Added README to PHOS/macros/Trigger/OCDB, explaining the content.
[u/mrichter/AliRoot.git] / PHOS / AliPHOSPID.cxx
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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
41ClassImp(AliPHOSPID)
42
43//____________________________________________________________________________
44AliPHOSPID::AliPHOSPID():
45 TObject(),
46 fGeom(NULL),
47 fESD(0x0),
48 fEMCRecPoints(NULL),
49 fCPVRecPoints(NULL),
50 fTrackSegments(NULL),
51 fRecParticles(NULL)
52{
53 // ctor
54}
55
56
57//____________________________________________________________________________
58AliPHOSPID::AliPHOSPID(AliPHOSGeometry *geom):
59 TObject(),
60 fGeom(geom),
61 fESD(0x0),
62 fEMCRecPoints(NULL),
63 fCPVRecPoints(NULL),
64 fTrackSegments(NULL),
65 fRecParticles(NULL)
66{
67 // ctor
68 fEMCRecPoints = new TObjArray(100) ;
69 fCPVRecPoints = new TObjArray(100) ;
70 fRecParticles = new TClonesArray("AliPHOSRecParticle",100) ;
71 fRecParticles->SetName("RECPARTICLES");
72
73}
74
75//____________________________________________________________________________
76AliPHOSPID::AliPHOSPID(const AliPHOSPID & pid) :
77 TObject(pid),
78 fGeom(pid.fGeom),
79 fESD(pid.fESD),
80 fEMCRecPoints(pid.fEMCRecPoints),
81 fCPVRecPoints(pid.fCPVRecPoints),
82 fTrackSegments(pid.fTrackSegments),
83 fRecParticles(pid.fRecParticles)
84{
85 // Copy constructor
86}
87
88//____________________________________________________________________________
89AliPHOSPID::~AliPHOSPID()
90{
91 // dtor
92 if (fEMCRecPoints) {
93 fEMCRecPoints->Delete();
94 delete fEMCRecPoints;
95 }
96 if (fCPVRecPoints) {
97 fCPVRecPoints->Delete();
98 delete fCPVRecPoints;
99 }
100 if (fRecParticles) {
101 fRecParticles->Delete();
102 delete fRecParticles;
103 }
104}
105
106//____________________________________________________________________________
107void 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 fTrackSegments = trackSegments;
115
116 TBranch *emcbranch = clustersTree->GetBranch("PHOSEmcRP");
117 if (!emcbranch) {
118 AliError("can't get the branch with the PHOS EMC clusters !");
119 return;
120 }
121 emcbranch->SetAddress(&fEMCRecPoints);
122 fEMCRecPoints->Delete();
123 emcbranch->GetEntry(0);
124
125 TBranch *cpvbranch = clustersTree->GetBranch("PHOSCpvRP");
126 if (!cpvbranch) {
127 AliError("can't get the branch with the PHOS CPV clusters !");
128 return;
129 }
130 cpvbranch->SetAddress(&fCPVRecPoints);
131 fCPVRecPoints->Delete();
132 cpvbranch->GetEntry(0);
133}