1 | /**
|
---|
2 | *#########################################################################
|
---|
3 | *
|
---|
4 | * A component of the Gatherer application, part of the Greenstone digital
|
---|
5 | * library suite from the New Zealand Digital Library Project at the
|
---|
6 | * University of Waikato, New Zealand.
|
---|
7 | *
|
---|
8 | * <BR><BR>
|
---|
9 | *
|
---|
10 | * Author: John Thompson, NZDL Project, University of Waikato
|
---|
11 | *
|
---|
12 | * <BR><BR>
|
---|
13 | *
|
---|
14 | * Copyright (C) 2005 New Zealand Digital Library Project
|
---|
15 | *
|
---|
16 | * <BR><BR>
|
---|
17 | *
|
---|
18 | * This program is free software; you can redistribute it and/or modify
|
---|
19 | * it under the terms of the GNU General Public License as published by
|
---|
20 | * the Free Software Foundation; either version 2 of the License, or
|
---|
21 | * (at your option) any later version.
|
---|
22 | *
|
---|
23 | * <BR><BR>
|
---|
24 | *
|
---|
25 | * This program is distributed in the hope that it will be useful,
|
---|
26 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
27 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
---|
28 | * GNU General Public License for more details.
|
---|
29 | *
|
---|
30 | * <BR><BR>
|
---|
31 | *
|
---|
32 | * You should have received a copy of the GNU General Public License
|
---|
33 | * along with this program; if not, write to the Free Software
|
---|
34 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
---|
35 | *########################################################################
|
---|
36 | */
|
---|
37 | package org.greenstone.gatherer.file;
|
---|
38 |
|
---|
39 | import java.io.File;
|
---|
40 | import javax.swing.*;
|
---|
41 | import org.greenstone.gatherer.Dictionary;
|
---|
42 | import org.greenstone.gatherer.Gatherer;
|
---|
43 | import org.greenstone.gatherer.collection.CollectionTreeNode;
|
---|
44 | import org.greenstone.gatherer.gui.LongProgressBar;
|
---|
45 | import org.greenstone.gatherer.gui.NewFolderOrFilePrompt;
|
---|
46 | import org.greenstone.gatherer.gui.tree.DragTree;
|
---|
47 | import org.greenstone.gatherer.util.DragComponent;
|
---|
48 | import org.greenstone.gatherer.util.Utility;
|
---|
49 |
|
---|
50 |
|
---|
51 | /** Manages the moving of files within a separate thread.
|
---|
52 | * @author John Thompson, NZDL Project, University of Waikato
|
---|
53 | */
|
---|
54 | public class FileManager
|
---|
55 | {
|
---|
56 | /** Not only the queue of files to be moved, but also the object that moves them. */
|
---|
57 | static private FileQueue file_queue = null;
|
---|
58 | static private RemoteFileQueue remote_file_queue = null;
|
---|
59 |
|
---|
60 | public static int FILE_TYPE = 0;
|
---|
61 | public static int FOLDER_TYPE = 1;
|
---|
62 |
|
---|
63 |
|
---|
64 | /** Constructor.
|
---|
65 | * @see org.greenstone.gatherer.file.FileQueue
|
---|
66 | */
|
---|
67 | public FileManager()
|
---|
68 | {
|
---|
69 | file_queue = new FileQueue();
|
---|
70 | file_queue.start();
|
---|
71 |
|
---|
72 | if (Gatherer.isGsdlRemote) {
|
---|
73 | remote_file_queue = new RemoteFileQueue();
|
---|
74 | remote_file_queue.start();
|
---|
75 | }
|
---|
76 | }
|
---|
77 |
|
---|
78 |
|
---|
79 | /** Determine what action should be carried out by the file queue, and add all of the necessary file jobs. */
|
---|
80 | public void action(DragComponent source, FileNode[] source_nodes, DragComponent target, FileNode target_node)
|
---|
81 | {
|
---|
82 | // Check there is something to do
|
---|
83 | if (source_nodes == null) {
|
---|
84 | return;
|
---|
85 | }
|
---|
86 |
|
---|
87 | // We need a unique ID for each file task
|
---|
88 | long id = System.currentTimeMillis();
|
---|
89 |
|
---|
90 | // If source and target are the same we're moving
|
---|
91 | if (source == target) {
|
---|
92 | // Start a new move FileTask and we're done
|
---|
93 | (new FileTask(id, source, source_nodes, target, target_node, FileJob.MOVE)).start();
|
---|
94 | return;
|
---|
95 | }
|
---|
96 |
|
---|
97 | // If target isn't the RecycleBin, we're copying
|
---|
98 | if (!(target instanceof RecycleBin)) {
|
---|
99 | // Start a new copy FileTask and we're done
|
---|
100 | (new FileTask(id, source, source_nodes, target, target_node, FileJob.COPY)).start();
|
---|
101 | return;
|
---|
102 | }
|
---|
103 |
|
---|
104 | // We're deleting... but first make sure source isn't read-only
|
---|
105 | boolean read_only_source = false;
|
---|
106 |
|
---|
107 | // The workspace tree is read-only...
