Flag.h

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#ifndef DQM_HcalCommon_Flag_h
#define DQM_HcalCommon_Flag_h

#include "DQM/HcalCommon/interface/HcalCommonHeaders.h"

namespace hcaldqm
{
    namespace flag
    {
        //  
        //  State Definition. In the increasing order of worsiness.
        //  States(as flags) can be added
        //  s1 + s2 = max(s1,s2) - that allows to set the worse of the 2
        //
        enum State
        {
            fNONE=0,            // No State - can't have... not used....
            fNCDAQ=1,           // not @cDAQ
            fNA = 2,            // Not Applicable
            fGOOD = 3,          // GOOD
            fPROBLEMATIC = 4,   // problem
            fBAD = 5,           //  bad
            fRESERVED = 6,      // reserved
            nState = 7
        };

        struct Flag
        {
            Flag() :
                _name("SOMEFLAG"), _state(fNA)
            {}
            Flag(std::string const& name, State s=fNA):
                _name(name), _state(s)
            {}
            Flag(Flag const& f):
                _name(f._name), _state(f._state)
            {}

            //
            //  add 2 flags
            //
            Flag operator+(Flag const& f)
            {
                return Flag(_name!=f._name?"SOMEFLAG":_name,
                    (State)(std::max(_state, f._state)));
            }

            //  
            //  add 2 flags and save
            //
            Flag& operator+=(Flag const& f)
            {
                _state = (State)(std::max(_state, f._state));
                return *this;
            }

            //  
            //  compare 2 flags
            //  
            bool operator==(Flag const& f)
            {
                return (_state==f._state && _name==f._name);
            }

            //  
            //  Assignment
            //
            Flag& operator=(Flag const& f)
            {
                _name = f._name;
                _state = f._state;
                return *this;
            }

            //  reset the state to NA
            void reset() {_state = fNA;}

            std::string _name;
            State _state;
        };
    }
}

#endif