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Implementation of Grid CDB access using the Grid metadata tables.
[u/mrichter/AliRoot.git] / STEER / AliCDBStorage.cxx
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 #include <TKey.h>
17 #include <TH1.h>
18 #include "AliCDBManager.h"
19 #include "AliCDBStorage.h"
20
21 #include "AliCDBEntry.h"
22 #include "AliLog.h"
23
24 ClassImp(AliCDBStorage)
25
26 //_____________________________________________________________________________
27 AliCDBStorage::AliCDBStorage():
28 fValidFileIds(),
29 fRun(-1),
30 fPathFilter(),
31 fVersion(-1),
32 fMetaDataFilter(0),
33 fSelections(),
34 fURI(),
35 fType(),
36 fBaseFolder()
37 {
38 // constructor
39
40         fValidFileIds.SetOwner(1);
41         fSelections.SetOwner(1);
42 }
43
44 //_____________________________________________________________________________
45 AliCDBStorage::~AliCDBStorage() {
46 // destructor
47
48         RemoveAllSelections();
49         fValidFileIds.Clear();
50         delete fMetaDataFilter;
51
52 }
53
54 //_____________________________________________________________________________
55 void AliCDBStorage::GetSelection(/*const*/ AliCDBId* id) {
56 // return required version and subversion from the list of selection criteria
57         
58         TIter iter(&fSelections);
59         AliCDBId* aSelection;
60         
61         // loop on the list of selection criteria
62         while ((aSelection = (AliCDBId*) iter.Next())) {
63                 // check if selection element contains id's path and run (range) 
64                 if (aSelection->Comprises(*id)) {
65                         AliDebug(2,Form("Using selection criterion: %s ", aSelection->ToString().Data()));
66                         // return required version and subversion
67                         
68                         id->SetVersion(aSelection->GetVersion());
69                         id->SetSubVersion(aSelection->GetSubVersion());
70                         return;  
71                 }
72         }
73         
74         // no valid element is found in the list of selection criteria -> return
75         AliDebug(2,"Looking for objects with most recent version");
76         return;
77 }
78
79 //_____________________________________________________________________________
80 void AliCDBStorage::ReadSelectionFromFile(const char *fileName){
81 // read selection criteria list from file
82         
83         RemoveAllSelections();
84         
85         TList *list = GetIdListFromFile(fileName);
86         if(!list) return;
87         
88         list->SetOwner();       
89         Int_t nId = list->GetEntries();
90         AliCDBId *id;
91         TKey *key;
92         
93         for(int i=nId-1;i>=0;i--){
94                 key = (TKey*) list->At(i);
95                 id = (AliCDBId*) key->ReadObj();
96                 if(id) AddSelection(*id);
97         }
98         delete list;
99         AliInfo(Form("Selection criteria list filled with %d entries",fSelections.GetEntries()));
100         PrintSelectionList();
101         
102 }
103
104 //_____________________________________________________________________________
105 void AliCDBStorage::AddSelection(const AliCDBId& selection) {
106 // add a selection criterion
107
108         AliCDBPath path = selection.GetPath();
109         if(!path.IsValid()) return;
110         
111         TIter iter(&fSelections);
112         const AliCDBId *anId;
113         while((anId = (AliCDBId*) iter.Next())){
114                 if(selection.Comprises(*anId)){
115                         AliWarning("This selection is more general than a previous one and will hide it!");
116                         AliWarning(Form("%s", (anId->ToString()).Data()));
117                         fSelections.AddBefore(anId, new AliCDBId(selection));
118                         return;
119                 }
120         
121         }
122         fSelections.AddFirst(new AliCDBId(selection));
123 }
124
125 //_____________________________________________________________________________
126 void AliCDBStorage::AddSelection(const AliCDBPath& path,
127         const AliCDBRunRange& runRange, Int_t version, Int_t subVersion){
128 // add a selection criterion
129
130         AddSelection(AliCDBId(path, runRange, version, subVersion));
131 }
132
133 //_____________________________________________________________________________
134 void AliCDBStorage::AddSelection(const AliCDBPath& path,
135         Int_t firstRun, Int_t lastRun, Int_t version, Int_t subVersion){
136 // add a selection criterion
137         
138         AddSelection(AliCDBId(path, firstRun, lastRun, version, subVersion));
139 }
140
141 //_____________________________________________________________________________
142 void AliCDBStorage::RemoveSelection(const AliCDBId& selection) {
143 // remove a selection criterion
144
145         TIter iter(&fSelections);
146         AliCDBId* aSelection;
147
148         while ((aSelection = (AliCDBId*) iter.Next())) {
149                 if (selection.Comprises(*aSelection)) {
150                         fSelections.Remove(aSelection);
151                 }
