STEER/AliCDBLocal.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 /////////////////////////////////////////////////////////////////////////////////////////////////
  17 //                                                                                             //
  18 // AliCDBLocal                                                                                 //
  19 // access class to a DataBase in a local storage                                               //
  20 //                                                                                             //
  21 /////////////////////////////////////////////////////////////////////////////////////////////////
  22
  23 #include <TSystem.h>
  24 #include <TObjString.h>
  25 #include <TRegexp.h>
  26 #include <TFile.h>
  27 #include <TKey.h>
  28
  29 #include "AliCDBLocal.h"
  30 #include "AliCDBEntry.h"
  31 #include "AliLog.h"
  32
  33 ClassImp(AliCDBLocal)
  34
  35 //_____________________________________________________________________________
  36 AliCDBLocal::AliCDBLocal(const char* baseDir):
  37 fBaseDirectory(baseDir)
  38 {
  39 // constructor
  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         }
  52         fType="local";
  53         fBaseFolder = fBaseDirectory;
  54 }
  55
  56 //_____________________________________________________________________________
  57 AliCDBLocal::~AliCDBLocal() {
  58 // destructor
  59
  60 }
  61
  62
  63 //_____________________________________________________________________________
  64 Bool_t AliCDBLocal::FilenameToId(const char* filename, AliCDBRunRange& runRange,
  65         Int_t& version, Int_t& subVersion) {
  66 // build AliCDBId from filename numbers
  67
  68
  69         Ssiz_t mSize;
  70
  71         // valid filename: Run#firstRun_#lastRun_v#version_s#subVersion.root
  72         TRegexp keyPattern("^Run[0-9]+_[0-9]+_v[0-9]+_s[0-9]+.root$");
  73         keyPattern.Index(filename, &mSize);
  74         if (!mSize) {
  75                 AliDebug(2, Form("Bad filename <%s>.", filename));
  76                 return kFALSE;
  77         }
  78
  79         TString idString(filename);
  80         idString.Resize(idString.Length() - sizeof(".root") + 1);
  81
  82         TObjArray* strArray = (TObjArray*) idString.Tokenize("_");
  83
  84         TString firstRunString(((TObjString*) strArray->At(0))->GetString());
  85         runRange.SetFirstRun(atoi(firstRunString.Data() + 3));
  86         runRange.SetLastRun(atoi(((TObjString*) strArray->At(1))->GetString()));
  87
  88         TString verString(((TObjString*) strArray->At(2))->GetString());
  89         version = atoi(verString.Data() + 1);
  90
  91         TString subVerString(((TObjString*) strArray->At(3))->GetString());
  92         subVersion = atoi(subVerString.Data() + 1);
  93
  94         delete strArray;
  95
  96         return kTRUE;
  97 }
  98
  99
 100 //_____________________________________________________________________________
 101 Bool_t AliCDBLocal::IdToFilename(const AliCDBRunRange& runRange, Int_t version,
 102         Int_t subVersion, TString& filename) {
 103 // build file name from AliCDBId data (run range, version, subVersion)
 104
 105         if (!runRange.IsValid()) {
 106                 AliDebug(2,Form("Invalid run range <%d, %d>.",
 107                         runRange.GetFirstRun(), runRange.GetLastRun()));
 108                 return kFALSE;
 109         }
 110
 111         if (version < 0) {
 112                 AliDebug(2,Form("Invalid version <%d>.", version));
 113                 return kFALSE;
 114         }
 115
 116         if (subVersion < 0) {
 117                 AliDebug(2,Form("Invalid subversion <%s>.", subVersion));
 118                 return kFALSE;
 119         }
 120
 121         filename += "Run";
 122         filename += runRange.GetFirstRun();
 123         filename += "_";
 124         filename += runRange.GetLastRun();
 125         filename += "_v";
 126         filename += version;
 127         filename += "_s";
 128         filename += subVersion;
 129         filename += ".root";
 130
 131         return kTRUE;
 132 }
 133
 134 //_____________________________________________________________________________
 135 Bool_t AliCDBLocal::PrepareId(AliCDBId& id) {
 136 // prepare id (version, subVersion) of the object that will be stored (called by PutEntry)
 137
 138         TString dirName;
 139         dirName += fBaseDirectory;
