CommandDispatcher.h

#pragma once

#include <Poco/SharedPtr.h>

#include "core/CommandDispatcherListener.h"
#include "core/CommandHandler.h"
#include "util/EventSource.h"
#include "util/Loggable.h"

namespace BeeeOn {

class CommandDispatcher : protected Loggable {
public:
        virtual ~CommandDispatcher();

        /*
         * Register a command handler for command dispatching.
         */
        void registerHandler(Poco::SharedPtr<CommandHandler> handler);

        /*
         * The operation might be asynchronous. The result of the command can come
         * later. The given instance of result must ensure that the result
         * will be set to Result::SUCCESS or Result::ERROR after the execution of
         * CommandHandler::handle().
         */
        void dispatch(Command::Ptr cmd, Answer::Ptr answer);

        void registerListener(CommandDispatcherListener::Ptr listener);
        void setEventsExecutor(AsyncExecutor::Ptr executor);

protected:
        virtual void dispatchImpl(Command::Ptr cmd, Answer::Ptr answer) = 0;

protected:
        std::list<Poco::SharedPtr<CommandHandler>> m_commandHandlers;

private:
        EventSource<CommandDispatcherListener> m_eventSource;
};

}