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fe913d8f 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
fe913d8f 16/////////////////////////////////////////////////////////////////////////////////////////////////
17// //
9e1ceb13 18// AliCDBLocal //
19// access class to a DataBase in a local storage //
fe913d8f 20// //
21/////////////////////////////////////////////////////////////////////////////////////////////////
22
fe913d8f 23#include <TSystem.h>
fe913d8f 24#include <TObjString.h>
25#include <TRegexp.h>
9e1ceb13 26#include <TFile.h>
27#include <TKey.h>
fe913d8f 28
fe913d8f 29#include "AliCDBLocal.h"
9e1ceb13 30#include "AliCDBEntry.h"
31#include "AliLog.h"
fe913d8f 32
33ClassImp(AliCDBLocal)
34
35//_____________________________________________________________________________
9e1ceb13 36AliCDBLocal::AliCDBLocal(const char* baseDir):
37fBaseDirectory(baseDir)
fe913d8f 38{
39// constructor
9e1ceb13 40
41 // check baseDire: trying to cd to baseDir; if it does not exist, create it
42 void* dir = gSystem->OpenDirectory(baseDir);
43 if (dir == NULL) {
44 if (gSystem->mkdir(baseDir, kTRUE)) {
45 AliError(Form("Can't open directory <%s>!", baseDir));
46 }
47
48 } else {
49 AliDebug(2,Form("Folder <%s> found",fBaseDirectory.Data()));
50 gSystem->FreeDirectory(dir);
51 }
fe913d8f 52}
53
54//_____________________________________________________________________________
9e1ceb13 55AliCDBLocal::~AliCDBLocal() {
56// destructor
fe913d8f 57
58}
59
9e1ceb13 60
fe913d8f 61//_____________________________________________________________________________
9e1ceb13 62Bool_t AliCDBLocal::FilenameToId(const char* filename, AliCDBRunRange& runRange,
63// build AliCDBId from filename numbers
64
65 Int_t& version, Int_t& subVersion) {
66
67 Ssiz_t mSize;
fe913d8f 68
9e1ceb13 69 // valid filename: Run#firstRun_#lastRun_v#version_s#subVersion.root
70 TRegexp keyPattern("^Run[0-9]+_[0-9]+_v[0-9]+_s[0-9]+.root$");
71 keyPattern.Index(filename, &mSize);
72 if (!mSize) {
73 AliDebug(2, Form("Bad filename <%s>.", filename));
74 return kFALSE;
75 }
76
77 TString idString(filename);
78 idString.Resize(idString.Length() - sizeof(".root") + 1);
79
80 TObjArray* strArray = (TObjArray*) idString.Tokenize("_");
81
82 TString firstRunString(((TObjString*) strArray->At(0))->GetString());
83 runRange.SetFirstRun(atoi(firstRunString.Data() + 3));
84 runRange.SetLastRun(atoi(((TObjString*) strArray->At(1))->GetString()));
85
86 TString verString(((TObjString*) strArray->At(2))->GetString());
87 version = atoi(verString.Data() + 1);
88
89 TString subVerString(((TObjString*) strArray->At(3))->GetString());
90 subVersion = atoi(subVerString.Data() + 1);
91
92 delete strArray;
93
94 return kTRUE;
fe913d8f 95}
96
9e1ceb13 97
fe913d8f 98//_____________________________________________________________________________
9e1ceb13 99Bool_t AliCDBLocal::IdToFilename(const AliCDBRunRange& runRange, Int_t version,
100 Int_t subVersion, TString& filename) {
101// build file name from AliCDBId data (run range, version, subVersion)
102
103 if (!runRange.IsValid()) {
104 AliWarning(Form("Invalid run range <%d, %d>.",
105 runRange.GetFirstRun(), runRange.GetLastRun()));
106 return kFALSE;
107 }
108
109 if (version < 0) {
110 AliWarning(Form("Invalid version <%d>.", version));
111 return kFALSE;
112 }
fe913d8f 113
9e1ceb13 114 if (subVersion < 0) {
115 AliWarning(Form("Invalid subversion <%s>.", subVersion));
116 return kFALSE;
117 }
118
119 filename += "Run";
120 filename += runRange.GetFirstRun();
121 filename += "_";
122 filename += runRange.GetLastRun();
123 filename += "_v";
124 filename += version;
125 filename += "_s";
126 filename += subVersion;
127 filename += ".root";
128
129 return kTRUE;
fe913d8f 130}
131
