/**
*#########################################################################
*
* A component of the Gatherer application, part of the Greenstone digital
* library suite from the New Zealand Digital Library Project at the
* University of Waikato, New Zealand.
*
*
*
* Author: John Thompson, NZDL Project, University of Waikato
*
*
*
* Copyright (C) 2005 New Zealand Digital Library Project
*
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
*
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*########################################################################
*/
package org.greenstone.gatherer.file;
import java.io.File;
import javax.swing.*;
import org.greenstone.gatherer.Dictionary;
import org.greenstone.gatherer.Gatherer;
import org.greenstone.gatherer.collection.CollectionManager;
import org.greenstone.gatherer.collection.CollectionTree;
import org.greenstone.gatherer.collection.CollectionTreeNode;
import org.greenstone.gatherer.gui.ExplodeMetadataDatabasePrompt;
import org.greenstone.gatherer.gui.ReplaceSrcDocWithHtmlPrompt;
import org.greenstone.gatherer.gui.GProgressBar;
import org.greenstone.gatherer.gui.NewFolderOrFilePrompt;
import org.greenstone.gatherer.gui.RenamePrompt;
import org.greenstone.gatherer.gui.tree.DragTree;
import org.greenstone.gatherer.remote.RemoteGreenstoneServer;
import org.greenstone.gatherer.util.DragComponent;
import org.greenstone.gatherer.util.Utility;
/** Manages the moving of files within a separate thread.
* @author John Thompson, NZDL Project, University of Waikato
*/
public class FileManager
{
/** Not only the queue of files to be moved, but also the object that moves them. */
static private FileQueue file_queue = null;
public static int FILE_TYPE = 0;
public static int FOLDER_TYPE = 1;
protected static File startup_directory = null;
/** Constructor.
* @see org.greenstone.gatherer.file.FileQueue
*/
public FileManager()
{
file_queue = new FileQueue();
file_queue.start();
}
/** Determine what action should be carried out by the file queue, and add all of the necessary file jobs. */
public void action(DragComponent source, FileNode[] source_nodes, DragComponent target, FileNode target_node)
{
// Check there is something to do
if (source_nodes == null || source_nodes.length == 0) {
return;
}
// We need a unique ID for each file task
long id = System.currentTimeMillis();
// If source and target are the same we're moving
if (source == target) {
// Start a new move FileTask and we're done
(new FileTask(id, source, source_nodes, target, target_node, FileJob.MOVE)).start();
return;
}
// If target isn't the RecycleBin, we're copying
if (!(target instanceof RecycleBin)) {
// Start a new copy FileTask and we're done
(new FileTask(id, source, source_nodes, target, target_node, FileJob.COPY)).start();
return;
}
// We're deleting... but first make sure source isn't read-only
boolean read_only_source = false;
// The workspace tree is read-only...
if (source.toString().equals("Workspace")) {
read_only_source = true;
// ...except for files from the "Downloaded Files" folder
String downloaded_files_folder_path = Gatherer.getGLIUserCacheDirectoryPath();
for (int i = 0; i < source_nodes.length; i++) {
// Is this the "Downloaded Files" folder?
if (source_nodes[i].getFile().getAbsolutePath().startsWith(downloaded_files_folder_path)) {
read_only_source = false;
}
}
}
// The source is read-only, so tell the user and abort
if (read_only_source) {
JOptionPane.showMessageDialog(Gatherer.g_man, Dictionary.get("FileActions.Read_Only"), Dictionary.get("General.Error"), JOptionPane.ERROR_MESSAGE);
return;
}
// Start a new delete FileTask and we're done
(new FileTask(id, source, source_nodes, target, target_node, FileJob.DELETE)).start();
}
/** Retrieves the file queue object. */
public FileQueue getQueue()
{
return file_queue;
}
private class FileTask
extends Thread
{
private long id;
private DragComponent source;
private FileNode[] source_nodes;
private DragComponent target;
private FileNode target_node;
private byte type;
public FileTask(long id, DragComponent source, FileNode[] source_nodes, DragComponent target, FileNode target_node, byte type)
{
this.id = id;
this.source = source;
this.source_nodes = source_nodes;
this.target = target;
this.target_node = target_node;
this.type = type;
}
public void run()
{
// Reset the progress bar and set it to indeterminate while calculating its size
GProgressBar progress_bar = file_queue.getProgressBar();
progress_bar.reset();
progress_bar.setIndeterminate(true);
// Calculate the progress bar size
boolean cancelled = file_queue.calculateSize(source_nodes);
if (!cancelled) {
file_queue.addJob(id, source, source_nodes, target, target_node, type);
if (Gatherer.isGsdlRemote) {
String collection_name = CollectionManager.getLoadedCollectionName();
// Perform the appropriate action based on the job type (RemoteGreenstoneServer will queue)