152         }
153 }
154
155 //_____________________________________________________________________________
156 void AliCDBStorage::RemoveSelection(const AliCDBPath& path, 
157         const AliCDBRunRange& runRange){
158 // remove a selection criterion
159
160         RemoveSelection(AliCDBId(path, runRange, -1, -1));
161 }
162
163 //_____________________________________________________________________________
164 void AliCDBStorage::RemoveSelection(const AliCDBPath& path,
165         Int_t firstRun, Int_t lastRun){
166 // remove a selection criterion
167
168         RemoveSelection(AliCDBId(path, firstRun, lastRun, -1, -1));
169 }
170
171 //_____________________________________________________________________________
172 void AliCDBStorage::RemoveSelection(int position){
173 // remove a selection criterion from its position in the list
174
175         delete fSelections.RemoveAt(position);
176 }
177
178 //_____________________________________________________________________________
179 void AliCDBStorage::RemoveAllSelections(){
180 // remove all selection criteria
181
182         fSelections.Clear();
183 }
184
185 //_____________________________________________________________________________
186 void AliCDBStorage::PrintSelectionList(){
187 // prints the list of selection criteria
188
189         TIter iter(&fSelections);
190         AliCDBId* aSelection;
191
192         // loop on the list of selection criteria
193         int index=0;
194         while ((aSelection = (AliCDBId*) iter.Next())) {
195                 AliInfo(Form("index %d -> selection: %s",index++, aSelection->ToString().Data()));
196         }
197
198 }
199
200 //_____________________________________________________________________________
201 AliCDBEntry* AliCDBStorage::Get(const AliCDBId& query) {
202 // get an AliCDBEntry object from the database
203         
204         // check if query's path and runRange are valid
205         // query is invalid also if version is not specified and subversion is!
206         if (!query.IsValid()) {
207                 AliError(Form("Invalid query: %s", query.ToString().Data()));
208                 return NULL;
209         }
210
211         // query is not specified if path contains wildcard or runrange = [-1,-1] 
212         if (!query.IsSpecified()) {
213                 AliError(Form("Unspecified query: %s", 
214                                 query.ToString().Data()));
215                 return NULL;
216         }
217
218         // This is needed otherwise TH1  objects (histos, TTree's) are lost when file is closed!
219         Bool_t oldStatus = TH1::AddDirectoryStatus();
220         TH1::AddDirectory(kFALSE);
221
222         AliCDBEntry* entry = GetEntry(query);
223
224         if (oldStatus != kFALSE)
225                 TH1::AddDirectory(kTRUE);
226
227         if (entry) {
228                 // this is to make the SHUTTLE output lighter
229                 if(!(query.GetPath().Contains("SHUTTLE/STATUS")))
230                         AliInfo(Form("CDB object retrieved: %s", entry->GetId().ToString().Data()));
231         } else {
232                 // this is to make the SHUTTLE output lighter
233                 if(!(query.GetPath().Contains("SHUTTLE/STATUS")))
234                         AliInfo(Form("No valid CDB object found! request was: name = <%s>, run = %d",
235                                 (query.GetPath()).Data(), query.GetFirstRun()));
236         }
237
238         // if drain storage is set, drain entry into drain storage
239         if(entry && (AliCDBManager::Instance())->IsDrainSet())
240                 AliCDBManager::Instance()->Drain(entry);
241
242         return entry;
243 }
244
245 //_____________________________________________________________________________
246 AliCDBEntry* AliCDBStorage::Get(const AliCDBPath& path, Int_t runNumber, 
247         Int_t version, Int_t subVersion) {
248 // get an AliCDBEntry object from the database
249
250         return Get(AliCDBId(path, runNumber, runNumber, version, subVersion));
251 }
252
253 //_____________________________________________________________________________
254 AliCDBEntry* AliCDBStorage::Get(const AliCDBPath& path, 
255         const AliCDBRunRange& runRange, Int_t version,
256         Int_t subVersion) {
257 // get an AliCDBEntry object from the database
258
259         return Get(AliCDBId(path, runRange, version, subVersion));
260 }
261
262 //_____________________________________________________________________________
263 TList* AliCDBStorage::GetAll(const AliCDBId& query) {
264 // get multiple AliCDBEntry objects from the database
265
266
267         if (!query.IsValid()) {
268                 AliError(Form("Invalid query: %s", query.ToString().Data()));
269                 return NULL;
270         }
271
272         if (query.IsAnyRange()) {
273                 AliError(Form("Unspecified run or runrange: %s",
274                                 query.ToString().Data()));      
275                 return NULL;
276         }       
277         
278         // This is needed otherwise TH1  objects (histos, TTree's) are lost when file is closed!
