1 #ifndef ALIMUONDIGITIZER_H
2 #define ALIMUONDIGITIZER_H
3 /* Copyright(c) 1998-2001, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
7 // Revision of includes 07/05/2004
10 /// \class AliMUONDigitizer
11 /// \brief Class for MUON merging/digitization
13 #include "AliDigitizer.h"
14 #include "AliMUONDigit.h"
16 class AliRunDigitizer;
18 class AliMUONHitMapA1;
22 class AliMUONTransientDigit;
23 class AliMUONTriggerDecision;
25 class AliMUONDigitizer : public AliDigitizer
29 /* Default constructor initializes all the internal pointers to NULL.
33 /* Constructor initialises all the internal pointers to NULL and
34 sets this digitizers manager to the one specified.
36 AliMUONDigitizer(AliRunDigitizer * manager);
39 virtual ~AliMUONDigitizer();
41 // The Init method does nothing.
42 // All initialization happens in Exec at the moment.
43 virtual Bool_t Init();
45 // Override the TTask Exec method.
46 virtual void Exec(Option_t* option = 0);
49 AliMUONDigitizer(const AliMUONDigitizer& rhs);
50 AliMUONDigitizer& operator=(const AliMUONDigitizer& rhs);
52 /* Digitizers inheriting from AliMUONDigitizer should implement this abstract method
53 so that TransientDigit objects are generated and put onto the fTDList.
54 The method would be implemented as some loop over the input stream. The data can be
55 fetched from the fMUONData pointer. To add to the fTDList once should use code similar
58 TObject* source_object; // Assume the object from which the transient digit
59 // is created is already initialized at this point.
60 AliMUONTransientDigit* td = new AliMUONTransientDigit();
61 // Initialize the transient digit.
64 // The following line of code is required to have working digitisers that want
65 // to store information about which digits were created from which hits.
66 OnCreateTransientDigit(td, source_object);
68 AddOrUpdateTransientDigit(td); // Adds to the fTDList preventing duplicates.
70 virtual void GenerateTransientDigits() = 0;
72 // Loops over the fTDList of transient digits to write them to the output stream.
73 virtual void CreateDigits();
75 /* Inheriting digitizers should implement this method to prepare the fMUONData
76 object before GenerateTransientDigits() is called.
77 If the initialization was successful then kTRUE should be returned otherwise
78 kFALSE should be returned.
80 virtual Bool_t InitInputData(AliMUONLoader* muonloader) = 0;
82 /* This method should be overridden to undo/cleanup what was done in the
83 InitInputData method call.
85 virtual void CleanupInputData(AliMUONLoader* muonloader) = 0;
87 /* Inheriting digitizers should implement this method to prepare the fMUONData
88 object before CreateDigits() is called.
89 If the initialization was successful then kTRUE should be returned otherwise
90 kFALSE should be returned.
92 virtual Bool_t InitOutputData(AliMUONLoader* muonloader) = 0;
94 /* When all the data is added to the fMUONData object and the trees need to be
95 filled then this method is called by CreateDigits().
98 should go into this method.
100 virtual void FillOutputData() = 0;
102 /* This method should be overridden to undo/cleanup what was done in the
103 InitOutputData method call.
105 virtual void CleanupOutputData(AliMUONLoader* muonloader) = 0;
107 /* This is called by CreateDigits when it wants the Signal value that will be written
108 to the output stream. Inheriting digitizers can override this to apply some kind
109 of detector response.
111 virtual Int_t GetSignalFrom(AliMUONTransientDigit* td) = 0;
113 /* Should be overridden by inheriting digitizers such that this method adds the digits
116 virtual void AddDigit(Int_t chamber, Int_t tracks[kMAXTRACKS], Int_t charges[kMAXTRACKS], Int_t digits[7]) = 0;
118 /* Should be called by GenerateTransientDigits() when a new transient digit is generated
119 form a source object from the input stream. The source object could be an AliMUONHit
120 or AliMUONSDigit for example.
122 virtual void OnCreateTransientDigit(AliMUONTransientDigit* /*digit*/, TObject* /*source_object*/);
124 /* Called by AddDigit(AliMUONTransientDigit*, Int_t) when transient digit is added to the
125 fMUONData object ready for writing to the data trees.
127 virtual void OnWriteTransientDigit(AliMUONTransientDigit* digit);
129 // Wrapper method for AddDigit(Int_t, Int_t[kMAXTRACKS], Int_t[kMAXTRACKS], Int_t[6])
130 void AddDigit(AliMUONTransientDigit* td, Int_t responseCharge, Int_t digitindex);
132 // Creates a new fTDList object, and creates and fills the fHitMap arrays.
133 // Note: this method assumes the array pointers are NULL when calling this method.
136 // Frees the memory allocated for fTDList and the fHitMap arrays.
137 void CleanupArrays();
139 /* Gets the run loader and muon loader pointers from the given folder name. If an error
140 occurred then kFALSE is returned else kTRUE on success.
142 Bool_t FetchLoaders(const char* foldername, AliRunLoader*& runloader, AliMUONLoader*& muonloader);
144 /* Gets the gAlice, and MUON module pointers from the specified run loader. If an error
145 occurred then kFALSE is returned else kTRUE on success.
147 Bool_t FetchGlobalPointers(AliRunLoader* runloader);
149 // Adds the transient digit uniquely to the fTDList.
150 void AddOrUpdateTransientDigit(AliMUONTransientDigit* mTD);
152 // Updates a TransientDigit in fTDList
153 void UpdateTransientDigit(AliMUONTransientDigit * mTD);
155 // Adds the new TransientDigit to fTDList
156 void AddTransientDigit(AliMUONTransientDigit * mTD);
158 // Verify that a TransientDigit already exists.
159 Bool_t ExistTransientDigit(AliMUONTransientDigit * mTD);
161 // Sorts the 3 most significant tracks.
162 void SortTracks(Int_t *tracks, Int_t *charges, Int_t ntr) const;
165 virtual Bool_t FetchTriggerPointer(AliMUONLoader* loader);
166 virtual void CreateTrigger() = 0;
167 virtual void CleanupTriggerArrays() = 0;
168 virtual void FillTriggerOutput() = 0;
169 virtual void AddDigitTrigger(
170 Int_t chamber, Int_t tracks[kMAXTRACKS],
171 Int_t charges[kMAXTRACKS], Int_t digits[6],
172 Int_t digitindex ) = 0;
174 AliRunLoader* fRunLoader; //! Global run loader.
175 AliMUONLoader* fGime; //! MUON specific loader.
176 AliMUON* fMUON; //! Pointer to MUON module.
177 AliMUONData* fMUONData; //! muon data interface
178 AliMUONTriggerDecision* fTrigDec; //!trigger pointer
180 AliMUONHitMapA1 **fHitMap; //! pointer to array of pointers to hitmaps
181 TObjArray *fTDList; //! list of AliMUONTransientDigits
182 Int_t fTDCounter; //! nr. of AliMUONTransientDigit
183 Int_t fMask; //! mask dependent on input file
184 Bool_t fSignal; //! kTRUE if signal file is processed
185 Int_t fSegmentation; //! segmentation type 1=old, 2=new;
186 Int_t fNDetElemId[1500]; //! detection element number array
191 ClassDef(AliMUONDigitizer, 1) // MUON merging/digitization