Drawing coarse slats and quadrants in the MUONdisplay (Christian, Gines)
[u/mrichter/AliRoot.git] / STEER / AliCDBStorage.cxx
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2c8628dd 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
15
16/* $Id$ */
17
18///////////////////////////////////////////////////////////////////////////////
19// //
20// base class for data base access classes //
21// //
22///////////////////////////////////////////////////////////////////////////////
23
24
25#include <TFile.h>
26#include <TKey.h>
27#include <TROOT.h>
28
29#include "AliLog.h"
fe913d8f 30#include "AliCDBEntry.h"
31#include "AliCDBStorage.h"
2c8628dd 32
33
fe913d8f 34ClassImp(AliCDBStorage)
2c8628dd 35
36
fe913d8f 37AliCDBStorage* AliCDBStorage::fgInstance = NULL;
2c8628dd 38
39
40//_____________________________________________________________________________
fe913d8f 41AliCDBStorage::AliCDBStorage() :
2c8628dd 42 TObject(),
43 fSelection(),
44 fEntries(),
fe913d8f 45 fDumpFile(NULL)
2c8628dd 46{
47// default constructor
2c8628dd 48 if (fgInstance) delete fgInstance;
49 fgInstance = this;
fe913d8f 50 fStorageMode=kDevelopment;
2c8628dd 51}
52
53//_____________________________________________________________________________
fe913d8f 54AliCDBStorage::~AliCDBStorage()
2c8628dd 55{
56// destructor
2c8628dd 57 fSelection.Delete();
58 fEntries.Delete();
fe913d8f 59 if (fDumpFile) {
60 fDumpFile->Close();
61 delete fDumpFile;
2c8628dd 62 }
63 fgInstance = NULL;
64}
65
66//_____________________________________________________________________________
fe913d8f 67AliCDBStorage::AliCDBStorage(const AliCDBStorage& db) :
2c8628dd 68 TObject(db),
69 fSelection(),
70 fEntries(),
fe913d8f 71 fDumpFile(NULL)
2c8628dd 72{
73// copy constructor
74
75 AliFatal("not implemented");
76}
77
78//_____________________________________________________________________________
fe913d8f 79AliCDBStorage& AliCDBStorage::operator = (const AliCDBStorage& /*db*/)
2c8628dd 80{
81// assignment operator
82
83 AliFatal("not implemented");
84 return *this;
85}
86
87
88//_____________________________________________________________________________
fe913d8f 89const TObject* AliCDBStorage::Get(const char* name, Int_t runNumber)
2c8628dd 90{
91// get an object from the data base
fe913d8f 92// (AliCDBStorage is NOT the owner of the returned object)
f05209ee 93// name must be in the form "Detector/DBType/DetSpecType"
94// es: "ZDC/Calib/Pedestals"
2c8628dd 95
fe913d8f 96 AliCDBMetaDataSelect defaultMetaData;
97 AliCDBMetaDataSelect* selectedMetaData = &defaultMetaData;
2c8628dd 98
99 // look for a meta data selection
100 for (Int_t i = 0; i < fSelection.GetEntriesFast(); i++) {
fe913d8f 101 AliCDBMetaDataSelect* selection = (AliCDBMetaDataSelect*) fSelection[i];
2c8628dd 102 if (!selection) continue;
103 if (selection->Matches(name, runNumber)) {
104 selectedMetaData = selection;
105 }
106 }
107
108 // get the entry
fe913d8f 109 AliCDBMetaDataSelect selMetaData(*selectedMetaData);
f05209ee 110 selMetaData.SetName(name);
fe913d8f 111 AliCDBEntry* entry = GetEntry(selMetaData, runNumber);
2c8628dd 112 if (entry) {
113 AliDebug(2, "got the entry:");
114 ToAliDebug(2, entry->Dump());
115 } else {
116 AliDebug(2, Form("got no entry for %s", name));
117 }
118
119 // update array of current entries
f05209ee 120 if (!entry) return NULL;
2c8628dd 121 TObject* oldEntry = fEntries.FindObject(entry->GetName());
122 if (oldEntry) {
123 delete fEntries.Remove(oldEntry);
124 }
125 fEntries.Add(entry);
126
fe913d8f 127 // Dump entry to a file (in the same way as AliCDBDump::PutEntry,
128 // so that the file can be opened as a AliCDBDump!)