279         Bool_t oldStatus = TH1::AddDirectoryStatus();
280         TH1::AddDirectory(kFALSE);
281
282         TList *result = GetEntries(query);
283
284         if (oldStatus != kFALSE)
285                 TH1::AddDirectory(kTRUE);
286
287         Int_t nEntries = result->GetEntries();
288         if (nEntries) {
289                  AliInfo(Form("%d objects retrieved.",nEntries));
290                  for(int i=0; i<nEntries;i++){
291                         AliCDBEntry *entry = (AliCDBEntry*) result->At(i);
292                         AliInfo(Form("%s",entry->GetId().ToString().Data()));
293                  
294                  }
295         } else {
296                  AliInfo(Form("No valid CDB object found! request was: name = <%s>, run = %d, version = %d",
297                         (query.GetPath()).Data(), query.GetFirstRun(), query.GetVersion()));
298         }
299
300         // if drain storage is set, drain entries into drain storage
301         if((AliCDBManager::Instance())->IsDrainSet()){
302                 for(int i = 0; i<result->GetEntries(); i++){
303                         AliCDBEntry* entry = (AliCDBEntry*) result->At(i);
304                         AliCDBManager::Instance()->Drain(entry);
305                 }
306         }
307         
308
309         return result;
310 }
311
312 //_____________________________________________________________________________
313 TList* AliCDBStorage::GetAll(const AliCDBPath& path, Int_t runNumber, 
314         Int_t version, Int_t subVersion) {
315 // get multiple AliCDBEntry objects from the database
316
317         return GetAll(AliCDBId(path, runNumber, runNumber, version,     
318                         subVersion));
319 }
320
321 //_____________________________________________________________________________
322 TList* AliCDBStorage::GetAll(const AliCDBPath& path, 
323         const AliCDBRunRange& runRange, Int_t version, Int_t subVersion) {
324 // get multiple AliCDBEntry objects from the database
325
326         return GetAll(AliCDBId(path, runRange, version, subVersion));
327 }
328
329
330 //_____________________________________________________________________________
331 Bool_t AliCDBStorage::Put(TObject* object, AliCDBId& id, AliCDBMetaData* metaData) {
332 // store an AliCDBEntry object into the database
333         
334         AliCDBEntry anEntry(object, id, metaData);
335
336         return Put(&anEntry);
337
338
339 //_____________________________________________________________________________
340 Bool_t AliCDBStorage::Put(AliCDBEntry* entry) {
341 // store an AliCDBEntry object into the database
342
343         if (!entry){
344                 AliError("No entry!");
345                 return kFALSE;
346         }
347         
348         if (!entry->GetId().IsValid()) {
349                 AliError(Form("Invalid entry ID: %s",
350                         entry->GetId().ToString().Data()));
351                 return kFALSE;
352         }       
353
354         if (!entry->GetId().IsSpecified()) {
355                 AliError(Form("Unspecified entry ID: %s",
356                         entry->GetId().ToString().Data()));
357                 return kFALSE;
358         }
359
360         // set object's class name into metaData!
361         entry->GetMetaData()->SetObjectClassName(entry->GetObject()->ClassName());
362
363         return PutEntry(entry);
364 }
365
366 //_____________________________________________________________________________
367 void AliCDBStorage::QueryCDB(Long64_t run, const char* pathFilter,
368                                 Int_t version, AliCDBMetaData* md){
369 // query CDB for files valid for given run, and fill list fValidFileIds
370 // Actual query is done in virtual function QueryValidFiles()
371
372         fRun = run;
373
374         fPathFilter = pathFilter;
375         if(!fPathFilter.IsValid()) {
376                 AliError(Form("Filter not valid: %s", pathFilter));
377                 fPathFilter = "*";
378                 return;
379         }
380
381         fVersion = version;
382
383         // Clear fValidFileIds list (it cannot be filled twice!
384         AliDebug(2, "Clearing list of CDB Id's previously loaded");
385         fValidFileIds.Clear();
386
387         if(fMetaDataFilter) {delete fMetaDataFilter; fMetaDataFilter=0;}
388         if(md) fMetaDataFilter = dynamic_cast<AliCDBMetaData*> (md->Clone());
389
390         QueryValidFiles();
391
392         AliInfo(Form("%d files valid for run %ld, path %s and version %d found in CDB storage: \n %s://%s",
393                                 fValidFileIds.GetEntries(), (long) fRun, pathFilter, version,
394                                 fType.Data(), fBaseFolder.Data()));
395
396 }
397
398 //_____________________________________________________________________________
399 void AliCDBStorage::PrintQueryCDB(){
400 // print parameters used to load list of CDB Id's (fRun, fPathFilter, fVersion)
401
402         AliInfo(Form("QueryCDB Parameters: \n\tRun = %ld \n\tPath filter = %s \n\tVersion = %d",
403                                 (long) fRun, fPathFilter.GetPath().Data(), fVersion));
404
405         if(fMetaDataFilter) {
406                 AliInfo("CDBMetaData Parameters: ");
407         }
408         fMetaDataFilter->PrintMetaData();
409
410         AliInfo("Id's of valid objects found:");
411         TIter iter(&fValidFileIds);
412         AliCDBId* anId=0;
413
414         // loop on the list of selection criteria
415         while ((anId = dynamic_cast<AliCDBId*>(iter.Next()))) {
416                 AliInfo(Form("%s", anId->ToString().Data()));
417         }
418
419 }
420