fwlite::BranchMapReader Class Reference

#include <BranchMapReader.h>

Public Member Functions
	BranchMapReader (TFile *file)
	BranchMapReader ()
const std::vector < edm::BranchDescription > &	getBranchDescriptions ()
Long_t	getEventEntry () const
TTree *	getEventTree () const
TFile *	getFile () const
TUUID	getFileUUID () const
int	getFileVersion (TFile *file)
int	getFileVersion () const
Long_t	getLuminosityBlockEntry () const
TTree *	getLuminosityBlockTree () const
Long_t	getRunEntry () const
TTree *	getRunTree () const
const edm::BranchDescription	productToBranch (const edm::ProductID &pid)
bool	updateEvent (Long_t eventEntry)
bool	updateFile (TFile *file)
bool	updateLuminosityBlock (Long_t luminosityBlockEntry)
bool	updateRun (Long_t runEntry)

Private Member Functions
std::auto_ptr < internal::BMRStrategy >	newStrategy (TFile *file, int fileVersion)

Private Attributes
int	fileVersion_
std::auto_ptr < internal::BMRStrategy >	strategy_

Detailed Description

Definition at line 62 of file BranchMapReader.h.

Constructor & Destructor Documentation

BranchMapReader::BranchMapReader

(

TFile *

file

)

Definition at line 528 of file BranchMapReader.cc.

References edm::hlt::Exception, getFileVersion(), newStrategy(), and strategy_.

                                            :
    fileVersion_(-1) {
  if (0==file) {
     throw cms::Exception("NoFile")<<"The TFile pointer is null";
  }
  strategy_ = newStrategy(file, getFileVersion(file));
}

fwlite::BranchMapReader::BranchMapReader ( )

inline

Definition at line 65 of file BranchMapReader.h.

: strategy_(0),fileVersion_(0) {}

Member Function Documentation

const std::vector< edm::BranchDescription > & BranchMapReader::getBranchDescriptions

(

)

Definition at line 600 of file BranchMapReader.cc.

References strategy_.

Referenced by fwlite::Event::getBranchDescriptions().

                                       {
  return strategy_->getBranchDescriptions();
}

Long_t fwlite::BranchMapReader::getEventEntry ( ) const

inline

Definition at line 85 of file BranchMapReader.h.

References strategy_.

Referenced by fwlite::Event::atEnd(), fwlite::Event::eventAuxiliary(), fwlite::Event::getByLabel(), fwlite::Event::getByProductID(), fwlite::Event::history(), fwlite::Event::isValid(), and fwlite::Event::operator++().

{ return strategy_->eventEntry_; }

TTree* fwlite::BranchMapReader::getEventTree ( ) const

inline

Definition at line 81 of file BranchMapReader.h.

References strategy_.

Referenced by BareRootProductGetter::createNewBuffer(), fwlite::Event::draw(), fwlite::Event::Event(), fwlite::EntryFinder::fillIndex(), BareRootProductGetter::getIt(), fwlite::Event::scan(), and fwlite::Event::size().

{ return strategy_->eventTree_; }

TFile* fwlite::BranchMapReader::getFile ( ) const

inline

Definition at line 80 of file BranchMapReader.h.

References strategy_.

Referenced by fwlite::EntryFinder::fillIndex(), fwlite::Event::fillParameterSetRegistry(), BareRootProductGetter::getIt(), fwlite::Event::getTFile(), and fwlite::Event::history().

{ return strategy_->currentFile_; }

TUUID fwlite::BranchMapReader::getFileUUID ( ) const

inline

Definition at line 84 of file BranchMapReader.h.

References strategy_.

{ return strategy_->fileUUID_; }

int BranchMapReader::getFileVersion

(

TFile *

file

)

Definition at line 540 of file BranchMapReader.cc.

References edm::poolNames::fileFormatVersionBranchName(), fileVersion_, edm::poolNames::metaDataTreeName(), v, and edm::FileFormatVersion::value().

Referenced by fwlite::Event::Event().

                                               {
  TTree* metaDataTree = dynamic_cast<TTree*>(file->Get(edm::poolNames::metaDataTreeName().c_str()));
  if (0==metaDataTree) {
    return 0;
  }

  edm::FileFormatVersion v;
  edm::FileFormatVersion* pV=&v;
  TBranch* bVer = metaDataTree->GetBranch(edm::poolNames::fileFormatVersionBranchName().c_str());
  bVer->SetAddress(&pV);
  bVer->GetEntry(0);
  fileVersion_ = v.value();
  return v.value();
}

int fwlite::BranchMapReader::getFileVersion ( ) const

inline

Definition at line 78 of file BranchMapReader.h.

References fileVersion_.

Referenced by BranchMapReader(), and updateFile().

{ return  fileVersion_;}

Long_t fwlite::BranchMapReader::getLuminosityBlockEntry ( ) const

inline

Definition at line 86 of file BranchMapReader.h.

