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/*
* Copyright (C) 2008 Zeeshan Ali <zeenix@gmail.com>.
* Copyright (C) 2008 Nokia Corporation, all rights reserved.
*
* Author: Zeeshan Ali <zeenix@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library 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 Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
using Rygel;
using GUPnP;
using DBus;
/**
* Represents Tracker category.
*/
public class Rygel.TrackerContainer : MediaContainer {
/* class-wide constants */
private const string TRACKER_SERVICE = "org.freedesktop.Tracker";
private const string TRACKER_PATH = "/org/freedesktop/Tracker";
private const string TRACKER_IFACE = "org.freedesktop.Tracker";
private const string FILES_PATH = "/org/freedesktop/Tracker/Files";
private const string FILES_IFACE = "org.freedesktop.Tracker.Files";
private const string METADATA_PATH = "/org/freedesktop/Tracker/Metadata";
private const string METADATA_IFACE = "org.freedesktop.Tracker.Metadata";
public static dynamic DBus.Object metadata;
public static dynamic DBus.Object files;
public static dynamic DBus.Object tracker;
public HTTPServer http_server;
public string category;
/* UPnP class of items under this container */
public string child_class;
// Class constructor
static construct {
DBus.Connection connection;
try {
connection = DBus.Bus.get (DBus.BusType.SESSION);
} catch (DBus.Error error) {
critical ("Failed to connect to Session bus: %s\n",
error.message);
}
TrackerContainer.metadata =
connection.get_object (TrackerContainer.TRACKER_SERVICE,
TrackerContainer.METADATA_PATH,
TrackerContainer.METADATA_IFACE);
TrackerContainer.files =
connection.get_object (TrackerContainer.TRACKER_SERVICE,
TrackerContainer.FILES_PATH,
TrackerContainer.FILES_IFACE);
TrackerContainer.tracker =
connection.get_object (TrackerContainer.TRACKER_SERVICE,
TrackerContainer.TRACKER_PATH,
TrackerContainer.TRACKER_IFACE);
}
public TrackerContainer (string id,
string parent_id,
string title,
string category,
string child_class,
HTTPServer http_server) {
base (id, parent_id, title, 0);
this.category = category;
this.child_class = child_class;
this.http_server = http_server;
}
public override void serialize (DIDLLiteWriter didl_writer)
throws GLib.Error {
/* Update the child count */
this.child_count = this.get_children_count ();
base.serialize (didl_writer);
}
private uint get_children_count () {
string[][] stats;
try {
stats = TrackerContainer.tracker.GetStats ();
} catch (GLib.Error error) {
critical ("error getting tracker statistics: %s", error.message);
return 0;
}
uint count = 0;
for (uint i = 0; i < stats.length; i++) {
if (stats[i][0] == this.category)
count = stats[i][1].to_int ();
}
return count;
}
public uint add_children_from_db (DIDLLiteWriter didl_writer,
uint offset,
uint max_count,
out uint child_count) {
string[] children;
children = this.get_children_from_db (offset,
max_count,
out child_count);
if (children == null)
return 0;
/* Iterate through all items */
for (uint i = 0; i < children.length; i++)
this.add_item_from_db (didl_writer, children[i]);
return children.length;
}
private string[]? get_children_from_db (uint offset,
uint max_count,
out uint child_count) {
string[] children = null;
child_count = this.get_children_count ();
try {
children =
TrackerContainer.files.GetByServiceType (0,
this.category,
(int) offset,
(int) max_count);
} catch (GLib.Error error) {
critical ("error: %s", error.message);
return null;
}
return children;
}
public bool add_item_from_db (DIDLLiteWriter didl_writer,
string path) {
MediaItem item = null;
try {
item = this.get_item_from_db (path);
} catch (GLib.Error error) {
critical ("Failed to fetch item %s. Reason: %s",
item.id,
error.message);
return false;
}
try {
item.serialize (didl_writer);
} catch (GLib.Error error) {
critical ("Failed to serialize item %s. Reason: %s",
item.id,
error.message);
return false;
}
return true;
}
public static string get_file_category (string uri) throws GLib.Error {
string category;
category = TrackerContainer.files.GetServiceType (uri);
return category;
}
public MediaItem get_item_from_db (string path) throws GLib.Error {
MediaItem item;
if (this.child_class == MediaItem.VIDEO_CLASS) {
item = new TrackerVideoItem (path, path, this);
} else if (this.child_class == MediaItem.IMAGE_CLASS) {
item = new TrackerImageItem (path, path, this);
} else {
item = new TrackerMusicItem (path, path, this);
}
return item;
}
}
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