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//--------------------------------------------------------------------------------------------------
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// $Id: AssociationMap.h,v 1.7 2009/03/13 09:35:19 loizides Exp $
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//
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// Association Map
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//
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// Wrapper for std::map, used to resolve links during tree filling.
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//
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// Authors: J.Bendavid, C.Loizides
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//--------------------------------------------------------------------------------------------------
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#ifndef MITPROD_TREEFILLER_ASSOCIATIONMAP_H
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#define MITPROD_TREEFILLER_ASSOCIATIONMAP_H
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#include <map>
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#include <TObject.h>
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#include "FWCore/MessageLogger/interface/MessageLogger.h"
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namespace mithep
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{
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template <class EdmClass, class MitClass> class AssociationMap : public TObject
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{
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typedef std::map<EdmClass, MitClass> fwdMapType;
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typedef std::map<MitClass, EdmClass> revMapType;
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public:
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AssociationMap() : edmProductId_(0) {}
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~AssociationMap() {}
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void Add(EdmClass edmObj, MitClass mitObj);
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EdmClass GetEdm(MitClass mitObj) const;
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Int_t GetEdmProductId() const { return edmProductId_; }
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Int_t GetEntries() const { return fwdMap_.size(); }
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MitClass GetMit(EdmClass edmObj) const;
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const char *GetBrName() const { return brname_.c_str(); }
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bool HasMit(EdmClass edmObj) const;
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void Reset() { fwdMap_.clear(); revMap_.clear(); }
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void SetEdmProductId(Int_t id) { edmProductId_ = id; }
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void SetBrName(const char *n) { brname_ = n; }
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protected:
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fwdMapType fwdMap_; //map between edm ref and mit ptr
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revMapType revMap_; //map between mit ptr and edm ref
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Int_t edmProductId_; //product id for consistency check
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std::string brname_; //branch name of MIT objects
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};
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}
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//--------------------------------------------------------------------------------------------------
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template <class EdmClass, class MitClass>
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inline void mithep::AssociationMap<EdmClass,MitClass>::Add(EdmClass edmObj, MitClass mitObj)
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{
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fwdMap_[edmObj]=mitObj;
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revMap_.insert(std::pair<MitClass, EdmClass>(mitObj,edmObj));
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}
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//--------------------------------------------------------------------------------------------------
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template <class EdmClass, class MitClass>
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inline MitClass mithep::AssociationMap<EdmClass,MitClass>::GetMit(EdmClass edmObj) const
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{
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typename fwdMapType::const_iterator iter = fwdMap_.find(edmObj);
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if (iter != fwdMap_.end())
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return iter->second;
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else throw edm::Exception(edm::errors::Configuration, "AssociationMap::GetMit()\n")
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<< "Error! EDM Object (" << typeid(edmObj).name()
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<< ") not found in AssociationMap (" << typeid(*this).name() << ")." << std::endl;
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}
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//--------------------------------------------------------------------------------------------------
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template <class EdmClass, class MitClass>
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inline EdmClass mithep::AssociationMap<EdmClass,MitClass>::GetEdm(MitClass mitObj) const
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{
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typename revMapType::const_iterator iter = revMap_.find(mitObj);
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if (iter != revMap_.end())
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return iter->second;
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else throw edm::Exception(edm::errors::Configuration, "AssociationMap::GetEdm()\n")
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<< "Error! MITHEP Object (" << typeid(mitObj).name()
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<< ") not found in AssociationMap (" << typeid(*this).name() << ")." << std::endl;
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}
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//--------------------------------------------------------------------------------------------------
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template <class EdmClass, class MitClass>
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inline bool mithep::AssociationMap<EdmClass,MitClass>::HasMit(EdmClass edmObj) const
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{
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typename fwdMapType::const_iterator iter = fwdMap_.find(edmObj);
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if (iter != fwdMap_.end())
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return true;
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else
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return false;
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}
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#endif
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