LogControl.hpp

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#ifndef CA_MGM_LOGCONTROL_H
#define CA_MGM_LOGCONTROL_H

#include <iosfwd>

#include <ca-mgm/Logger.hpp>
#include <ca-mgm/PtrTypes.hpp>
#include <ca-mgm/PathName.hpp>

namespace ca_mgm
{ 

  namespace log
  { 

    struct LineWriter
    {
      virtual void writeOut( const std::string & /*formated_r*/ )
      {}
      virtual ~LineWriter()
      {}
    };

    struct StreamLineWriter : public LineWriter
    {
      StreamLineWriter( std::ostream & str_r ) : _str( &str_r ) {}

      virtual void writeOut( const std::string & formated_r )
      { (*_str) << formated_r << std::endl; }

      protected:
        StreamLineWriter() : _str( 0 ) {}
        std::ostream *_str;
    };

    struct StdoutLineWriter : public StreamLineWriter
    {
      StdoutLineWriter();
    };

    struct StderrLineWriter : public StreamLineWriter
    {
      StderrLineWriter();
    };

    struct FileLineWriter : public StreamLineWriter
    {
      FileLineWriter( const path::PathName & file_r, mode_t mode_r = 0 );
      protected:
        shared_ptr<void> _outs;
    };

  } // namespace log



    //
    //  CLASS NAME : LogControl
    //
    class LogControl
    {
      friend std::ostream & operator<<( std::ostream & str, const LogControl & obj );

    public:
      static LogControl instance()
      { return LogControl(); }


      typedef log::LineWriter LineWriter;

      struct LineFormater
      {
        virtual std::string format( const std::string & /*group_r*/,
                                    logger::LogLevel    /*level_r*/,
                                    const char *        /*file_r*/,
                                    const char *        /*func_r*/,
                                    int                 /*line_r*/,
                                    const std::string & /*message_r*/ );
        virtual ~LineFormater() {}
      };

      struct ShortLineFormater : public ca_mgm::LogControl::LineFormater
      {
        virtual std::string format( const std::string &      group_r,
                                    ca_mgm::logger::LogLevel level_r,
                                    const char *             ,
                                    const char *             ,
                                    int                      ,
                                    const std::string &      message_r )
        {
           return ca_mgm::str::form( "%-5s %s - %s",
                                     ca_mgm::logger::logLevelToString( level_r).c_str(),
                                     group_r.c_str(), message_r.c_str());
        }
        virtual ~ShortLineFormater() {}
      };

    public:
      void setLineFormater( const shared_ptr<LineFormater> & formater_r );
      void setShortLineFormater();

    public:
      void logfile( const path::PathName & logfile_r );
      void logfile( const path::PathName & logfile_r, mode_t mode_r );

      void logNothing();

      void logToStdErr();

      bool isEnabledFor( logger::LogLevel level_r );

      void setLogLevel( logger::LogLevel level_r );

    public:
      shared_ptr<LineWriter> getLineWriter() const;

      void setLineWriter( const shared_ptr<LineWriter> & writer_r );

    private:
      LogControl()
      {}
    };

    std::ostream & operator<<( std::ostream & str, const LogControl & obj );

} // namespace ca_mgm
#endif // CA_MGM_LOGCONTROL_H