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1 | // @(#) $Id$ |
2 | |
3 | #ifndef ALIHLTTPCESDWRITERCOMPONENT_H |
4 | #define ALIHLTTPCESDWRITERCOMPONENT_H |
5 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * |
6 | * See cxx source for full Copyright notice */ |
7 | |
8 | /** @file AliHLTTPCEsdWriterComponent.h |
9 | @author Matthias Richter |
10 | @date |
11 | @brief Writer component to store tracks of the HLT TPC conformal |
12 | mapping tracker in the AliESD format |
13 | |
14 | */ |
15 | #include "AliHLTRootFileWriterComponent.h" |
16 | |
17 | // forward declarations |
18 | class TTree; |
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19 | class AliESDEvent; |
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20 | class AliHLTTPCTrackArray; |
21 | |
22 | /** |
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23 | * @class AliHLTTPCEsdWriterComponent |
24 | * This class translates incoming track segments structures from the TPC |
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25 | * conformal mapping tracker (datatype TRAKSEGS/TPC) or tracks in global |
26 | * coordinates from the AliHLTTPCGlobalMergerComponent (TRACKS/TPC) into |
27 | * the ESD fromat and writes it to a ROOT file. In case of TRAKSEGS, the |
28 | * component can only process data block containing data of one slice, but |
29 | * it can read an unlimeted number of data blocks. |
30 | * |
31 | * componentid: TPCEsdWriter <br> |
32 | * componentlibrary libAliHLTTPC.so <br> |
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33 | * Arguments: <br> |
34 | * <!-- NOTE: ignore the \li. <i> and </i>: it's just doxygen formating --> |
35 | * \li -datafile <i> filename </i> <br> |
36 | * file name base |
37 | * \li -directory <i> directory </i> <br> |
38 | * target directory |
39 | * |
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40 | * <pre> |
41 | * Example usage (HLT configuration file): |
42 | * \<Proc ID="EsdWriter" type="prc"> |
43 | * \<Cmd>AliRootWrapperSubscriber -eventmodulo 1 |
44 | * -componentid TPCEsdWriter |
45 | * -componentlibrary libAliHLTTPC.so |
46 | * -componentargs "-datafile AliESDs.root" |
47 | * \</Cmd> |
48 | * |
49 | * \<Parent>TR0-SC\</Parent> |
50 | * \<Node>master\</Node> |
51 | * \<Shm blocksize="1k" blockcount="1" type="sysv"/> |
52 | * \</Proc> |
53 | * </pre> |
54 | * |
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55 | * @see AliHLTFileWriter and AliHLTRootFileWriterComponent for more parameters |
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56 | */ |
57 | class AliHLTTPCEsdWriterComponent : public AliHLTRootFileWriterComponent |
58 | { |
59 | public: |
60 | /** standard constructor */ |
61 | AliHLTTPCEsdWriterComponent(); |
62 | /** destructor */ |
63 | ~AliHLTTPCEsdWriterComponent(); |
64 | |
65 | /** |
66 | * The id of the component. |
67 | * @return component id (string) |
68 | */ |
69 | const char* GetComponentID() {return "TPCEsdWriter";}; |
70 | |
71 | /** |
72 | * Spawn function. |
73 | * @return new class instance |
74 | */ |
75 | AliHLTComponent* Spawn() {return new AliHLTTPCEsdWriterComponent;} |
76 | |
77 | protected: |
78 | /** |
79 | * Data processing method for the component. |
80 | * The function can be overloaded by specific ROOT file writer |
81 | * components. |
82 | * @param evtData event data structure |
83 | * @param blocks input data block descriptors |
84 | * @param trigData trigger data structure |
85 | */ |
86 | virtual int DumpEvent( const AliHLTComponentEventData& evtData, |
87 | const AliHLTComponentBlockData* blocks, |
88 | AliHLTComponentTriggerData& trigData ); |
89 | |
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90 | using AliHLTRootFileWriterComponent::DumpEvent; |
91 | |
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92 | /** |
93 | * Scan one argument and adjacent parameters. |
94 | * @param argc size of the argument array |
95 | * @param argv agument array for component initialization |
96 | * @return number of processed members of the argv <br> |
97 | * -EINVAL unknown argument <br> |
98 | * -EPROTO parameter for argument missing <br> |
99 | */ |
100 | int ScanArgument(int argc, const char** argv); |
101 | |
102 | private: |
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103 | /** copy constructor prohibited */ |
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104 | AliHLTTPCEsdWriterComponent(const AliHLTTPCEsdWriterComponent&); |
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105 | /** assignment operator prohibited */ |
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106 | AliHLTTPCEsdWriterComponent& operator=(const AliHLTTPCEsdWriterComponent&); |
107 | |
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108 | /** |
109 | * Init the writer. |
110 | * The DoInit function is not available for this child class. InitWriter is the |
111 | * corresponding function for classes derived from AliHLTFileWriter. |
112 | */ |
113 | int InitWriter(); |
114 | |
115 | /** |
116 | * Init the writer. |
117 | * The DoDeinit function is not available for this child class. CloseWriter is the |
118 | * corresponding function for classes derived from AliHLTFileWriter. |
119 | */ |
120 | int CloseWriter(); |
121 | |
122 | /** |
123 | * Covert tracks to AliTPCtracks (AliKalmanTracks) and add them to ESD. |
124 | * @param pTracks array of tracks |
125 | * @param pESD pointer to ESD |
126 | * @return neg. error code if failed |
127 | */ |
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128 | int Tracks2ESD(AliHLTTPCTrackArray* pTracks, AliESDEvent* pESD); |
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129 | |
130 | /** the ESD tree */ |
131 | TTree* fTree; //! transient value |
132 | |
133 | /** the ESD */ |
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134 | AliESDEvent* fESD; //! transient value |
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135 | |
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136 | ClassDef(AliHLTTPCEsdWriterComponent, 1) |
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137 | }; |
138 | #endif |