art::InputSourceFactory Namespace Reference

Functions
std::unique_ptr< InputSource >	make (fhicl::ParameterSet const &conf, InputSourceDescription &desc)

Function Documentation

std::unique_ptr< InputSource > art::InputSourceFactory::make	(	fhicl::ParameterSet const &	conf,
		InputSourceDescription &	desc
	)

Definition at line 19 of file InputSourceFactory.cc.

References art::errors::Configuration, e, FDEBUG, fhicl::ParameterSet::get(), art::getReleaseVersion(), and art::Suffixes::source().

Referenced by proxy::details::WithAssociatedStructBase< Aux, Metadata, ArgTuple, ProxyMaker, AuxTag >::createAssnProxyMaker(), fhicl::decompose_fhicl(), evgen::MarleyParameterSetWalker::enter_sequence(), evgen::MarleyParameterSetWalker::enter_table(), art::EventProcessor::EventProcessor(), proxy::AssociatedDataProxyMaker< Main, Aux, Metadata, CollProxy, Tag >::make(), proxy::OneTo01DataProxyMaker< Main, Aux, Metadata, CollProxy, Tag >::make(), proxy::ParallelDataProxyMaker< Main, Aux, CollProxy, Tag, AuxColl >::make(), proxy::CollectionProxyMaker< Tracks >::make(), util::make_collection_reference(), fhicl::parse_file_and_fill_db(), and fhicl::ParameterSetRegistry::stageIn().

  {
    auto const libspec = conf.get<std::string>("module_type");
    FDEBUG(1) << "InputSourceFactory: module_type = " << libspec << '\n';
    using make_t = std::unique_ptr<InputSource>(fhicl::ParameterSet const&,
                                                InputSourceDescription&);
    make_t* symbol = nullptr;
    try {
      cet::LibraryManager lm_{Suffixes::source()};
      lm_.getSymbolByLibspec(libspec, "make", symbol);
    }
    catch (Exception const& e) {
      cet::detail::wrapLibraryManagerException(
        e, "InputSource", libspec, getReleaseVersion());
    }
    if (symbol == nullptr) {
      throw Exception(errors::Configuration, "BadPluginLibrary")
        << "InputSource " << libspec
        << " has internal symbol definition problems: consult an expert.";
    }
    auto wm = symbol(conf, desc);
    FDEBUG(1) << "InputSourceFactory: created input source " << libspec << '\n';
    return wm;
  }