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 | * <BR><BR>
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9 | *
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10 | * Author: John Thompson, NZDL Project, University of Waikato
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11 | *
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12 | * <BR><BR>
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13 | *
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14 | * Copyright (C) 2005 New Zealand Digital Library Project
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15 | *
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16 | * <BR><BR>
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17 | *
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18 | * This program is free software; you can redistribute it and/or modify
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19 | * it under the terms of the GNU General Public License as published by
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20 | * the Free Software Foundation; either version 2 of the License, or
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21 | * (at your option) any later version.
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22 | *
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23 | * <BR><BR>
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24 | *
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25 | * This program is distributed in the hope that it will be useful,
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26 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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27 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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28 | * GNU General Public License for more details.
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29 | *
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30 | * <BR><BR>
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31 | *
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32 | * You should have received a copy of the GNU General Public License
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33 | * along with this program; if not, write to the Free Software
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34 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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35 | *########################################################################
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36 | */
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37 | package org.greenstone.gatherer.file;
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38 |
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39 | import java.io.File;
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40 | import javax.swing.*;
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41 | import org.greenstone.gatherer.Dictionary;
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42 | import org.greenstone.gatherer.Gatherer;
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43 | import org.greenstone.gatherer.collection.CollectionTree;
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44 | import org.greenstone.gatherer.collection.CollectionTreeNode;
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45 | import org.greenstone.gatherer.gui.ExplodeMetadataDatabasePrompt;
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46 | import org.greenstone.gatherer.gui.GProgressBar;
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47 | import org.greenstone.gatherer.gui.NewFolderOrFilePrompt;
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48 | import org.greenstone.gatherer.gui.RenamePrompt;
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49 | import org.greenstone.gatherer.gui.tree.DragTree;
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50 | import org.greenstone.gatherer.remote.RemoteGreenstoneServer;
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51 | import org.greenstone.gatherer.util.DragComponent;
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52 | import org.greenstone.gatherer.util.Utility;
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53 |
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54 | /** Manages the moving of files within a separate thread.
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55 | * @author John Thompson, NZDL Project, University of Waikato
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56 | */
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57 | public class FileManager
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58 | {
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59 | /** Not only the queue of files to be moved, but also the object that moves them. */
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60 | static private FileQueue file_queue = null;
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61 |
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62 | public static int FILE_TYPE = 0;
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63 | public static int FOLDER_TYPE = 1;
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64 | protected static File startup_directory = null;
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65 |
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66 |
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67 | /** Constructor.
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68 | * @see org.greenstone.gatherer.file.FileQueue
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69 | */
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70 | public FileManager()
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71 | {
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72 | file_queue = new FileQueue();
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73 | file_queue.start();
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74 | }
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75 |
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76 |
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77 | /** Determine what action should be carried out by the file queue, and add all of the necessary file jobs. */
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78 | public void action(DragComponent source, FileNode[] source_nodes, DragComponent target, FileNode target_node)
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79 | {
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80 | // Check there is something to do
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81 | if (source_nodes == null || source_nodes.length == 0) {
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82 | return;
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83 | }
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84 |
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85 | // We need a unique ID for each file task
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86 | long id = System.currentTimeMillis();
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87 |
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88 | // If source and target are the same we're moving
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89 | if (source == target) {
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90 | // Start a new move FileTask and we're done
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91 | (new FileTask(id, source, source_nodes, target, target_node, FileJob.MOVE)).start();
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92 | return;
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93 | }
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94 |
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95 | // If target isn't the RecycleBin, we're copying
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96 | if (!(target instanceof RecycleBin)) {
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97 | // Start a new copy FileTask and we're done
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98 | (new FileTask(id, source, source_nodes, target, target_node, FileJob.COPY)).start();
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99 | return;
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100 | }
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101 |
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102 | // We're deleting... but first make sure source isn't read-only
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103 | boolean read_only_source = false;
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104 |
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105 | // The workspace tree is read-only...
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106 | if (source.toString().equals("Workspace")) {
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107 | read_only_source = true;
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108 |
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109 | // ...except for files from the "Downloaded Files" folder
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110 | String downloaded_files_folder_path = Gatherer.getGLIUserCacheDirectoryPath();
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111 | for (int i = 0; i < source_nodes.length; i++) {
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112 | // Is this the "Downloaded Files" folder?
