[8164] | 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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[7822] | 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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[9856] | 36 | import org.greenstone.gatherer.DebugStream;
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[7822] | 37 | import org.greenstone.gatherer.Dictionary;
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| 38 | import org.greenstone.gatherer.Gatherer;
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[8783] | 39 | import org.greenstone.gatherer.collection.CollectionTreeNode;
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[7822] | 40 | import org.greenstone.gatherer.gui.WarningDialog;
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| 41 |
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| 42 |
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| 43 | public class MetadataValueTableModel
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[7978] | 44 | extends AbstractTableModel
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[7822] | 45 | {
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[12042] | 46 | /** It is not expected that this class will ever be serialized */
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| 47 | private static final long serialVersionUID = 0L;
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| 48 |
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[8783] | 49 | /** The CollectionTreeNodes this model is built for */
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| 50 | private CollectionTreeNode[] file_nodes = null;
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[7978] | 51 | /** The list of MetadataValueTableEntries in the table */
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| 52 | private ArrayList metadata_value_table_entries = new ArrayList();
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[7822] | 53 |
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[8013] | 54 | static final private String[] COLUMN_NAMES = { "", Dictionary.get("Metadata.Element"), Dictionary.get("Metadata.Value") };
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[7822] | 55 |
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| 56 |
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[9856] | 57 | public int addBlankRowForMetadataElement(MetadataElement metadata_element)
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| 58 | {
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| 59 | MetadataValueTableModelBuilder metadata_value_table_model_builder = new MetadataValueTableModelBuilder();
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| 60 | MetadataValue blank_metadata_value = new MetadataValue(metadata_element, new MetadataValueTreeNode(""));
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| 61 | return metadata_value_table_model_builder.insertMetadataValue(blank_metadata_value);
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| 62 | }
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| 63 |
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| 64 |
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| 65 | public int findMetadataValueTableEntryToSelect(MetadataValueTableEntry metadata_value_table_entry)
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| 66 | {
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| 67 | MetadataElement metadata_element = metadata_value_table_entry.getMetadataElement();
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| 68 |
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| 69 | // Find the correct entry to select
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| 70 | for (int i = 0; i < metadata_value_table_entries.size(); i++) {
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| 71 | MetadataValueTableEntry current_metadata_value_table_entry = (MetadataValueTableEntry) metadata_value_table_entries.get(i);
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| 72 | int element_comparison = MetadataSetManager.compareMetadataElements(current_metadata_value_table_entry.getMetadataElement(), metadata_element);
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| 73 |
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| 74 | // We've found the right element, so check if the value already exists
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| 75 | if (element_comparison == 0) {
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| 76 | int value_comparison = current_metadata_value_table_entry.compareTo(metadata_value_table_entry);
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| 77 | if (value_comparison == 0) {
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| 78 | // Entry found!
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| 79 | return i;
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| 80 | }
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| 81 | }
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| 82 |
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| 83 | // We've just gone past the correct entry to select
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| 84 | if (element_comparison > 0) {
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| 85 | return i - 1;
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| 86 | }
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| 87 | }
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| 88 |
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| 89 | // Have to select the last entry
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| 90 | return metadata_value_table_entries.size() - 1;
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| 91 | }
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| 92 |
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| 93 |
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| 94 | public Class getColumnClass(int col)
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| 95 | {
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| 96 | return getValueAt(0, col).getClass();
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| 97 | }
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| 98 |
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| 99 |
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[7978] | 100 | /** Returns the number of columns in this table. */
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| 101 | public int getColumnCount()
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| 102 | {
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| 103 | return COLUMN_NAMES.length;
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| 104 | }
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[7822] | 105 |
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| 106 |
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[7978] | 107 | /** Retrieves the name of the specified column. */
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| 108 | public String getColumnName(int col)
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| 109 | {
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| 110 | return COLUMN_NAMES[col];
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| 111 | }
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[7822] | 112 |
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| 113 |
