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annotate src/viewer_swing/java/com/glavsoft/viewer/ConnectionManager.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
parents
children dca3bd61b830
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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
4689cc86d6cb create TreeViewer2 Repository
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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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Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
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18 //
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19 // You should have received a copy of the GNU General Public License along
4689cc86d6cb create TreeViewer2 Repository
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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.viewer;
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26
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27 import com.glavsoft.rfb.protocol.ProtocolSettings;
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28 import com.glavsoft.viewer.swing.ParametersHandler;
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29 import com.glavsoft.viewer.swing.Utils;
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30 import com.glavsoft.viewer.swing.gui.ConnectionDialog;
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31
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32 import javax.swing.*;
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33 import java.awt.*;
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34 import java.awt.event.WindowListener;
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35 import java.io.IOException;
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36 import java.io.Serializable;
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37 import java.net.Socket;
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38 import java.net.UnknownHostException;
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39
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40
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41 public class ConnectionManager implements Serializable {
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Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
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42 /**
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43 *
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44 */
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45 private static final long serialVersionUID = 1L;
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46 private final WindowListener appWindowListener;
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Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
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47 volatile boolean forceConnectionDialog;
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48 private JFrame containerFrame;
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49 private final boolean isApplet;
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50
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51 public ConnectionManager(WindowListener appWindowListener, boolean isApplet) {
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52 this.appWindowListener = appWindowListener;
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53 this.isApplet = isApplet;
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54 }
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55
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56 public void showReconnectDialog(String title, String message) {
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57 JOptionPane reconnectPane = new JOptionPane(message + "\nTry another connection?",
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58 JOptionPane.QUESTION_MESSAGE, JOptionPane.YES_NO_OPTION);
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59 final JDialog reconnectDialog = reconnectPane.createDialog(containerFrame, title);
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60 reconnectDialog.setModalityType(isApplet ?
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61 Dialog.ModalityType.APPLICATION_MODAL : Dialog.ModalityType.TOOLKIT_MODAL);
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62 try {
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63 reconnectDialog.setAlwaysOnTop(true);
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64 } catch (SecurityException e) { /*nop*/ }
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65 java.util.List<Image> icons = Utils.getIcons();
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66 if (icons.size() != 0) {
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67 reconnectDialog.setIconImages(icons);
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68 }
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69 reconnectDialog.setVisible(true);
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70 if (reconnectPane.getValue() == null ||
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71 (Integer)reconnectPane.getValue() == JOptionPane.NO_OPTION) {
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72 appWindowListener.windowClosing(null);
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73 } else {
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74 forceConnectionDialog = !isApplet;
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75 }
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76 }
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77
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78 public Socket connectToHost(final ParametersHandler.ConnectionParams connectionParams, ProtocolSettings settings) {
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79 Socket socket = null;
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80 ConnectionDialog connectionDialog = null;
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81 boolean wasError = false;
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82 do {
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83 if (forceConnectionDialog || wasError ||
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84 connectionParams.isHostNameEmpty() ||
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85 -1 == connectionParams.portNumber) {
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86 forceConnectionDialog = false;
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87 if (null == connectionDialog) {
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88 connectionDialog = new ConnectionDialog(containerFrame,
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89 appWindowListener, connectionParams.hostName, connectionParams.portNumber,
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90 settings, isApplet);
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91 }
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92 connectionDialog.setVisible(true);
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93 connectionParams.hostName = connectionDialog.getServerNameString();
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94 connectionParams.portNumber = connectionDialog.getPort();
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95 }
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96 Viewer.logger.info("Connecting to host " + connectionParams.hostName + ":" + connectionParams.portNumber);
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97 try {
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98 socket = new Socket(connectionParams.hostName, connectionParams.portNumber);
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99 wasError = false;
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100 } catch (UnknownHostException e) {
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101 Viewer.logger.severe("Unknown host: " + connectionParams.hostName);
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102 showConnectionErrorDialog("Unknown host: '" + connectionParams.hostName + "'");
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103 wasError = true;
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104 } catch (IOException e) {
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105 Viewer.logger.severe("Couldn't connect to: " +
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106 connectionParams.hostName + ":" + connectionParams.portNumber +
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107 ": " + e.getMessage());
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108 showConnectionErrorDialog("Couldn't connect to: '" + connectionParams.hostName +
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109 "'\n" + e.getMessage());
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110 wasError = true;
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111 }
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112 } while (!isApplet && (connectionParams.isHostNameEmpty() || wasError));
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113 if (connectionDialog != null) {
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114 connectionDialog.dispose();
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115 }
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116 return socket;
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117 }
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118
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119 public void showConnectionErrorDialog(final String message) {
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120 JOptionPane errorPane = new JOptionPane(message, JOptionPane.ERROR_MESSAGE);
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121 final JDialog errorDialog = errorPane.createDialog(containerFrame, "Connection error");
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122 errorDialog.setModalityType(isApplet ? Dialog.ModalityType.APPLICATION_MODAL : Dialog.ModalityType.TOOLKIT_MODAL);
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123 try {
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124 errorDialog.setAlwaysOnTop(true);
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125 } catch (SecurityException e) { /*nop*/ }
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126 errorDialog.setVisible(true);
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127 }
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128
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129 public void setContainerFrame(JFrame containerFrame) {
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130 this.containerFrame = containerFrame;
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131 }
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132 }