ClusterTopology.h

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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
 
 
#ifndef ALICEO2_ITSMFT_CLUSTERTOPOLOGY_H
#define ALICEO2_ITSMFT_CLUSTERTOPOLOGY_H
#include "DataFormatsITSMFT/ClusterPattern.h"
#include <map>
#include <iosfwd>
 
namespace o2
{
namespace itsmft
{
class ClusterTopology
{
 public:
  ClusterTopology();
  ClusterTopology(int nRow, int nCol, const unsigned char patt[ClusterPattern::MaxPatternBytes]);
  ClusterTopology(const ClusterPattern& patt);
 
  unsigned char getByte(int n) const { return mPattern.getByte(n); }
  const std::array<unsigned char, ClusterPattern::kExtendedPatternBytes>& getPattern() const { return mPattern.getPattern(); }
  const ClusterPattern& getClusterPattern() const { return mPattern; }
  int getRowSpan() const { return mPattern.getRowSpan(); }
  int getColumnSpan() const { return mPattern.getColumnSpan(); }
  int getUsedBytes() const { return mPattern.getUsedBytes(); }
  unsigned long getHash() const { return mHash; }
  friend std::ostream& operator<<(std::ostream& os, const ClusterTopology& top);
  void print() const;
  static unsigned int hashFunction(const void* key, int len);
  static unsigned long getCompleteHash(int nRow, int nCol, const unsigned char patt[ClusterPattern::MaxPatternBytes]);
  static unsigned long getCompleteHash(const ClusterTopology& topology);
  void setPattern(int nRow, int nCol, const unsigned char patt[ClusterPattern::MaxPatternBytes]);
  void setPattern(const ClusterPattern& patt);
 
  static void makeRareTopologyMap(const std::vector<ClusterTopology>& vec, std::map<int, ClusterPattern>& map)
  {
    for (const auto& topo : vec) {
      auto key = topo.getHash();
      map[key] = topo.getClusterPattern();
    }
  }
 
 private:
  void setHash(unsigned long hash) { mHash = hash; }
  ClusterPattern mPattern; 
  unsigned long mHash;
 
  ClassDefNV(ClusterTopology, 2);
};
} // namespace itsmft
} // namespace o2
 
#endif /* ALICEO2_ITS_CLUSTERTOPOLOGY_H */