132//_____________________________________________________________________________
9e1ceb13 133Bool_t AliCDBLocal::PrepareId(AliCDBId& id) {
134// prepare id (version, subVersion) of the object that will be stored (called by PutEntry)
135
136 TString dirName;
137 dirName += fBaseDirectory;
138 dirName += '/';
139 dirName += id.GetPath();
140
141 // go to the path; if directory does not exist, create it
142 void* dirPtr = gSystem->OpenDirectory(dirName);
143 if (!dirPtr) {
144 gSystem->mkdir(dirName, kTRUE);
145 dirPtr = gSystem->OpenDirectory(dirName);
146
147 if (!dirPtr) {
148 AliError(Form("Can't create directory <%s>!",
149 dirName.Data()));
150 return kFALSE;
151 }
152 }
fe913d8f 153
9e1ceb13 154 const char* filename;
155 AliCDBRunRange aRunRange; // the runRange got from filename
156 AliCDBRunRange lastRunRange(-1,-1); // highest runRange found
157 Int_t aVersion, aSubVersion; // the version subVersion got from filename
158 Int_t lastVersion = 0, lastSubVersion = -1; // highest version and subVersion found
159
160 if (!id.HasVersion()) { // version not specified: look for highest version & subVersion
161
162 while ((filename = gSystem->GetDirEntry(dirPtr))) { // loop on the files
163
164 TString aString(filename);
165 if (aString == "." || aString == "..") continue;
166
167 if (!FilenameToId(filename, aRunRange, aVersion,
168 aSubVersion)) {
169 AliWarning(Form(
170 "Bad filename <%s>! I'll skip it.",
171 filename));
172 continue;
173 }
174
175 if (!aRunRange.Overlaps(id.GetAliCDBRunRange())) continue;
176 if(aVersion < lastVersion) continue;
177 if(aVersion > lastVersion) lastSubVersion = -1;
178 if(aSubVersion < lastSubVersion) continue;
179 lastVersion = aVersion;
180 lastSubVersion = aSubVersion;
181 lastRunRange = aRunRange;
182 }
183
184 id.SetVersion(lastVersion);
185 id.SetSubVersion(lastSubVersion + 1);
186
187 } else { // version specified, look for highest subVersion only
188
189 while ((filename = gSystem->GetDirEntry(dirPtr))) { // loop on the files
190
191 TString aString(filename);
192 if (aString == "." || aString == "..") {
193 continue;
194 }
195
196 if (!FilenameToId(filename, aRunRange, aVersion,
197 aSubVersion)) {
198 AliWarning(Form(
199 "Bad filename <%s>!I'll skip it.",
200 filename));
201 continue;
202 }
203
204 if (aRunRange.Overlaps(id.GetAliCDBRunRange())
205 && aVersion == id.GetVersion()
206 && aSubVersion > lastSubVersion) {
207 lastSubVersion = aSubVersion;
208 lastRunRange = aRunRange;
209 }
210
211 }
212
213 id.SetSubVersion(lastSubVersion + 1);
214 }
fe913d8f 215
9e1ceb13 216 gSystem->FreeDirectory(dirPtr);
fe913d8f 217
9e1ceb13 218 TString lastStorage = id.GetLastStorage();
219 if(lastStorage.Contains(TString("grid"), TString::kIgnoreCase) &&
220 id.GetSubVersion() > 0 ){
221 AliError(Form("Grid to Local Storage error! local object with version v%d_s%d found:",id.GetVersion(), id.GetSubVersion()-1));
222 AliError(Form("This object has been already transferred from Grid (check v%d_s0)!",id.GetVersion()));
223 return kFALSE;
224 }
225
226 if(lastStorage.Contains(TString("new"), TString::kIgnoreCase) &&
227 id.GetSubVersion() > 0 ){
228 AliWarning(Form("*** WARNING! a NEW object is being stored with version v%d_s%d",
229 id.GetVersion(),id.GetSubVersion()));
230 AliWarning(Form("and it will hide previously stored object with v%d_s%d!",
231 id.GetVersion(),id.GetSubVersion()-1));
232 }
233
234 if(!lastRunRange.IsAnyRange() && !(lastRunRange.IsEqual(& id.GetAliCDBRunRange())))
235 AliWarning(Form("Run range modified w.r.t. previous version (Run%d_%d_v%d_s%d)",
236 lastRunRange.GetFirstRun(), lastRunRange.GetLastRun(),
237 id.GetVersion(), id.GetSubVersion()-1));
238
239 return kTRUE;
fe913d8f 240}
241
9e1ceb13 242//_____________________________________________________________________________