 140         dirName += '/';
 141         dirName += id.GetPath();
 142
 143         // go to the path; if directory does not exist, create it
 144         void* dirPtr = gSystem->OpenDirectory(dirName);
 145         if (!dirPtr) {
 146                 gSystem->mkdir(dirName, kTRUE);
 147                 dirPtr = gSystem->OpenDirectory(dirName);
 148
 149                 if (!dirPtr) {
 150                         AliError(Form("Can't create directory <%s>!",
 151                                         dirName.Data()));
 152                         return kFALSE;
 153                 }
 154         }
 155
 156         const char* filename;
 157         AliCDBRunRange aRunRange; // the runRange got from filename
 158         AliCDBRunRange lastRunRange(-1,-1); // highest runRange found
 159         Int_t aVersion, aSubVersion; // the version subVersion got from filename
 160         Int_t lastVersion = 0, lastSubVersion = -1; // highest version and subVersion found
 161
 162         if (!id.HasVersion()) { // version not specified: look for highest version & subVersion
 163
 164                 while ((filename = gSystem->GetDirEntry(dirPtr))) { // loop on the files
 165
 166                         TString aString(filename);
 167                         if (aString == "." || aString == "..") continue;
 168
 169                         if (!FilenameToId(filename, aRunRange, aVersion,
 170                                 aSubVersion)) {
 171                                 AliDebug(2,Form(
 172                                         "Bad filename <%s>! I'll skip it.",
 173                                         filename));
 174                                 continue;
 175                         }
 176
 177                         if (!aRunRange.Overlaps(id.GetAliCDBRunRange())) continue;
 178                         if(aVersion < lastVersion) continue;
 179                         if(aVersion > lastVersion) lastSubVersion = -1;
 180                         if(aSubVersion < lastSubVersion) continue;
 181                         lastVersion = aVersion;
 182                         lastSubVersion = aSubVersion;
 183                         lastRunRange = aRunRange;
 184                 }
 185
 186                 id.SetVersion(lastVersion);
 187                 id.SetSubVersion(lastSubVersion + 1);
 188
 189         } else { // version specified, look for highest subVersion only
 190
 191                 while ((filename = gSystem->GetDirEntry(dirPtr))) { // loop on the files
 192
 193                         TString aString(filename);
 194                         if (aString == "." || aString == "..") {
 195                                 continue;
 196                         }
 197
 198                         if (!FilenameToId(filename, aRunRange, aVersion,
 199                                 aSubVersion)) {
 200                                 AliDebug(2,Form(
 201                                         "Bad filename <%s>!I'll skip it.",
 202                                         filename));
 203                                 continue;
 204                         }
 205
 206                         if (aRunRange.Overlaps(id.GetAliCDBRunRange())
 207                                 && aVersion == id.GetVersion()
 208                                 && aSubVersion > lastSubVersion) {
 209                                 lastSubVersion = aSubVersion;
 210                                 lastRunRange = aRunRange;
 211                         }
 212
 213                 }
 214
 215                 id.SetSubVersion(lastSubVersion + 1);
 216         }
 217
 218         gSystem->FreeDirectory(dirPtr);
 219
 220         TString lastStorage = id.GetLastStorage();
 221         if(lastStorage.Contains(TString("grid"), TString::kIgnoreCase) &&
 222            id.GetSubVersion() > 0 ){
 223                 AliError(Form("Grid to Local Storage error! local object with version v%d_s%d found:",id.GetVersion(), id.GetSubVersion()-1));
 224                 AliError(Form("This object has been already transferred from Grid (check v%d_s0)!",id.GetVersion()));
 225                 return kFALSE;
 226         }
 227
 228         if(lastStorage.Contains(TString("new"), TString::kIgnoreCase) &&
 229            id.GetSubVersion() > 0 ){
 230                 AliDebug(2, Form("A NEW object is being stored with version v%d_s%d",
 231                                         id.GetVersion(),id.GetSubVersion()));
