modify
10 // it under the terms of the GNU General Public License as published by
11 // the Free Software Foundation; either version 2 of the License, or
12 // (at your option) any later version.
13 //
14 // This program is distributed in the hope that it will be useful,
15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 // GNU General Public License for more details.
18 //
19 // You should have received a copy of the GNU General Public License along
20 // with this program; if not, write to the Free Software Foundation, Inc.,
21 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 //-------------------------------------------------------------------------
23 //
24
25 package com.glavsoft.rfb.protocol.state;
26
27 import java.util.logging.Logger;
28
29 import com.glavsoft.exceptions.AuthenticationFailedException;
30 import com.glavsoft.exceptions.FatalException;
31 import com.glavsoft.exceptions.TransportException;
32 import com.glavsoft.exceptions.UnsupportedProtocolVersionException;
33 import com.glavsoft.exceptions.UnsupportedSecurityTypeException;
34 import com.glavsoft.rfb.protocol.ProtocolContext;
35 import com.glavsoft.transport.Reader;
36 import com.glavsoft.transport.Writer;
37
38 abstract public class ProtocolState {
39 protected ProtocolContext context;
40 protected Logger logger;
41 protected Reader reader;
42 protected Writer writer;
43
44 public ProtocolState(ProtocolContext context) {
45 this.context = context;
46 this.logger = context.getLogger();
47 this.reader = context.getReader();
48 this.writer = context.getWriter();
49 }
50
51 /**
52 * Change state of finite machine.
53 *
54 * @param state state, the Finite Machine will switched to
55 */
56 protected void changeStateTo(ProtocolState state) {
57 context.changeStateTo(state);
58 }
59
60 /**
61 * Carry out next step of protocol flow.
62 *
63 * @return false when no next protocol steps availabe, true - when need to continue
64 */
65 abstract public boolean next() throws UnsupportedProtocolVersionException, TransportException,
66 UnsupportedSecurityTypeException, AuthenticationFailedException, FatalException;
67
68 }