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/**
* ======================== legal notice ======================
*
* File: DataManager.java Created: 13. June 2012, 04:57 Author: <a
* href="mailto:geronimo013@gmx.de">Geronimo</a> Project: cmpc - a java frontend
* (client) part of compound media player uses external players to play the
* media
*
* CMP - compound media player
*
* is a client/server mediaplayer intended to play any media from any
* workstation without the need to export or mount shares. cmps is an easy to
* use backend with a (ready to use) HTML-interface. Additionally the backend
* supports authentication via HTTP-digest authorization. cmpc is a client with
* vdr-like osd-menues.
*
* Copyright (c) 2012 Reinhard Mantey, some rights reserved! published under
* Creative Commons by-sa For details see
* http://creativecommons.org/licenses/by-sa/3.0/
*
* The cmp project's homepage is at
* http://projects.vdr-developer.org/projects/cmp
*
* --------------------------------------------------------------
*/
package de.schwarzrot.media.service;
import java.io.File;
import java.util.Map;
import java.util.Stack;
import javax.swing.SwingUtilities;
import javax.swing.tree.DefaultMutableTreeNode;
import ca.odell.glazedlists.EventList;
import de.schwarzrot.base.util.ApplicationServiceProvider;
import de.schwarzrot.base.util.SuccessHandler;
import de.schwarzrot.media.domain.AbstractMediaNode;
import de.schwarzrot.media.domain.Genre;
import de.schwarzrot.media.domain.Media;
import de.schwarzrot.media.util.ElementConsumer;
import de.schwarzrot.media.util.ListLoader;
public class DataManager implements Runnable, ElementConsumer<Media> {
public DataManager(File input, Map<File, DefaultMutableTreeNode> cache) {
this.input = input;
nodeCache = cache;
}
@Override
public void consumeElement(Media m) {
if (m.getParent() == null)
m.setParent(getGenre(m.getRealPath().getParentFile()));
mediaList.getReadWriteLock().writeLock().lock();
mediaList.add(m);
mediaList.getReadWriteLock().writeLock().unlock();
}
public void load(DefaultMutableTreeNode root, EventList<Media> mediaList, SuccessHandler successHandler) {
Thread backgroundThread = new Thread(this);
nodeCache.clear();
resultHandler = successHandler;
rootNode = root;
nodeCache.put(new File("/"), rootNode);
this.mediaList = mediaList;
backgroundThread.setName("load media list");
backgroundThread.setDaemon(true);
backgroundThread.start();
}
@Override
public void run() {
@SuppressWarnings("unchecked")
ListLoader<Media> ll = ApplicationServiceProvider.getService(ListLoader.class);
try {
long[] info = ll.loadFirst(this);
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
resultHandler.handleSuccess(); // feedback to main thread
}
});
ll.loadRest(info, this);
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
resultHandler.handleSuccess(); // feedback to main thread
}
});
} catch (final Throwable t) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
resultHandler.handleFailure(t); // feedback to main thread
}
});
}
}
protected void createGenre(File path) {
File tmp = path;
Stack<File> unknownGenres = new Stack<File>();
while (tmp != null && !nodeCache.containsKey(tmp)) {
unknownGenres.push(tmp);
tmp = tmp.getParentFile();
}
DefaultMutableTreeNode treeNode = tmp == null ? rootNode : nodeCache.get(tmp);
AbstractMediaNode media = (AbstractMediaNode) treeNode.getUserObject();
DefaultMutableTreeNode subNode = null;
Genre g = null;
if (media != null && media instanceof Genre)
g = (Genre) media;
while (unknownGenres.size() > 0) {
tmp = unknownGenres.pop();
g = new Genre(g, tmp);
subNode = new DefaultMutableTreeNode(g);
nodeCache.put(tmp, subNode);
treeNode.add(subNode);
treeNode = subNode;
}
}
protected Genre getGenre(File path) {
if (!nodeCache.containsKey(path))
createGenre(path);
DefaultMutableTreeNode n = nodeCache.get(path);
AbstractMediaNode rv = (AbstractMediaNode) n.getUserObject();
if (rv instanceof Genre)
return (Genre) rv;
return null;
}
@SuppressWarnings("unused")
private File input;
private SuccessHandler resultHandler;
private DefaultMutableTreeNode rootNode;
private EventList<Media> mediaList;
private Map<File, DefaultMutableTreeNode> nodeCache;
}
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