PresenceFactory.cc

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#include "FWCore/PluginManager/interface/PresenceFactory.h"
#include "FWCore/Utilities/interface/EDMException.h"
#include "FWCore/Utilities/interface/DebugMacros.h"
#include "FWCore/Utilities/interface/thread_safety_macros.h"
 
#include <iostream>
 
EDM_REGISTER_PLUGINFACTORY(edm::PresencePluginFactory, "CMS EDM Framework Presence");
 
namespace edm {
 
  PresenceFactory::~PresenceFactory() {}
 
  PresenceFactory::PresenceFactory() {}
 
  PresenceFactory* PresenceFactory::get() {
    CMS_THREAD_SAFE static PresenceFactory singleInstance_;
    return &singleInstance_;
  }
 
  std::unique_ptr<Presence> PresenceFactory::makePresence(std::string const& presence_type) const {
    std::unique_ptr<Presence> sp(PresencePluginFactory::get()->create(presence_type));
 
    if (sp.get() == nullptr) {
      throw edm::Exception(errors::Configuration, "NoPresenceModule")
          << "Presence Factory:\n"
          << "Cannot find presence type: " << presence_type << "\n"
          << "Perhaps the name is misspelled or is not a Plugin?\n"
          << "Try running EdmPluginDump to obtain a list of available Plugins.";
    }
 
    FDEBUG(1) << "PresenceFactory: created presence " << presence_type << std::endl;
 
    return sp;
  }
}  // namespace edm