OptionsHandler.cc

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#include "art/Framework/Art/OptionsHandler.h"

#include "cetlib_except/demangle.h"
#include "cetlib_except/exception.h"

#include <exception>
#include <iostream>
#include <typeinfo>

namespace {

  // class F must be callable with no arguments, and return 'int'.
  template <class F>
  int
  exceptionCatcher(F func, std::string const& funcName, int failureCode)
  {
    try {
      return func();
    }
    catch (cet::exception& e) {
      std::cerr << "OptionsHandler caught a cet::exception calling " << funcName
                << '\n'
                << e.what() << '\n';
    }
    catch (std::exception& e) {
      std::cerr << "OptionsHandler caught an std::exception calling "
                << funcName << '\n'
                << e.what() << '\n';
    }
    catch (std::string& s) {
      std::cerr << "OptionsHandler caught a string exception calling "
                << funcName << '\n'
                << s << '\n';
    }
    catch (char const* s) {
      std::cerr << "OptionsHandler caught a string exception calling "
                << funcName << '\n'
                << s << '\n';
    }
    catch (...) {
      std::cerr << "OptionsHandler caught an unknown exception calling "
                << funcName << '\n';
    }
    return failureCode;
  }
} // namespace

art::OptionsHandler::~OptionsHandler() = default;

int
art::OptionsHandler::checkOptions(bpo::variables_map const& vm)
{
  std::string const thisClass(cet::demangle_symbol(typeid(*this).name()));
  return exceptionCatcher([&vm, this] { return doCheckOptions(vm); },
                          thisClass + "::doCheckOptions()",
                          89);
}

int
art::OptionsHandler::processOptions(bpo::variables_map const& vm,
                                    fhicl::intermediate_table& raw_config)
{
  std::string const thisClass(cet::demangle_symbol(typeid(*this).name()));
  return exceptionCatcher(
    [&, this] { return doProcessOptions(vm, raw_config); },
    thisClass + "::doProcessOptions()",
    90);
}