1 | package org.greenstone.gatherer.cdm;
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2 |
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3 | import java.awt.*;
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4 | import java.awt.event.*;
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5 | import javax.swing.*;
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6 | import java.util.EventListener;
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7 | import javax.swing.event.EventListenerList;
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8 |
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9 | import org.greenstone.gatherer.Configuration;
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10 | import org.greenstone.gatherer.Dictionary;
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11 | import org.greenstone.gatherer.Gatherer;
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12 | import org.greenstone.gatherer.gui.GLIButton;
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13 | import org.greenstone.gatherer.gui.ModalDialog;
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14 |
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15 | public class DatabaseTypeManager {
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16 |
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17 | /** The size of this new collection dialog box. */
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18 | static private Dimension DIALOG_SIZE = new Dimension(600, 280);
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19 |
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20 | static final public String DATABASE_TYPE_GDBM = "gdbm";
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21 | static final public String DATABASE_TYPE_JDBM = "jdbm";
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22 | static final public String DATABASE_TYPE_SQLITE = "sqlite";
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23 |
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24 | static final public String DATABASE_TYPE_GDBM_STR = "GDBM";
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25 | static final public String DATABASE_TYPE_JDBM_STR = "JDBM";
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26 | static final public String DATABASE_TYPE_SQLITE_STR = "SQLITE";
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27 |
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28 | static final public String[] DATABASE_TYPES = { DATABASE_TYPE_GDBM, DATABASE_TYPE_JDBM, DATABASE_TYPE_SQLITE };
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29 |
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30 | private EventListenerList listeners = null;
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31 | /** the databasetype element in the config file - uses CollectionMeta */
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32 | public CollectionMeta database_type_meta = null;
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33 | private Control controls = null;
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34 |
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35 | protected DatabaseTypeManager manager = null;
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36 | public DatabaseTypeManager() {
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37 | database_type_meta = new CollectionMeta(CollectionDesignManager.collect_config.getDatabaseType());
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38 | if (getDatabaseType().equals("")) {
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39 | database_type_meta.setValue(DATABASE_TYPE_GDBM);
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40 | // must have an old collection, assume MG
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41 | }
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42 | listeners = new EventListenerList();
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43 | manager = this;
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44 | }
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45 |
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46 | public void addDatabaseTypeListener(DatabaseTypeListener listener) {
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47 | listeners.add(DatabaseTypeListener.class, listener);
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48 | }
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49 |
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50 | protected void notifyListeners(String new_database_type) {
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51 | Object[] concerned = listeners.getListenerList();
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52 | for(int i = 0; i < concerned.length ; i++) {
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53 | if(concerned[i] == DatabaseTypeListener.class) {
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54 | ((DatabaseTypeListener)concerned[i+1]).databaseTypeChanged(new_database_type);
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55 | }
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56 | }
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57 | concerned = null;
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58 | }
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59 |
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60 |
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61 | public void promptForNewDatabaseType() {
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62 |
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63 | DatabaseTypePrompt dtp = new DatabaseTypePrompt(database_type_meta.getValue(CollectionMeta.TEXT));
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64 | }
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65 |
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66 | public boolean isGDBM () {
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67 |
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68 | return getDatabaseType().equals(DATABASE_TYPE_GDBM);
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69 | }
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70 | public boolean isJDBM () {
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71 |
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72 | return getDatabaseType().equals(DATABASE_TYPE_JDBM);
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73 | }
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74 | public boolean isSQLITE () {
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75 |
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76 | return getDatabaseType().equals(DATABASE_TYPE_SQLITE);
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77 | }
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78 |
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79 |
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80 | public String getDatabaseType() {
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81 | return database_type_meta.getValue(CollectionMeta.TEXT);
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82 | }
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83 |
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84 | public Control getControls() {
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85 | if (controls == null) {
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86 | controls = new DatabaseTypeControl();
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87 | }
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88 | return controls;
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89 | }
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90 |
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91 | public interface DatabaseTypeListener
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92 | extends EventListener {
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93 | public void databaseTypeChanged(String new_database_type);
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94 | }
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95 |
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96 | private class DatabaseTypeControl
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97 | extends JPanel
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98 | implements Control, DatabaseTypeListener {
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99 |
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100 | JLabel label = null;
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101 | JButton change_button = null;
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102 |
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103 | public DatabaseTypeControl() {
