logger.hpp

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#ifndef CGMRES__LOGGER_HPP_
#define CGMRES__LOGGER_HPP_
 
#include <fstream>
#include <string>
 
#include "cgmres/types.hpp"
#include "cgmres/timer.hpp"
 
 
namespace cgmres {
 
class Logger {
public:
  explicit Logger(const std::string& log_name)
    : log_name_(log_name),
       t_log_(log_name+ "_t.log"), 
       x_log_(log_name+ "_x.log"), 
       u_log_(log_name + "_u.log"), 
       opterr_log_(log_name + "_opterr.log") {
  }
 
  ~Logger() {
    t_log_.close();
    x_log_.close();
    u_log_.close();
    opterr_log_.close();
  }
 
  template <typename StateVectorType, typename ControlInputVectorType>
  void save(const Scalar t, const MatrixBase<StateVectorType>& x, 
            const MatrixBase<ControlInputVectorType >& u,
            const double opterr) {
    t_log_ << t << '\n';
    x_log_ << x.transpose() << '\n';
    u_log_ << u.transpose() << '\n';
    opterr_log_ << opterr << '\n';
  }
 
  void save(const TimingProfile& timing_profile) const {
    std::ofstream timing_log(log_name_ + "_timing_profile.log");
    timing_log << timing_profile;
    timing_log.close();
  }
 
private:
  std::string log_name_;
  std::ofstream t_log_, x_log_, u_log_, opterr_log_;
};
 
} // namespace cgmres
 
#endif // CGMRES__LOGGER_HPP_