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/*
* Zeitgeist
*
* Copyright (C) 2010 Michal Hruby <michal.mhr@gmail.com>
*
* This program 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 3 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 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, see <http://www.gnu.org/licenses/>.
*
* Authored by Michal Hruby <michal.mhr@gmail.com>
*
*/
using Zeitgeist;
public abstract class DataProvider : Object
{
public abstract string unique_id { get; construct set; }
public abstract string name { get; construct set; }
public abstract string description { get; construct set; }
public abstract DataHub datahub { get; construct set; }
public abstract bool enabled { get; set; default = true; }
public abstract bool register { get; construct set; default = true; }
public int64 last_timestamp { get; set; }
public virtual void start ()
{
items_available ();
}
public virtual void stop ()
{
}
protected abstract List<Event> _get_items ();
// DataHub will call get_items when items_available is emitted
public List<Event> get_items ()
{
if (enabled) return _get_items ();
return new List<Event> ();
}
public signal void items_available ();
}
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