Common/interface/LuminosityBlockBase.h

0001 #ifndef FWCore_Common_LuminosityBlockBase_h
0002 #define FWCore_Common_LuminosityBlockBase_h
0003
0004 // -*- C++ -*-
0005 //
0006 // Package:     FWCore/Common
0007 // Class  :     LuminosityBlockBase
0008 //
0009 /**\class LuminosityBlockBase LuminosityBlockBase.h FWCore/Common/interface/LuminosityBlockBase.h
0010
0011  Description: Base class for LuminosityBlocks in both the full and light framework
0012
0013  Usage:
0014     One can use this class for code which needs to work in both the full and the
0015  light (i.e. FWLite) frameworks.  Data can be accessed using the same getByLabel
0016  interface which is available in the full framework.
0017
0018 */
0019 //
0020 // Original Author:  Eric Vaandering
0021 //         Created:  Tue Jan 12 15:31:00 CDT 2010
0022 //
0023
0024 #include "DataFormats/Common/interface/BasicHandle.h"
0025 #include "DataFormats/Common/interface/ConvertHandle.h"
0026 #include "DataFormats/Common/interface/Handle.h"
0027 #include "DataFormats/Provenance/interface/LuminosityBlockAuxiliary.h"
0028 #include "DataFormats/Provenance/interface/LuminosityBlockID.h"
0029 #include "DataFormats/Provenance/interface/RunID.h"
0030 #include "FWCore/Utilities/interface/InputTag.h"
0031
0032 namespace edm {
0033
0034   class LuminosityBlockBase {
0035   public:
0036     LuminosityBlockBase();
0037     virtual ~LuminosityBlockBase();
0038
0039     // AUX functions.
0040     LuminosityBlockNumber_t luminosityBlock() const { return luminosityBlockAuxiliary().luminosityBlock(); }
0041
0042     RunNumber_t run() const { return luminosityBlockAuxiliary().run(); }
0043
0044     LuminosityBlockID id() const { return luminosityBlockAuxiliary().id(); }
0045
0046     Timestamp const& beginTime() const { return luminosityBlockAuxiliary().beginTime(); }
0047     Timestamp const& endTime() const { return luminosityBlockAuxiliary().endTime(); }
0048
0049     virtual edm::LuminosityBlockAuxiliary const& luminosityBlockAuxiliary() const = 0;
0050
0051     /// same as above, but using the InputTag class
0052     template <typename PROD>
0053     bool getByLabel(InputTag const& tag, Handle<PROD>& result) const;
0054
0055   private:
0056     virtual BasicHandle getByLabelImpl(std::type_info const& iWrapperType,
0057                                        std::type_info const& iProductType,
0058                                        const InputTag& iTag) const = 0;
0059   };
0060
0061   template <class T>
0062   bool LuminosityBlockBase::getByLabel(const InputTag& tag, Handle<T>& result) const {
0063     result.clear();
0064     BasicHandle bh = this->getByLabelImpl(typeid(Wrapper<T>), typeid(T), tag);
0065     result = convert_handle<T>(std::move(bh));
0066     if (result.failedToGet()) {
0067       return false;
0068     }
0069     return true;
0070   }
0071
0072 }  // namespace edm
0073 #endif