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// -*- C++ -*-
//
// Package: EDProduct
// Class : EDProductGetter
//
// Implementation:
// <Notes on implementation>
//
// Original Author: Chris Jones
// Created: Tue Nov 1 15:06:41 EST 2005
//
// system include files
// user include files
#include "DataFormats/Common/interface/EDProductGetter.h"
#include "DataFormats/Provenance/interface/ProductID.h"
#include "FWCore/Utilities/interface/EDMException.h"
namespace edm {
//
// constants, enums and typedefs
//
//
// static data member definitions
//
//
// constructors and destructor
//
EDProductGetter::EDProductGetter() {}
// EDProductGetter::EDProductGetter(EDProductGetter const& rhs)
// {
// // do actual copying here;
// }
EDProductGetter::~EDProductGetter() {}
//
// assignment operators
//
// EDProductGetter const& EDProductGetter::operator=(EDProductGetter const& rhs)
// {
// //An exception safe implementation is
// EDProductGetter temp(rhs);
// swap(rhs);
//
// return *this;
// }
//
// member functions
//
//
// const member functions
//
//
// static member functions
//
EDProductGetter const* mustBeNonZero(EDProductGetter const* prodGetter,
std::string refType,
ProductID const& productID) {
if (prodGetter != nullptr)
return prodGetter;
throw Exception(errors::InvalidReference, refType)
<< "Attempt to construct a " << refType << " with ProductID " << productID << "\n"
<< "but with a null pointer to a product getter.\n"
<< "The product getter pointer passed to the constructor must refer\n"
<< "to a real getter, such as an EventPrincipal.\n";
}
thread_local EDProductGetter const* s_productGetter = nullptr;
EDProductGetter const* EDProductGetter::switchProductGetter(EDProductGetter const* iNew) {
//std::cout <<"switch from "<<s_productGetter<<" to "<<iNew<<std::endl;
EDProductGetter const* old = s_productGetter;
s_productGetter = iNew;
return old;
}
void EDProductGetter::assignEDProductGetter(EDProductGetter const*& iGetter) {
//std::cout <<"assign "<<s_productGetter<<std::endl;
iGetter = s_productGetter;
}
} // namespace edm
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