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113 | if (source_nodes[i].getFile().getAbsolutePath().startsWith(downloaded_files_folder_path)) {
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114 | read_only_source = false;
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115 | }
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116 | }
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117 | }
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118 |
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119 | // The source is read-only, so tell the user and abort
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120 | if (read_only_source) {
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121 | JOptionPane.showMessageDialog(Gatherer.g_man, Dictionary.get("FileActions.Read_Only"), Dictionary.get("General.Error"), JOptionPane.ERROR_MESSAGE);
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122 | return;
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123 | }
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124 |
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125 | // Start a new delete FileTask and we're done
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126 | (new FileTask(id, source, source_nodes, target, target_node, FileJob.DELETE)).start();
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127 | }
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128 |
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129 |
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130 | /** Retrieves the file queue object. */
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131 | public FileQueue getQueue()
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132 | {
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133 | return file_queue;
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134 | }
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135 |
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136 |
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137 | private class FileTask
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138 | extends Thread
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139 | {
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140 | private long id;
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141 | private DragComponent source;
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142 | private FileNode[] source_nodes;
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143 | private DragComponent target;
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144 | private FileNode target_node;
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145 | private byte type;
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146 |
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147 |
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148 | public FileTask(long id, DragComponent source, FileNode[] source_nodes, DragComponent target, FileNode target_node, byte type)
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149 | {
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150 | this.id = id;
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151 | this.source = source;
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152 | this.source_nodes = source_nodes;
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153 | this.target = target;
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154 | this.target_node = target_node;
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155 | this.type = type;
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156 | }
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157 |
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158 |
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159 | public void run()
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160 | {
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161 | // Reset the progress bar and set it to indeterminate while calculating its size
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162 | GProgressBar progress_bar = file_queue.getProgressBar();
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163 | progress_bar.reset();
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164 | progress_bar.setIndeterminate(true);
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165 |
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166 | // Calculate the progress bar size
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167 | boolean cancelled = file_queue.calculateSize(source_nodes);
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168 | if (!cancelled) {
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169 | file_queue.addJob(id, source, source_nodes, target, target_node, type);
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170 | if (Gatherer.isGsdlRemote) {
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171 | String collection_name = Gatherer.c_man.getCollection().getName();
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172 |
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173 | // Perform the appropriate action based on the job type (RemoteGreenstoneServer will queue)
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174 | if (type == FileJob.COPY) {
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175 | // Copies: upload all the files at once in one zip file
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176 | File[] source_files = new File[source_nodes.length];
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177 | for (int i = 0; i < source_nodes.length; i++) {
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178 | source_files[i] = source_nodes[i].getFile();
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179 | }
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180 | RemoteGreenstoneServer.uploadFilesIntoCollection(collection_name, source_files, target_node.getFile());
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181 | }
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182 | else if (type == FileJob.DELETE) {
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183 | // Deletes: delete each top-level file/directory one at a time
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184 | for (int i = 0; i < source_nodes.length; i++) {
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185 | RemoteGreenstoneServer.deleteCollectionFile(collection_name, source_nodes[i].getFile());
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186 | }
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187 | }
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188 | else if (type == FileJob.MOVE) {
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189 | // Moves: move each top-level file/directory one at a time
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190 | for (int i = 0; i < source_nodes.length; i++) {
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191 | RemoteGreenstoneServer.moveCollectionFile(collection_name, source_nodes[i].getFile(), target_node.getFile());
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192 | }
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193 | }
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194 | }
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195 | }
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196 |
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197 | progress_bar.setIndeterminate(false);
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198 | progress_bar.clear();
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199 | }
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200 | }
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201 |
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202 |
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203 | public void explodeMetadataDatabase(File file)
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204 | {
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205 | // This must go in a separate thread because we need the progress bar to work (remote Greenstone server)
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206 | new ExplodeMetadataDatabasePromptTask(file).start();
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207 | }
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208 |
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209 |
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210 | private class ExplodeMetadataDatabasePromptTask
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211 | extends Thread
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212 | {
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213 | private File metadata_database_file = null;
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214 |
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215 | public ExplodeMetadataDatabasePromptTask(File metadata_database_file)
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216 | {
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217 | this.metadata_database_file = metadata_database_file;
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218 | }
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219 |
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220 | public void run()
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221 | {
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222 | ExplodeMetadataDatabasePrompt emp = new ExplodeMetadataDatabasePrompt(metadata_database_file);
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223 | }
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224 | }
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225 |
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226 |
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227 | public void openFileInExternalApplication(File file)
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228 | {
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229 | // This must go in a separate thread because we need the progress bar to work (remote Greenstone server)
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230 | new OpenFileInExternalApplicationTask(file).start();
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231 | }
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232 |
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233 |
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234 | private class OpenFileInExternalApplicationTask
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235 | extends Thread
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236 | {
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237 | private File file = null;
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238 |
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239 | public OpenFileInExternalApplicationTask(File file)
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240 | {
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241 | this.file = file;
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242 | }
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243 |
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244 | public void run()
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245 | {
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246 | // If we're using a remote Greenstone server, we need to download the file before viewing it...