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[7978] | 114 | /* Called to retrieve the MetadataValueTableEntry at a certain row. Usually caused by the user selecting a row in the table. It is synchronized so that the model doesn't up and change while we're trying to retrieve the indicated element. */
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| 115 | public synchronized MetadataValueTableEntry getMetadataValueTableEntry(int row)
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| 116 | {
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| 117 | if (row >= 0 && row < metadata_value_table_entries.size()) {
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| 118 | return (MetadataValueTableEntry) metadata_value_table_entries.get(row);
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| 119 | }
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[7822] | 120 |
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[7978] | 121 | return null;
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| 122 | }
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[7822] | 123 |
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| 124 |
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[7978] | 125 | /** Returns the number of rows in this table. */
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| 126 | public int getRowCount()
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| 127 | {
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| 128 | return metadata_value_table_entries.size();
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| 129 | }
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[7822] | 130 |
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| 131 |
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[7978] | 132 | /** Returns the cell value at a given row and column as an Object. */
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| 133 | public Object getValueAt(int row, int col)
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| 134 | {
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| 135 | // Check values are reasonable
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| 136 | if (row < 0 || row >= metadata_value_table_entries.size() || col < 0 || col >= COLUMN_NAMES.length) {
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| 137 | return null;
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| 138 | }
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[7822] | 139 |
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[7978] | 140 | MetadataValueTableEntry metadata_value_table_entry = (MetadataValueTableEntry) metadata_value_table_entries.get(row);
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[23433] | 141 |
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| 142 | if(metadata_value_table_entry == null) {
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| 143 | System.err.println("\n@@@@@ MetadataValueTableModel.getValueAt(): metadata_value_table_entry is unexpectedly null!\n");
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| 144 | return null;
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| 145 | }
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| 146 |
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[7978] | 147 | if (col == 0 && metadata_value_table_entry.isInheritedMetadata()) {
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| 148 | return metadata_value_table_entry.getFolderMetadataInheritedFrom();
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| 149 | }
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[7822] | 150 |
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[7978] | 151 | if (col == 1) {
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| 152 | return metadata_value_table_entry.getMetadataElement();
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| 153 | }
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[7822] | 154 |
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[24293] | 155 | if (col == 2)
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| 156 | {
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| 157 | return decodeHTMLEntities(metadata_value_table_entry.getFullValue());
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[7978] | 158 | }
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[7822] | 159 |
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[7978] | 160 | return null;
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[24293] | 161 | }
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| 162 |
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| 163 | public String decodeHTMLEntities(String text)
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| 164 | {
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| 165 | text = text.replace("&#40;", "(");
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| 166 | text = text.replace("&#41;", ")");
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| 167 | text = text.replace("&#44;", ",");
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| 168 | text = text.replace("&#60;", "<");
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| 169 | text = text.replace("&#62;", ">");
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| 170 | text = text.replace("&#91;", "[");
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| 171 | text = text.replace("&#93;", "]");
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| 172 | text = text.replace("&#123;", "{");
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| 173 | text = text.replace("&#125;", "}");
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| 174 | return text;
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| 175 | }
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[7822] | 176 |
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[9856] | 177 | public boolean isCellEditable(int row, int col)
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| 178 | {
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| 179 | // The inherited and element columns are never editable
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| 180 | if (col < 2) {
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| 181 | return false;
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| 182 | }
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| 183 |
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| 184 | // Extracted and inherited metadata is not editable
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| 185 | MetadataValueTableEntry metadata_value_table_entry = (MetadataValueTableEntry) metadata_value_table_entries.get(row);
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| 186 | if (metadata_value_table_entry.getMetadataElement().isExtractedMetadataElement() || metadata_value_table_entry.isInheritedMetadata()) {
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| 187 | return false;
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| 188 | }
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| 189 |
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| 190 | return true;
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| 191 | }
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| 192 |
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| 193 |
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| 194 | /** Determine if the given metadata is common to all selected file nodes. */
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[7978] | 195 | public boolean isCommon(MetadataValueTableEntry metadata_value_table_entry)
