Warning.h

//-*-C++-*-
/***************************************************************************
 *
 *   Copyright (C) 2006 by Willem van Straten
 *   Licensed under the Academic Free License version 2.1
 *
 ***************************************************************************/
 
// psrchive/Util/genutil/Warning.h
 
#ifndef __Warning_h
#define __Warning_h
 
#include "ThreadContext.h"
 
#include <map>
#include <string>
#include <sstream>
#include <iostream>
 
typedef std::ostream& (*manipulator) ( std::ostream& os );


class Warning {
 
  public:

  static bool verbose;

  Warning (std::ostream& output = std::cerr);

  virtual ~Warning ();

  std::string prefix;

  bool first;

  bool all;

  bool summary;

  template<class T>
  friend Warning& operator<< (Warning& warning, const T& t)
  {
    ThreadContext::Lock (warning.context);
 
    if (verbose)
      std::cerr << "Warning::operator<<(T) t=" << t << std::endl;
 
    warning.buffer << t;
    warning.message += "*";
    return warning;
  }

  friend Warning& operator<< (Warning& warning, const char* t);

  friend Warning& operator<< (Warning& warning, manipulator m);
 
protected:

  std::map<std::string, unsigned> messages;

  std::ostream& output;

  std::ostringstream buffer;

  std::string message;

  void insertion (manipulator m);

  ThreadContext* context;
 
};
 
 
#endif