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a3ec8572 | 1 | //-*- Mode: C++ -*- |
2 | // $Id$ | |
46906312 | 3 | #ifndef ALIHLTTRIGGERBARRELGEOMMULTIPLICITY_H |
4 | #define ALIHLTTRIGGERBARRELGEOMMULTIPLICITY_H | |
5 | //* This file is property of and copyright by the ALICE HLT Project * | |
6 | //* ALICE Experiment at CERN, All rights reserved. * | |
7 | //* See cxx source for full Copyright notice * | |
8 | ||
9 | /// @file AliHLTTriggerBarrelGeomMultiplicity.h | |
10 | /// @author Oystein Djuvsland | |
11 | /// @date 2009-10-08 | |
12 | /// @brief HLT trigger component for charged particle multiplicity in | |
13 | /// a geometrical selection of the central barrel. | |
14 | ||
15 | #include "AliHLTTrigger.h" | |
fde46e9e | 16 | |
17 | class AliHLTTriggerDecisionParameters; | |
18 | ||
46906312 | 19 | /** |
20 | * @class AliHLTTriggerBarrelGeomMultiplicity | |
21 | * HLT trigger component for charged particle multiplicity in the | |
22 | * central barrel. | |
23 | * | |
c308d915 | 24 | * Triggers on charged particle number in a certain geometrical acceptance |
46906312 | 25 | * |
26 | * <h2>General properties:</h2> | |
27 | * | |
28 | * Component ID: \b BarrelGeomMultiplicityTrigger <br> | |
29 | * Library: \b libAliHLTTrigger.so <br> | |
30 | * Input Data Types: kAliHLTDataTypeESDObject, kAliHLTDataTypeESDTree | |
31 | * kAliHLTDataTypeTrack <br> | |
32 | * Output Data Types: ::kAliHLTAnyDataType <br> | |
33 | * | |
34 | * <h2>Mandatory arguments:</h2> | |
35 | * <!-- NOTE: ignore the \li. <i> and </i>: it's just doxygen formatting --> | |
c308d915 | 36 | * \li -triggername <i> n </i> <br> |
37 | * specifies which configuration object to use for the trigger | |
46906312 | 38 | * |
39 | * <h2>Optional arguments:</h2> | |
40 | * <!-- NOTE: ignore the \li. <i> and </i>: it's just doxygen formatting --> | |
c308d915 | 41 | * \li -geomfile <i> n </i> <br> |
42 | * specifies root file containing configuration objects | |
46906312 | 43 | * |
44 | * <h2>Configuration:</h2> | |
45 | * <!-- NOTE: ignore the \li. <i> and </i>: it's just doxygen formatting --> | |
46 | * \li -mintracks <i> n </i> <br> | |
47 | * required number of tracks for a trigger | |
46906312 | 48 | * \li -solenoidBz <i> field </i> <br> |
49 | * magnetic field needed if the input is not an ESD object | |
50 | * | |
51 | * By default, configuration is loaded from OCDB, can be overridden by | |
52 | * component arguments. | |
53 | * | |
54 | * <h2>Default CDB entries:</h2> | |
c308d915 | 55 | * HLT/ConfigHLT/BarrelGeomMultiplicityTrigger/<triggername>: TObjArray storing the |
56 | * geometries and readout parameters. | |
46906312 | 57 | * HLT/ConfigHLT/Solenoidbz: TObjString -solenoidBz field |
58 | * | |
59 | * <h2>Performance:</h2> | |
60 | * | |
61 | * | |
62 | * <h2>Memory consumption:</h2> | |
63 | * | |
64 | * | |
65 | * <h2>Output size:</h2> | |
66 | * | |
67 | * | |
68 | * \ingroup alihlt_trigger_components | |
69 | */ | |
70 | class AliHLTTriggerBarrelGeomMultiplicity : public AliHLTTrigger | |
71 | { | |
72 | public: | |
1ecefac2 | 73 | |
46906312 | 74 | AliHLTTriggerBarrelGeomMultiplicity(); |
75 | ~AliHLTTriggerBarrelGeomMultiplicity(); | |
76 | ||
46906312 | 77 | /// inherited from AliHLTComponent: create an instance |
78 | virtual AliHLTComponent* Spawn(); | |
79 | ||
1ecefac2 | 80 | /// inherited from AliHLTTrigger: name of this trigger |
81 | virtual const char* GetTriggerName() const; | |
82 | ||
46906312 | 83 | protected: |
84 | /// inherited from AliHLTComponent: handle the initialization | |
85 | int DoInit(int argc, const char** argv); | |
86 | ||
87 | /// inherited from AliHLTComponent: handle cleanup | |
88 | int DoDeinit(); | |
89 | ||
46906312 | 90 | /// inherited from AliHLTComponent: handle dcs update event |
91 | int ReadPreprocessorValues(const char* modules); | |
92 | ||
93 | /// inherited from AliHLTComponent, scan one argument and | |
94 | /// its parameters | |
1ecefac2 | 95 | virtual int ScanConfigurationArgument(int argc, const char** argv); |
96 | ||
97 | // Get the detector geometries from CDB entry | |
98 | virtual int GetDetectorGeomsFromCDBObject(const char *cdbEntry, const char *chainId); | |
99 | ||
100 | // Get the detector geometries from a root file | |
101 | virtual int GetDetectorGeomsFromFile(const char *filename); | |
102 | ||
103 | /// inherited from AliHLTComponent: handle re-configuration event | |
104 | int Reconfigure(const char* cdbEntry = 0, const char* chainId = 0); | |
46906312 | 105 | |
106 | private: | |
107 | ||
108 | /// inherited from AliHLTTrigger: calculate the trigger | |
1ecefac2 | 109 | virtual int DoTrigger(); |
46906312 | 110 | |
111 | /// check whether a track meets the criteria | |
112 | template<class T> | |
113 | bool CheckCondition(T* track, float b); | |
114 | ||
115 | // check whether a track is in the desired detectors | |
1ecefac2 | 116 | template<class T> |
117 | bool IsInDetectors(T* track, float b); | |
118 | ||
119 | // magnetic field (dca estimation for) | |
120 | Float_t fSolenoidBz; | |
121 | ||
122 | // minimum number of tracks satisfying the cut | |
123 | Int_t fMinTracks; | |
124 | ||
125 | // array of (sub-)detectors to trigger on | |
126 | TObjArray *fDetectorArray; // !transient | |
127 | ||
fde46e9e | 128 | // Trigger decision parameters |
129 | AliHLTTriggerDecisionParameters *fTriggerDecisionPars; //!transient | |
1ecefac2 | 130 | |
131 | // The trigger name | |
132 | char *fTriggerName; //!transient | |
133 | ||
c308d915 | 134 | // the default configuration entry for this component |
1ecefac2 | 135 | char* fOCDBEntry; //!transient |
46906312 | 136 | |
b210e538 | 137 | /** Keep the copy constructor private since it should not be used */ |
138 | AliHLTTriggerBarrelGeomMultiplicity(const AliHLTTriggerBarrelGeomMultiplicity & ); | |
139 | ||
140 | /** Keep the assignement operator private since it should not be used */ | |
141 | AliHLTTriggerBarrelGeomMultiplicity & operator = (const AliHLTTriggerBarrelGeomMultiplicity &); | |
46906312 | 142 | |
1ecefac2 | 143 | ClassDef(AliHLTTriggerBarrelGeomMultiplicity, 0); |
46906312 | 144 | |
145 | }; | |
146 | ||
1ecefac2 | 147 | #endif |