1 | /**
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2 | *#########################################################################
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3 | *
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4 | * A component of the Gatherer application, part of the Greenstone digital
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5 | * library suite from the New Zealand Digital Library Project at the
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6 | * University of Waikato, New Zealand.
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7 | *
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8 | * Author: John Thompson, Greenstone Digital Library, University of Waikato
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9 | *
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10 | * Copyright (C) 1999 New Zealand Digital Library Project
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11 | *
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12 | * This program is free software; you can redistribute it and/or modify
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13 | * it under the terms of the GNU General Public License as published by
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14 | * the Free Software Foundation; either version 2 of the License, or
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15 | * (at your option) any later version.
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16 | *
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17 | * This program is distributed in the hope that it will be useful,
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18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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20 | * GNU General Public License for more details.
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21 | *
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22 | * You should have received a copy of the GNU General Public License
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23 | * along with this program; if not, write to the Free Software
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24 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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25 | *########################################################################
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26 | */
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27 | package org.greenstone.gatherer.cdm;
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28 |
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29 | import java.awt.*;
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30 | import java.awt.event.*;
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31 | import java.io.*;
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32 | import javax.swing.*;
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33 | import javax.swing.event.*;
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34 | import org.apache.xerces.parsers.*;
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35 | import org.greenstone.gatherer.Configuration;
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36 | import org.greenstone.gatherer.DebugStream;
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37 | import org.greenstone.gatherer.Gatherer;
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38 | import org.greenstone.gatherer.LocalLibraryServer;
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39 | import org.greenstone.gatherer.remote.RemoteGreenstoneServer;
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40 | import org.greenstone.gatherer.util.Utility;
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41 | import org.greenstone.gatherer.util.ZipTools;
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42 | import org.w3c.dom.*;
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43 | import org.xml.sax.*;
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44 |
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45 | /** This manager provides access to submanagers, which in turn provide tools for the designing of Greenstone collections via the information stored in etc/collect.cfg. This class acts as a hub for the managers that handle specific parts of the configuration such as classifiers, format strings and language settings.
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46 | * @author John Thompson, Greenstone Digital Library, University of Waikato
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47 | * @version 2.3d
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48 | */
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49 | public class CollectionDesignManager {
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50 | /** This listener listens for any event on any of the components in any of the sub-views, and marks the collection as needing saving if any change occurs. */
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51 | static public CDMChangeListener change_listener;
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52 | /** These listeners listen to changes in the Design mode so as to allow incremental building */
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53 | static public DesignChangeListener all_change_listener;
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54 | static public DesignChangeListener buildcol_change_listener;
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55 | static public DesignChangeListener collect_cfg_change_listener;
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56 | /** A list of classifiers to use at build time. */
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57 | static public ClassifierManager classifier_manager;
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58 | /** The CollectionConfiguration object on which this CDM will be based. */
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59 | static public CollectionConfiguration collect_config;
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60 | /** A manager of collection level metadata. */
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61 | static public CollectionMetaManager collectionmeta_manager;
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62 | /** A list of formating strings to use at build time. */
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63 | static public FormatManager format_manager;
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64 | /** A manager of general options */
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65 | static public GeneralManager general_manager;
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66 | /** List of indexes to be built, and the default index.
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67 | also handles build type and levels */
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68 | static public IndexingManager index_manager;
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69 | /** Contains instructions dealing with the collection language. */
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70 | static public LanguageManager language_manager;
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71 | /** Handling writing extra.dm file */
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72 | static public MacrosManager macros_manager;
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73 | /** A simple manager for the visual review of metadata sets. */
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74 | static public MetadataSetView metadataset_view;
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75 | /** A list of plugins to use at build time. */
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76 | static public PluginManager plugin_manager;
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77 | /** a manager of searching metadata such as index names*/
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78 | static public SearchMetadataManager searchmetadata_manager;
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79 | /** Contains: A list of subcollections, (defined on metadatadata), a list of which subcollection indexes to build and the default subcollection index. */
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80 | static public SubcollectionManager subcollection_manager;
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81 |
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82 | static public SubcollectionIndexManager subcollectionindex_manager;
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83 | /** A supercollection command allows a single search to be conducted across several collections. It is a very basic command and so avoids all the crazy model stuff that exists in most of the design managers. */
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84 | static public SuperCollectionManager supercollection_manager; // Just cause I could ;p
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85 | /** The text translation manager. */
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86 | static public TranslationView translation_manager;
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87 | /** These mark what needs to happen when building a collection where ONLY design options have been changed.
