[33053] | 1 | /**
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| 2 | *############################################################################
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| 3 | * A component of the Greenstone Librarian Interface, part of the Greenstone
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| 4 | * digital library suite from the New Zealand Digital Library Project at the
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| 5 | * University of Waikato, New Zealand.
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| 6 | *
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| 7 | * Author: Michael Dewsnip, NZDL Project, University of Waikato, NZ
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| 8 | *
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| 9 | * Copyright (C) 2004 New Zealand Digital Library Project
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| 10 | *
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| 11 | * This program is free software; you can redistribute it and/or modify
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| 12 | * it under the terms of the GNU General Public License as published by
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| 13 | * the Free Software Foundation; either version 2 of the License, or
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| 14 | * (at your option) any later version.
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| 15 | *
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| 16 | * This program is distributed in the hope that it will be useful,
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| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 19 | * GNU General Public License for more details.
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| 20 | *
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| 21 | * You should have received a copy of the GNU General Public License
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| 22 | * along with this program; if not, write to the Free Software
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| 23 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 24 | *############################################################################
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| 25 | */
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| 26 |
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| 27 | package org.greenstone.gatherer.file;
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| 28 |
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| 29 | import java.io.*;
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| 30 | import java.util.*;
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| 31 | import javax.swing.tree.TreePath;
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| 32 | import org.greenstone.gatherer.Configuration;
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| 33 | import org.greenstone.gatherer.DebugStream;
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| 34 | import org.greenstone.gatherer.Dictionary;
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| 35 | import org.greenstone.gatherer.Gatherer;
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| 36 | import org.greenstone.gatherer.util.SynchronizedTreeModelTools;
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| 37 |
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| 38 |
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| 39 | public class WorkspaceTreeModel
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| 40 | extends FileSystemModel
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| 41 | {
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| 42 | static private WorkspaceTreeModel workspace_tree_model = null;
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| 43 | static private WorkspaceTreeNode workspace_tree_root = null;
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| 44 |
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| 45 | static private WorkspaceTreeNode greenstone_collections_node = null;
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| 46 | static private WorkspaceTreeNode local_filespace_node = null;
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| 47 | static private WorkspaceTreeNode downloaded_files_node = null;
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| 48 | static private WorkspaceTreeNode[] folder_shortcuts = null;
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| 49 |
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| 50 |
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| 51 | public WorkspaceTreeModel(WorkspaceTreeNode root_node)
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| 52 | {
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| 53 | super(root_node);
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| 54 | }
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| 55 |
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| 56 |
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| 57 | static public WorkspaceTreeNode[] getFolderShortcuts()
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| 58 | {
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| 59 | // Return any predefined special directories
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| 60 | HashMap mappings = Configuration.getDirectoryMappings();
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| 61 | WorkspaceTreeNode[] mapping_nodes = new WorkspaceTreeNode[mappings.size()];
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| 62 | Iterator mappings_iterator = mappings.keySet().iterator();
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| 63 | for (int i = 0; mappings_iterator.hasNext(); i++) {
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| 64 | String mapping_name = (String) mappings_iterator.next();
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| 65 | File mapping_file = (File) mappings.get(mapping_name);
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| 66 | mapping_nodes[i] = new WorkspaceTreeNode(mapping_file, mapping_name);
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| 67 | }
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| 68 | return mapping_nodes;
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| 69 | }
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| 70 |
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| 71 |
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| 72 | static public WorkspaceTreeModel getWorkspaceTreeModel()
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| 73 | {
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| 74 | // Create a root node to contain the various nodes in the workspace tree
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| 75 | workspace_tree_root = new WorkspaceTreeNode(null, "ABS_ROOT");
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| 76 | workspace_tree_model = new WorkspaceTreeModel(workspace_tree_root);
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| 77 |
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| 78 | // Add the "Documents in Greenstone Collections" node
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| 79 | greenstone_collections_node = new WorkspaceTreeNode(null, Dictionary.get("Tree.World"));
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| 80 | workspace_tree_root.add(greenstone_collections_node);
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| 81 |
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| 82 | // Add the "Local Filespace" node
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| 83 | local_filespace_node = FileSystem.getLocalFilespaceNode(workspace_tree_model);
