CommandHandler.h

#pragma once

#include <string>

#include "core/Command.h"
#include "core/Result.h"
#include "core/Answer.h"

namespace BeeeOn {

class Answer;

/*
 * Interface for handling commands. It contains a method to check
 * whether the command is supported and the method to execute
 * such command.
 */
class CommandHandler {
public:
        CommandHandler();
        virtual ~CommandHandler();

        /*
         * Returns true if the given command can be handled by this handler.
         */
        virtual bool accept(const Command::Ptr cmd) = 0;

        /*
         * This method is likely to be called concurrently. It must be
         * implemented in a thread-safe way. It must create the Result
         * and it must add the Answer.
         *
         * For example: Mutex::ScopedLock lock(m_mutex);
         */
        virtual void handle(Command::Ptr cmd, Answer::Ptr answer) = 0;
};

}