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| 196 | {
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| 197 | return (file_nodes != null && metadata_value_table_entry.getOccurrences() == file_nodes.length);
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| 198 | }
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[7822] | 199 |
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| 200 |
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[9856] | 201 | /** Determine if the given metadata is common to all selected file nodes. */
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[7978] | 202 | public boolean isCommon(int row)
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| 203 | {
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| 204 | if (row >= 0 && row < metadata_value_table_entries.size()) {
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| 205 | return isCommon((MetadataValueTableEntry) metadata_value_table_entries.get(row));
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| 206 | }
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[7822] | 207 |
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[7978] | 208 | return false;
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| 209 | }
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[7822] | 210 |
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| 211 |
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[8783] | 212 | public void rebuild(CollectionTreeNode[] file_nodes)
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[7978] | 213 | {
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[8127] | 214 | this.file_nodes = file_nodes;
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[7978] | 215 | metadata_value_table_entries.clear();
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[7822] | 216 |
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[8165] | 217 | // Collection is in a state of flux
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[7978] | 218 | if (!Gatherer.c_man.ready()) {
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| 219 | return;
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| 220 | }
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[7822] | 221 |
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[8127] | 222 | if (file_nodes == null || file_nodes.length == 0) {
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| 223 | return;
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[7978] | 224 | }
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[8127] | 225 |
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| 226 | // Create model builder
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| 227 | MetadataValueTableModelBuilder builder = new MetadataValueTableModelBuilder();
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| 228 | builder.run();
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[7978] | 229 | }
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[7822] | 230 |
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| 231 |
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[9856] | 232 | public void setValueAt(Object new_metadata_value, int row, int col)
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| 233 | {
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| 234 | MetadataValueTableEntry metadata_value_table_entry = getMetadataValueTableEntry(row);
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[23433] | 235 | if(metadata_value_table_entry == null) {
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| 236 | System.err.println("\n@@@@@ MetadataValueTableModel.setValueAt(): metadata_value_table_entry is unexpectedly null!\n");
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| 237 | return;
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| 238 | }
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| 239 |
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[9856] | 240 | // If nothing has changed no action is necessary
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| 241 | String old_metadata_value = metadata_value_table_entry.getFullValue();
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| 242 | if (new_metadata_value.equals(old_metadata_value)) {
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| 243 | return;
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| 244 | }
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| 245 |
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| 246 | // Lock the interface so nothing can be changed while the metadata edit is being processed
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| 247 | Gatherer.g_man.wait(true);
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| 248 |
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[10971] | 249 |
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| 250 | // Check for a restricted metadata element
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| 251 | MetadataElement metadata_element = metadata_value_table_entry.getMetadataElement();
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| 252 | if (!new_metadata_value.equals("") && metadata_element.isRestricted()) {
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| 253 | if (metadata_element.getMetadataValueTreeNode((String)new_metadata_value)==null) {
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[13398] | 254 | WarningDialog dialog = new WarningDialog("warning.InvalidMetadata", Dictionary.get("InvalidMetadata.Title"), Dictionary.get("InvalidMetadata.Message"), null, false);
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[10971] | 255 | int dialog_result = dialog.display();
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| 256 | dialog.dispose();
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| 257 | Gatherer.g_man.wait(false);
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| 258 | return;
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| 259 |
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| 260 | }
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| 261 | }
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| 262 |
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[9856] | 263 | // Metadata value added
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[10971] | 264 | if (old_metadata_value.equals("") && !new_metadata_value.equals("")) {
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| 265 | // If we're adding metadata to folders display the warning
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[9856] | 266 | if (!file_nodes[0].isLeaf()) {
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[13398] | 267 | WarningDialog dialog = new WarningDialog("warning.DirectoryLevelMetadata", Dictionary.get("DirectoryLevelMetadata.Title"), Dictionary.get("DirectoryLevelMetadata.Message"), null, true);
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[9856] | 268 | int dialog_result = dialog.display();
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| 269 | dialog.dispose();
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| 270 | if (dialog_result != JOptionPane.OK_OPTION) {
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[10612] | 271 | Gatherer.g_man.wait(false);
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[9856] | 272 | return;
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| 273 | }
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| 274 | }
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| 275 |
