FWLite/src/EventBase.cc

0001 // -*- C++ -*-
0002 //
0003 // Package:     FWLite
0004 // Class  :     EventBase
0005 //
0006 // Implementation:
0007 //     <Notes on implementation>
0008 //
0009 // Original Author:  Charles Plager
0010 //         Created:
0011 //
0012
0013 // system include files
0014 #include <iostream>
0015 #include <memory>
0016
0017 // user include files
0018 #include "DataFormats/FWLite/interface/EventBase.h"
0019 #include "DataFormats/Common/interface/BasicHandle.h"
0020 #include "DataFormats/Common/interface/FunctorHandleExceptionFactory.h"
0021 #include "DataFormats/Common/interface/WrapperBase.h"
0022 #include "DataFormats/Provenance/interface/ProductID.h"
0023 #include "FWCore/Utilities/interface/do_nothing_deleter.h"
0024 #include "FWCore/Utilities/interface/EDMException.h"
0025 #include "FWCore/Utilities/interface/TypeID.h"
0026
0027 static const edm::ProductID s_id;
0028 static edm::ProductDescription const s_branch = edm::ProductDescription(edm::ProductDescription());
0029 static const edm::Provenance s_prov(std::shared_ptr<edm::ProductDescription const>(&s_branch,
0030                                                                                    edm::do_nothing_deleter()),
0031                                     s_id);
0032
0033 namespace fwlite {
0034   EventBase::EventBase() {}
0035
0036   EventBase::~EventBase() {}
0037
0038   edm::BasicHandle EventBase::getByLabelImpl(std::type_info const& iWrapperInfo,
0039                                              std::type_info const& /*iProductInfo*/,
0040                                              const edm::InputTag& iTag) const {
0041     edm::WrapperBase const* prod = nullptr;
0042     void* prodPtr = &prod;
0043     getByLabel(iWrapperInfo,
0044                iTag.label().c_str(),
0045                iTag.instance().empty() ? static_cast<char const*>(nullptr) : iTag.instance().c_str(),
0046                iTag.process().empty() ? static_cast<char const*>(nullptr) : iTag.process().c_str(),
0047                prodPtr);
0048     if (prod == nullptr || !prod->isPresent()) {
0049       edm::TypeID productType(iWrapperInfo);
0050
0051       edm::BasicHandle failed(edm::makeHandleExceptionFactory([=]() -> std::shared_ptr<cms::Exception> {
0052         std::shared_ptr<cms::Exception> whyFailed(std::make_shared<edm::Exception>(edm::errors::ProductNotFound));
0053         *whyFailed << "getByLabel: Found zero products matching all criteria\n"
0054                    << "Looking for type: " << productType << "\n"
0055                    << "Looking for module label: " << iTag.label() << "\n"
0056                    << "Looking for productInstanceName: " << iTag.instance() << "\n"
0057                    << (iTag.process().empty() ? "" : "Looking for process: ") << iTag.process() << "\n"
0058                    << "The data is registered in the file but is not available for this event\n";
0059         return whyFailed;
0060       }));
0061       return failed;
0062     }
0063
0064     edm::BasicHandle value(prod, &s_prov);
0065     return value;
0066   }
0067
0068   edm::BasicHandle EventBase::getByTokenImpl(std::type_info const& iProdInfo, edm::EDGetToken iToken) const {
0069     edm::WrapperBase const* prod = nullptr;
0070     getByTokenImp(iToken, prod);
0071     if (prod == nullptr || !prod->isPresent()) {
0072       edm::TypeID productType(iProdInfo);
0073
0074       edm::BasicHandle failed(edm::makeHandleExceptionFactory([=]() -> std::shared_ptr<cms::Exception> {
0075         std::shared_ptr<cms::Exception> whyFailed(std::make_shared<edm::Exception>(edm::errors::ProductNotFound));
0076         *whyFailed << "getByToken: Found zero products matching all criteria\n"
0077                    << "Looking for type: " << productType << "\n"
0078                    << "The data is registered in the file but is not available for this event\n";
0079         return whyFailed;
0080       }));
0081       return failed;
0082     }
0083
0084     edm::BasicHandle value(prod, &s_prov);
0085     return value;
0086   }
0087
0088   edm::BasicHandle EventBase::getImpl(std::type_info const& iProductInfo, const edm::ProductID& pid) const {
0089     edm::WrapperBase const* prod = getByProductID(pid);
0090     if (prod == nullptr || !prod->isPresent()) {
0091       edm::TypeID productType(iProductInfo);
0092
0093       edm::BasicHandle failed(edm::makeHandleExceptionFactory([=]() -> std::shared_ptr<cms::Exception> {
0094         std::shared_ptr<cms::Exception> whyFailed(std::make_shared<edm::Exception>(edm::errors::ProductNotFound));
0095         *whyFailed << "EventBase::getImpl: getByProductID found no product with the\n"
0096                    << "requested ProductID " << pid << "\n"
0097                    << "Expected type: " << productType << "\n";
0098         return whyFailed;
0099       }));
0100       return failed;
0101     }
0102     edm::BasicHandle value(prod, &s_prov);
0103     return value;
0104   }
0105 }  // namespace fwlite