 232                 AliDebug(2, Form("and it will hide previously stored object with v%d_s%d!",
 233                                         id.GetVersion(),id.GetSubVersion()-1));
 234         }
 235
 236         if(!lastRunRange.IsAnyRange() && !(lastRunRange.IsEqual(& id.GetAliCDBRunRange())))
 237                 AliWarning(Form("Run range modified w.r.t. previous version (Run%d_%d_v%d_s%d)",
 238                         lastRunRange.GetFirstRun(), lastRunRange.GetLastRun(),
 239                         id.GetVersion(), id.GetSubVersion()-1));
 240
 241         return kTRUE;
 242 }
 243
 244 //_____________________________________________________________________________
 245 Bool_t AliCDBLocal::GetId(const AliCDBId& query, AliCDBId& result) {
 246 // look for filename matching query (called by GetEntry)
 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                 AliDebug(2,Form("Directory <%s> not found", (query.GetPath()).Data()));
 256                 AliDebug(2,Form("in DB folder %s", fBaseDirectory.Data()));
 257                 return kFALSE;
 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                                 AliDebug(2,Form("More than one object valid for run %d, version %d_%d!",
 300                                         query.GetFirstRun(), aVersion, aSubVersion));
 301                                 gSystem->FreeDirectory(dirPtr);
 302                                 return kFALSE;
 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                                 AliDebug(2,Form("More than one object valid for run %d, version %d_%d!",
 326                                         query.GetFirstRun(), aVersion, aSubVersion));
 327                                 gSystem->FreeDirectory(dirPtr);
 328                                 return kFALSE;
 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                                 AliDebug(2,Form("More than one object valid for run %d, version %d_%d!",
 359                                         query.GetFirstRun(), aVersion, aSubVersion));
 360                                 gSystem->FreeDirectory(dirPtr);
 361                                 return kFALSE;
 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 kTRUE;
 374 }
 375
 376 //_____________________________________________________________________________
 377 AliCDBEntry* AliCDBLocal::GetEntry(const AliCDBId& queryId) {
 378 // get AliCDBEntry from the database
 379
 380         AliCDBId dataId(queryId.GetAliCDBPath(), -1, -1, -1, -1);
 381         Bool_t result;
 382
 383         // look for a filename matching query requests (path, runRange, version, subVersion)
 384         if (!queryId.HasVersion()) {
 385                 // if version is not specified, first check the selection criteria list
 386                 AliCDBId selectedId(queryId);
 387                 GetSelection(&selectedId);
 388                 result = GetId(selectedId, dataId);
 389         } else {
 390                 result = GetId(queryId, dataId);
 391         }
 392
 393         if (!result || !dataId.IsSpecified()) return NULL;
 394
 395         TString filename;
 396         if (!IdToFilename(dataId.GetAliCDBRunRange(), dataId.GetVersion(),
 397                  dataId.GetSubVersion(), filename)) {
 398
 399                 AliDebug(2,Form("Bad data ID encountered! Subnormal error!"));
 400                 return NULL;
 401         }
 402
 403         filename.Prepend((fBaseDirectory +'/' + queryId.GetPath() + '/'));
 404
 405         TFile file(filename, "READ"); // open file
 406         if (!file.IsOpen()) {
 407                 AliDebug(2,Form("Can't open file <%s>!", filename.Data()));
 408                 return NULL;
 409         }
 410
 411         // get the only AliCDBEntry object from the file
 412         // the object in the file is an AliCDBEntry entry named "AliCDBEntry"
 413
 414         AliCDBEntry* anEntry = dynamic_cast<AliCDBEntry*> (file.Get("AliCDBEntry"));
 415         if (!anEntry) {
 416                 AliDebug(2,Form("Bad storage data: No AliCDBEntry in file!"));
 417                 file.Close();
 418                 return NULL;
 419         }
 420
 421         AliCDBId entryId = anEntry->GetId();
 422
 423         // The object's Id are not reset during storage
 424         // If object's Id runRange or version do not match with filename,
 425         // it means that someone renamed file by hand. In this case a warning msg is issued.
