/home/tobi/workspace/solarpowerlog/src/DataFilters/interfaces/IDataFilter.h

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/* ----------------------------------------------------------------------------
 solarpowerlog
 Copyright (C) 2009  Tobias Frost

 This file is part of solarpowerlog.

 Solarpowerlog is free software; However, it is dual-licenced
 as described in the file "COPYING".

 For this file (IDataFilter.h), the license terms are:

 You can redistribute it and/or  modify it under the terms of the GNU Lesser
 General Public License (LGPL) 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 Library General Public
 License along with this proramm; if not, see
 <http://www.gnu.org/licenses/>.
 ----------------------------------------------------------------------------
 */


#ifndef IDATAFILTER_H_
#define IDATAFILTER_H_

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "patterns/IObserverObserver.h"
#include "patterns/IObserverSubject.h"
#include "Inverters/interfaces/InverterBase.h"
#include "patterns/ICommand.h"

class IDataFilter : public IObserverObserver ,
     public IInverterBase // The inverter, though the capabilites, also provides the
// interface for being a subject (observer pattern)
{
protected:
     IDataFilter( const string &name, const string & configurationpath ) :
          IInverterBase(name, configurationpath, "datafilter")
     { }

public:
     virtual ~IDataFilter();

     virtual void ExecuteCommand( const ICommand *)
     { }

     // Just a reminder: You need to override that.
     virtual bool CheckConfig() = 0;

     // Just another reminder. Update is called by the subject,
     // when new data arrives. So you defintly want to override this.
     virtual void Update( const IObserverSubject *subject ) = 0;

     virtual ICapaIterator* GetCapaNewIterator();

     virtual CCapability *GetConcreteCapability( const string &identifier );

protected:
     IInverterBase *base;

};

#endif /* IDATAFILTER_H_ */