#ifndef LAUNCHMETHOD_H#define LAUNCHMETHOD_H #include <string>#include <boost/program_options/options_description.hpp>#include <boost/program_options/variables_map.hpp> #include <memory> class Launcher; /** * @brief The LaunchMethod class * * To add a new backend to LaunchAPPL, start by subclassing this * and updating RegisterLaunchMethods() in LaunchAPPL.cc. */class LaunchMethod{public:    typedef boost::program_options::options_description options_description;    typedef boost::program_options::variables_map variables_map;     LaunchMethod();    virtual ~LaunchMethod();     /**     * @brief GetName     * @return the name of the launch method, as it will be specified on the command line     */    virtual std::string GetName() = 0;     /**     * @brief GetOptions     * @param desc     *     * Add any command line options for this LaunchMethod     * to the options_description structure.     */    virtual void GetOptions(options_description& desc);     /**     * @brief CheckPlatform     *     * Check whether this is the right kind of machine to use this method.     * For things like Apple's Classic Environment, which is only available on some system versions.     * The default implementation returns true.     */    virtual bool CheckPlatform();     /**     * @brief CheckOptions     * @param options     * @return are we ready to run?     *     * Check whether all necessary options have been specified.     * Don't output error messages here, this is also called when outputting usage information     */    virtual bool CheckOptions(variables_map& options);     /**     * @brief MakeLauncher     * @param options     * @return a new instance of a subclass of Launcher which will do the actual work     */    virtual std::unique_ptr<Launcher> MakeLauncher(variables_map& options) = 0; protected:}; #endif // LAUNCHMETHOD_H