Responder.h

/*
 * Copyright (C) 2012 by Marc Boris Duerner
 * 
 * This library 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 2.1 of the License, or (at your option) any later version.
 * 
 * As a special exception, you may use this file as part of a free
 * software library without restriction. Specifically, if other files
 * instantiate templates or use macros or inline functions from this
 * file, or you compile this file and link it with other files to
 * produce an executable, this file does not by itself cause the
 * resulting executable to be covered by the GNU General Public
 * License. This exception does not however invalidate any other
 * reasons why the executable file might be covered by the GNU Library
 * General Public License.
 * 
 * This library 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 library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
 
#ifndef Pt_Http_Responder_h
#define Pt_Http_Responder_h
 
#include <Pt/Http/Api.h>
 
namespace Pt {
 
namespace System {
class EventLoop;
}
 
namespace Http {
 
class Request;
class Reply;
class Service;
class Acceptor;

class PT_HTTP_API Responder
{
    public:
        explicit Responder(Service& s);

        virtual ~Responder();

        Service& service()
        { return _service; }

        const Service& service() const
        { return _service; }

        void setAcceptor(Acceptor& a)
        { _acceptor = &a; }

        void beginRequest(Request& request, Reply& reply, 
                          System::EventLoop& loop);
        
        void readRequest(Request& request, Reply& reply, 
                         System::EventLoop& loop);

        void beginReply(const Request& request, Reply& reply, 
                        System::EventLoop& loop);

        void writeReply(const Request& request, Reply& reply, 
                        System::EventLoop& loop);
 
    protected:
        virtual void onBeginRequest(Request& request, Reply& reply, 
                                    System::EventLoop& loop) = 0;
        
        virtual void onReadRequest(Request& request, Reply& reply, 
                                   System::EventLoop& loop) = 0;

        virtual void onBeginReply(const Request& request, Reply& reply, 
                                  System::EventLoop& loop) = 0;

        virtual void onWriteReply(const Request& request, Reply& reply, 
                                  System::EventLoop& loop) = 0;
 
        // TODO: setFinished() -> setReady()

        void setReady(bool isFinished);

        void setFinished(bool isFinished);
 
    private:
        Service&  _service;
        Acceptor* _acceptor;
};
 
} // namespace Http
 
} // namespace Pt
 
#endif // Pt_Http_Responder_h