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247 | if (Gatherer.isGsdlRemote) {
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248 | // ... but only if it is inside the collection and we haven't already downloaded it
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249 | if (file.getAbsolutePath().startsWith(Gatherer.getCollectDirectoryPath()) && file.length() == 0) {
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250 | if (RemoteGreenstoneServer.downloadCollectionFile(Gatherer.c_man.getCollection().getName(), file).equals("")) {
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251 | // Something has gone wrong downloading the file
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252 | return;
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253 | }
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254 | }
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255 | }
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256 |
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257 | // View the file in an external application
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258 | Gatherer.spawnApplication(file);
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259 | }
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260 | }
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261 |
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262 |
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263 | public void newDummyDoc(DragTree tree, CollectionTreeNode parent_node){
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264 | newFolderOrDummyDoc(tree, parent_node, FILE_TYPE);
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265 | }
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266 |
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267 |
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268 | public void newFolder(DragTree tree, CollectionTreeNode parent_node) {
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269 | newFolderOrDummyDoc(tree, parent_node, FOLDER_TYPE);
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270 | }
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271 |
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272 |
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273 | protected void newFolderOrDummyDoc(DragTree tree, CollectionTreeNode parent_node, int type) {
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274 | (new NewFolderOrDummyDocumentTask(tree, parent_node, type)).start();
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275 | }
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276 |
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277 |
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278 | private class NewFolderOrDummyDocumentTask
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279 | extends Thread
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280 | {
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281 | private DragTree tree = null;
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282 | private CollectionTreeNode parent_node = null;
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283 | private int type;
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284 |
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285 | public NewFolderOrDummyDocumentTask(DragTree tree, CollectionTreeNode parent_node, int type)
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286 | {
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287 | this.tree = tree;
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288 | this.parent_node = parent_node;
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289 | this.type = type;
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290 | }
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291 |
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292 | public void run()
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293 | {
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294 | // Ask the user for the directories name.
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295 | String extension = "";
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296 | if (type == FILE_TYPE) {
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297 | extension = ".nul";
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298 | }
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299 |
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300 | NewFolderOrFilePrompt new_folder_prompt = new NewFolderOrFilePrompt(parent_node, type, extension);
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301 | String name = new_folder_prompt.display();
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302 | new_folder_prompt.dispose();
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303 | new_folder_prompt = null;
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304 |
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305 | // And if the name is non-null...
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306 | if (name != null) {
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307 | FileSystemModel model = (FileSystemModel) tree.getModel();
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308 | File folder_file = new File(parent_node.getFile(), name);
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309 |
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310 | //... check if it already exists.
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311 | if (folder_file.exists()) {
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312 | if (type == FILE_TYPE) {
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313 | JOptionPane.showMessageDialog(Gatherer.g_man, Dictionary.get("FileActions.File_Already_Exists_No_Create", name), Dictionary.get("General.Error"), JOptionPane.ERROR_MESSAGE);
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314 | }
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315 | else {
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316 | JOptionPane.showMessageDialog(Gatherer.g_man, Dictionary.get("FileActions.Folder_Already_Exists", name), Dictionary.get("General.Error"), JOptionPane.ERROR_MESSAGE);
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317 | }
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318 | }
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319 | // Otherwise create it.
