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