Factory.cc

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#include "FWCore/Framework/src/Factory.h"
#include "FWCore/Utilities/interface/DebugMacros.h"
#include "FWCore/Utilities/interface/EDMException.h"
#include "FWCore/Utilities/interface/Algorithms.h"

#include <iostream>

EDM_REGISTER_PLUGINFACTORY(edm::MakerPluginFactory,"CMS EDM Framework Module");
namespace edm {

  static void cleanup(const Factory::MakerMap::value_type& v)
  {
    delete v.second;
  }

  Factory const Factory::singleInstance_;
  
  Factory::~Factory()
  {
    for_all(makers_, cleanup);
  }

  Factory::Factory(): makers_()

  {
  }

  Factory const* Factory::get()
  {
    return &singleInstance_;
  }

  Maker* Factory::findMaker(const MakeModuleParams& p) const
  {
    std::string modtype = p.pset_->getParameter<std::string>("@module_type");
    FDEBUG(1) << "Factory: module_type = " << modtype << std::endl;
    MakerMap::iterator it = makers_.find(modtype);
    
    if(it == makers_.end())
    {
      std::unique_ptr<Maker> wm(MakerPluginFactory::get()->create(modtype));
      
      if(wm.get()==0)
        throw edm::Exception(errors::Configuration,"UnknownModule")
        << "Module " << modtype
        << " with version " << p.processConfiguration_->releaseVersion()
        << " was not registered.\n"
        << "Perhaps your module type is misspelled or is not a "
        << "framework plugin.\n"
        << "Try running EdmPluginDump to obtain a list of "
        << "available Plugins.";
      
      FDEBUG(1) << "Factory:  created worker of type " << modtype << std::endl;
      
      std::pair<MakerMap::iterator,bool> ret =
      makers_.insert(std::pair<std::string,Maker*>(modtype,wm.get()));
      
      //    if(ret.second==false)
      //      throw runtime_error("Worker Factory map insert failed");
      
      it = ret.first;
      wm.release();
    }
    return it->second;
  }
  
  std::shared_ptr<maker::ModuleHolder> Factory::makeModule(const MakeModuleParams& p,
                                            signalslot::Signal<void(const ModuleDescription&)>& pre,
                                            signalslot::Signal<void(const ModuleDescription&)>& post) const
  {
    auto maker = findMaker(p);
    auto mod(maker->makeModule(p,pre,post));
    return mod;
  }

  std::shared_ptr<maker::ModuleHolder> Factory::makeReplacementModule(const edm::ParameterSet& p) const
  {
    std::string modtype = p.getParameter<std::string>("@module_type");
    MakerMap::iterator it = makers_.find(modtype);
    if(it != makers_.end()) {
      return it->second->makeReplacementModule(p);
    }
    return std::shared_ptr<maker::ModuleHolder>{};
  }
}