Line data    Source code

       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             : //  Algorithm class for the identification of particles detected in PHOS        
      20             : //  base  class  of identified particle  
      21             : //  Why should I put meaningless comments
      22             : //  just to satisfy
      23             : //  the code checker                
      24             :                          
      25             : //                  
      26             : //*-- Author: Yves Schutz (SUBATECH) & Dmitri Peressounko
      27             : 
      28             : 
      29             : // --- ROOT system ---
      30             : #include "TBranch.h"
      31             : #include "TClonesArray.h"
      32             : #include "TTree.h"
      33             : 
      34             : // --- Standard library ---
      35             : 
      36             : // --- AliRoot header files ---
      37             : #include "AliConfig.h"
      38             : #include "AliLog.h"
      39             : #include "AliPHOSPID.h"
      40             : 
      41          22 : ClassImp(AliPHOSPID)
      42             : 
      43             : //____________________________________________________________________________
      44             : AliPHOSPID::AliPHOSPID():
      45           0 :   TObject(),
      46           0 :   fGeom(NULL),
      47           0 :   fESD(0x0),
      48           0 :   fEMCRecPoints(NULL),
      49           0 :   fCPVRecPoints(NULL),
      50           0 :   fTrackSegments(NULL),
      51           0 :   fRecParticles(NULL)
      52           0 : {
      53             :   // ctor
      54           0 : }
      55             : 
      56             : 
      57             : //____________________________________________________________________________
      58             : AliPHOSPID::AliPHOSPID(AliPHOSGeometry *geom):
      59           2 :   TObject(),
      60           2 :   fGeom(geom),
      61           2 :   fESD(0x0),
      62           2 :   fEMCRecPoints(NULL),
      63           2 :   fCPVRecPoints(NULL),
      64           2 :   fTrackSegments(NULL),
      65           2 :   fRecParticles(NULL)
      66           6 : {
      67             :   // ctor
      68           6 :   fEMCRecPoints = new TObjArray(100) ;
      69           6 :   fCPVRecPoints = new TObjArray(100) ;
      70           6 :   fRecParticles = new TClonesArray("AliPHOSRecParticle",100) ;
      71           2 :   fRecParticles->SetName("RECPARTICLES");
      72             : 
      73           2 : }
      74             : 
      75             : //____________________________________________________________________________
      76             : AliPHOSPID::AliPHOSPID(const AliPHOSPID & pid) :
      77           0 :   TObject(pid),
      78           0 :   fGeom(pid.fGeom),
      79           0 :   fESD(pid.fESD), 
      80           0 :   fEMCRecPoints(pid.fEMCRecPoints),
      81           0 :   fCPVRecPoints(pid.fCPVRecPoints),
      82           0 :   fTrackSegments(pid.fTrackSegments),
      83           0 :   fRecParticles(pid.fRecParticles)
      84           0 : {
      85             :   // Copy constructor
      86           0 : }
      87             : 
      88             : //____________________________________________________________________________
      89             : AliPHOSPID::~AliPHOSPID()
      90           4 : {
      91             :   // dtor
      92           2 :   if (fEMCRecPoints) {
      93           2 :     fEMCRecPoints->Delete();
      94           4 :     delete fEMCRecPoints;
      95             :   }
      96           2 :   if (fCPVRecPoints) {
      97           2 :     fCPVRecPoints->Delete();
      98           4 :     delete fCPVRecPoints;
      99             :   }
     100           2 :   if (fRecParticles) {
     101           2 :     fRecParticles->Delete();
     102           4 :     delete fRecParticles;
     103             :   }
     104           2 : }
     105             : 
     106             : //____________________________________________________________________________
     107             : void AliPHOSPID::SetInput(TTree *clustersTree, TClonesArray *trackSegments)
     108             : {
     109             :   // Read the clusters tree and creates the
     110             :   // arrays with the EMC and CPV
     111             :   // clusters.
     112             :   // and set the corresponding branch addresses
     113             : 
     114          16 :   fTrackSegments = trackSegments;
     115             : 
     116           8 :   TBranch *emcbranch = clustersTree->GetBranch("PHOSEmcRP");
     117           8 :   if (!emcbranch) { 
     118           0 :     AliError("can't get the branch with the PHOS EMC clusters !");
     119           0 :     return;
     120             :   }
     121           8 :   emcbranch->SetAddress(&fEMCRecPoints);
     122           8 :   fEMCRecPoints->Delete();
     123           8 :   emcbranch->GetEntry(0);
     124             : 
     125           8 :   TBranch *cpvbranch = clustersTree->GetBranch("PHOSCpvRP");
     126           8 :   if (!cpvbranch) { 
     127           0 :     AliError("can't get the branch with the PHOS CPV clusters !");
     128           0 :     return;
     129             :   }
     130           8 :   cpvbranch->SetAddress(&fCPVRecPoints);
     131           8 :   fCPVRecPoints->Delete();
     132           8 :   cpvbranch->GetEntry(0);
     133          16 : }