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1 | //-*- Mode: C++ -*- |
2 | // $Id$ |
3 | |
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4 | #ifndef ALIHLTESDMANAGERIMPLEMENTATION_H |
5 | #define ALIHLTESDMANAGERIMPLEMENTATION_H |
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6 | //* This file is property of and copyright by the ALICE HLT Project * |
7 | //* ALICE Experiment at CERN, All rights reserved. * |
8 | //* See cxx source for full Copyright notice * |
9 | |
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10 | /** @file AliHLTEsdManagerImplementation.h |
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11 | @author Matthias Richter |
12 | @date |
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13 | @brief Implementation of the AliHLTEsdManager |
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14 | */ |
15 | |
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16 | #include "AliHLTEsdManager.h" |
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17 | #include "TString.h" |
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18 | #include <vector> |
19 | |
20 | class AliESDEvent; |
21 | class TTree; |
22 | class TFile; |
23 | |
24 | /** |
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25 | * @class AliHLTEsdManagerImplementation |
26 | * Implementation of the AliHLTEsdManager. |
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27 | * |
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28 | * For the sake of library (in)dependencies, the concrete implementation of |
29 | * the AliHLTEsdManager is separated from the libHLTbase class as this would |
30 | * introduce dependencies to AliRoot libraries. See AliHLTEsdManager for |
31 | * usage. |
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32 | * |
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33 | * @ingroup alihlt_aliroot_reconstruction |
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34 | */ |
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35 | class AliHLTEsdManagerImplementation : public AliHLTEsdManager { |
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36 | public: |
37 | /** constructor */ |
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38 | AliHLTEsdManagerImplementation(); |
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39 | /** destructor */ |
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40 | virtual ~AliHLTEsdManagerImplementation(); |
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41 | |
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42 | /** |
43 | * Inherited from base class, see AliHLTEsdManager::SetOption() for |
44 | * documentation. |
45 | */ |
46 | virtual int SetOption(const char* option); |
47 | |
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48 | /** |
49 | * Convert data buffer to ESD. |
50 | * The buffer is supposed to describe a streamed AliESDEvent object. |
51 | * If no target object is specified, the ESD is written to a file AliHLTdetESDs.root, |
52 | * where 'det' is derived from the data type origin. Each time the function is invoked |
53 | * a new event is created. Dummy events are added if the previous events did not contain |
54 | * |
55 | * @param pBuffer [in] the data buffer |
56 | * @param size [in] data buffer size |
57 | * @param dt [in] data type of the block |
58 | * @param tgtesd [out] optional target |
59 | * @param eventno [in] optional event no |
60 | */ |
61 | int WriteESD(const AliHLTUInt8_t* pBuffer, AliHLTUInt32_t size, AliHLTComponentDataType dt, |
62 | AliESDEvent* tgtesd=NULL, int eventno=-1); |
63 | |
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64 | /** |
65 | * Merge content of source ESD into the target ESD. |
66 | * Merging is done on the level of objects in the ESD and for the |
67 | * moment it's only implemented for the TClonesArrays. In that case it's |
68 | * easy to detect whether the object is empty or not. |
69 | * |
70 | * \b Note: The function can not match entries of the same type, like e.g. |
71 | * tracks from the 'Tracks' member. |
72 | */ |
73 | int Merge(AliESDEvent* pTgt, AliESDEvent* pSrc) const; |
74 | |
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75 | /** |
76 | * Align all ESD to the same number of events. |
77 | * The function adds empty events to all ESD files if their event number |
78 | * does not match the specified one. |
79 | * @param eventno the desired event no |
80 | * @return neg. error code if failed |
81 | */ |
82 | int PadESDs(int eventno); |
83 | |
84 | /** |
85 | * Set the target directory for the ESD files. |
86 | */ |
87 | void SetDirectory(const char* directory); |
88 | |
89 | /** |
90 | * Get the list of the internally created files. |
91 | * Returns a blank separated list of the file names. |
92 | */ |
93 | TString GetFileNames(AliHLTComponentDataType dt=kAliHLTAnyDataType) const; |
94 | |
95 | /** |
96 | * Embed an ESD into a TTree object. |
97 | * The tree object needs to be deleted by the caller. |
98 | */ |
