writer.hpp

/*
  ANCH Framework: ANother C++ Hack is a C++ framework based on C++11 standard
  Copyright (C) 2012 Vincent Lachenal

  This file is part of ANCH Framework.

  ANCH Framework is free software: you can redistribute it and/or modify
  it under the terms of the GNU Lesser General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  ANCH Framework is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public License
  along with ANCH Framework.  If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _ANCH_LOGGER_WRITER_H_
#define _ANCH_LOGGER_WRITER_H_

#include <iostream>

#include "logger/levels.hpp"
#include "logger/formatter/messageFormatter.hpp"


namespace anch {
  namespace logger {

    class Writer {
      // Attributes +
    protected:
      std::ostream* _output;

      anch::logger::formatter::MessageFormatter _formatter;

    private:
      std::string _fileName;

      int _maxSize;

      int _maxIndex;

      int _fileIndex;
      // Attributes -

    public:
      // Constructors +
      Writer(const std::string& fileName,
             const std::string& linePattern,
             int maxSize = 0,
             int maxIndex = 0);

      Writer(std::ostream* output, const std::string& linePattern);
      // Constructors -

      // Destructor +
      virtual ~Writer();
      // Destructor -

    public:
      virtual void write(const std::string& category,
                         const anch::logger::Level& level,
                         const std::string& message);

    protected:
      inline bool rotate() const {
        return (_maxSize > 0 && _fileName != "" && _output->tellp() >= _maxSize);
      }

      void rotateFiles();

    };

  }
}

#endif // _ANCH_LOGGER_WRITER_H_