243AliCDBId AliCDBLocal::GetId(const AliCDBId& query) {
244// look for filename matching query (called by GetEntry)
245
246 AliCDBId result(query.GetAliCDBPath(), -1, -1, -1, -1);
247
248 TString dirName;
249 dirName += fBaseDirectory;
250 dirName += '/';
251 dirName += query.GetPath(); // dirName = fDBPath/idPath
252
253 void* dirPtr = gSystem->OpenDirectory(dirName);
254 if (!dirPtr) {
255 AliError(Form("Directory <%s> not found", (query.GetPath()).Data()));
256 AliError(Form("in DB folder %s", fBaseDirectory.Data()));
257 return result;
258 }
259
260 const char* filename;
261
262 AliCDBRunRange aRunRange; // the runRange got from filename
263 Int_t aVersion, aSubVersion; // the version and subVersion got from filename
264
265 if (!query.HasVersion()) { // neither version and subversion specified -> look for highest version and subVersion
266
267 while ((filename = gSystem->GetDirEntry(dirPtr))) { // loop on files
268
269 TString aString(filename);
270 if (aString == "." || aString == "..") continue;
271
272 if (!FilenameToId(filename, aRunRange, aVersion, aSubVersion)) continue;
273 // aRunRange, aVersion, aSubVersion filled from filename
274
275 if (!aRunRange.Comprises(query.GetAliCDBRunRange())) continue;
276 // aRunRange contains requested run!
277
278 if (result.GetVersion() < aVersion) {
279 result.SetVersion(aVersion);
280 result.SetSubVersion(aSubVersion);
281
282 result.SetFirstRun(
283 aRunRange.GetFirstRun());
284 result.SetLastRun(
285 aRunRange.GetLastRun());
286
287 } else if (result.GetVersion() == aVersion
288 && result.GetSubVersion()
289 < aSubVersion) {
290
291 result.SetSubVersion(aSubVersion);
292
293 result.SetFirstRun(
294 aRunRange.GetFirstRun());
295 result.SetLastRun(
296 aRunRange.GetLastRun());
297 } else if (result.GetVersion() == aVersion
298 && result.GetSubVersion() == aSubVersion){
299 AliError(Form("More than one object valid for run %d, version %d_%d!",
300 query.GetFirstRun(), aVersion, aSubVersion));
301 result.SetRunRange(-1,-1); result.SetVersion(-1); result.SetSubVersion(-1);
302 return result;
303 }
304 }
305
306 } else if (!query.HasSubVersion()) { // version specified but not subversion -> look for highest subVersion
307
308 result.SetVersion(query.GetVersion());
309
310 while ((filename = gSystem->GetDirEntry(dirPtr))) { // loop on files
311
312 TString aString(filename);
313 if (aString == "." || aString == "..") continue;
314
315 if (!FilenameToId(filename, aRunRange, aVersion, aSubVersion)) continue;
316 // aRunRange, aVersion, aSubVersion filled from filename
317
318 if (!aRunRange.Comprises(query.GetAliCDBRunRange())) continue;
319 // aRunRange contains requested run!
320
321 if(query.GetVersion() != aVersion) continue;
322 // aVersion is requested version!
323
324 if(result.GetSubVersion() == aSubVersion){
325 AliError(Form("More than one object valid for run %d, version %d_%d!",
326 query.GetFirstRun(), aVersion, aSubVersion));
327 result.SetRunRange(-1,-1); result.SetVersion(-1); result.SetSubVersion(-1);
328 return result;
329 }
330 if( result.GetSubVersion() < aSubVersion) {
331
332 result.SetSubVersion(aSubVersion);
333
334 result.SetFirstRun(
335 aRunRange.GetFirstRun());
336 result.SetLastRun(
337 aRunRange.GetLastRun());
338 }
339 }
340
341 } else { // both version and subversion specified
342
343 while ((filename = gSystem->GetDirEntry(dirPtr))) { // loop on files
344
345 TString aString(filename);
346 if (aString == "." || aString == "..") continue;
347
348 if (!FilenameToId(filename, aRunRange, aVersion, aSubVersion)) continue;
349 // aRunRange, aVersion, aSubVersion filled from filename
350
351 if (!aRunRange.Comprises(query.GetAliCDBRunRange())) continue;
352 // aRunRange contains requested run!
