DatabaseFactory.h

#ifndef DatabaseFactory_h
#define DatabaseFactory_h
 
/* SPDX-License-Identifier: CC0-1.0 */
 
#include <string>
#include <vector>
#include <iostream>
 
#include <QSqlDatabase>
 
#include "CollectorMap.h"
#include "IException.h"
 
namespace Isis {
 
  class DbAccess;
  class DbProfile;
 
  class DatabaseFactory  {
    public:
      static DatabaseFactory *getInstance();
 
      void setDefault(const QString &name) {
        _defDatabase = name;
      }
 
      QString getDefault() const {
        return (_defDatabase);
      }
 
      bool addAccessProfile(const QString &profileFile);
      void addProfile(const DbProfile &profile);
      std::vector<QString> getProfileList() const;
      DbProfile getProfile(const QString &name = "") const;
 
      QString getDefaultProfileName() const {
        return (_defProfName);
      }
 
      bool setDefaultProfileName(const QString &name) {
        _defProfName = name;
        return (_profiles.exists(name));
      }
 
      std::vector<QString> available() const;
      bool isDriverAvailable(const QString &driver) const;
      bool isAvailable(const QString &dbname = "") const;
      bool isConnected(const QString &dbname) const;
      bool isPersistant(const QString &name) const;
 
      QSqlDatabase create(const QString &driver, const QString &dbname);
      QSqlDatabase create(const QString &name);
      void add(const QSqlDatabase &db, const QString &name,
               bool setAsDefault = false);
      void remove(const QString &dbname);
      void destroy(const QString &dbname);
 
    private:
      //  Gain access through Singleton interface
      DatabaseFactory();
      ~DatabaseFactory();
 
      static void DieAtExit();
 
      static DatabaseFactory *_factory;  
 
      typedef CollectorMap<IString, QString, NoCaseStringCompare> Drivers;
      typedef CollectorMap<IString, DbProfile, NoCaseStringCompare> Profiles;
      typedef CollectorMap<IString, QSqlDatabase, NoCaseStringCompare> Databases;
 
      QString _defProfName;         
      Profiles    _profiles;            
      QString _defDatabase;         
      Databases   _dbList;              
 
      void init();
      void initPreferences();
      void loadDrivers();
      Drivers getResourceList(bool drivers, bool connections) const;
      void selfDestruct();
 
  };
}
#endif