99 | static TTree* EmbedIntoTree(AliESDEvent* pESD, const char* name="esdTree", const char* title="Tree with HLT ESD objects"); |
100 | |
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101 | protected: |
102 | |
103 | private: |
104 | /** copy constructor prohibited */ |
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105 | AliHLTEsdManagerImplementation(const AliHLTEsdManagerImplementation&); |
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106 | /** assignment operator prohibited */ |
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107 | AliHLTEsdManagerImplementation& operator=(const AliHLTEsdManagerImplementation&); |
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108 | |
109 | class AliHLTEsdListEntry : public AliHLTLogging { |
110 | public: |
111 | /** constructor */ |
112 | AliHLTEsdListEntry(AliHLTComponentDataType dt); |
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113 | /** destructor */ |
114 | ~AliHLTEsdListEntry(); |
115 | |
116 | /** |
117 | * Write the ESD to the corresponding file. |
118 | * The tree is first synchronized with the eventno and additional empty |
119 | * events might be inserted if there was a gap. Since we are writing |
120 | * several files in parallel, we have to make sure that those files contain |
121 | * the same number of events. |
122 | * @param pESD ESD to write |
123 | * @param eventno optional event no for tree synchronization |
124 | */ |
125 | int WriteESD(AliESDEvent* pESD, int eventno=-1); |
126 | |
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127 | /** |
128 | * Set the target directory for the ESD file. |
129 | */ |
130 | void SetDirectory(const char* directory); |
131 | |
132 | /** |
133 | * Delete the ESD file. |
134 | */ |
135 | void Delete(); |
136 | |
137 | /** |
138 | * Get name of the ESD file. |
139 | */ |
140 | const char* GetFileName() const; |
141 | |
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142 | /** |
143 | * Get the object name prefix generated from the data origin |
144 | * The prefix is added to the names of the ESD objects when copied to the |
145 | * master ESD. |
146 | */ |
147 | const char* GetPrefix(); |
148 | |
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149 | bool operator==(AliHLTComponentDataType dt) const; |
150 | |
151 | private: |
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152 | /** copy constructor prohibited */ |
153 | AliHLTEsdListEntry(const AliHLTEsdListEntry& src); |
154 | /** assignment operator prohibited */ |
155 | AliHLTEsdListEntry& operator=(const AliHLTEsdListEntry& src); |
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156 | |
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157 | /** |
158 | * Write ESD to temporary file. |
159 | * The ESD is embedded into a tree and saved to a temporary file. |
160 | * The file name is retrieved by TSystem::GetTempFileName and returned |
161 | * on success. |
162 | * @return file name, empty on failure |
163 | */ |
164 | TString WriteTempFile(AliESDEvent* pESD) const; |
165 | |
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166 | /** root file name */ |
167 | TString fName; //!transient |
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168 | /** target directory */ |
169 | TString fDirectory; //!transient |
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170 | /** data type of the corresponding block */ |
171 | AliHLTComponentDataType fDt; //!transient |
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172 | /** the root file for this esd */ |
173 | TFile* fpFile; //!transient |
174 | /** the tree for this esd */ |
175 | TTree* fpTree; //!transient |
176 | /** the esd to fill into the tree */ |
177 | AliESDEvent* fpEsd; //!transient |
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178 | /** Prefix for generated ESD objects in the master ESD */ |
179 | TString fPrefix; //!transient |
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180 | }; |
181 | |
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182 | typedef vector<AliHLTEsdListEntry*> AliHLTEsdPList; |
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183 | |
184 | /** |
185 | * Find list entry for given data type |
186 | */ |
187 | AliHLTEsdListEntry* Find(AliHLTComponentDataType dt) const; |
188 | |
189 | /** the list of the ESDs */ |
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190 | AliHLTEsdPList fESDs; //!transient |
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191 | |
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192 | /** target directory */ |
193 | TString fDirectory; //!transient |
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194 | /** write local files */ |
195 | bool fWriteLocal; //!transient |
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196 | |
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197 | ClassDef(AliHLTEsdManagerImplementation, 2) |
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198 | }; |
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199 | |
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200 | #endif |