MUON/AliMUONClusterStoreV2Iterator.cxx

   1 /**************************************************************************
   2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   3 *                                                                        *
   4 * Author: The ALICE Off-line Project.                                    *
   5 * Contributors are mentioned in the code where appropriate.              *
   6 *                                                                        *
   7 * Permission to use, copy, modify and distribute this software and its   *
   8 * documentation strictly for non-commercial purposes is hereby granted   *
   9 * without fee, provided that the above copyright notice appears in all   *
  10 * copies and that both the copyright notice and this permission notice   *
  11 * appear in the supporting documentation. The authors make no claims     *
  12 * about the suitability of this software for any purpose. It is          *
  13 * provided "as is" without express or implied warranty.                  *
  14 **************************************************************************/
  15
  16 // $Id$
  17
  18 //-----------------------------------------------------------------------------
  19 /// \class AliMUONClusterStoreV2Iterator
  20 ///
  21 /// Implementation of TIterator for AliMUONClusterStoreV2
  22 ///
  23 /// \author Philippe Pillot, Subatech
  24 ///
  25 //-----------------------------------------------------------------------------
  26
  27 #include "AliMUONClusterStoreV2Iterator.h"
  28
  29 #include "AliMUONClusterStoreV2.h"
  30
  31 #include "AliMpExMap.h"
  32
  33 #include <TExMap.h>
  34
  35 /// \cond CLASSIMP
  36 ClassImp(AliMUONClusterStoreV2Iterator)
  37 /// \endcond
  38
  39 //_____________________________________________________________________________
  40 AliMUONClusterStoreV2Iterator::AliMUONClusterStoreV2Iterator(const AliMUONClusterStoreV2* store,
  41                                                              Int_t firstChamberId, Int_t lastChamberId)
  42 : TIterator(),
  43   fStore(store),
  44   fFirstChamberId(firstChamberId),
  45   fLastChamberId(lastChamberId),
  46   fCurrentChamberId(-1),
  47   fChamberIterator(0x0)
  48 {
  49   /// Constructor for partial iteration
  50   if (fFirstChamberId > fLastChamberId) {
  51     fLastChamberId = fFirstChamberId;
  52     fFirstChamberId = lastChamberId;
  53   }
  54   Reset();
  55 }
  56
  57 //_____________________________________________________________________________
  58 AliMUONClusterStoreV2Iterator::AliMUONClusterStoreV2Iterator(const AliMUONClusterStoreV2Iterator& iter)
  59 : TIterator(iter),
  60   fStore(iter.fStore),
  61   fFirstChamberId(iter.fFirstChamberId),
  62   fLastChamberId(iter.fLastChamberId),
  63   fCurrentChamberId(iter.fCurrentChamberId),
  64   fChamberIterator(0x0)
  65 {
  66   /// Copy constructor
  67   if (iter.fChamberIterator) fChamberIterator = new TExMapIter(*(iter.fChamberIterator));
  68 }
  69
  70 //_____________________________________________________________________________
  71 AliMUONClusterStoreV2Iterator& AliMUONClusterStoreV2Iterator::operator=(const AliMUONClusterStoreV2Iterator& iter)
  72 {
  73   /// Assignment operator
  74   if ( this != &iter ) {
  75     fFirstChamberId = iter.fFirstChamberId;
  76     fLastChamberId = iter.fLastChamberId;
  77     fCurrentChamberId = iter.fCurrentChamberId;
  78     delete fChamberIterator;
  79     fChamberIterator = 0x0;
  80     if (iter.fChamberIterator) fChamberIterator = new TExMapIter(*(iter.fChamberIterator));
  81   }
  82   return *this;
  83 }
  84
  85 //_____________________________________________________________________________
  86 TIterator& AliMUONClusterStoreV2Iterator::operator=(const TIterator& iter)
  87 {
  88   /// Overriden operator= (imposed by Root's definition of TIterator::operator= ?)
  89   if ( this != &iter && iter.IsA() == AliMUONClusterStoreV2Iterator::Class() ) {
  90     (*this) = static_cast<const AliMUONClusterStoreV2Iterator&>(iter);
  91   }
  92   return *this;
  93 }
  94
  95 //_____________________________________________________________________________
  96 AliMUONClusterStoreV2Iterator::~AliMUONClusterStoreV2Iterator()
  97 {
  98   /// Destructor
  99   delete fChamberIterator;
 100 }
 101
 102 //_____________________________________________________________________________
 103 TObject* AliMUONClusterStoreV2Iterator::NextInCurrentChamber() const
 104 {
 105   /// Return the value corresponding to theKey in iterator iter
 106   Long_t key, value;
 107   if (fChamberIterator->Next(key,value)) return reinterpret_cast<TObject*>(value);
 108   else return 0x0;
 109 }
 110
 111 //_____________________________________________________________________________
 112 TObject* AliMUONClusterStoreV2Iterator::Next()
 113 {
 114   /// Return next cluster in store
 115   TObject* o = NextInCurrentChamber();
 116
 117   while (!o) {
 118     // fChamberIterator exhausted, try to get the next ones
 119     if (fCurrentChamberId == fLastChamberId) return 0x0; // we reached the end
 120
 121     fCurrentChamberId++;
 122     delete fChamberIterator;
 123     fChamberIterator = new TExMapIter(static_cast<AliMpExMap*>(fStore->fMap->UncheckedAt(fCurrentChamberId))->GetIterator());
 124
 125     o = NextInCurrentChamber();
 126   }
 127
 128   return o;
 129 }
 130
 131 //_____________________________________________________________________________
 132 void AliMUONClusterStoreV2Iterator::Reset()
 133 {
 134   /// Reset the iterator
 135   fCurrentChamberId = fFirstChamberId;
 136   delete fChamberIterator;
 137   fChamberIterator = new TExMapIter(static_cast<AliMpExMap*>(fStore->fMap->UncheckedAt(fCurrentChamberId))->GetIterator());
 138 }