 426
 427         anEntry-> SetLastStorage("local");
 428
 429         if(!((entryId.GetAliCDBRunRange()).IsEqual(& dataId.GetAliCDBRunRange())) ||
 430                 (entryId.GetVersion() != dataId.GetVersion()) || (entryId.GetSubVersion() != dataId.GetSubVersion())){
 431                 AliWarning(Form("Either object Id's RunRange or version do noth match with file name:"));
 432                 AliWarning("someone renamed file by hand!");
 433         }
 434
 435         // close file, return retieved entry
 436         file.Close();
 437         return anEntry;
 438 }
 439
 440 //_____________________________________________________________________________
 441 void AliCDBLocal::GetEntriesForLevel0(const char* level0,
 442         const AliCDBId& queryId, TList* result) {
 443 // multiple request (AliCDBStorage::GetAll)
 444
 445         TString level0Dir;
 446         level0Dir += fBaseDirectory;
 447         level0Dir += '/';
 448         level0Dir += level0;
 449
 450         void* level0DirPtr = gSystem->OpenDirectory(level0Dir);
 451         if (!level0DirPtr) {
 452                 AliDebug(2,Form("Can't open level0 directory <%s>!",
 453                         level0Dir.Data()));
 454                 return;
 455         }
 456
 457         const char* level1;
 458         while ((level1 = gSystem->GetDirEntry(level0DirPtr))) {
 459
 460                 TString level1Str(level1);
 461                 if (level1Str == "." || level1Str == "..") {
 462                         continue;
 463                 }
 464
 465                 if (queryId.GetAliCDBPath().Level1Comprises(level1)) {
 466                         GetEntriesForLevel1(level0, level1, queryId, result);
 467                 }
 468         }
 469
 470         gSystem->FreeDirectory(level0DirPtr);
 471 }
 472
 473 //_____________________________________________________________________________
 474 void AliCDBLocal::GetEntriesForLevel1(const char* level0, const char* level1,
 475         const AliCDBId& queryId, TList* result) {
 476 // multiple request (AliCDBStorage::GetAll)
 477
 478         TString level1Dir;
 479         level1Dir += fBaseDirectory;
 480         level1Dir += '/';
 481         level1Dir += level0;
 482         level1Dir += '/';
 483         level1Dir += level1;
 484
 485         void* level1DirPtr = gSystem->OpenDirectory(level1Dir);
 486         if (!level1DirPtr) {
 487                 AliDebug(2,Form("Can't open level1 directory <%s>!",
 488                         level1Dir.Data()));
 489                 return;
 490         }
 491
 492         const char* level2;
 493         while ((level2 = gSystem->GetDirEntry(level1DirPtr))) {
 494
 495                 TString level2Str(level2);
 496                 if (level2Str == "." || level2Str == "..") {
 497                         continue;
 498                 }
 499
 500                 if (queryId.GetAliCDBPath().Level2Comprises(level2)) {
 501
 502                         AliCDBPath entryPath(level0, level1, level2);
 503                         AliCDBId entryId(entryPath, queryId.GetAliCDBRunRange(),
 504                                 queryId.GetVersion(), queryId.GetSubVersion());
 505
 506                         AliCDBEntry* anEntry = GetEntry(entryId);
 507                         if (anEntry) {
 508                                 result->Add(anEntry);
 509                         }
 510                 }
 511         }
 512
 513         gSystem->FreeDirectory(level1DirPtr);
 514 }
 515
 516 //_____________________________________________________________________________
 517 TList* AliCDBLocal::GetEntries(const AliCDBId& queryId) {
 518 // multiple request (AliCDBStorage::GetAll)
 519
 520         void* storageDirPtr = gSystem->OpenDirectory(fBaseDirectory);
 521         if (!storageDirPtr) {
 522                 AliDebug(2,Form("Can't open storage directory <%s>",
 523                         fBaseDirectory.Data()));
 524                 return NULL;
 525         }
 526
 527         TList* result = new TList();
 528         result->SetOwner();
 529
 530         const char* level0;
 531         while ((level0 = gSystem->GetDirEntry(storageDirPtr))) {