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| 276 | MetadataValueTreeNode metadata_value_tree_node = metadata_element.addMetadataValue((String) new_metadata_value);
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| 277 | MetadataValue metadata_value = new MetadataValue(metadata_element, metadata_value_tree_node);
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[23433] | 278 | metadata_value.setIsAccumulatingMetadata(true);
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[9856] | 279 | (new AppendMetadataTask(metadata_value)).run();
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| 280 | }
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| 281 |
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| 282 | // Metadata value removed
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| 283 | else if (!old_metadata_value.equals("") && new_metadata_value.equals("")) {
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| 284 | (new RemoveMetadataTask(metadata_value_table_entry)).run();
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| 285 | }
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| 286 |
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| 287 | // Metadata value replaced
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| 288 | else {
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| 289 | MetadataValueTreeNode metadata_value_tree_node = metadata_element.addMetadataValue((String) new_metadata_value);
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| 290 | MetadataValue metadata_value = new MetadataValue(metadata_element, metadata_value_tree_node);
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| 291 | metadata_value.setIsAccumulatingMetadata(!metadata_value_table_entry.isInheritedMetadata());
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| 292 | (new ReplaceMetadataTask(metadata_value_table_entry, metadata_value)).run();
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| 293 | }
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| 294 | }
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| 295 |
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| 296 |
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| 297 | private class AppendMetadataTask
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| 298 | // extends Thread
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| 299 | {
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| 300 | private MetadataValue metadata_value = null;
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| 301 |
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| 302 | private AppendMetadataTask(MetadataValue metadata_value)
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| 303 | {
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| 304 | this.metadata_value = metadata_value;
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| 305 | }
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| 306 |
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| 307 | public void run()
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| 308 | {
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| 309 | try {
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| 310 | // Edit metadata.xml files to add the metadata
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| 311 | MetadataXMLFileManager.addMetadata(file_nodes, metadata_value);
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| 312 | }
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| 313 | catch (Exception exception) {
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| 314 | // We need to catch any exceptions here so the interface is unlocked below
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| 315 | DebugStream.printStackTrace(exception);
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| 316 | }
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| 317 |
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| 318 | // Operation finished, so turn busy cursor off and unlock interface
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| 319 | Gatherer.g_man.wait(false);
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| 320 | }
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| 321 | }
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| 322 |
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| 323 |
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| 324 | private class ReplaceMetadataTask
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| 325 | // extends Thread
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| 326 | {
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| 327 | private MetadataValueTableEntry selected_metadata_value_table_entry = null;
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| 328 | private MetadataValue metadata_value = null;
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| 329 |
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| 330 | private ReplaceMetadataTask(MetadataValueTableEntry selected_metadata_value_table_entry, MetadataValue metadata_value)
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| 331 | {
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| 332 | this.selected_metadata_value_table_entry = selected_metadata_value_table_entry;
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| 333 | this.metadata_value = metadata_value;
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| 334 | }
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| 335 |
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| 336 | public void run()
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| 337 | {
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| 338 | try {
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| 339 | // Edit metadata.xml files to replace the metadata
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| 340 | MetadataXMLFileManager.replaceMetadata(file_nodes, selected_metadata_value_table_entry, metadata_value);
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| 341 | }
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| 342 | catch (Exception exception) {
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| 343 | // We need to catch any exceptions here so the interface is unlocked below
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| 344 | DebugStream.printStackTrace(exception);
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| 345 | }
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| 346 |
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| 347 | // Operation finished, so turn busy cursor off and unlock interface
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| 348 | Gatherer.g_man.wait(false);
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| 349 | }
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| 350 | }
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| 351 |
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| 352 |
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| 353 | private class RemoveMetadataTask
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| 354 | // extends Thread
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| 355 | {
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| 356 | private MetadataValueTableEntry selected_metadata_value_table_entry = null;
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| 357 |
