logging_interface.h

/*
MIT License Block

Copyright (c) 2016 Alex Barry

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/

#ifndef AOSSL_LOGGING_INCLUDE_LOGGING_INTERFACE_H_
#define AOSSL_LOGGING_INCLUDE_LOGGING_INTERFACE_H_

#include <log4cpp/Category.hh>
#include <string>
#include <exception>

const int AOSSL_LOG_DEBUG = 0;
const int AOSSL_LOG_INFO = 1;
const int AOSSL_LOG_ERROR = 2;

struct LoggingException: public std::exception {
  std::string int_msg;
  const char * what_str;

  inline LoggingException(std::string msg) {
    int_msg = "Error in Logging Driver: " + msg;
    what_str = int_msg.c_str();
  }

  LoggingException() {}
  ~LoggingException() throw() {}

  const char * what() const throw() {
    return what_str;
  }
};

class LoggingCategoryInterface {
 public:
  virtual ~LoggingCategoryInterface() {}

  // Exposures that log to the sepcified category


  virtual void debug(std::string msg) = 0;


  virtual void error(std::string msg) = 0;


  virtual void info(std::string msg) = 0;


  virtual void debug(const char * msg) = 0;


  virtual void error(const char * msg) = 0;


  virtual void info(const char * msg) = 0;


  virtual void debug(int msg) = 0;


  virtual void error(int msg) = 0;


  virtual void info(int msg) = 0;


  virtual void debug(float msg) = 0;


  virtual void error(float msg) = 0;

  virtual void info(float msg) = 0;


  virtual void debug(double msg) = 0;


  virtual void error(double msg) = 0;


  virtual void info(double msg) = 0;
};

class LoggingInterface {
 public:
  virtual ~LoggingInterface() {}

  // Exposures that log to the root category


  virtual void debug(std::string msg) = 0;


  virtual void error(std::string msg) = 0;


  virtual void info(std::string msg) = 0;


  virtual void debug(const char * msg) = 0;


  virtual void error(const char * msg) = 0;


  virtual void info(const char * msg) = 0;


  virtual void debug(int msg) = 0;


  virtual void error(int msg) = 0;


  virtual void info(int msg) = 0;


  virtual void debug(float msg) = 0;


  virtual void error(float msg) = 0;


  virtual void info(float msg) = 0;


  virtual void debug(double msg) = 0;


  virtual void error(double msg) = 0;


  virtual void info(double msg) = 0;


  virtual LoggingCategoryInterface* get_category(std::string name) = 0;
};

extern LoggingInterface *logging;

#endif  // AOSSL_LOGGING_INCLUDE_LOGGING_INTERFACE_H_