if (type == FileJob.COPY) {
// Copies: upload all the files at once in one zip file
File[] source_files = new File[source_nodes.length];
for (int i = 0; i < source_nodes.length; i++) {
source_files[i] = source_nodes[i].getFile();
}
Gatherer.remoteGreenstoneServer.uploadFilesIntoCollection(collection_name, source_files, target_node.getFile());
}
else if (type == FileJob.DELETE) {
// Deletes: delete each top-level file/directory one at a time
for (int i = 0; i < source_nodes.length; i++) {
Gatherer.remoteGreenstoneServer.deleteCollectionFile(collection_name, source_nodes[i].getFile());
}
}
else if (type == FileJob.MOVE) {
// Moves: move each top-level file/directory one at a time
for (int i = 0; i < source_nodes.length; i++) {
Gatherer.remoteGreenstoneServer.moveCollectionFile(
collection_name, source_nodes[i].getFile(), target_node.getFile());
}
}
}
}
progress_bar.setIndeterminate(false);
progress_bar.clear();
}
}
public void explodeMetadataDatabase(File file)
{
// This must go in a separate thread because we need the progress bar to work (remote Greenstone server)
new ExplodeMetadataDatabasePromptTask(file).start();
}
// Works with replace_srcdoc_with_html.pl
public void replaceSrcDocWithHtml(File[] files)
{
// This must go in a separate thread because we need the progress bar to work (remote Greenstone server)
new ReplaceSrcDocWithHtmlPromptTask(files).start();
}
private class ExplodeMetadataDatabasePromptTask
extends Thread
{
private File metadata_database_file = null;
public ExplodeMetadataDatabasePromptTask(File metadata_database_file)
{
this.metadata_database_file = metadata_database_file;
}
public void run()
{
ExplodeMetadataDatabasePrompt emp = new ExplodeMetadataDatabasePrompt(metadata_database_file);
}
}
// Works with replace_srcdoc_with_html.pl
private class ReplaceSrcDocWithHtmlPromptTask
extends Thread
{
private File[] replace_these_srcdoc_files = null;
public ReplaceSrcDocWithHtmlPromptTask(File[] replace_these_srcdoc_files)
{
this.replace_these_srcdoc_files = replace_these_srcdoc_files;
}
public void run()
{
ReplaceSrcDocWithHtmlPrompt prompt = new ReplaceSrcDocWithHtmlPrompt(replace_these_srcdoc_files);
}
}
public void openFileInExternalApplication(File file)
{
// This must go in a separate thread because we need the progress bar to work (remote Greenstone server)
new OpenFileInExternalApplicationTask(file).start();
}
private class OpenFileInExternalApplicationTask
extends Thread
{
private File file = null;
public OpenFileInExternalApplicationTask(File file)
{
this.file = file;
}
public void run()
{
// If we're using a remote Greenstone server, we need to download the file before viewing it...
if (Gatherer.isGsdlRemote) {
// ... but only if it is inside the collection and we haven't already downloaded it
if (file.getAbsolutePath().startsWith(Gatherer.getCollectDirectoryPath()) && file.length() == 0) {
if (Gatherer.remoteGreenstoneServer.downloadCollectionFile(
CollectionManager.getLoadedCollectionName(), file).equals("")) {
// Something has gone wrong downloading the file
return;
}
}
}
// View the file in an external application
Gatherer.spawnApplication(file);
}
}
public void newDummyDoc(DragTree tree, CollectionTreeNode parent_node){
newFolderOrDummyDoc(tree, parent_node, FILE_TYPE);
}
public void newFolder(DragTree tree, CollectionTreeNode parent_node) {
newFolderOrDummyDoc(tree, parent_node, FOLDER_TYPE);
}
protected void newFolderOrDummyDoc(DragTree tree, CollectionTreeNode parent_node, int type) {
(new NewFolderOrDummyDocumentTask(tree, parent_node, type)).start();
}
private class NewFolderOrDummyDocumentTask
extends Thread
{
private DragTree tree = null;
private CollectionTreeNode parent_node = null;
private int type;
public NewFolderOrDummyDocumentTask(DragTree tree, CollectionTreeNode parent_node, int type)
{
this.tree = tree;
this.parent_node = parent_node;
this.type = type;
}
public void run()
{
// Ask the user for the directories name.
String extension = "";
if (type == FILE_TYPE) {
extension = ".nul";
}
NewFolderOrFilePrompt new_folder_prompt = new NewFolderOrFilePrompt(parent_node, type, extension);
String name = new_folder_prompt.display();
new_folder_prompt.dispose();
new_folder_prompt = null;
// And if the name is non-null...
if (name != null) {
FileSystemModel model = (FileSystemModel) tree.getModel();
File folder_file = new File(parent_node.getFile(), name);
//... check if it already exists.
if (folder_file.exists()) {
if (type == FILE_TYPE) {
JOptionPane.showMessageDialog(Gatherer.g_man, Dictionary.get("FileActions.File_Already_Exists_No_Create", name), Dictionary.get("General.Error"), JOptionPane.ERROR_MESSAGE);
}
else {
JOptionPane.showMessageDialog(Gatherer.g_man, Dictionary.get("FileActions.Folder_Already_Exists", name), Dictionary.get("General.Error"), JOptionPane.ERROR_MESSAGE);
}
}
// Otherwise create it.