|
---|
108 | if (source.toString().equals("Workspace")) {
|
---|
109 | read_only_source = true;
|
---|
110 |
|
---|
111 | // ...except for files from the "Downloaded Files" folder
|
---|
112 | String downloaded_files_folder_path = Utility.getCacheDir().getAbsolutePath();
|
---|
113 | for (int i = 0; i < source_nodes.length; i++) {
|
---|
114 | // Is this the "Downloaded Files" folder?
|
---|
115 | if (source_nodes[i].getFile().getAbsolutePath().startsWith(downloaded_files_folder_path)) {
|
---|
116 | // Can only delete from the "Downloaded Files" folder if a collection is open
|
---|
117 | if (Gatherer.c_man.ready() == false) {
|
---|
118 | return;
|
---|
119 | }
|
---|
120 | read_only_source = false;
|
---|
121 | }
|
---|
122 | }
|
---|
123 | }
|
---|
124 |
|
---|
125 | // The source is read-only, so tell the user and abort
|
---|
126 | if (read_only_source) {
|
---|
127 | JOptionPane.showMessageDialog(Gatherer.g_man, Dictionary.get("FileActions.Read_Only"), Dictionary.get("General.Error"), JOptionPane.ERROR_MESSAGE);
|
---|
128 | return;
|
---|
129 | }
|
---|
130 |
|
---|
131 | // Start a new delete FileTask and we're done
|
---|
132 | (new FileTask(id, source, source_nodes, target, target_node, FileJob.DELETE)).start();
|
---|
133 | }
|
---|
134 |
|
---|
135 |
|
---|
136 | /** Retrieves the file queue object. */
|
---|
137 | public FileQueue getQueue()
|
---|
138 | {
|
---|
139 | return file_queue;
|
---|
140 | }
|
---|
141 |
|
---|
142 |
|
---|
143 | private class FileTask
|
---|
144 | extends Thread
|
---|
145 | {
|
---|
146 | private long id;
|
---|
147 | private DragComponent source;
|
---|
148 | private FileNode[] source_nodes;
|
---|
149 | private DragComponent target;
|
---|
150 | private FileNode target_node;
|
---|
151 | private byte type;
|
---|
152 |
|
---|
153 |
|
---|
154 | public FileTask(long id, DragComponent source, FileNode[] source_nodes, DragComponent target, FileNode target_node, byte type)
|
---|
155 | {
|
---|
156 | this.id = id;
|
---|
157 | this.source = source;
|
---|
158 | this.source_nodes = source_nodes;
|
---|
159 | this.target = target;
|
---|
160 | this.target_node = target_node;
|
---|
161 | this.type = type;
|
---|
162 | }
|
---|
163 |
|
---|
164 |
|
---|
165 | public void run()
|
---|
166 | {
|
---|
167 | // Reset the progress bar and set it to indeterminate while calculating its size
|
---|
168 | LongProgressBar progress_bar = file_queue.getProgressBar();
|
---|
169 | progress_bar.reset();
|
---|
170 | progress_bar.setIndeterminate(true);
|
---|
171 |
|
---|
172 | // Calculate the progress bar size
|
---|
173 | boolean cancelled = file_queue.calculateSize(source_nodes);
|
---|
174 | if (!cancelled) {
|
---|
175 | file_queue.addJob(id, source, source_nodes, target, target_node, type, true);
|
---|
176 | if (Gatherer.isGsdlRemote) {
|
---|
177 | remote_file_queue.addJob(id, source, source_nodes, target, target_node, type);
|
---|
178 | }
|
---|
179 | }
|
---|
180 |
|
---|
181 | progress_bar.setIndeterminate(false);
|
---|
182 | progress_bar.clear();
|
---|
183 | }
|
---|
184 | }
|
---|
185 |
|
---|
186 |
|
---|
187 | public void newDummyDoc(DragTree tree, CollectionTreeNode parent_node){
|
---|
188 | newFolderOrDummyDoc(tree, parent_node, FILE_TYPE);
|
---|
189 | }
|
---|
190 |
|
---|
191 |
|
---|
192 | public void newFolder(DragTree tree, CollectionTreeNode parent_node) {
|
---|
193 | newFolderOrDummyDoc(tree, parent_node, FOLDER_TYPE);
|
---|
194 | }
|
---|
195 |
|
---|
196 |
|
---|
197 | protected void newFolderOrDummyDoc(DragTree tree, CollectionTreeNode parent_node, int type) {
|
---|
198 | // Ask the user for the directories name.