 532
 533                 TString level0Str(level0);
 534                 if (level0Str == "." || level0Str == "..") {
 535                         continue;
 536                 }
 537
 538                 if (queryId.GetAliCDBPath().Level0Comprises(level0)) {
 539                         GetEntriesForLevel0(level0, queryId, result);
 540                 }
 541         }
 542
 543         gSystem->FreeDirectory(storageDirPtr);
 544
 545         return result;
 546 }
 547
 548 //_____________________________________________________________________________
 549 Bool_t AliCDBLocal::PutEntry(AliCDBEntry* entry) {
 550 // put an AliCDBEntry object into the database
 551
 552         AliCDBId& id = entry->GetId();
 553
 554         // set version and subVersion for the entry to be stored
 555         if (!PrepareId(id)) return kFALSE;
 556
 557
 558         // build filename from entry's id
 559         TString filename="";
 560         if (!IdToFilename(id.GetAliCDBRunRange(), id.GetVersion(),
 561                 id.GetSubVersion(), filename)) {
 562
 563                 AliDebug(2,Form("Bad ID encountered! Subnormal error!"));
 564                 return kFALSE;
 565         }
 566
 567         filename.Prepend(fBaseDirectory +'/' + id.GetPath() + '/');
 568
 569         // open file
 570         TFile file(filename, "CREATE");
 571         if (!file.IsOpen()) {
 572                 AliError(Form("Can't open file <%s>!", filename.Data()));
 573                 return kFALSE;
 574         }
 575
 576         entry->SetVersion(id.GetVersion());
 577         entry->SetSubVersion(id.GetSubVersion());
 578
 579         // write object (key name: "AliCDBEntry")
 580         Bool_t result = file.WriteTObject(entry, "AliCDBEntry");
 581         if (!result) AliDebug(2,Form("Can't write entry to file: %s", filename.Data()));
 582
 583         file.Close();
 584         if(result) {
 585                 // TODO this is to make the SHUTTLE output lighter
 586                 if(!(id.GetPath().Contains("SHUTTLE/STATUS")))
 587                         AliInfo(Form("CDB object stored into file %s",filename.Data()));
 588         }
 589
 590         return result;
 591 }
 592
 593 //_____________________________________________________________________________
 594 TList* AliCDBLocal::GetIdListFromFile(const char* fileName){
 595
 596         TString fullFileName(fileName);
 597         fullFileName.Prepend(fBaseDirectory+'/');
 598         TFile *file = TFile::Open(fullFileName);
 599         if (!file) {
 600                 AliError(Form("Can't open selection file <%s>!", fullFileName.Data()));
 601                 return NULL;
 602         }
 603         file->cd();
 604
 605         TList *list = new TList();
 606         list->SetOwner();
 607         int i=0;
 608         TString keycycle;
 609
 610         AliCDBId *id;
 611         while(1){
 612                 i++;
 613                 keycycle = "AliCDBId;";
 614                 keycycle+=i;
 615
 616                 id = (AliCDBId*) file->Get(keycycle);
 617                 if(!id) break;
 618                 list->AddFirst(id);
 619         }
 620         file->Close(); delete file; file=0;
 621         return list;
 622 }
 623
 624 //_____________________________________________________________________________
 625 Bool_t AliCDBLocal::Contains(const char* path) const{
 626 // check for path in storage's fBaseDirectory
 627
 628         TString dirName;
 629         dirName += fBaseDirectory;
 630         dirName += '/';
 631         dirName += path; // dirName = fDBPath/path
 632         Bool_t result=kFALSE;
 633
 634         void* dirPtr = gSystem->OpenDirectory(dirName);
 635         if (dirPtr) result=kTRUE;
 636         gSystem->FreeDirectory(dirPtr);
 637
 638         return result;
 639 }
 640
 641 //_____________________________________________________________________________
 642 void AliCDBLocal::QueryValidFiles()
 643 {
 644 // blabla
 645
 646 }
 647
 648 /////////////////////////////////////////////////////////////////////////////////////////////////
 649 //                                                                                             //