else {
try {
if (type == FILE_TYPE) {
folder_file.createNewFile();
if (Gatherer.isGsdlRemote) {
Gatherer.remoteGreenstoneServer.uploadCollectionFile(
CollectionManager.getLoadedCollectionName(), folder_file);
}
}
else {
folder_file.mkdirs();
if (Gatherer.isGsdlRemote) {
Gatherer.remoteGreenstoneServer.newCollectionDirectory(
CollectionManager.getLoadedCollectionName(), folder_file);
}
}
// Update the parent node to show the new folder
parent_node.refresh();
// Refresh workspace tree (collection tree is done automatically)
Gatherer.g_man.refreshWorkspaceTree(DragTree.COLLECTION_CONTENTS_CHANGED);
}
catch (Exception exception) {
if (type == FILE_TYPE) {
JOptionPane.showMessageDialog(Gatherer.g_man, Dictionary.get("FileActions.File_Create_Error", name), Dictionary.get("General.Error"), JOptionPane.ERROR_MESSAGE);
}
else {
JOptionPane.showMessageDialog(Gatherer.g_man, Dictionary.get("FileActions.Folder_Create_Error", name), Dictionary.get("General.Error"), JOptionPane.ERROR_MESSAGE);
}
}
}
folder_file = null;
model = null;
}
name = null;
}
}
public void renameCollectionFile(CollectionTree collection_tree, CollectionTreeNode collection_tree_node)
{
// This must go in a separate thread because we need the progress bar to work (remote Greenstone server)
new RenameTask(collection_tree, collection_tree_node).start();
}
private class RenameTask
extends Thread
{
private CollectionTree collection_tree = null;
private CollectionTreeNode collection_tree_node = null;
public RenameTask(CollectionTree collection_tree, CollectionTreeNode collection_tree_node)
{
this.collection_tree = collection_tree;
this.collection_tree_node = collection_tree_node;
}
public void run()
{
RenamePrompt rename_prompt = new RenamePrompt(collection_tree_node);
String new_collection_file_name = rename_prompt.display();
rename_prompt.dispose();
rename_prompt = null;
if (new_collection_file_name != null) {
File collection_file = collection_tree_node.getFile();
File new_collection_file = new File(collection_file.getParentFile(), new_collection_file_name);
CollectionTreeNode new_collection_tree_node = new CollectionTreeNode(new_collection_file);
file_queue.addJob(System.currentTimeMillis(), collection_tree, new FileNode[] { collection_tree_node }, collection_tree, new_collection_tree_node, FileJob.RENAME);
if (Gatherer.isGsdlRemote) {
Gatherer.remoteGreenstoneServer.moveCollectionFile(
CollectionManager.getLoadedCollectionName(), collection_file, new_collection_file);
}
}
}
}
public void replaceCollectionFile(CollectionTree collection_tree, CollectionTreeNode collection_tree_node)
{
// This must go in a separate thread because we need the progress bar to work (remote Greenstone server)
new ReplaceTask(collection_tree, collection_tree_node).start();
}
private class ReplaceTask
extends Thread
{
private CollectionTree collection_tree = null;
private CollectionTreeNode collection_tree_node = null;
public ReplaceTask(CollectionTree collection_tree, CollectionTreeNode collection_tree_node)
{
this.collection_tree = collection_tree;
this.collection_tree_node = collection_tree_node;
}
public void run()
{
JFileChooser file_chooser = new JFileChooser(startup_directory);
file_chooser.setDialogTitle(Dictionary.get("ReplacePrompt.Title"));
File new_file = null;
int return_val = file_chooser.showOpenDialog(null);
if(return_val == JFileChooser.APPROVE_OPTION) {
new_file = file_chooser.getSelectedFile();
}
if (new_file == null) {
return;
}
// save the search path for next time
startup_directory = new_file.getParentFile();
// make up a node for the file to bring in
WorkspaceTreeNode source_node = new WorkspaceTreeNode(new_file);
File target_directory = collection_tree_node.getFile().getParentFile();
CollectionTreeNode new_collection_tree_node = new CollectionTreeNode(new File(target_directory, new_file.getName()));
// copy the new file in - but don't bring metadata
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);
if (Gatherer.isGsdlRemote) {
String collection_name = CollectionManager.getLoadedCollectionName();
Gatherer.remoteGreenstoneServer.deleteCollectionFile(collection_name, collection_tree_node.getFile());
Gatherer.remoteGreenstoneServer.uploadFilesIntoCollection(collection_name, new File[] { new_file }, target_directory);
}
// do a replace of old file with new file
file_queue.addJob(System.currentTimeMillis(), collection_tree, new FileNode[] { collection_tree_node }, collection_tree, new_collection_tree_node, FileJob.REPLACE);
}
}
}