f05209ee 129
fe913d8f 130 if (fDumpFile) {
131 fDumpFile->cd();
f05209ee 132 TDirectory* saveDir = gDirectory;
133
134 // go to or create the directory
135 TString strname(name);
136 while (strname.BeginsWith("/")) strname.Remove(0);
fe913d8f 137 TDirectory* dir = fDumpFile;
f05209ee 138 Int_t index = -1;
139 while ((index = strname.Index("/")) >= 0) {
140 TString dirName(strname(0, index));
141 if ((index > 0) && !dir->Get(dirName)) dir->mkdir(dirName);
142 dir->cd(dirName);
143 dir = gDirectory;
144 strname.Remove(0, index+1);
145 }
146
147 entry->Write(strname);
148 if (saveDir) saveDir->cd(); else gROOT->cd();
149
2c8628dd 150 }
f05209ee 151
152 return (entry->GetObject())->Clone();
2c8628dd 153
2c8628dd 154}
155
2c8628dd 156//_____________________________________________________________________________
fe913d8f 157Bool_t AliCDBStorage::Put(const TObject* object,
158 const AliCDBMetaData& metaData)
2c8628dd 159{
160// put an object into the data base
fe913d8f 161// (AliCDBStorage does not adopt the object)
f05209ee 162// location of where the object is stored is defined by
fe913d8f 163// the AliCDBMetaData's name ("Detector/DBType/DetSpecType")
f05209ee 164// and run Range. Storage is handled by the PutEntry method
fe913d8f 165// of the current AliCDBStorage instance.
2c8628dd 166
167 if (!object) return kFALSE;
fe913d8f 168
169 AliCDBEntry *entry= new AliCDBEntry(object, metaData);
170
171 Bool_t result = PutEntry(entry);
172
173 delete entry;
174
175 return result;
2c8628dd 176}
177
178//_____________________________________________________________________________
fe913d8f 179Bool_t AliCDBStorage::PutEntry(AliCDBEntry* entry)
2c8628dd 180{
181// put an object into the data base
fe913d8f 182// Refer to the specific method of the current AliCDBStorage instance
183// (AliCDBDump, AliCDBLocalFile, AliCDBGrid)
2c8628dd 184
185 if (!entry) return kFALSE;
186 AliError(Form("This is a read only data base. "
187 "The object %s was not inserted", entry->GetName()));
188 return kFALSE;
189}
190
191
192//_____________________________________________________________________________
fe913d8f 193void AliCDBStorage::Select(const AliCDBMetaDataSelect& selMetaData)
2c8628dd 194{
195// add some meta data selection criteria
196
fe913d8f 197 fSelection.Add(new AliCDBMetaDataSelect(selMetaData));
2c8628dd 198}
199
200
201//_____________________________________________________________________________
fe913d8f 202Bool_t AliCDBStorage::DumpToFile(const char* fileName)
2c8628dd 203{
fe913d8f 204// Dump entries retrieved from the data base to a file with the given name
2c8628dd 205
fe913d8f 206 if (fDumpFile) {
207 fDumpFile->Close();
208 delete fDumpFile;
2c8628dd 209 }
210
211 TDirectory* dir = gDirectory;
fe913d8f 212 fDumpFile = TFile::Open(fileName, "UPDATE");
2c8628dd 213 if (dir) dir->cd(); else gROOT->cd();
fe913d8f 214 if (!fDumpFile || !fDumpFile->IsOpen()) {
2c8628dd 215 AliError(Form("could not open file %s", fileName));
fe913d8f 216 delete fDumpFile;
217 fDumpFile = NULL;
2c8628dd 218 return kFALSE;
219 }
220 return kTRUE;
221}
222
223
224//_____________________________________________________________________________
fe913d8f 225AliCDBStorage* AliCDBStorage::Instance()
2c8628dd 226{
fe913d8f 227// return the current instance of the DB (AliCDBDump, AliCDBLocalFile...)
228// Example of usage: after creating an istance of AliCDBStorage:
229// AliCDBStorage::Instance()->Get(...)
2c8628dd 230
231 return fgInstance;
232}
f05209ee 233
234
235//_____________________________________________________________________________
fe913d8f 236const AliCDBMetaData& AliCDBStorage::GetCDBMetaData(const char* name)
f05209ee 237{
238// Returns the object's metadata of the already retrieved object
239// (useful, for example, if you want to know the format of the object you have
240// retrieved)
241
fe913d8f 242AliCDBEntry *entry = (AliCDBEntry*) fEntries.FindObject(name);
f05209ee 243 if(!entry){
244 AliError(Form("Entry %s not found! You make me crash!",name));
245 }
fe913d8f 246 return entry->GetCDBMetaData();
f05209ee 247
248}
fe913d8f 249