fwlite::EntryFinder Class Reference

#include <EntryFinder.h>

Public Types
typedef edm::IndexIntoFile::EntryNumber_t	EntryNumber_t

Public Member Functions
bool	empty () const
	EntryFinder ()
void	fillIndex (BranchMapReader &branchMap)
EntryNumber_t	findEvent (edm::RunNumber_t const &run, edm::LuminosityBlockNumber_t const &lumi, edm::EventNumber_t const &event) const
EntryNumber_t	findLumi (edm::RunNumber_t const &run, edm::LuminosityBlockNumber_t const &lumi) const
EntryNumber_t	findRun (edm::RunNumber_t const &run) const
	~EntryFinder ()

Static Public Attributes
static const EntryNumber_t	invalidEntry = -1LL

Private Attributes
edm::FileIndex	fileIndex_
edm::IndexIntoFile	indexIntoFile_

Detailed Description

Definition at line 29 of file EntryFinder.h.

Member Typedef Documentation

EntryNumber_t

typedef edm::IndexIntoFile::EntryNumber_t fwlite::EntryFinder::EntryNumber_t

Definition at line 33 of file EntryFinder.h.

Constructor & Destructor Documentation

EntryFinder()

fwlite::EntryFinder::EntryFinder

(

)

Definition at line 53 of file EntryFinder.cc.

: indexIntoFile_(), fileIndex_() {}

~EntryFinder()

fwlite::EntryFinder::~EntryFinder

(

)

Definition at line 54 of file EntryFinder.cc.

{}

Member Function Documentation

empty()

bool fwlite::EntryFinder::empty ( ) const

inline

Definition at line 34 of file EntryFinder.h.

{ return indexIntoFile_.empty() && fileIndex_.empty(); }

References edm::FileIndex::empty(), edm::IndexIntoFile::empty(), fileIndex_, and indexIntoFile_.

Referenced by fillIndex().

fillIndex()

void fwlite::EntryFinder::fillIndex

(

BranchMapReader &

branchMap

)

Definition at line 107 of file EntryFinder.cc.

                                                        {
    if (empty()) {
      TTree* meta = dynamic_cast<TTree*>(branchMap.getFile()->Get(edm::poolNames::metaDataTreeName().c_str()));
      if (nullptr == meta) {
        throw cms::Exception("NoMetaTree")
            << "The TFile does not contain a TTree named " << edm::poolNames::metaDataTreeName();
      }
      if (meta->FindBranch(edm::poolNames::indexIntoFileBranchName().c_str()) != nullptr) {
        edm::IndexIntoFile* indexPtr = &indexIntoFile_;
        TBranch* b = meta->GetBranch(edm::poolNames::indexIntoFileBranchName().c_str());
        b->SetAddress(&indexPtr);
        b->GetEntry(0);
        TTree* eventTree = branchMap.getEventTree();
        TBranch* auxBranch = eventTree->GetBranch(edm::BranchTypeToAuxiliaryBranchName(edm::InEvent).c_str());
        if (nullptr == auxBranch) {
          throw cms::Exception("NoEventAuxilliary")
              << "The TTree " << edm::poolNames::eventTreeName() << " does not contain a branch named 'EventAuxiliary'";
        }
 
        indexIntoFile_.setNumberOfEvents(auxBranch->GetEntries());
        indexIntoFile_.setEventFinder(
            std::shared_ptr<edm::IndexIntoFile::EventFinder>(std::make_shared<FWLiteEventFinder>(auxBranch)));
 
      } else if (meta->FindBranch(edm::poolNames::fileIndexBranchName().c_str()) != nullptr) {
        edm::FileIndex* findexPtr = &fileIndex_;
        TBranch* b = meta->GetBranch(edm::poolNames::fileIndexBranchName().c_str());
        b->SetAddress(&findexPtr);
        b->GetEntry(0);
      } else {
        // TBD: fill the FileIndex for old file formats (prior to CMSSW 2_0_0)
        throw cms::Exception("NoIndexBranch")
            << "The TFile does not contain a TBranch named " << edm::poolNames::indexIntoFileBranchName().c_str()
            << " or " << edm::poolNames::fileIndexBranchName().c_str();
      }
    }
    assert(!empty());
  }

References cms::cuda::assert(), b, edm::BranchTypeToAuxiliaryBranchName(), empty(), edm::poolNames::eventTreeName(), Exception, fileIndex_, edm::poolNames::fileIndexBranchName(), fwlite::BranchMapReader::getEventTree(), fwlite::BranchMapReader::getFile(), indexIntoFile_, edm::poolNames::indexIntoFileBranchName(), edm::InEvent, edm::poolNames::metaDataTreeName(), edm::IndexIntoFile::setEventFinder(), and edm::IndexIntoFile::setNumberOfEvents().

