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//--------------------------------------------------------------------------------------------------
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// $Id: FillerTracks.h,v 1.16 2008/10/13 10:41:36 bendavid Exp $
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//
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// HitPatternReader
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//
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// Helper class to translate track hits from the format they are stored in within reco::HitPattern
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// to the corresponding mithep::Track::EHitLayer
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//
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// Authors: J.Bendavid
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//--------------------------------------------------------------------------------------------------
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#ifndef MITPROD_TREEFILLER_HITPATTERNREADER_H
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#define MITPROD_TREEFILLER_HITPATTERNREADER_H
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#include <map>
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#include "FWCore/MessageLogger/interface/MessageLogger.h"
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#include "MitAna/DataTree/interface/Track.h"
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namespace mithep
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{
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class HitPatternReader
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{
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public:
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HitPatternReader() : layerMask_(0xFFFFFFFC) { InitLayerMap(); }
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virtual ~HitPatternReader() { layerMap_.clear(); }
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mithep::Track::EHitLayer Layer(const uint32_t &hit) const;
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protected:
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void InitLayerMap();
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const uint32_t layerMask_; //needed for bitwise operations
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std::map<uint32_t,mithep::Track::EHitLayer> layerMap_; //hitlayer bitmap map
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};
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}
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//--------------------------------------------------------------------------------------------------
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inline mithep::Track::EHitLayer mithep::HitPatternReader::Layer(const uint32_t &hit) const
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{
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std::map<uint32_t,mithep::Track::EHitLayer>::const_iterator iter
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= layerMap_.find(hit & layerMask_);
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if (iter != layerMap_.end())
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return iter->second;
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else throw edm::Exception(edm::errors::Configuration, "HitPatternReader::Layer()\n")
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<< "Error! Layer not found corresponding to hit pattern (" << hit << "." << std::endl;
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}
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#endif
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