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| 84 | workspace_tree_root.add(local_filespace_node);
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| 85 |
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| 86 | // Add the "Home Folder" node
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| 87 | workspace_tree_root.add(FileSystem.getHomeFolderNode());
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| 88 |
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| 89 | // Add the "Downloaded Files" node, if the Download pane is enabled
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| 90 | if (Gatherer.g_man.download_pane != null) {
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| 91 | downloaded_files_node = FileSystem.getDownloadedFilesNode();
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| 92 | workspace_tree_root.add(downloaded_files_node);
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| 93 | }
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| 94 |
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| 95 | // Add any folder shortcuts the user has created
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| 96 | refreshFolderShortcuts();
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| 97 |
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| 98 | return workspace_tree_model;
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| 99 | }
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| 100 |
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| 101 |
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| 102 | static public void refreshGreenstoneCollectionsNode()
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| 103 | {
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| 104 | greenstone_collections_node.refresh();
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| 105 | }
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| 106 |
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| 107 |
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| 108 | static public void refreshDownloadedFilesNode()
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| 109 | {
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| 110 | downloaded_files_node.refresh();
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| 111 | }
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| 112 |
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| 113 |
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| 114 | static public void refreshFolderShortcuts()
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| 115 | {
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| 116 | // Check for new/deleted folder shortcuts
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| 117 | WorkspaceTreeNode[] old_folder_shortcuts = folder_shortcuts;
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| 118 | folder_shortcuts = getFolderShortcuts();
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| 119 |
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| 120 | // Remove any deleted shortcuts from the tree
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| 121 | if (old_folder_shortcuts != null) {
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| 122 | for (int i = 0; i < old_folder_shortcuts.length; i++) {
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| 123 | if (!doesArrayContain(folder_shortcuts, old_folder_shortcuts[i])) {
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| 124 | DebugStream.println("Deleted shortcut: " + old_folder_shortcuts[i]);
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| 125 | SynchronizedTreeModelTools.removeNodeFromParent(workspace_tree_model, old_folder_shortcuts[i]);
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| 126 | }
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| 127 | }
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| 128 | }
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| 129 |
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| 130 | // Add any new shortcuts to the tree
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| 131 | if (folder_shortcuts != null) {
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| 132 | for (int i = 0; i < folder_shortcuts.length; i++) {
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| 133 | if (!doesArrayContain(old_folder_shortcuts, folder_shortcuts[i])) {
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| 134 | DebugStream.println("Added shortcut: " + folder_shortcuts[i]);
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| 135 | SynchronizedTreeModelTools.insertNodeInto(workspace_tree_model, workspace_tree_root, folder_shortcuts[i], false);
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| 136 | }
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| 137 | }
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| 138 | }
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| 139 | }
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| 140 |
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| 141 |
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| 142 | // -- This code is necessary to support the workspace tree file filter --
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| 143 | public void refresh(TreePath path)
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| 144 | {
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| 145 | // If we're not refreshing the whole tree just refresh a certain path
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| 146 | if (path != null) {
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| 147 | super.refresh(path);
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| 148 | return;
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| 149 | }
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| 150 |
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| 151 | // Refresh each of the nodes in the workspace tree
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| 152 | for (int i = 0; i < workspace_tree_root.getChildCount(); i++) {
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| 153 | WorkspaceTreeNode child_node = (WorkspaceTreeNode) workspace_tree_root.getChildAt(i);
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| 154 | super.refresh(new TreePath(child_node.getPath()));
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| 155 | }
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| 156 | }
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| 157 |
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| 158 |
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| 159 | static private boolean doesArrayContain(Object[] array, Object item)
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| 160 | {
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| 161 | if (array == null) {
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| 162 | return false;
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| 163 | }
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| 164 |
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| 165 | for (int i = 0; i < array.length; i++) {
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| 166 | if (item.toString().equals(array[i].toString())) {
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| 167 | return true;
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| 168 | }
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| 169 | }
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| 170 |
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| 171 | return false;
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| 172 | }
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| 173 | }
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