AerosolDB.h

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#ifndef _atm_AerosolDB_h_
#define _atm_AerosolDB_h_

#include <atm/AerosolZone.h>

#include <boost/iterator/transform_iterator.hpp>

#include <map>
#include <string>


namespace atm {

  class AerosolDB {

  private:
    void CacheZones();

    typedef std::map<std::string, const AerosolZone*> InternalZoneMap;
    typedef InternalZoneMap::const_iterator InternalZoneIterator;

    InternalZoneMap fZoneMap;

    struct InternalZoneFunctor {
      const AerosolZone& operator()(const std::pair<std::string, const AerosolZone*>& pair) const
      { return *pair.second; }
    };
    
  public:
    typedef boost::transform_iterator<InternalZoneFunctor,
                                      InternalZoneIterator,
                                      const AerosolZone&> ZoneIterator;

    ZoneIterator ZonesBegin() const
    { return ZoneIterator(fZoneMap.begin()); }

    ZoneIterator ZonesEnd() const
    { return ZoneIterator(fZoneMap.end()); }

  private:
    AerosolDB();
    ~AerosolDB();
        
    std::string fAerosolIdString; // specifies the aerosol_id key for given time, software version, etc.
    
    friend class Atmosphere;

  };

} // namespace atm


#endif

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