Command.h

#pragma once

#include <string>

#include <Poco/AutoPtr.h>
#include <Poco/RefCountedObject.h>
#include <Poco/SharedPtr.h>

#include "core/Answer.h"
#include "core/Result.h"
#include "util/Castable.h"

namespace BeeeOn {

class CommandDispatcher;
class CommandHandler;
class CommandSender;

/*
 * Abstract class for Commands, which will be sent within the gates.
 *
 * All Command objects should have a protected destructor,
 * to forbid explicit use of delete.
 */
class Command : public Poco::RefCountedObject, public Castable {
        // This way, we are hiding setSendingHandler() from the outer world.
        friend CommandDispatcher;
        friend CommandSender;
public:
        typedef Poco::AutoPtr<Command> Ptr;

        Command();

        std::string name() const;

        CommandHandler* sendingHandler() const;

        virtual std::string toString() const;

        virtual Result::Ptr deriveResult(Answer::Ptr answer) const;

protected:
        void setSendingHandler(CommandHandler *sender);

        virtual ~Command();

protected:
        CommandHandler *m_sendingHandler;
};

}