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acf07b19 | 1 | // $Id$ |
2 | /** | |
3 | * @file sampleAliHLTOUTHandlerEsdBranch.C | |
4 | * @brief Example macro to illustrate function of AliHLTOUTHandlerEsdBranch. | |
5 | * @note Macro requires simulated raw data, please run e.g. ppbench setup. | |
6 | * | |
7 | * HLTOUT handlers inherit from class AliHLTOUTHandler and are utilized to | |
8 | * process data blocks in the HLTOUT. As a specific case HLTOUT can contain | |
9 | * data blocks/streamed objects designated for storage in custom ESD branches. | |
10 | * AliHLTOUTHandlerEsdBranch provides an easy way to implement merging of | |
11 | * such blocks/objects into the hltEsd. | |
12 | * | |
13 | * Usage: Simulate a data sample (e.g. ppbench) and run this macro in the | |
14 | * folder for raw data reconstruction. | |
15 | * <pre> | |
16 | * aliroot -b -q -l sampleAliHLTOUTHandlerEsdBranch.C \ | |
17 | * | tee sampleAliHLTOUTHandlerEsdBranch.log | |
18 | * </pre> | |
19 | * | |
20 | * The macro contains 3 parts: | |
21 | * - the hltEsd layout object is adjusted in order to allow for the | |
22 | * new branch | |
23 | * - an object is generated, streamed and saved to file | |
24 | * - a small HLT chain is run | |
25 | * | |
26 | * The HLT chain is as simple as just publishing the binary object file with | |
27 | * the appropriate data type. The published object becomes part of the HLTOUT | |
28 | * and the handler of the AliHLTAgentSample is called as it will announce | |
29 | * the ability to process data blocks of this specific type from HLTOUT. | |
30 | * | |
31 | * @author Matthias.Richter@ift.uib.no | |
32 | * @ingroup alihlt_tutorial | |
33 | */ | |
34 | void sampleAliHLTOUTHandlerEsdBranch() | |
35 | { | |
36 | // require a simulated data sample, e.g. the ppbench setup | |
37 | // we need raw data in order to run a custom HLT chain | |
38 | TString datainput; | |
39 | if (!gSystem->AccessPathName("raw.root")) datainput="raw.root"; | |
40 | else if (!gSystem->AccessPathName("raw0")) datainput="./"; | |
41 | ||
42 | TString grpstorage; | |
43 | if (!gSystem->AccessPathName("GRP/GRP/Data")) grpstorage="local://$PWD"; | |
44 | else if (!gSystem->AccessPathName("../GRP/GRP/Data")) grpstorage="local://$PWD/.."; | |
45 | ||
46 | if (datainput.IsNull() || grpstorage.IsNull()) { | |
47 | cout << "sampleAliHLTOUTHandlerEsdBranch.C: illustrate AliHLTOUTHandlerEsdBranch" << endl; | |
48 | cout << " Usage: aliroot -b -q -l sampleAliHLTOUTHandlerEsdBranch.C" << endl; | |
49 | cout << "" << endl; | |
50 | cout << " Macro requieres a simulated data sample, please run e.g. ppbench setup" << endl; | |
51 | cout << " and run in the folder with the raw data" << endl; | |
52 | if (datainput.IsNull()) cout << "Error: no raw data input found" << endl; | |
53 | if (grpstorage.IsNull()) cout << "Error: no GRP entry found in neither ./ nor ../" << endl; | |
54 | return; | |
55 | } | |
56 | ||
57 | if (!gSystem->AccessPathName("galice.root")) { | |
58 | cout << "AliReconstruction from raw data requires to delete the galice.root file" << endl; | |
59 | cout << "of previous reconstruction cycles. IMPORTANT: do not delete the file in" << endl; | |
60 | cout << "the simulation folder but run in a subfolder like e.g. recraw" << endl; | |
61 | return; | |
62 | } | |
63 | ||
64 | // Basic settings | |
65 | TString command; | |
66 | ||
67 | TString objectFileName=gSystem->TempDirectory(); | |
68 | objectFileName+="/";objectFileName+="inputobject.dat"; | |
69 | ||
70 | // Create the input object | |
71 | TClonesArray* inputObject=new TClonesArray("TNamed"); | |
72 | inputObject->SetName("MyPrivateBranch"); | |
73 | ||
74 | // Init OCDB | |
75 | AliCDBManager * man = AliCDBManager::Instance(); | |
76 | man->SetDefaultStorage("local://$ALICE_ROOT/OCDB"); | |
77 | // set specific storage for GRP entry | |
78 | man->SetSpecificStorage("GRP/GRP/Data", grpstorage); | |
79 | ||
80 | // Adjust hltEsd layout | |