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320 | else {
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321 | try {
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322 | if (type == FILE_TYPE) {
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323 | folder_file.createNewFile();
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324 | if (Gatherer.isGsdlRemote) {
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325 | RemoteGreenstoneServer.uploadCollectionFile(Gatherer.c_man.getCollection().getName(), folder_file);
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326 | }
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327 | }
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328 | else {
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329 | folder_file.mkdirs();
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330 | if (Gatherer.isGsdlRemote) {
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331 | RemoteGreenstoneServer.newCollectionDirectory(Gatherer.c_man.getCollection().getName(), folder_file);
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332 | }
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333 | }
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334 |
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335 | // Update the parent node to show the new folder
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336 | parent_node.refresh();
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337 |
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338 | // Refresh workspace tree (collection tree is done automatically)
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339 | Gatherer.g_man.refreshWorkspaceTree(DragTree.COLLECTION_CONTENTS_CHANGED);
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340 | }
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341 | catch (Exception exception) {
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342 | if (type == FILE_TYPE) {
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343 | JOptionPane.showMessageDialog(Gatherer.g_man, Dictionary.get("FileActions.File_Create_Error", name), Dictionary.get("General.Error"), JOptionPane.ERROR_MESSAGE);
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344 | }
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345 | else {
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346 | JOptionPane.showMessageDialog(Gatherer.g_man, Dictionary.get("FileActions.Folder_Create_Error", name), Dictionary.get("General.Error"), JOptionPane.ERROR_MESSAGE);
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347 | }
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348 | }
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349 | }
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350 |
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351 | folder_file = null;
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352 | model = null;
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353 | }
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354 | name = null;
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355 | }
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356 | }
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357 |
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358 |
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359 | public void renameCollectionFile(CollectionTree collection_tree, CollectionTreeNode collection_tree_node)
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360 | {
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361 | // This must go in a separate thread because we need the progress bar to work (remote Greenstone server)
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362 | new RenameTask(collection_tree, collection_tree_node).start();
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363 | }
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364 |
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365 |
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366 | private class RenameTask
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367 | extends Thread
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368 | {
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369 | private CollectionTree collection_tree = null;
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370 | private CollectionTreeNode collection_tree_node = null;
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371 |
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372 | public RenameTask(CollectionTree collection_tree, CollectionTreeNode collection_tree_node)
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373 | {
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374 | this.collection_tree = collection_tree;
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375 | this.collection_tree_node = collection_tree_node;
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376 | }
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377 |
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378 | public void run()
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379 | {
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380 | RenamePrompt rename_prompt = new RenamePrompt(collection_tree_node);
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381 | String new_collection_file_name = rename_prompt.display();
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382 | rename_prompt.dispose();
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383 | rename_prompt = null;
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384 |
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385 | if (new_collection_file_name != null) {
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386 | File collection_file = collection_tree_node.getFile();
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387 | File new_collection_file = new File(collection_file.getParentFile(), new_collection_file_name);
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388 | CollectionTreeNode new_collection_tree_node = new CollectionTreeNode(new_collection_file);
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389 | file_queue.addJob(System.currentTimeMillis(), collection_tree, new FileNode[] { collection_tree_node }, collection_tree, new_collection_tree_node, FileJob.RENAME);
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390 | }
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391 | }
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392 | }
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393 |
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394 | public void replaceCollectionFile(CollectionTree collection_tree, CollectionTreeNode collection_tree_node)
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395 | {
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396 | // This must go in a separate thread because we need the progress bar to work (remote Greenstone server)
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397 | new ReplaceTask(collection_tree, collection_tree_node).start();
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398 | }
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399 |
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400 |
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401 | private class ReplaceTask
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402 | extends Thread
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403 | {
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404 | private CollectionTree collection_tree = null;
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405 | private CollectionTreeNode collection_tree_node = null;
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406 |
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407 | public ReplaceTask(CollectionTree collection_tree, CollectionTreeNode collection_tree_node)
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408 | {
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409 | this.collection_tree = collection_tree;
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410 | this.collection_tree_node = collection_tree_node;
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411 | }
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412 |
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413 | public void run()
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414 | {
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415 |
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416 | JFileChooser file_chooser = new JFileChooser(startup_directory);
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417 | file_chooser.setDialogTitle(Dictionary.get("ReplacePrompt.Title"));
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418 | File new_file = null;
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419 | int return_val = file_chooser.showOpenDialog(null);
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420 | if(return_val == JFileChooser.APPROVE_OPTION) {
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421 | new_file = file_chooser.getSelectedFile();
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422 | }
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423 |
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424 | if (new_file == null) {
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425 | return;
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426 | }
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427 |
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428 | // save the search path for next time
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429 | startup_directory = new_file.getParentFile();
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430 | // make up a node for the file to bring in
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431 | WorkspaceTreeNode source_node = new WorkspaceTreeNode(new_file);
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432 |
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433 | File target_directory = collection_tree_node.getFile().getParentFile();
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434 | CollectionTreeNode new_collection_tree_node = new CollectionTreeNode(new File(target_directory, new_file.getName()));
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435 | // copy the new file in - but don't bring metadata
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436 | file_queue.addJob(System.currentTimeMillis(), Gatherer.g_man.gather_pane.workspace_tree, new FileNode[] { source_node }, collection_tree, (FileNode)collection_tree_node.getParent(), FileJob.COPY_FILE_ONLY);
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437 | // do a replace of old file with new file
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438 | file_queue.addJob(System.currentTimeMillis(), collection_tree, new FileNode[] { collection_tree_node }, collection_tree, new_collection_tree_node, FileJob.REPLACE);
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439 |
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440 | }
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441 | }
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442 |
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443 | }
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444 |
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445 |
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446 |
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447 |
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