Referenced by fwlite::Event::indexFromEventId(), fwlite::Run::to(), fwlite::LuminosityBlock::to(), and fwlite::Event::to().

findEvent()

EntryFinder::EntryNumber_t fwlite::EntryFinder::findEvent	(	edm::RunNumber_t const &	run,
		edm::LuminosityBlockNumber_t const &	lumi,
		edm::EventNumber_t const &	event
	)		const

Definition at line 56 of file EntryFinder.cc.

                                                                                         {
    EntryFinder::EntryNumber_t ret = invalidEntry;
    if (!indexIntoFile_.empty()) {
      edm::IndexIntoFile::IndexIntoFileItr i = indexIntoFile_.findEventPosition(run, lumi, event);
      if (indexIntoFile_.end(edm::IndexIntoFile::numericalOrder) != i) {
        ret = i.entry();
      }
    } else {
      edm::FileIndex::const_iterator i = fileIndex_.findEventPosition(run, lumi, event);
      if (fileIndex_.end() != i) {
        ret = i->entry_;
      }
    }
    return ret;
  }

References edm::IndexIntoFile::empty(), edm::FileIndex::end(), edm::IndexIntoFile::end(), fileIndex_, edm::FileIndex::findEventPosition(), edm::IndexIntoFile::findEventPosition(), mps_fire::i, indexIntoFile_, invalidEntry, edm::IndexIntoFile::numericalOrder, runTheMatrix::ret, and writedatasetfile::run.

Referenced by fwlite::Event::indexFromEventId(), and fwlite::Event::to().

findLumi()

EntryFinder::EntryNumber_t fwlite::EntryFinder::findLumi	(	edm::RunNumber_t const &	run,
		edm::LuminosityBlockNumber_t const &	lumi
	)		const

Definition at line 74 of file EntryFinder.cc.

                                                                                                 {
    EntryFinder::EntryNumber_t ret = invalidEntry;
    if (!indexIntoFile_.empty()) {
      edm::IndexIntoFile::IndexIntoFileItr i = indexIntoFile_.findLumiPosition(run, lumi);
      if (indexIntoFile_.end(edm::IndexIntoFile::numericalOrder) != i) {
        ret = i.entry();
      }
    } else {
      edm::FileIndex::const_iterator i = fileIndex_.findLumiPosition(run, lumi);
      if (fileIndex_.end() != i) {
        ret = i->entry_;
      }
    }
    return ret;
  }

References edm::IndexIntoFile::empty(), edm::FileIndex::end(), edm::IndexIntoFile::end(), fileIndex_, edm::FileIndex::findLumiPosition(), edm::IndexIntoFile::findLumiPosition(), mps_fire::i, indexIntoFile_, invalidEntry, edm::IndexIntoFile::numericalOrder, runTheMatrix::ret, and writedatasetfile::run.

Referenced by fwlite::LuminosityBlock::to().

findRun()

EntryFinder::EntryNumber_t fwlite::EntryFinder::findRun

(

edm::RunNumber_t const &

run

)

const

Definition at line 91 of file EntryFinder.cc.

                                                                               {
    EntryFinder::EntryNumber_t ret = invalidEntry;
    if (!indexIntoFile_.empty()) {
      edm::IndexIntoFile::IndexIntoFileItr i = indexIntoFile_.findRunPosition(run);
      if (indexIntoFile_.end(edm::IndexIntoFile::numericalOrder) != i) {
        ret = i.entry();
      }
    } else {
      edm::FileIndex::const_iterator i = fileIndex_.findRunPosition(run);
      if (fileIndex_.end() != i) {
        ret = i->entry_;
      }
    }
    return ret;
  }

References edm::IndexIntoFile::empty(), edm::FileIndex::end(), edm::IndexIntoFile::end(), fileIndex_, edm::FileIndex::findRunPosition(), edm::IndexIntoFile::findRunPosition(), mps_fire::i, indexIntoFile_, invalidEntry, edm::IndexIntoFile::numericalOrder, runTheMatrix::ret, and writedatasetfile::run.

Referenced by fwlite::Run::to().

Member Data Documentation

fileIndex_

edm::FileIndex fwlite::EntryFinder::fileIndex_

private

Definition at line 45 of file EntryFinder.h.

Referenced by empty(), fillIndex(), findEvent(), findLumi(), and findRun().

indexIntoFile_

edm::IndexIntoFile fwlite::EntryFinder::indexIntoFile_

private

Definition at line 44 of file EntryFinder.h.

Referenced by empty(), fillIndex(), findEvent(), findLumi(), and findRun().

invalidEntry

const EntryNumber_t fwlite::EntryFinder::invalidEntry = -1LL

static

Definition at line 41 of file EntryFinder.h.

Referenced by findEvent(), findLumi(), findRun(), fwlite::Event::indexFromEventId(), fwlite::Run::to(), fwlite::LuminosityBlock::to(), and fwlite::Event::to().