/cvmfs/atlas.cern.ch/repo/sw/ASG/AnalysisBase/2.4.28/AsgTools/AsgTools/MsgStream.h

// Dear emacs, this is -*- c++ -*-
// $Id: MsgStream.h 687011 2015-08-03 09:25:07Z krasznaa $
#ifndef ASGTOOLS_MSGSTREAM_H
#define ASGTOOLS_MSGSTREAM_H

// System include(s):
#include <string>
#include <sstream>

// Local include(s):
#include "AsgTools/AsgToolsConf.h"
#include "AsgTools/MsgLevel.h"
#include "AsgTools/IAsgTool.h"

#ifdef ASGTOOL_ATHENA
#   include "GaudiKernel/MsgStream.h"
#elif defined(ASGTOOL_STANDALONE)

class MsgStream : public std::ostringstream {

public:
   MsgStream( const asg::IAsgTool* tool = 0 );
   MsgStream( const std::string& name );
   MsgStream( void* msgSvc, const std::string& name, int buffer_length = 128 );


   MsgStream& operator<< ( MsgStream& ( *_f )( MsgStream& ) );
   MsgStream& operator<< ( std::ostream& ( *_f )( std::ostream& ) );
   MsgStream& operator<< ( std::ios& ( *_f )( std::ios& ) );

   MsgStream& operator<< ( MSG::Level lvl );

   template< class T >
   MsgStream& operator<< ( const T& arg ) {
      ( * ( std::ostringstream* ) this ) << arg;
      return *this;
   }


   MsgStream& doOutput();

   static void setSourceWidth( size_t width );


   void setLevel( MSG::Level lvl );

   bool msgLevel( MSG::Level lvl ) const;

   MSG::Level level() const;
   MSG::Level& mutable_level();

   MSG::Level currentLevel() const;


   const std::string& name() const;
   void setName( const std::string& name );

private:
   const asg::IAsgTool* m_tool;
   std::string m_name;
   MSG::Level m_lvl;
   MSG::Level m_reqlvl;
   static size_t s_sourceWidth;

}; // class MsgStream

inline MsgStream& endmsg( MsgStream& s ) {
   return s.doOutput();
}
#define endreq endmsg

#else
#   error "What environment are we in?!?"
#endif // Environment selection
#endif // ASGTOOLS_MSGSTREAM_H

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