ALIROOT-5634 Install all needed files
[u/mrichter/AliRoot.git] / ZDC / AliZDCTriggerProcessor.cxx
1 #include "AliZDCTriggerProcessor.h"
2 #include "AliCDBManager.h"
3 #include "AliCDBEntry.h"
4 #include "AliCDBMetaData.h"
5 #include "AliLog.h"
6 #include "AliZDCTriggerParameters.h"
7
8 /////////////////////////////////////////////////////////////////////
9 //                                                                 //
10 //        Class implementing ZDC  trigger processor.               //
11 //                                                                 //
12 /////////////////////////////////////////////////////////////////////
13
14 ClassImp(AliZDCTriggerProcessor)
15
16 //______________________________________________________________________________________________
17 AliZDCTriggerProcessor::AliZDCTriggerProcessor() :
18   fSignal(0x0),
19   fTriggerParam(0x0)
20 {
21   // default constructor
22 }
23
24 //______________________________________________________________________________________________
25 AliZDCTriggerProcessor::AliZDCTriggerProcessor(Float_t* signal) :
26   fSignal(signal),
27   fTriggerParam(GetTriggerParamFromOCDB())
28 {
29   // standard constructor I 
30   // gets the trigger parameters directly from OCDB
31 }
32
33 //______________________________________________________________________________________________
34 AliZDCTriggerProcessor::AliZDCTriggerProcessor(Float_t* signal, AliZDCTriggerParameters* ocdbParam) :
35   fSignal(signal),
36   fTriggerParam(ocdbParam)
37 {
38   // standard constructor II
39 }
40
41 //_____________________________________________________________________________
42 AliZDCTriggerProcessor &AliZDCTriggerProcessor::operator =(const AliZDCTriggerProcessor &trig)
43 {
44  // Equal operator.
45  this->~AliZDCTriggerProcessor();
46  new(this) AliZDCTriggerProcessor(trig);
47  return *this;  
48
49 }
50
51 //______________________________________________________________________________________________
52 AliZDCTriggerProcessor::AliZDCTriggerProcessor(const AliZDCTriggerProcessor& trigg) :
53   TObject(),
54   fSignal(trigg.fSignal),
55   fTriggerParam(trigg.fTriggerParam)
56 {
57   // copy constructor
58 }
59
60 //______________________________________________________________________________________________
61 AliZDCTriggerProcessor::~AliZDCTriggerProcessor()
62 {
63   // destructor
64 }
65
66 //______________________________________________________________________________________________
67 UInt_t AliZDCTriggerProcessor::ProcessEvent()
68 {
69   // process ZDC signals in order to determine the trigger output
70   UInt_t ctpInput = 0;
71   //
72   Bool_t mbTriggered = MBTrigger();
73   if(mbTriggered == kTRUE) ctpInput = 0x1;
74   Bool_t cenTriggered = CentralTrigger();
75   if(cenTriggered == kTRUE) ctpInput = 0x1 << 1;
76   Bool_t semicenTriggered = SemicentralTrigger();
77   if(semicenTriggered == kTRUE) ctpInput = 0x1 << 2;
78   Bool_t emdTriggered = EMDTrigger();
79   if(emdTriggered == kTRUE) ctpInput = 0x1 << 3;
80   
81   if((mbTriggered == kTRUE) || (cenTriggered == kTRUE) || 
82      (semicenTriggered == kTRUE) || (emdTriggered == kTRUE)){
83       return ctpInput;
84   }
85   else{
86     return 0;
87   }
88 }
89
90 //______________________________________________________________________________________________
91 Bool_t AliZDCTriggerProcessor::MBTrigger()
92 {
93   // is the processed event a MB A-A event?
94   
95   Float_t mbTrheshold = fTriggerParam->GetADCMBThreshold();
96   // check whether ZDC signal > mbTrheshold
97   if((fSignal[0]+fSignal[1]+fSignal[3]+fSignal[4]) > mbTrheshold)
98        return kTRUE;
99   else return kFALSE;
100   
101 }
102
103 //______________________________________________________________________________________________
104 Bool_t AliZDCTriggerProcessor::CentralTrigger()
105 {
106   // is the processed event a central A-A event?
107   
108   Float_t zemThr = fTriggerParam->GetADCZDCCentralityThr();
109   const Float_t* centralWin = fTriggerParam->GetADCCentralWindow();
110   // 
111   if((fSignal[0]+fSignal[1]+fSignal[3]+fSignal[4]) > centralWin[0]
112      && 
113      (fSignal[0]+fSignal[1]+fSignal[3]+fSignal[4]) < centralWin[1]
114      &&
115      fSignal[2] > zemThr)
116         return kTRUE;
117   else return kFALSE;
118 }
119
120 //______________________________________________________________________________________________
121 Bool_t AliZDCTriggerProcessor::SemicentralTrigger()
122 {
123   // is the processed event a semicentral A-A event?
124   
125   Float_t zemThr =  fTriggerParam->GetADCZDCCentralityThr();
126   const Float_t* semicentralWin =   fTriggerParam->GetADCSemicentralWindow();
127   //
128   if((fSignal[0]+fSignal[1]+fSignal[3]+fSignal[4]) > semicentralWin[0]
129      && 
130      (fSignal[0]+fSignal[1]+fSignal[3]+fSignal[4]) < semicentralWin[1]
131      &&
132      fSignal[2] > zemThr)
133         return kTRUE;
134   else return kFALSE;
135 }
136
137 //______________________________________________________________________________________________
138 Bool_t AliZDCTriggerProcessor::EMDTrigger()
139 {
140   // is the processed an EMD event?
141   
142   const Float_t* emdWin =   fTriggerParam->GetADCEMDWindow();
143   // check whether ZNA AND ZNC signals fall into the 
144   // 2 distinct windows defined for EMD trigger
145   if(fSignal[0] > emdWin[0] && fSignal[0] < emdWin[1]
146      &&
147      fSignal[3] > emdWin[2] && fSignal[3] < emdWin[3])
148         return kTRUE;
149   else return kFALSE;
150 }
151
152 //______________________________________________________________________________________________
153 AliZDCTriggerParameters* AliZDCTriggerProcessor::GetTriggerParamFromOCDB() const
154 {
155   // retrieving trigger parameter configuration form OCDB
156   AliCDBEntry  *entry = AliCDBManager::Instance()->Get("ZDC/Trigger/");
157   if(!entry) AliFatal("No calibration data loaded!");  
158   else{
159     AliZDCTriggerParameters *trigParam = dynamic_cast<AliZDCTriggerParameters*>  (entry->GetObject());
160     if(!trigParam)  AliFatal("Wrong calibration object in calibration  file!");
161
162     return trigParam;
163   }
164 }