1 | /**
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2 | *############################################################################
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3 | * A component of the Greenstone Librarian Interface, part of the Greenstone
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4 | * digital library suite from the New Zealand Digital Library Project at the
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5 | * University of Waikato, New Zealand.
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6 | *
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7 | * Author: Michael Dewsnip, NZDL Project, University of Waikato, NZ
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8 | *
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9 | * Copyright (C) 2004 New Zealand Digital Library Project
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10 | *
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11 | * This program is free software; you can redistribute it and/or modify
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12 | * it under the terms of the GNU General Public License as published by
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13 | * the Free Software Foundation; either version 2 of the License, or
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14 | * (at your option) any later version.
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15 | *
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16 | * This program is distributed in the hope that it will be useful,
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17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 | * GNU General Public License for more details.
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20 | *
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21 | * You should have received a copy of the GNU General Public License
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22 | * along with this program; if not, write to the Free Software
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23 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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24 | *############################################################################
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25 | */
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26 |
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27 | package org.greenstone.gatherer.metadata;
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28 |
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29 |
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30 | import java.awt.*;
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31 | import java.io.*;
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32 | import java.util.*;
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33 | import javax.swing.*;
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34 | import javax.swing.table.*;
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35 | import org.greenstone.gatherer.Configuration;
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36 | import org.greenstone.gatherer.Gatherer;
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37 | import org.greenstone.gatherer.file.FileNode;
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38 |
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39 |
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40 | public class MetadataAuditTableModel
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41 | extends AbstractTableModel
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42 | {
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43 | /** The FileNodes this model is built for */
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44 | private FileNode[] file_nodes = null;
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45 | /** The list of MetadataElements in the table (columns) */
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46 | private ArrayList metadata_elements = new ArrayList();
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47 | /** The list of MetadataAuditTableEntries in the table (rows) */
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48 | private ArrayList metadata_audit_table_entries = new ArrayList();
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49 |
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50 |
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51 | /** Returns the number of columns in this table. */
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52 | public int getColumnCount()
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53 | {
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54 | return metadata_elements.size();
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55 | }
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56 |
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57 |
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58 | /** Retrieves the name of the specified column. */
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59 | public String getColumnName(int col)
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60 | {
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61 | return metadata_elements.get(col).toString();
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62 | }
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63 |
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64 |
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65 | /** Returns the number of rows in this table. */
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66 | public int getRowCount()
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67 | {
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68 | return metadata_audit_table_entries.size();
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69 | }
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70 |
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71 |
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72 | /** Returns the cell value at a given row and column as an Object. */
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73 | public Object getValueAt(int row, int col)
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74 | {
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75 | // Check values are reasonable
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76 | if (row < 0 || row >= metadata_audit_table_entries.size() || col < 0 || col >= metadata_elements.size()) {
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77 | return null;
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78 | }
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79 |
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80 | MetadataAuditTableEntry metadata_audit_table_entry = (MetadataAuditTableEntry) metadata_audit_table_entries.get(row);
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81 | return metadata_audit_table_entry.getMetadataValueTreeNode(col);
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82 | }
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83 |
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84 |
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85 | public void rebuild(FileNode[] file_nodes)
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86 | {
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87 | metadata_elements = MetadataSetManager.getEveryMetadataSetElement();
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88 | metadata_audit_table_entries.clear();
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89 |
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90 | this.file_nodes = file_nodes;
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91 | if (file_nodes != null && file_nodes.length > 0) {
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92 | // Create model builder
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93 | MetadataAuditTableModelBuilder builder = new MetadataAuditTableModelBuilder();
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94 | builder.run();
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95 | }
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96 | }
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97 |
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98 |
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99 | private class MetadataAuditTableModelBuilder
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100 | {
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101 | // Build a list of MetadataAuditTableEntries that represent the metadata asssigned to the selected files
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102 | public void run()
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103 | {
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104 | // Process each of the selected files in turn
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105 | for (int i = 0; i < file_nodes.length; i++) {
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106 | File current_file = file_nodes[i].getFile();
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107 |
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108 | // Get the metadata assigned to this file
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109 | ArrayList current_file_metadata = MetadataXMLFileManager.getMetadataAssignedToFile(current_file);
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110 |
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111 | // Get the extracted metadata for this file, if desired
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112 | if (Gatherer.config.get("general.view_extracted_metadata", Configuration.COLLECTION_SPECIFIC) == true) {
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113 | current_file_metadata.addAll(DocXMLFileManager.getMetadataExtractedFromFile(current_file));
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114 | }
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115 |
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116 | MetadataAuditTableEntry metadata_audit_table_entry = new MetadataAuditTableEntry(current_file, current_file_metadata);
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117 | metadata_audit_table_entries.add(metadata_audit_table_entry);
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118 | }
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119 | }
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120 | }
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121 |
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122 |
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123 | /** This class represents one (file, metadata) pair */
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124 | private class MetadataAuditTableEntry
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125 | {
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126 | private File file = null;
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127 | private MetadataValue[] metadata_values = null;
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128 |
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129 |
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130 | public MetadataAuditTableEntry(File file, ArrayList metadata_values_list)
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131 | {
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132 | this.file = file;
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133 |
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134 | metadata_values = new MetadataValue[metadata_elements.size()];
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135 | for (int i = 0; i < metadata_values_list.size(); i++) {
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136 | MetadataValue metadata_value = (MetadataValue) metadata_values_list.get(i);
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137 | MetadataElement metadata_element = metadata_value.getMetadataElement();
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138 |
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139 | // Find the right column to put the value in
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140 | for (int j = 0; j < metadata_elements.size(); j++) {
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141 | if (metadata_element.equals(metadata_elements.get(j))) {
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142 | metadata_values[j] = metadata_value;
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143 | break;
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144 | }
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145 | }
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146 | }
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147 | }
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148 |
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149 |
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150 | public MetadataValueTreeNode getMetadataValueTreeNode(int col)
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151 | {
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152 | if (metadata_values[col] == null) {
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153 | return null;
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154 | }
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155 |
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156 | return metadata_values[col].getMetadataValueTreeNode();
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157 | }
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158 | }
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159 | }
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