353
354 if(query.GetVersion() != aVersion || query.GetSubVersion() != aSubVersion) continue;
355 // aVersion and aSubVersion are requested version and subVersion!
356
357 if(result.GetVersion() == aVersion && result.GetSubVersion() == aSubVersion){
358 AliError(Form("More than one object valid for run %d, version %d_%d!",
359 query.GetFirstRun(), aVersion, aSubVersion));
360 result.SetRunRange(-1,-1); result.SetVersion(-1); result.SetSubVersion(-1);
361 return result;
362 }
363 result.SetVersion(aVersion);
364 result.SetSubVersion(aSubVersion);
365 result.SetFirstRun(aRunRange.GetFirstRun());
366 result.SetLastRun(aRunRange.GetLastRun());
367
368 }
369 }
370
371 gSystem->FreeDirectory(dirPtr);
372
373 return result;
374}
fe913d8f 375
376//_____________________________________________________________________________
9e1ceb13 377AliCDBEntry* AliCDBLocal::GetEntry(const AliCDBId& queryId) {
378// get AliCDBEntry from the database
379
380 AliCDBId dataId;
381
382 // look for a filename matching query requests (path, runRange, version, subVersion)
383 if (!queryId.HasVersion()) {
384 // if version is not specified, first check the selection criteria list
385 dataId = GetId(GetSelection(queryId));
386 } else {
387 dataId = GetId(queryId);
fe913d8f 388 }
9e1ceb13 389
390 if (!dataId.IsSpecified()) return NULL;
391
392 TString filename;
393 if (!IdToFilename(dataId.GetAliCDBRunRange(), dataId.GetVersion(),
394 dataId.GetSubVersion(), filename)) {
395
396 AliError("Bad data ID encountered! Subnormal error!");
397 return NULL;
398 }
399
400 filename.Prepend((fBaseDirectory +'/' + queryId.GetPath() + '/'));
401
402 TFile file(filename, "READ"); // open file
403 if (!file.IsOpen()) {
404 AliError(Form("Can't open file <%s>!", filename.Data()));
405 return NULL;
406 }
407
408 // get the only AliCDBEntry object from the file
409 // the object in the file is an AliCDBEntry entry named "AliCDBEntry"
410
411 TObject* anObject = file.Get("AliCDBEntry");
412 if (!anObject) {
413 AliError("Bad storage data: NULL entry object!");
414 return NULL;
415 }
416
417 if (AliCDBEntry::Class() != anObject->IsA()) {
418 AliError("Bad storage data: Invalid entry object!");
419 return NULL;
420 }
421
422 AliCDBId entryId = ((AliCDBEntry* ) anObject)->GetId();
fe913d8f 423
9e1ceb13 424 // The object's Id are not reset during storage
425 // If object's Id runRange or version do not match with filename,
426 // it means that someone renamed file by hand. In this case a warning msg is issued.
