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90ebac25 | 1 | //-*- Mode: C++ -*- |
2 | // @(#) $Id$ | |
3 | ||
4 | #ifndef ALIHLTLOADERPUBLISHERCOMPONENT_H | |
5 | #define ALIHLTLOADERPUBLISHERCOMPONENT_H | |
79c114b5 | 6 | /* This file is property of and copyright by the ALICE HLT Project * |
7 | * ALICE Experiment at CERN, All rights reserved. * | |
90ebac25 | 8 | * See cxx source for full Copyright notice */ |
9 | ||
10 | /** @file AliHLTLoaderPublisherComponent.h | |
11 | @author Matthias Richter | |
12 | @date | |
13 | @brief A general tree publisher component for the AliLoader. | |
14 | */ | |
15 | ||
16 | #include "AliHLTOfflineDataSource.h" | |
17 | ||
18 | class AliLoader; | |
19 | ||
20 | /** | |
21 | * @class AliHLTLoaderPublisherComponent | |
22 | * A general tree publisher component for the AliLoader. | |
23 | * | |
24 | * Component ID: \b AliLoaderPublisher <br> | |
25 | * Library: \b libAliHLTUtil. | |
26 | * | |
27 | * Mandatory arguments: <br> | |
28 | * <!-- NOTE: ignore the \li. <i> and </i>: it's just doxygen formating --> | |
29 | * \li -loader <i> loader name </i> | |
30 | * e.g. <tt> -loader TPCLoader </tt> | |
31 | * \li -tree <i> tree name </i> : digits (default), clusters | |
32 | * e.g. <tt> -tree digits </tt> | |
33 | * \li -verbose<br> | |
34 | * print out some more info messages, mainly for the sake of tutorials | |
35 | * \li -datatype <i> datatype dataorigin </i> <br> | |
36 | * data type ID and origin, e.g. <tt>-datatype DIGITS TPC </tt> | |
37 | * \li -dataspec <i> specification </i> <br> | |
38 | * data specification treated as decimal number or hex number if | |
39 | * prepended by '0x' | |
40 | * | |
41 | * Optional arguments:<br> | |
42 | * | |
43 | * | |
44 | * @ingroup alihlt_system | |
45 | */ | |
46 | class AliHLTLoaderPublisherComponent : public AliHLTOfflineDataSource { | |
47 | public: | |
48 | /** standard constructor */ | |
49 | AliHLTLoaderPublisherComponent(); | |
50 | /** destructor */ | |
51 | virtual ~AliHLTLoaderPublisherComponent(); | |
52 | ||
53 | /** | |
54 | * Get the id of the component. | |
55 | * Each component is identified by a unique id. | |
56 | * The function is pure virtual and must be implemented by the child class. | |
57 | * @return component id (string) | |
58 | */ | |
59 | const char* GetComponentID(); | |
60 | ||
61 | /** | |
62 | * Get the output data type of the component. | |
63 | * The function is pure virtual and must be implemented by the child class. | |
64 | * @return output data type | |
65 | */ | |
66 | AliHLTComponentDataType GetOutputDataType(); | |
67 | ||
68 | /** | |
69 | * Get a ratio by how much the data volume is shrinked or enhanced. | |
70 | * The function is pure virtual and must be implemented by the child class. | |
71 | * @param constBase <i>return</i>: additive part, independent of the | |
72 | * input data volume | |
73 | * @param inputMultiplier <i>return</i>: multiplication ratio | |
74 | * @return values in the reference variables | |
75 | */ | |
76 | void GetOutputDataSize( unsigned long& constBase, double& inputMultiplier ); | |
77 | ||
78 | /** | |
79 | * Spawn function. | |
80 | * Each component must implement a spawn function to create a new instance of | |
81 | * the class. Basically the function must return <i>new <b>my_class_name</b></i>. | |
82 | * @return new class instance | |
83 | */ | |
84 | virtual AliHLTComponent* Spawn(); | |
85 | ||
86 | protected: | |
87 | /** | |
88 | * Init method. | |
89 | */ | |
90 | int DoInit( int argc, const char** argv ); | |
91 | ||
92 | /** | |
93 | * Deinit method. | |
94 | */ | |
95 | int DoDeinit(); | |
96 | ||
97 | /** | |
98 | * Data source method. | |
99 | * @param evtData event data structure | |
100 | * @param trigData trigger data structure | |
101 | * @return | |
102 | */ | |
103 | int GetEvent(const AliHLTComponentEventData& evtData, | |
104 | AliHLTComponentTriggerData& trigData); | |
105 | ||
106 | private: | |
29312178 | 107 | /** copy constructor prohibited */ |
79c114b5 | 108 | AliHLTLoaderPublisherComponent(const AliHLTLoaderPublisherComponent&); |
29312178 | 109 | /** assignment operator prohibited */ |
79c114b5 | 110 | AliHLTLoaderPublisherComponent& operator=(const AliHLTLoaderPublisherComponent&); |
111 | ||
90ebac25 | 112 | /** |
113 | * Get tree of type specified in fTreeType from loader. | |
114 | */ | |
115 | TTree* GetTree(); | |
116 | ||
56951e49 | 117 | /** max output block size, estimated during DoInit */ |
90ebac25 | 118 | Int_t fMaxSize; //!transient |
119 | ||
120 | /** loader string */ | |
121 | TString fLoaderType; //!transient | |
122 | ||
123 | /** tree string */ | |
124 | TString fTreeType; //!transient | |
125 | ||
126 | /** be verbose: info printouts */ | |
127 | Bool_t fVerbose; //!transient | |
128 | ||
129 | /** data type */ | |
130 | AliHLTComponentDataType fDataType; //!transient | |
131 | ||
132 | /** data specification */ | |
133 | AliHLTUInt32_t fSpecification; //!transient | |
134 | ||
135 | /** instance of the AliLoader */ | |
136 | AliLoader* fpLoader; //!transient | |
137 | ||
138 | ClassDef(AliHLTLoaderPublisherComponent, 0); | |
139 | }; | |
140 | ||
141 | #endif |