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| 358 | private RemoveMetadataTask(MetadataValueTableEntry selected_metadata_value_table_entry)
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| 359 | {
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| 360 | this.selected_metadata_value_table_entry = selected_metadata_value_table_entry;
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| 361 | }
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| 362 |
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| 363 | public void run()
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| 364 | {
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| 365 | try {
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| 366 | // Edit metadata.xml files to remove the metadata
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| 367 | MetadataXMLFileManager.removeMetadata(file_nodes, selected_metadata_value_table_entry);
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| 368 | }
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| 369 | catch (Exception exception) {
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| 370 | // We need to catch any exceptions here so the interface is unlocked below
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| 371 | DebugStream.printStackTrace(exception);
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| 372 | }
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| 373 |
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| 374 | // Operation finished, so turn busy cursor off and unlock interface
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| 375 | Gatherer.g_man.wait(false);
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| 376 | }
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| 377 | }
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| 378 |
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| 379 |
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[7978] | 380 | private class MetadataValueTableModelBuilder
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| 381 | {
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| 382 | public void run()
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| 383 | {
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[9856] | 384 | // System.err.println("Building MetadataValueTableModel...");
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| 385 |
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[7978] | 386 | // Build a list of MetadataValueTableEntries that represent the metadata asssigned to the selected files
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| 387 | boolean hid_extracted_metadata = false;
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| 388 | ArrayList metadata_elements_seen = new ArrayList();
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[7822] | 389 |
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[7978] | 390 | // Process each of the selected files in turn
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| 391 | for (int i = 0; i < file_nodes.length; i++) {
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| 392 | File current_file = file_nodes[i].getFile();
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[7822] | 393 |
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[7978] | 394 | // Get the metadata assigned to this file
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| 395 | ArrayList assigned_metadata = MetadataXMLFileManager.getMetadataAssignedToFile(current_file);
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| 396 | for (int j = 0; j < assigned_metadata.size(); j++) {
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| 397 | MetadataValue metadata_value = (MetadataValue) assigned_metadata.get(j);
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| 398 | MetadataElement metadata_element = metadata_value.getMetadataElement();
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[7822] | 399 |
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[7978] | 400 | // Insert this metadata value into the table, unless it already exists (in which case increment its count)
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[9856] | 401 | insertMetadataValue(metadata_value);
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[7822] | 402 |
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[7978] | 403 | // Remember we have seen this metadata element
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| 404 | if (metadata_elements_seen.contains(metadata_element) == false) {
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| 405 | metadata_elements_seen.add(metadata_element);
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| 406 | }
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| 407 | }
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[7822] | 408 |
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[7978] | 409 | // Get the extracted metadata for this file, if desired
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[8231] | 410 | if (Configuration.get("general.view_extracted_metadata", Configuration.COLLECTION_SPECIFIC) == true) {
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[7978] | 411 | ArrayList extracted_metadata = DocXMLFileManager.getMetadataExtractedFromFile(current_file);
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| 412 | for (int k = 0; k < extracted_metadata.size(); k++) {
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| 413 | MetadataValue metadata_value = (MetadataValue) extracted_metadata.get(k);
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[7822] | 414 |
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[7978] | 415 | // Insert this metadata value into the table, unless it already exists (in which case increment its count)
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[9856] | 416 | insertMetadataValue(metadata_value);
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[7978] | 417 | }
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| 418 | }
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[7822] | 419 | }
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| 420 |
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[7978] | 421 | // Make sure each non-extracted metadata element appears in the table (even if blank)
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| 422 | ArrayList every_metadata_set_element = MetadataSetManager.getEveryMetadataSetElement();
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| 423 | for (int i = 0; i < every_metadata_set_element.size(); i++) {
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| 424 | MetadataElement metadata_element = (MetadataElement) every_metadata_set_element.get(i);
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[7822] | 425 |
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[7978] | 426 | // If we haven't seen this metadata element and it isn't extracted, add it now
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[9211] | 427 | if (!metadata_elements_seen.contains(metadata_element) && !metadata_element.isExtractedMetadataElement()) {
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[7978] | 428 | MetadataValueTableEntry metadata_value_table_entry = new MetadataValueTableEntry(metadata_element, new MetadataValueTreeNode(""));
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[7822] | 429 |
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[7978] | 430 | // Blank metadata is common to all selected files (otherwise it wouldn't be blank!)