 650 // AliCDBLocal factory                                                                         //
 651 //                                                                                             //
 652 /////////////////////////////////////////////////////////////////////////////////////////////////
 653
 654 ClassImp(AliCDBLocalFactory)
 655
 656 //_____________________________________________________________________________
 657 Bool_t AliCDBLocalFactory::Validate(const char* dbString) {
 658 // check if the string is valid local URI
 659
 660         TRegexp dbPattern("^local://.+$");
 661
 662         return TString(dbString).Contains(dbPattern);
 663 }
 664
 665 //_____________________________________________________________________________
 666 AliCDBParam* AliCDBLocalFactory::CreateParameter(const char* dbString) {
 667 // create AliCDBLocalParam class from the URI string
 668
 669         if (!Validate(dbString)) {
 670                 return NULL;
 671         }
 672
 673         TString pathname(dbString + sizeof("local://") - 1);
 674
 675         gSystem->ExpandPathName(pathname);
 676
 677         if (pathname[0] != '/') {
 678                 pathname.Prepend(TString(gSystem->WorkingDirectory()) + '/');
 679         }
 680
 681         return new AliCDBLocalParam(pathname);
 682 }
 683
 684 //_____________________________________________________________________________
 685 AliCDBStorage* AliCDBLocalFactory::Create(const AliCDBParam* param) {
 686 // create AliCDBLocal storage instance from parameters
 687
 688         if (AliCDBLocalParam::Class() == param->IsA()) {
 689
 690                 const AliCDBLocalParam* localParam =
 691                         (const AliCDBLocalParam*) param;
 692
 693                 return new AliCDBLocal(localParam->GetPath());
 694         }
 695
 696         return NULL;
 697 }
 698
 699 /////////////////////////////////////////////////////////////////////////////////////////////////
 700 //                                                                                             //
 701 // AliCDBLocal Parameter class                                                                 //                                          //
 702 //                                                                                             //
 703 /////////////////////////////////////////////////////////////////////////////////////////////////
 704
 705 ClassImp(AliCDBLocalParam)
 706
 707 //_____________________________________________________________________________
 708 AliCDBLocalParam::AliCDBLocalParam():
 709  AliCDBParam(),
 710  fDBPath()
 711  {
 712 // default constructor
 713
 714 }
 715
 716 //_____________________________________________________________________________
 717 AliCDBLocalParam::AliCDBLocalParam(const char* dbPath):
 718  AliCDBParam(),
 719  fDBPath(dbPath)
 720 {
 721 // constructor
 722
 723         SetType("local");
 724         SetURI(TString("local://") + dbPath);
 725 }
 726
 727 //_____________________________________________________________________________
 728 AliCDBLocalParam::~AliCDBLocalParam() {
 729 // destructor
 730
 731 }
 732
 733 //_____________________________________________________________________________
 734 AliCDBParam* AliCDBLocalParam::CloneParam() const {
 735 // clone parameter
 736
 737         return new AliCDBLocalParam(fDBPath);
 738 }
 739
 740 //_____________________________________________________________________________
 741 ULong_t AliCDBLocalParam::Hash() const {
 742 // return Hash function
 743
 744        return fDBPath.Hash();
 745 }
 746
 747 //_____________________________________________________________________________
 748 Bool_t AliCDBLocalParam::IsEqual(const TObject* obj) const {
 749 // check if this object is equal to AliCDBParam obj
 750
 751         if (this == obj) {
 752                 return kTRUE;
 753         }
 754
 755         if (AliCDBLocalParam::Class() != obj->IsA()) {
 756                 return kFALSE;
 757         }
 758
 759         AliCDBLocalParam* other = (AliCDBLocalParam*) obj;
 760
 761         return fDBPath == other->fDBPath;
 762 }
 763