00001 // $Id: RHistogramCnv.h,v 1.4 2007/01/08 17:16:02 mato Exp $ 00002 #ifndef ROOTHISTCNV_RHISTOGRAMCNV_H 00003 #define ROOTHISTCNV_RHISTOGRAMCNV_H 1 00004 00005 // Include files 00006 #include "RConverter.h" 00007 #include "GaudiKernel/SmartIF.h" 00008 #include "GaudiKernel/DataObject.h" 00009 #include "GaudiKernel/IRegistry.h" 00010 #include "GaudiKernel/IOpaqueAddress.h" 00011 #include "GaudiKernel/HistogramBase.h" 00012 #include "RootObjAddress.h" 00013 #include "TArray.h" 00014 #include <memory> 00015 00016 namespace RootHistCnv { 00017 00030 template<typename T,typename S,typename Q> class RHistogramCnv : public RConverter { 00031 template <typename CLASS> struct TTH : public CLASS { 00032 void CopyH(TObject& o) { CLASS::Copy(o); } 00033 }; 00034 public: 00036 virtual StatusCode createObj(IOpaqueAddress* pAddr, DataObject*& refpObj) { 00037 refpObj = ROOT::Reflex::PluginService::CreateWithId<DataObject*>(objType()); 00038 RootObjAddress *r = dynamic_cast<RootObjAddress*>(pAddr); 00039 Q* h = dynamic_cast<Q*>(refpObj); 00040 if ( r && h ) { 00041 // Need to flip representation .... clumsy for the time being, because 00042 // THXY constructor has no "generic" copy constructor 00043 std::auto_ptr<T> p(new T()); 00044 S *s = dynamic_cast<S*>(r->tObj()); 00045 if ( s && p.get() ) { 00046 TTH<S>* casted = (TTH<S>*)s; 00047 TArray* a = dynamic_cast<TArray*>(s); 00048 casted->CopyH(*p); 00049 if ( 0 != a ) { 00050 p->Set(a->GetSize()); 00051 p->Reset(); 00052 p->Add(s); 00053 h->adoptRepresentation(p.release()); 00054 return StatusCode::SUCCESS; 00055 } 00056 } 00057 } 00058 return error("Cannot create histogram - invalid address."); 00059 } 00061 virtual StatusCode updateObj(IOpaqueAddress* /* pAddr */, DataObject* /* pObj */) { 00062 return StatusCode::SUCCESS; 00063 } 00065 virtual TObject* createPersistent(DataObject* pObj) { 00066 Q* h = dynamic_cast<Q*>(pObj); 00067 if ( 0 != h ) { 00068 T *r = dynamic_cast<T*>(h->representation()); 00069 if ( r ) { 00070 T* c = new T(); 00071 TArray* a = dynamic_cast<TArray*>(r); 00072 ((TTH<S>*)r)->CopyH(*c); 00073 if ( 0 != a ) { 00074 c->Set(a->GetSize()); 00075 c->Reset(); 00076 c->Add(r); 00077 c->SetName(pObj->registry()->name().c_str()+1); 00078 return c; 00079 } 00080 } 00081 } 00082 error("Histogram object is invalid!"); 00083 return 0; 00084 } 00086 static const CLID& classID(); 00088 RHistogramCnv(ISvcLocator* svc) : RConverter(classID(), svc) {} 00089 virtual ~RHistogramCnv() {} 00090 }; 00091 } // namespace RootHistCnv 00092 #endif // ROOTHISTCNV_RHISTOGRAMCNV_H
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