References strategy_.

{ return strategy_->luminosityBlockEntry_; }

TTree* fwlite::BranchMapReader::getLuminosityBlockTree ( ) const

inline

Definition at line 82 of file BranchMapReader.h.

References strategy_.

{ return strategy_->luminosityBlockTree_; }

Long_t fwlite::BranchMapReader::getRunEntry ( ) const

inline

Definition at line 87 of file BranchMapReader.h.

References strategy_.

{ return strategy_->runEntry_; }

TTree* fwlite::BranchMapReader::getRunTree ( ) const

inline

Definition at line 83 of file BranchMapReader.h.

References strategy_.

{ return strategy_->runTree_; }

std::auto_ptr< internal::BMRStrategy > BranchMapReader::newStrategy ( TFile *  file, int  fileVersion  )

private

Definition at line 606 of file BranchMapReader.cc.

References asciidump::s.

Referenced by BranchMapReader(), and updateFile().

                                                         {
  std::auto_ptr<internal::BMRStrategy> s;

  if (fileVersion >= 17) {
    s = std::auto_ptr<internal::BMRStrategy>(new internal::BranchMapReaderStrategyV17(file, fileVersion));
  } else if (fileVersion >= 11) {
    s = std::auto_ptr<internal::BMRStrategy>(new internal::BranchMapReaderStrategyV11(file, fileVersion));
  } else if (fileVersion >= 8) {
    s = std::auto_ptr<internal::BMRStrategy>(new internal::BranchMapReaderStrategyV8(file, fileVersion));
  } else if (fileVersion >= 7) {
    s = std::auto_ptr<internal::BMRStrategy>(new internal::BranchMapReaderStrategyV7(file, fileVersion));
  } else {
    s = std::auto_ptr<internal::BMRStrategy>(new internal::BranchMapReaderStrategyV1(file, fileVersion));
  }
  return s;
}

const edm::BranchDescription BranchMapReader::productToBranch

(

const edm::ProductID &

pid

)

Definition at line 595 of file BranchMapReader.cc.

References strategy_.

Referenced by BareRootProductGetter::createNewBuffer().

                                                        {
  return strategy_->productToBranch(pid);
}

bool BranchMapReader::updateEvent

(

Long_t

eventEntry

)

Definition at line 555 of file BranchMapReader.cc.

References strategy_.

Referenced by fwlite::Event::Event(), BareRootProductGetter::getIt(), fwlite::Event::operator++(), fwlite::Event::to(), and fwlite::Event::toBegin().

                                                 {
  return strategy_->updateEvent(newevent);
}

bool BranchMapReader::updateFile

(

TFile *

file

)

Definition at line 567 of file BranchMapReader.cc.

References edm::poolNames::eventTreeName(), getFileVersion(), newStrategy(), and strategy_.

Referenced by BareRootProductGetter::getIt().

                                            {
  if (0 == strategy_.get()) {
    strategy_ = newStrategy(file, getFileVersion(file));
    return true;
  }

  TFile* currentFile(strategy_->currentFile_);
  bool isNew(file != currentFile);

  if (!isNew) {
    //could still have a new TFile which just happens to share the same memory address as the previous file
    //will assume that if the Event tree's address and UUID are the same as before then we do not have
    // to treat this like a new file
    TTree* eventTreeTemp = dynamic_cast<TTree*>(currentFile->Get(edm::poolNames::eventTreeName().c_str()));
    isNew = eventTreeTemp != strategy_->eventTree_ || strategy_->fileUUID_ != currentFile->GetUUID();
  }
  if (isNew) {
    int fileVersion = getFileVersion(file);
    if (fileVersion != strategy_->fileVersion_) {
      strategy_ = newStrategy(file, fileVersion);
    } else {
      strategy_->updateFile(file);
    }
  }
  return isNew;
}

bool BranchMapReader::updateLuminosityBlock

(

Long_t

luminosityBlockEntry

)

Definition at line 559 of file BranchMapReader.cc.

References strategy_.

                                                          {
  return strategy_->updateLuminosityBlock(newlumi);
}

bool BranchMapReader::updateRun

(

Long_t

runEntry

)

Definition at line 563 of file BranchMapReader.cc.

References strategy_.

                                             {
  return strategy_->updateRun(newRun);
}

Member Data Documentation

int fwlite::BranchMapReader::fileVersion_

private

Definition at line 94 of file BranchMapReader.h.

Referenced by getFileVersion().

std::auto_ptr<internal::BMRStrategy> fwlite::BranchMapReader::strategy_

private

Definition at line 93 of file BranchMapReader.h.

Referenced by BranchMapReader(), getBranchDescriptions(), getEventEntry(), getEventTree(), getFile(), getFileUUID(), getLuminosityBlockEntry(), getLuminosityBlockTree(), getRunEntry(), getRunTree(), productToBranch(), updateEvent(), updateFile(), updateLuminosityBlock(), and updateRun().