4 #ifndef ALIHLTESDMANAGERIMPLEMENTATION_H
5 #define ALIHLTESDMANAGERIMPLEMENTATION_H
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 *
10 /** @file AliHLTEsdManagerImplementation.h
11 @author Matthias Richter
13 @brief Implementation of the AliHLTEsdManager
16 #include "AliHLTEsdManager.h"
25 * @class AliHLTEsdManagerImplementation
26 * Implementation of the AliHLTEsdManager.
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
33 * @ingroup alihlt_aliroot_reconstruction
35 class AliHLTEsdManagerImplementation : public AliHLTEsdManager {
38 AliHLTEsdManagerImplementation();
40 virtual ~AliHLTEsdManagerImplementation();
43 * Convert data buffer to ESD.
44 * The buffer is supposed to describe a streamed AliESDEvent object.
45 * If no target object is specified, the ESD is written to a file AliHLTdetESDs.root,
46 * where 'det' is derived from the data type origin. Each time the function is invoked
47 * a new event is created. Dummy events are added if the previous events did not contain
49 * @param pBuffer [in] the data buffer
50 * @param size [in] data buffer size
51 * @param dt [in] data type of the block
52 * @param tgtesd [out] optional target
53 * @param eventno [in] optional event no
55 int WriteESD(const AliHLTUInt8_t* pBuffer, AliHLTUInt32_t size, AliHLTComponentDataType dt,
56 AliESDEvent* tgtesd=NULL, int eventno=-1);
59 * Merge content of source ESD into the target ESD.
60 * Merging is done on the level of objects in the ESD and for the
61 * moment it's only implemented for the TClonesArrays. In that case it's
62 * easy to detect whether the object is empty or not.
64 * \b Note: The function can not match entries of the same type, like e.g.
65 * tracks from the 'Tracks' member.
67 int Merge(AliESDEvent* pTgt, AliESDEvent* pSrc) const;
70 * Align all ESD to the same number of events.
71 * The function adds empty events to all ESD files if their event number
72 * does not match the specified one.
73 * @param eventno the desired event no
74 * @return neg. error code if failed
76 int PadESDs(int eventno);
79 * Set the target directory for the ESD files.
81 void SetDirectory(const char* directory);
84 * Get the list of the internally created files.
85 * Returns a blank separated list of the file names.
87 TString GetFileNames(AliHLTComponentDataType dt=kAliHLTAnyDataType) const;
90 * Embed an ESD into a TTree object.
91 * The tree object needs to be deleted by the caller.
93 static TTree* EmbedIntoTree(AliESDEvent* pESD, const char* name="esdTree", const char* title="Tree with HLT ESD objects");
98 /** copy constructor prohibited */
99 AliHLTEsdManagerImplementation(const AliHLTEsdManagerImplementation&);
100 /** assignment operator prohibited */
101 AliHLTEsdManagerImplementation& operator=(const AliHLTEsdManagerImplementation&);
103 class AliHLTEsdListEntry : public AliHLTLogging {
106 AliHLTEsdListEntry(AliHLTComponentDataType dt);
108 ~AliHLTEsdListEntry();
111 * Write the ESD to the corresponding file.
112 * The tree is first synchronized with the eventno and additional empty
113 * events might be inserted if there was a gap. Since we are writing
114 * several files in parallel, we have to make sure that those files contain
115 * the same number of events.
116 * @param pESD ESD to write
117 * @param eventno optional event no for tree synchronization
119 int WriteESD(AliESDEvent* pESD, int eventno=-1);
122 * Set the target directory for the ESD file.
124 void SetDirectory(const char* directory);
127 * Delete the ESD file.
132 * Get name of the ESD file.
134 const char* GetFileName() const;
137 * Get the object name prefix generated from the data origin
138 * The prefix is added to the names of the ESD objects when copied to the
141 const char* GetPrefix();
143 bool operator==(AliHLTComponentDataType dt) const;
146 /** copy constructor prohibited */
147 AliHLTEsdListEntry(const AliHLTEsdListEntry& src);
148 /** assignment operator prohibited */
149 AliHLTEsdListEntry& operator=(const AliHLTEsdListEntry& src);
152 * Write ESD to temporary file.
153 * The ESD is embedded into a tree and saved to a temporary file.
154 * The file name is retrieved by TSystem::GetTempFileName and returned
156 * @return file name, empty on failure
158 TString WriteTempFile(AliESDEvent* pESD) const;
160 /** root file name */
161 TString fName; //!transient
162 /** target directory */
163 TString fDirectory; //!transient
164 /** data type of the corresponding block */
165 AliHLTComponentDataType fDt; //!transient
166 /** the root file for this esd */
167 TFile* fpFile; //!transient
168 /** the tree for this esd */
169 TTree* fpTree; //!transient
170 /** the esd to fill into the tree */
171 AliESDEvent* fpEsd; //!transient
172 /** Prefix for generated ESD objects in the master ESD */
173 TString fPrefix; //!transient
176 typedef vector<AliHLTEsdListEntry*> AliHLTEsdPList;
179 * Find list entry for given data type
181 AliHLTEsdListEntry* Find(AliHLTComponentDataType dt) const;
183 /** the list of the ESDs */
184 AliHLTEsdPList fESDs; //!transient
186 /** target directory */
187 TString fDirectory; //!transient
189 ClassDef(AliHLTEsdManagerImplementation, 1)