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/*
* Copyright (C) 2008 OpenedHand Ltd.
* Copyright (C) 2009 Nokia Corporation.
*
* Author: Jorn Baayen <jorn@openedhand.com>
* Zeeshan Ali (Khattak) <zeeshanak@gnome.org>
* <zeeshan.ali@nokia.com>
*
* Rygel is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Rygel 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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 GUPnP;
using Gee;
// Helper class for building LastChange messages
internal class Rygel.ChangeLog : Object {
public unowned Service service { get; set; }
private string service_ns;
private StringBuilder str;
private HashMap<string, string> hash;
private uint timeout_id = 0;
public ChangeLog (Service? service, string service_ns) {
this.service = service;
this.service_ns = service_ns;
this.str = new StringBuilder ();
this.hash = new HashMap<string, string> ();
}
~ChangeLog () {
if (this.timeout_id != 0) {
Source.remove (this.timeout_id);
}
}
private bool timeout () {
// Emit notification
this.service.notify ("LastChange", typeof (string), this.finish ());
debug ("LastChange sent");
// Reset
this.hash.clear ();
this.str.erase (0, -1);
this.timeout_id = 0;
return false;
}
private void ensure_timeout () {
// Make sure we have a notification timeout
if (this.service != null && this.timeout_id == 0) {
debug ("Setting up timeout for LastChange");
this.timeout_id = Timeout.add (200, this.timeout);
}
}
public void log (string variable, string value) {
debug (@"'%s = %s' logged", variable, value);
this.hash.set (variable, "<%s val=\"%s\"/>".printf (variable, value));
this.ensure_timeout ();
}
public void log_with_channel (string variable,
string value,
string channel) {
this.hash.set (variable,
"<%s val=\"%s\" channel=\"%s\"/>".printf (variable,
value,
channel));
this.ensure_timeout ();
}
public string finish () {
this.str.append ("<Event xmlns=\"" +
this.service_ns +
"\"><InstanceID val=\"0\">");
foreach (string line in this.hash.values) {
this.str.append (line);
}
this.str.append ("</InstanceID></Event>");
return this.str.str;
}
}
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