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88 | The build requirements of the higher numbers must include doing everything from the lower numbers. */
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89 | static final public int ALL = 3;
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90 | static final public int BUILDCOL = 2;
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91 | static final public int UPDATE_COLLECT_CFG = 1;
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92 | static final public int NOTHING = 0;
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93 | static private int rebuildTypeRequired = NOTHING; //Rebuild type required if only design options have changed
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94 | static public boolean update_collect_cfg_required = false;
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95 |
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96 | /** Constructor. Loads a certain collection configuration file, which is parsed into a DOM. This model is then registered with the command information managers, each of whom knows how to, and provides controls to, alter certain commands.
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97 | * @param collect_config_file the File representing a collection configuration file either in its text (G2) or xml (G3) form
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98 | */
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99 | public CollectionDesignManager(File collect_config_file) {
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100 | DebugStream.println("Initializaing CollectionDesignModule.");
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101 | change_listener = new CDMChangeListener();
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102 | all_change_listener = new DesignChangeListener(ALL);
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103 | buildcol_change_listener = new DesignChangeListener(BUILDCOL);
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104 | collect_cfg_change_listener = new DesignChangeListener(UPDATE_COLLECT_CFG);
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105 | // Parse the collection configuration
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106 | collect_config = new CollectionConfiguration(collect_config_file);
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107 | if (DebugStream.isDebuggingEnabled()) {
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108 | collect_config.display();
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109 | }
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110 | loadDesignDetails();
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111 | DebugStream.println("CollectionDesignModule loaded.");
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112 | }
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113 |
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114 | /** Reloads the various managers to ensure they have built themselves from the latest details available in the collection configuration class
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115 | * @see org.greenstone.gatherer.cdm.ClassifierManager
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116 | * @see org.greenstone.gatherer.cdm.CollectionMetaManager
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117 | * @see org.greenstone.gatherer.cdm.FormatManager
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118 | * @see org.greenstone.gatherer.cdm.GeneralManager
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119 | * @see org.greenstone.gatherer.cdm.IndexManager
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120 | * @see org.greenstone.gatherer.cdm.LanguageManager
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121 | * @see org.greenstone.gatherer.cdm.MetadataSetView
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122 | * @see org.greenstone.gatherer.cdm.PluginManager
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123 | * @see org.greenstone.gatherer.cdm.SubcollectionIndexManager
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124 | * @see org.greenstone.gatherer.cdm.SubcollectionManager
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125 | * @see org.greenstone.gatherer.cdm.SuperCollectionManager
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126 | * @see org.greenstone.gatherer.cdm.TranslationView
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127 | */
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128 | private void loadDesignDetails() {
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129 | // Create the command information managers, registering the config file with each as necessary
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130 | language_manager = new LanguageManager(collect_config.getLanguages());
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131 | collectionmeta_manager = new CollectionMetaManager();
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132 | classifier_manager = new ClassifierManager();
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133 | general_manager = new GeneralManager();
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134 | macros_manager = new MacrosManager();
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135 | index_manager = new IndexingManager();
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136 | metadataset_view = new MetadataSetView();
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137 | plugin_manager = new PluginManager();
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138 | plugin_manager.placeSeparator();
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139 | subcollection_manager = new SubcollectionManager();
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140 | subcollectionindex_manager = new SubcollectionIndexManager(collect_config.getSubIndexes());
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141 | supercollection_manager = new SuperCollectionManager(collect_config.getSuperCollection());
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142 | searchmetadata_manager = new SearchMetadataManager();
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143 | translation_manager = new TranslationView();
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144 | format_manager = new FormatManager(); // Parse formats at the very end, given that they depend upon several other managers to appear properly.
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145 | }
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146 |
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147 | /** This method deconstructs each of the managers, causing them to dispose of their controls.
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148 | */
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149 | public void destroy() {
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150 | // Remove references from persistant listeners.
