IssueFactory.hpp

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/*
 *  IssueFactory.h
 *  ers
 *
 *  Created by Matthias Wiesmann on 30.11.04.
 *  Modified by Serguei Kolos on 10.08.05.
 *  Copyright 2005 CERN. All rights reserved.
 *
 */
 
#ifndef ERS_ISSUE_FACTORY
#define ERS_ISSUE_FACTORY
 
#include <chrono>
#include <string>
#include <vector>
#include <map>
 
#include <ers/Severity.hpp>
 
using std::chrono::system_clock;
  
namespace ers
{
    class Issue; 
    class Context;
    template <class > class SingletonCreator;
    
    class IssueFactory
    {
    template <class > friend class SingletonCreator;
        
    typedef Issue * (*IssueCreator)( const ers::Context & );
    typedef std::map<std::string,IssueCreator> FunctionMap;
 
      public:
    static IssueFactory & instance();                   
    Issue * create( const std::string & name,
                const Context & context ) const ;           
        Issue * create( const std::string & name,
            const std::list<std::string> & inheritance,
                const Context & context,
                        Severity severity,
                        const system_clock::time_point & time,
                        const std::string & message,
                        const std::vector<std::string> & qualifiers,
                        const std::map<std::string, std::string> & parameters,
                        const Issue * cause = 0 ) const ;           
        void register_issue( const std::string & name, IssueCreator creator );  
      private:
    IssueFactory()
        { ; }
        
    FunctionMap m_creators;     
    };
 
    std::ostream& operator<<(std::ostream&, const IssueFactory& factory);         
}
 
#endif