|
---|
199 | String extension = "";
|
---|
200 | if (type == FILE_TYPE) {
|
---|
201 | extension = ".nul";
|
---|
202 | }
|
---|
203 | NewFolderOrFilePrompt new_folder_prompt = new NewFolderOrFilePrompt(parent_node, type, extension);
|
---|
204 | String name = new_folder_prompt.display();
|
---|
205 | new_folder_prompt.dispose();
|
---|
206 | new_folder_prompt = null;
|
---|
207 | // And if the name is non-null...
|
---|
208 | if(name != null) {
|
---|
209 | FileSystemModel model = (FileSystemModel) tree.getModel();
|
---|
210 | File folder_file = new File(parent_node.getFile(), name);
|
---|
211 | //... check if it already exists.
|
---|
212 | if(folder_file.exists()) {
|
---|
213 | if (type == FILE_TYPE) {
|
---|
214 | JOptionPane.showMessageDialog(Gatherer.g_man, Dictionary.get("FileActions.File_Already_Exists_No_Create", name), Dictionary.get("General.Error"), JOptionPane.ERROR_MESSAGE);
|
---|
215 | } else {
|
---|
216 | JOptionPane.showMessageDialog(Gatherer.g_man, Dictionary.get("FileActions.Folder_Already_Exists", name), Dictionary.get("General.Error"), JOptionPane.ERROR_MESSAGE);
|
---|
217 | }
|
---|
218 | }
|
---|
219 | // Otherwise create it.
|
---|
220 | else {
|
---|
221 | try {
|
---|
222 | if (type == FILE_TYPE) {
|
---|
223 | folder_file.createNewFile();
|
---|
224 | } else {
|
---|
225 | folder_file.mkdirs();
|
---|
226 | }
|
---|
227 | // Update the parent node to show the new folder
|
---|
228 | parent_node.refresh();
|
---|
229 |
|
---|
230 | // Refresh workspace tree (collection tree is done automatically)
|
---|
231 | Gatherer.g_man.refreshWorkspaceTree(DragTree.COLLECTION_CONTENTS_CHANGED);
|
---|
232 | } catch (Exception e) {
|
---|
233 | if (type == FILE_TYPE) {
|
---|
234 | JOptionPane.showMessageDialog(Gatherer.g_man, Dictionary.get("FileActions.File_Create_Error", name), Dictionary.get("General.Error"), JOptionPane.ERROR_MESSAGE);
|
---|
235 | } else {
|
---|
236 | JOptionPane.showMessageDialog(Gatherer.g_man, Dictionary.get("FileActions.Folder_Create_Error", name), Dictionary.get("General.Error"), JOptionPane.ERROR_MESSAGE);
|
---|
237 | }
|
---|
238 | }
|
---|
239 | }
|
---|
240 |
|
---|
241 | folder_file = null;
|
---|
242 | model = null;
|
---|
243 | }
|
---|
244 | name = null;
|
---|
245 | }
|
---|
246 | }
|
---|