427
428 ((AliCDBEntry*) anObject)-> SetLastStorage("local");
fe913d8f 429
9e1ceb13 430 if(!((entryId.GetAliCDBRunRange()).IsEqual(& dataId.GetAliCDBRunRange())) ||
431 (entryId.GetVersion() != dataId.GetVersion()) || (entryId.GetSubVersion() != dataId.GetSubVersion())){
432 AliWarning(Form("Either object Id's RunRange or version do noth match with file name:"));
433 AliWarning("someone renamed file by hand!");
434 }
435
436 // close file, return retieved entry
437 file.Close();
438 return (AliCDBEntry*) anObject;
439}
fe913d8f 440
9e1ceb13 441//_____________________________________________________________________________
442void AliCDBLocal::GetEntriesForLevel0(const char* level0,
443 const AliCDBId& queryId, TList* result) {
444// multiple request (AliCDBStorage::GetAll)
445
446 TString level0Dir;
447 level0Dir += fBaseDirectory;
448 level0Dir += '/';
449 level0Dir += level0;
450
451 void* level0DirPtr = gSystem->OpenDirectory(level0Dir);
452 if (!level0DirPtr) {
453 AliError(Form("Can't open level0 directory <%s>!",
454 level0Dir.Data()));
455 return;
456 }
457
458 const char* level1;
459 while ((level1 = gSystem->GetDirEntry(level0DirPtr))) {
460
461 TString level1Str(level1);
462 if (level1Str == "." || level1Str == "..") {
463 continue;
464 }
465
466 if (queryId.GetAliCDBPath().Level1Comprises(level1)) {
467 GetEntriesForLevel1(level0, level1, queryId, result);
468 }
469 }
fe913d8f 470
9e1ceb13 471 gSystem->FreeDirectory(level0DirPtr);
fe913d8f 472}
473
9e1ceb13 474//_____________________________________________________________________________
475void AliCDBLocal::GetEntriesForLevel1(const char* level0, const char* level1,
476 const AliCDBId& queryId, TList* result) {
477// multiple request (AliCDBStorage::GetAll)
478
479 TString level1Dir;
480 level1Dir += fBaseDirectory;
481 level1Dir += '/';
482 level1Dir += level0;
483 level1Dir += '/';
484 level1Dir += level1;
485
486 void* level1DirPtr = gSystem->OpenDirectory(level1Dir);
487 if (!level1DirPtr) {
488 AliError(Form("Can't open level1 directory <%s>!",
489 level1Dir.Data()));
490 return;
491 }
fe913d8f 492
9e1ceb13 493 const char* level2;
494 while ((level2 = gSystem->GetDirEntry(level1DirPtr))) {
495
496 TString level2Str(level2);
497 if (level2Str == "." || level2Str == "..") {
498 continue;
499 }
500
501 if (queryId.GetAliCDBPath().Level2Comprises(level2)) {
502
503 AliCDBPath entryPath(level0, level1, level2);
504 AliCDBId entryId(entryPath, queryId.GetAliCDBRunRange(),
505 queryId.GetVersion(), queryId.GetSubVersion());
506
507 AliCDBEntry* anEntry = GetEntry(entryId);
508 if (anEntry) {
509 result->Add(anEntry);
510 }
511 }
512 }
fe913d8f 513
9e1ceb13 514 gSystem->FreeDirectory(level1DirPtr);
515}
fe913d8f 516
9e1ceb13 517//_____________________________________________________________________________
518TList* AliCDBLocal::GetEntries(const AliCDBId& queryId) {
519// multiple request (AliCDBStorage::GetAll)
520
521 void* storageDirPtr = gSystem->OpenDirectory(fBaseDirectory);
522 if (!storageDirPtr) {
523 AliError(Form("Can't open storage directory <%s>",
524 fBaseDirectory.Data()));
525 return NULL;
526 }
527
528 TList* result = new TList();
529 result->SetOwner();
530
531 const char* level0;
532 while ((level0 = gSystem->GetDirEntry(storageDirPtr))) {
533
534 TString level0Str(level0);
535 if (level0Str == "." || level0Str == "..") {
536 continue;
537 }
538
539 if (queryId.GetAliCDBPath().Level0Comprises(level0)) {
540 GetEntriesForLevel0(level0, queryId, result);
541 }
542 }
543
544 gSystem->FreeDirectory(storageDirPtr);
545
546 return result;
fe913d8f 547}
548
549//_____________________________________________________________________________
9e1ceb13 550Bool_t AliCDBLocal::PutEntry(AliCDBEntry* entry) {
551// put an AliCDBEntry object into the database
552
553 AliCDBId& id = entry->GetId();
554
555 // set version and subVersion for the entry to be stored
556 if (!PrepareId(id)) return kFALSE;
557
558
559 // build filename from entry's id
560 TString filename;
561 if (!IdToFilename(id.GetAliCDBRunRange(), id.GetVersion(),
562 id.GetSubVersion(), filename)) {
563
564 AliError("Bad ID encountered! Subnormal error!");
565 return kFALSE;
566 }