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104 | super();
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105 | this.setComponentOrientation(Dictionary.getOrientation());
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106 |
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107 | JPanel spacer_panel = new JPanel();
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108 | spacer_panel.setComponentOrientation(Dictionary.getOrientation());
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109 |
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110 | JPanel main_panel = new JPanel();
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111 | main_panel.setComponentOrientation(Dictionary.getOrientation());
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112 | /* may be CDM.DatabaseTypeManager.gdbm, CDM.DatabaseTypeManager.jdbm, CDM.DatabaseTypeManager.sqlite */
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113 | label = new JLabel(Dictionary.get("CDM.DatabaseTypeManager.Current_Type", getDatabaseTypeString(getDatabaseType())));
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114 | label.setComponentOrientation(Dictionary.getOrientation());
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115 |
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116 | change_button = new GLIButton(Dictionary.get("CDM.DatabaseTypeManager.Change"), Dictionary.get("CDM.DatabaseTypeManager.Change_Tooltip"));
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117 |
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118 | change_button.addActionListener(new ActionListener() {
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119 | public void actionPerformed(ActionEvent event) {
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120 | promptForNewDatabaseType();
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121 | }
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122 | });
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123 |
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124 | main_panel.setLayout(new BorderLayout(10,10));
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125 | main_panel.add(label, BorderLayout.CENTER);
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126 | main_panel.add(change_button, BorderLayout.LINE_END);
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127 |
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128 | setBorder(BorderFactory.createEmptyBorder(0,5,0,0));
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129 | setLayout(new BorderLayout());
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130 | add(spacer_panel, BorderLayout.CENTER);
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131 | add(main_panel, BorderLayout.LINE_END);
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132 |
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133 | manager.addDatabaseTypeListener(this);
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134 | }
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135 |
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136 | public void loseFocus() {}
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137 | public void gainFocus() {}
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138 | public void destroy() {}
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139 |
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140 | private String getDatabaseTypeString(String database_type) {
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141 | if (database_type.equals(DATABASE_TYPE_GDBM)) {
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142 | return DATABASE_TYPE_GDBM_STR;
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143 | }
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144 | if (database_type.equals(DATABASE_TYPE_JDBM)) {
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145 | return DATABASE_TYPE_JDBM_STR;
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146 | }
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147 | if (database_type.equals(DATABASE_TYPE_SQLITE)) {
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148 | return DATABASE_TYPE_SQLITE_STR;
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149 | }
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150 | return "";
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151 | }
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152 |
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153 |
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154 | public void databaseTypeChanged(String new_database_type) {
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155 | label.setText(Dictionary.get("CDM.DatabaseTypeManager.Current_Type", getDatabaseTypeString(new_database_type)));
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156 | }
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157 | }
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158 |
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159 | private class DatabaseTypePrompt
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160 | extends ModalDialog {
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161 |
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162 | private JDialog self;
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163 |
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164 | private JRadioButton gdbm_button = null;
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165 | private JRadioButton jdbm_button = null;
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166 | private JRadioButton sqlite_button = null;
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167 |
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168 | private JTextArea description_textarea = null;
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169 |
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170 | JButton ok_button = null;
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171 | JButton cancel_button = null;
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172 |
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173 | public DatabaseTypePrompt(String current_database_type) {
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174 | super(Gatherer.g_man, true);
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175 | this.self = this;
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176 | setSize(DIALOG_SIZE);
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177 | setTitle(Dictionary.get("CDM.DatabaseTypeManager.Title"));
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178 | this.setComponentOrientation(Dictionary.getOrientation());
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179 | gdbm_button = new JRadioButton(DATABASE_TYPE_GDBM_STR);
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180 | gdbm_button.setComponentOrientation(Dictionary.getOrientation());
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181 | gdbm_button.setActionCommand(DATABASE_TYPE_GDBM);
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182 | jdbm_button = new JRadioButton(DATABASE_TYPE_JDBM_STR);
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183 | jdbm_button.setComponentOrientation(Dictionary.getOrientation());
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184 | jdbm_button.setActionCommand(DATABASE_TYPE_JDBM);
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185 | sqlite_button = new JRadioButton(DATABASE_TYPE_SQLITE_STR);
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186 | sqlite_button.setComponentOrientation(Dictionary.getOrientation());
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187 | sqlite_button.setActionCommand(DATABASE_TYPE_SQLITE);
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188 |
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189 | DatabaseTypeButtonListener dtbl = new DatabaseTypeButtonListener();
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190 | gdbm_button.addActionListener(dtbl);
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191 | jdbm_button.addActionListener(dtbl);
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192 | sqlite_button.addActionListener(dtbl);
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193 |
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194 | ButtonGroup database_type_group = new ButtonGroup();
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195 | database_type_group.add(gdbm_button);
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196 | database_type_group.add(jdbm_button);
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197 | database_type_group.add(sqlite_button);
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198 |
