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annotate src/main/java/com/glavsoft/rfb/protocol/state/ProtocolState.java @ 52:472a9bcacb21 draft default tip

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TightVNC 2.7.1.0
author you@cr.ie.u-ryukyu.ac.jp
date Wed, 07 Aug 2013 19:01:17 +0900
parents 4689cc86d6cb
children
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472a9bcacb21 TightVNC 2.7.1.0
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1 // Copyright (C) 2010, 2011, 2012, 2013 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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27 import com.glavsoft.exceptions.*;
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28 import com.glavsoft.rfb.protocol.ProtocolContext;
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29 import com.glavsoft.transport.Reader;
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30 import com.glavsoft.transport.Writer;
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31
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32 abstract public class ProtocolState {
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33 protected ProtocolContext context;
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34 protected Reader reader;
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35 protected Writer writer;
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36
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37 public ProtocolState(ProtocolContext context) {
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38 this.context = context;
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39 this.reader = context.getReader();
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40 this.writer = context.getWriter();
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41 }
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42
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43 /**
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44 * Change state of finite machine.
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45 *
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46 * @param state state, the Finite Machine will switched to
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47 */
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48 protected void changeStateTo(ProtocolState state) {
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49 context.changeStateTo(state);
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50 }
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51
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52 /**
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53 * Carry out next step of protocol flow.
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54 *
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55 * @return false when no next protocol steps availabe, true - when need to continue
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56 */
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57 abstract public boolean next() throws UnsupportedProtocolVersionException, TransportException,
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58 UnsupportedSecurityTypeException, AuthenticationFailedException, FatalException;
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59
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60 }