567
568 filename.Prepend(fBaseDirectory +'/' + id.GetPath() + '/');
569
570 // open file
571 TFile file(filename, "CREATE");
572 if (!file.IsOpen()) {
573 AliError(Form("Can't open file <%s>!", filename.Data()));
574 return kFALSE;
575 }
576
577 entry->SetVersion(id.GetVersion());
578 entry->SetSubVersion(id.GetSubVersion());
579
580 // write object (key name: "AliCDBEntry")
581 Bool_t result = file.WriteTObject(entry, "AliCDBEntry");
582 if (!result) AliError(Form("Can't write entry to file: %s", filename.Data()));
583
584 file.Close();
585 if(result) AliInfo(Form("AliCDBEntry stored into file %s",filename.Data()));
586
587 return result;
fe913d8f 588}
589
9e1ceb13 590/////////////////////////////////////////////////////////////////////////////////////////////////
591// //
592// AliCDBLocal factory //
593// //
594/////////////////////////////////////////////////////////////////////////////////////////////////
595
596ClassImp(AliCDBLocalFactory)
597
598//_____________________________________________________________________________
599Bool_t AliCDBLocalFactory::Validate(const char* dbString) {
600// check if the string is valid local URI
601
602 TRegexp dbPattern("^local://.+$");
603
604 return TString(dbString).Contains(dbPattern);
fe913d8f 605}
606
9e1ceb13 607//_____________________________________________________________________________
608AliCDBParam* AliCDBLocalFactory::CreateParameter(const char* dbString) {
609// create AliCDBLocalParam class from the URI string
610
611 if (!Validate(dbString)) {
612 return NULL;
613 }
614
615 TString pathname(dbString + sizeof("local://") - 1);
616
617 gSystem->ExpandPathName(pathname);
618
619 if (pathname[0] != '/') {
620 pathname.Prepend(TString(gSystem->WorkingDirectory()) + '/');
621 }
622
623 AliInfo(pathname);
624
625 return new AliCDBLocalParam(pathname);
fe913d8f 626}
627
9e1ceb13 628//_____________________________________________________________________________
629AliCDBStorage* AliCDBLocalFactory::Create(const AliCDBParam* param) {
630// create AliCDBLocal storage instance from parameters
631
632 if (AliCDBLocalParam::Class() == param->IsA()) {
633
634 const AliCDBLocalParam* localParam =
635 (const AliCDBLocalParam*) param;
636
637 return new AliCDBLocal(localParam->GetPath());
638 }
fe913d8f 639
9e1ceb13 640 return NULL;
fe913d8f 641}
642
9e1ceb13 643/////////////////////////////////////////////////////////////////////////////////////////////////
644// //
645// AliCDBLocal Parameter class // //
646// //
647/////////////////////////////////////////////////////////////////////////////////////////////////
648
649ClassImp(AliCDBLocalParam)
650
fe913d8f 651//_____________________________________________________________________________
9e1ceb13 652AliCDBLocalParam::AliCDBLocalParam() {
653// default constructor
fe913d8f 654
fe913d8f 655}
656
9e1ceb13 657//_____________________________________________________________________________
658AliCDBLocalParam::AliCDBLocalParam(const char* dbPath):
659fDBPath(dbPath)
660{
661// constructor
662
663 SetType("local");
664 SetURI(TString("local://") + dbPath);
665}
666
667//_____________________________________________________________________________
668AliCDBLocalParam::~AliCDBLocalParam() {
669// destructor
670
671}
fe913d8f 672
673//_____________________________________________________________________________
9e1ceb13 674AliCDBParam* AliCDBLocalParam::CloneParam() const {
675// clone parameter
676
677 return new AliCDBLocalParam(fDBPath);
fe913d8f 678}
fe913d8f 679
9e1ceb13 680//_____________________________________________________________________________
681ULong_t AliCDBLocalParam::Hash() const {
682// return Hash function
683
684 return fDBPath.Hash();
fe913d8f 685}
9e1ceb13 686
687//_____________________________________________________________________________
688Bool_t AliCDBLocalParam::IsEqual(const TObject* obj) const {
689// check if this object is equal to AliCDBParam obj
690
691 if (this == obj) {
692 return kTRUE;
693 }
694
695 if (AliCDBLocalParam::Class() != obj->IsA()) {
696 return kFALSE;
697 }
698
699 AliCDBLocalParam* other = (AliCDBLocalParam*) obj;
700
701 return fDBPath == other->fDBPath;
702}
703