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| 431 | metadata_value_table_entry.setOccurrences(file_nodes.length);
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[7822] | 432 |
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[7978] | 433 | // Add it to the table
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[9856] | 434 | insertMetadataValueTableEntry(metadata_value_table_entry);
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[7978] | 435 | }
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[7822] | 436 | }
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| 437 |
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[7978] | 438 | // If extracted metadata was hidden, display the warning
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| 439 | if (hid_extracted_metadata) {
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| 440 | showExtractedMetadataWarning();
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| 441 | }
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| 442 | }
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[7822] | 443 |
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| 444 |
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[9856] | 445 | /** Inserts the new metadata value into the table */
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| 446 | private int insertMetadataValue(MetadataValue metadata_value)
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[7978] | 447 | {
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[9856] | 448 | return insertMetadataValueTableEntry(new MetadataValueTableEntry(metadata_value));
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[8125] | 449 | }
|
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| 450 |
|
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| 451 |
|
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[9856] | 452 | /** Inserts the new metadata value table entry into the table */
|
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| 453 | private int insertMetadataValueTableEntry(MetadataValueTableEntry metadata_value_table_entry)
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[8125] | 454 | {
|
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[9856] | 455 | MetadataElement metadata_element = metadata_value_table_entry.getMetadataElement();
|
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| 456 |
|
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| 457 | // Find the correct place to insert the table entry
|
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[7978] | 458 | for (int i = 0; i < metadata_value_table_entries.size(); i++) {
|
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| 459 | MetadataValueTableEntry current_metadata_value_table_entry = (MetadataValueTableEntry) metadata_value_table_entries.get(i);
|
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[9856] | 460 | int element_comparison = MetadataSetManager.compareMetadataElements(current_metadata_value_table_entry.getMetadataElement(), metadata_element);
|
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[7822] | 461 |
|
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[9856] | 462 | // We've found the right element, so check if the value already exists
|
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| 463 | if (element_comparison == 0) {
|
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| 464 | int value_comparison = current_metadata_value_table_entry.compareTo(metadata_value_table_entry);
|
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| 465 | if (value_comparison == 0) {
|
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| 466 | // Entry already exists, so increment count (except for blank entries)
|
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| 467 | if (!metadata_value_table_entry.getFullValue().equals("")) {
|
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| 468 | current_metadata_value_table_entry.anotherOccurrence();
|
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| 469 | }
|
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| 470 | return i;
|
---|
| 471 | }
|
---|
| 472 | }
|
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| 473 |
|
---|
| 474 | // Found insertion point
|
---|
| 475 | if (element_comparison > 0) {
|
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[8125] | 476 | metadata_value_table_entries.add(i, metadata_value_table_entry);
|
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[7978] | 477 | fireTableRowsInserted(i, i);
|
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[9856] | 478 | return i;
|
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[7978] | 479 | }
|
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[7822] | 480 | }
|
---|
| 481 |
|
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[7978] | 482 | // Must go at the end of the table
|
---|
[8125] | 483 | metadata_value_table_entries.add(metadata_value_table_entry);
|
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[7978] | 484 | fireTableRowsInserted(metadata_value_table_entries.size() - 1, metadata_value_table_entries.size() - 1);
|
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[9856] | 485 | return metadata_value_table_entries.size() - 1;
|
---|
[7978] | 486 | }
|
---|
[7822] | 487 |
|
---|
| 488 |
|
---|
[7978] | 489 | private void showExtractedMetadataWarning()
|
---|
| 490 | {
|
---|
| 491 | Runnable task = new Runnable() {
|
---|
| 492 | public void run() {
|
---|
[13398] | 493 | WarningDialog dialog = new WarningDialog("warning.ExtractedMetadata", Dictionary.get("ExtractedMetadata.Title"), Dictionary.get("ExtractedMetadata.Message"), null, false);
|
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[7978] | 494 | dialog.display();
|
---|
| 495 | dialog.dispose();
|
---|
| 496 | dialog = null;
|
---|
| 497 | }
|
---|
| 498 | };
|
---|
| 499 | SwingUtilities.invokeLater(task);
|
---|
| 500 | }
|
---|
| 501 | }
|
---|
[7822] | 502 | }
|
---|