PresenceFactory.h

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#ifndef FWCore_PluginManager_PresenceFactory_h
#define FWCore_PluginManager_PresenceFactory_h

#include "FWCore/Utilities/interface/Presence.h"
#include "FWCore/PluginManager/interface/PluginFactory.h"

#include <string>
#include <memory>

namespace edm {
  typedef edmplugin::PluginFactory<Presence*()> PresencePluginFactory;

  typedef Presence*(PresenceFunc)();

  class PresenceFactory {
  public:
    ~PresenceFactory();

    static PresenceFactory* get();

    std::unique_ptr<Presence> makePresence(std::string const& presence_type) const;

  private:
    PresenceFactory();
    //static PresenceFactory singleInstance_;
  };
}  // namespace edm
#endif  // FWCore_PluginManager_PresenceFactory_h