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199 | if (current_database_type != null) {
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200 | if (current_database_type.equals(DATABASE_TYPE_GDBM)) {
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201 | gdbm_button.setSelected(true);
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202 | } else if (current_database_type.equals(DATABASE_TYPE_JDBM)) {
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203 | jdbm_button.setSelected(true);
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204 | } else if (current_database_type.equals(DATABASE_TYPE_SQLITE)) {
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205 | sqlite_button.setSelected(true);
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206 | }
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207 | }
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208 |
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209 | JPanel radio_pane = new JPanel();
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210 | radio_pane.setLayout(new GridLayout(3,1));
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211 | radio_pane.add(gdbm_button);
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212 | radio_pane.add(jdbm_button);
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213 | radio_pane.add(sqlite_button);
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214 | radio_pane.setComponentOrientation(Dictionary.getOrientation());
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215 |
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216 | description_textarea = new JTextArea();
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217 | description_textarea.setBorder(BorderFactory.createEmptyBorder(5,5,5,5));
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218 | /* may be CDM.DatabaseTypeManager.gdbm_Description, CDM.DatabaseTypeManager.jdbm_Description, CDM.DatabaseTypeManager.sqlite_Description */
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219 | description_textarea.setText(Dictionary.get("CDM.DatabaseTypeManager."+current_database_type+"_Description"));
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220 | description_textarea.setLineWrap(true);
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221 | description_textarea.setWrapStyleWord(true);
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222 | description_textarea.setComponentOrientation(Dictionary.getOrientation());
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223 |
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224 | cancel_button = new GLIButton(Dictionary.get("General.Cancel"), Dictionary.get("General.Cancel_Tooltip"));
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225 |
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226 | cancel_button.addActionListener(new ActionListener() {
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227 | public void actionPerformed(ActionEvent event) {
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228 | self.dispose();
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229 | }
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230 | });
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231 |
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232 | ok_button = new GLIButton(Dictionary.get("General.OK"), Dictionary.get("General.OK_Tooltip"));
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233 |
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234 | ok_button.addActionListener(new ActionListener() {
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235 | public void actionPerformed(ActionEvent event) {
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236 | String new_database_type = DATABASE_TYPE_GDBM;
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237 | if (gdbm_button.isSelected()) {
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238 | new_database_type = DATABASE_TYPE_GDBM;
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239 | } else if (jdbm_button.isSelected()) {
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240 | new_database_type = DATABASE_TYPE_JDBM;
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241 | } else if (sqlite_button.isSelected()) {
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242 | new_database_type = DATABASE_TYPE_SQLITE;
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243 | }
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244 | if (!database_type_meta.getValue(CollectionMeta.TEXT).equals(new_database_type)) {
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245 | manager.notifyListeners(new_database_type);
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246 | database_type_meta.setValue(new_database_type);
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247 | }
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248 | self.dispose();
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249 | }
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250 | });
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251 | // tell the CDM that we have (possibly) changed
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252 | ok_button.addActionListener(CollectionDesignManager.databasecol_change_listener);
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253 | JPanel button_pane = new JPanel();
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254 | button_pane.setLayout(new GridLayout(1,2));
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255 | button_pane.add(ok_button);
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256 | button_pane.add(cancel_button);
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257 | button_pane.setComponentOrientation(Dictionary.getOrientation());
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258 |
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259 | JPanel content_pane = (JPanel) getContentPane();
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260 | content_pane.setOpaque(true);
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261 | content_pane.setLayout(new BorderLayout());
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262 | content_pane.add(radio_pane, BorderLayout.NORTH);
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263 | content_pane.add(new JScrollPane(description_textarea), BorderLayout.CENTER);
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264 | content_pane.add(button_pane, BorderLayout.SOUTH);
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265 | content_pane.setComponentOrientation(Dictionary.getOrientation());
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266 |
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267 | // Center and display.
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268 | Dimension screen_size = Configuration.screen_size;
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269 | this.setLocation((screen_size.width - DIALOG_SIZE.width) / 2, (screen_size.height - DIALOG_SIZE.height) / 2);
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270 | this.setVisible(true); // blocks until the dialog is killed
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271 |
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272 | }
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273 |
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274 | public void loseFocus() {
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275 |
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276 | }
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277 | public void gainFocus() {
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278 |
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279 | }
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280 | public void destroy() {
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281 |
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282 | }
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283 |
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284 | private class DatabaseTypeButtonListener
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285 | implements ActionListener {
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286 |
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287 | public void actionPerformed(ActionEvent event) {
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288 | description_textarea.setText(Dictionary.get("CDM.DatabaseTypeManager."+event.getActionCommand()+"_Description"));
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289 | }
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290 | }
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291 | }
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292 | }
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