81 | // | |
82 | // in order to allow custom branches for the HLT ESD a layout object is | |
83 | // stored in OCDB. This object will be generated automatically in the future | |
84 | // according to the online setup. It can be adapted manually to enable specific | |
85 | // branches. In this example we add the input object (still an empty TClonesArray) | |
86 | // to the layout and store the object. | |
87 | const char* esdLayoutEntry="HLT/ConfigHLT/esdLayout"; | |
88 | if (gSystem->AccessPathName(esdLayoutEntry)) { | |
89 | command="mkdir -p "; command+=esdLayoutEntry; | |
90 | gSystem->Exec(command); | |
91 | } | |
92 | command="cp $ALICE_ROOT/OCDB/"; command+=esdLayoutEntry; command+="/Run* "; command+=esdLayoutEntry; | |
93 | gSystem->Exec(command); | |
94 | man->SetSpecificStorage(esdLayoutEntry, "local://$PWD"); | |
95 | man->SetRun(0); | |
96 | ||
97 | AliCDBEntry* esdLayoutObject=man->Get(esdLayoutEntry); | |
98 | AliESDEvent* esdLayout=(AliESDEvent*)esdLayoutObject->GetObject(); | |
99 | if (!esdLayout->FindListObject(inputObject->GetName())) { | |
100 | esdLayout->AddObject(inputObject); | |
101 | } | |
102 | man->Put(esdLayout, esdLayoutObject->GetId(), esdLayoutObject->GetMetaData()); | |
103 | man->UnloadFromCache(esdLayoutEntry); | |
104 | ||
105 | // now add some data to the input object, stream it and save to file | |
106 | new ((*inputObject)[inputObject->GetEntriesFast()]) TNamed("data1","some data"); | |
107 | new ((*inputObject)[inputObject->GetEntriesFast()]) TNamed("data2","some more data"); | |
108 | AliHLTMessage* pMsg=AliHLTMessage::Stream(inputObject); | |
109 | if (!pMsg) { | |
110 | cerr << "failed to stream input object" << endl; | |
111 | return; | |
112 | } | |
113 | ofstream objectFile(objectFileName); | |
114 | objectFile.write(pMsg->Buffer(), pMsg->Length()); | |
115 | objectFile.close(); | |
116 | delete pMsg; | |
117 | if (gSystem->AccessPathName(objectFileName)) { | |
118 | cerr << "failed to write input file " << objectFileName << endl; | |
119 | return; | |
120 | } | |
121 | ||
122 | ////////////////////////////////////////////////////////////////////////////////////// | |
123 | // | |
124 | // Reconstruction settings | |
125 | AliReconstruction rec; | |
126 | ||
127 | rec.SetRunReconstruction("HLT ITS TPC"); | |
128 | rec.SetInput(datainput); | |
129 | rec.SetWriteESDfriend(kFALSE); | |
130 | ||
131 | // QA options | |
132 | rec.SetRunQA(":") ; | |
133 | //rec.SetQARefDefaultStorage("local://$ALICE_ROOT/QAref") ; | |
134 | ||
135 | ////////////////////////////////////////////////////////////////////////////////////// | |
136 | // | |
137 | // setup the HLT system | |
138 | AliHLTSystem* pHLT=AliHLTPluginBase::GetInstance(); | |
139 | ||
140 | // define the HLT chain to be run in AliReconstruction | |
141 | // arguments: | |
142 | // 1) id of the configuartion, later used to refer to this configuration | |
143 | // 2) id of the component to run | |
144 | // 3) parents, no parents in this case | |
145 | // 4) optional component arguments | |
146 | TString arguments; | |
147 | arguments.Form("-datatype ROOTTOBJ SMPL -datafile %s", objectFileName.Data()); | |
148 | AliHLTConfiguration publisher("Object-Publisher", "FilePublisher", "", arguments.Data()); | |
149 | ||
150 | // set option for the HLT module in AliReconstruction | |
151 | // arguments | |
152 | // - ignore-hltout : ignore the HLTOUT payload from the HLT DDLs | |
153 | // - libraries to be used as plugins | |
154 | // - loglevel=0x7c : Info, Important, Warning, Error, Fatal | |
155 | // - chains=Object-Publisher : chains to be run | |
156 | rec.SetOption("HLT", | |
157 | "ignore-hltout " | |
158 | "libAliHLTSample.so " | |
159 | "loglevel=0x7c " | |
160 | "chains=Object-Publisher " | |
161 | ); | |
162 | ||
163 | rec.SetRunPlaneEff(kFALSE); | |
164 | ||
165 | // switch off cleanESD | |
166 | rec.SetCleanESD(kFALSE); | |
167 | ||
168 | AliLog::Flush(); | |
169 | rec.Run(); | |
170 | ||
171 | } |