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151 | classifier_manager.destroy();
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152 | classifier_manager = null;
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153 | searchmetadata_manager.destroy();
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154 | searchmetadata_manager = null;
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155 | format_manager.destroy();
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156 | format_manager = null;
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157 | general_manager.destroy();
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158 | general_manager = null;
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159 | index_manager.destroy();
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160 | index_manager = null;
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161 | language_manager.destroy();
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162 | language_manager = null;
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163 | metadataset_view.destroy();
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164 | metadataset_view = null;
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165 | plugin_manager.destroy();
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166 | plugin_manager = null;
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167 | subcollection_manager.destroy();
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168 | subcollection_manager = null;
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169 | supercollection_manager.destroy();
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170 | supercollection_manager = null;
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171 | translation_manager.destroy();
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172 | translation_manager = null;
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173 | }
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174 |
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175 | /** Called when the detail mode has changed which in turn may cause several design elements to be available/hidden
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176 | * @param mode the new mode as an int
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177 | */
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178 | public void modeChanged(int mode) {
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179 | plugin_manager.modeChanged(mode);
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180 | classifier_manager.modeChanged(mode);
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181 | subcollection_manager.modeChanged(mode);
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182 | supercollection_manager.modeChanged(mode);
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183 | format_manager.modeChanged(mode);
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184 | index_manager.modeChanged(mode);
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185 | translation_manager.modeChanged(mode);
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186 | metadataset_view.modeChanged(mode);
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187 | general_manager.modeChanged(mode);
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188 | language_manager.modeChanged(mode);
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189 | searchmetadata_manager.modeChanged(mode);
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190 | }
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191 |
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192 | /** The cdm is considered to be ready if the collect.cfg file was found and parsed and the collection title is not error.
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193 | * @return true if the collection is ready, false otherwise
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194 | */
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195 | public boolean ready() {
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196 | return collect_config.ready();
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197 | }
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198 |
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199 |
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200 | public void save() {
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201 | save(false);
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202 | }
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203 | /** Cause the current collection configuration to be written out to disk.
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204 | */
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205 | public void save(boolean force_save)
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206 | {
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207 | general_manager.loseFocus();
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208 | if (!update_collect_cfg_required && !force_save) {
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209 | DebugStream.println("Asked to save the config file, but don't need to");
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210 | return;
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211 | }
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212 |
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213 | DebugStream.println("Saving the collection config file");
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214 | // Release collection as necessary
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215 | String collection_name = Gatherer.c_man.getCollection().getName();
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216 | boolean collection_released = false;
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217 |
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218 | if (Gatherer.c_man.built() && LocalLibraryServer.isRunning() == true) {
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219 | // Release the collection
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220 | LocalLibraryServer.releaseCollection(collection_name);
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221 | collection_released = true;
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222 | }
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223 |
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224 | collect_config.save();
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225 |
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226 | // Read collection
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227 | if (collection_released) {
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228 | // Now re-add collection to server to force format commands to be processed
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229 | LocalLibraryServer.addCollection(collection_name);
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230 | }
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231 |
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232 | // Unset formats changed
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233 | update_collect_cfg_required = false;
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234 |
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235 | }
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236 |
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237 |
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238 | static public Document XMLStringToDOM(StringBuffer xml, String form)
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239 | {
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240 | Document document = null;
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241 |
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242 | try {
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243 | // Read the xml from the piped input stream.
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244 | StringReader xml_sr = new StringReader(xml.toString());
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245 | InputSource source = new InputSource(xml_sr);
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246 | DOMParser parser = new DOMParser();
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247 | parser.parse(source);
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248 | document = parser.getDocument();
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249 | }
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250 | catch (Exception error) {
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251 | System.err.println("Failed when trying to parse XML stream ");
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252 | error.printStackTrace();
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253 | }
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254 |
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255 | return document;
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256 | }
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257 |
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258 | public static int getRebuildTypeRequired() {
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259 | return rebuildTypeRequired;
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260 | }
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261 | public static void resetRebuildTypeRequired() {
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262 | setRebuildTypeRequired(NOTHING);
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263 | }
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264 | public static void setRebuildTypeRequired(int number) {
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265 | rebuildTypeRequired = number;
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266 | }
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267 |
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268 | /**
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269 | * What exactly does this do?
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270 | */
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271 | private class CDMChangeListener
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272 | implements ActionListener, DocumentListener {
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273 |
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274 | /** Gives notification that an event has happened */
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275 | public void actionPerformed(ActionEvent event) {
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276 | Gatherer.c_man.getCollection().setSaved(false);
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277 | }
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278 |
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279 | /** Gives notification that an attribute or set of attributes changed. */
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280 | public void changedUpdate(DocumentEvent e) {
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281 | Gatherer.c_man.getCollection().setSaved(false);
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282 | }
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283 |
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284 | /** Gives notification that there was an insert into the document. */
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285 | public void insertUpdate(DocumentEvent e) {
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286 | Gatherer.c_man.getCollection().setSaved(false);
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287 | }
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288 |
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289 | /** Gives notification that a portion of the document has been removed. */
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290 | public void removeUpdate(DocumentEvent e) {
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291 | Gatherer.c_man.getCollection().setSaved(false);
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292 | }
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293 | }
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294 | }
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