fwlite::MultiChainEvent Class Reference

#include <MultiChainEvent.h>

Inheritance diagram for fwlite::MultiChainEvent:

Public Types
typedef std::pair < edm::EventID, edm::EventID >	event_id_range
typedef std::map< edm::EventID, Long64_t >	sec_file_index_map
typedef std::map < event_id_range, Long64_t >	sec_file_range_index_map

Public Member Functions
bool	atEnd () const
virtual edm::EventAuxiliary const &	eventAuxiliary () const
Long64_t	eventIndex () const
Long64_t	eventIndexSec () const
virtual Long64_t	fileIndex () const
const std::vector < edm::BranchDescription > &	getBranchDescriptions () const
virtual const std::string	getBranchNameFor (const std::type_info &, const char *, const char *, const char *) const
virtual bool	getByLabel (const std::type_info &, const char *, const char *, const char *, void *) const
edm::EDProduct const *	getByProductID (edm::ProductID const &) const
fwlite::LuminosityBlock const &	getLuminosityBlock ()
const std::vector< std::string > &	getProcessHistory () const
fwlite::Run const &	getRun ()
TFile *	getTFile () const
TFile *	getTFileSec () const
bool	isValid () const
	MultiChainEvent (const std::vector< std::string > &iFileNames1, const std::vector< std::string > &iFileNames2, bool useSecFileMapSorted=false)
	operator bool () const
const MultiChainEvent &	operator++ ()
ChainEvent const *	primary () const
edm::ProcessHistory const &	processHistory () const
ChainEvent const *	secondary () const
virtual Long64_t	secondaryFileIndex () const
Long64_t	size () const
bool	to (Long64_t iIndex)
	Go to the event at index iIndex. More...
bool	to (edm::EventID id)
	Go to event with event id "id". More...
bool	to (edm::RunNumber_t run, edm::EventNumber_t event)
	Go to event with given run and event number. More...
bool	to (edm::RunNumber_t run, edm::LuminosityBlockNumber_t lumi, edm::EventNumber_t event)
	Go to event with given run , lumi (if non-zero), and event number. More...
const MultiChainEvent &	toBegin ()
virtual edm::TriggerNames const &	triggerNames (edm::TriggerResults const &triggerResults) const
virtual edm::TriggerResultsByName	triggerResultsByName (std::string const &process) const
virtual	~MultiChainEvent ()
Public Member Functions inherited from fwlite::EventBase
	EventBase ()
virtual	~EventBase ()
Public Member Functions inherited from edm::EventBase
int	bunchCrossing () const
	EventBase ()
edm::EventAuxiliary::ExperimentType	experimentType () const
template<class T >
bool	getByLabel (const InputTag &, Handle< T > &) const
template<>
bool	getByLabel (edm::InputTag const &tag, Handle< FWGenericObject > &result) const
	Specialize the getByLabel method to work with a Handle<FWGenericObject> More...
edm::EventID	id () const
bool	isRealData () const
edm::LuminosityBlockNumber_t	luminosityBlock () const
int	orbitNumber () const
edm::Timestamp	time () const

Static Public Member Functions
static void	throwProductNotFoundException (const std::type_info &, const char *, const char *, const char *)

Private Member Functions
	MultiChainEvent (const Event &)
const MultiChainEvent &	operator= (const Event &)
bool	toSec (Long64_t iIndex)
	Go to the event from secondary files at index iIndex. More...
bool	toSec (const edm::EventID &id)
bool	toSec (edm::RunNumber_t run, edm::LuminosityBlockNumber_t lumi, edm::EventNumber_t event)
	Go to event with given run, lumi, and event number. More...
bool	toSec (edm::RunNumber_t run, edm::EventNumber_t event)
	Go to event with given run and event number. More...

Private Attributes
boost::shared_ptr< ChainEvent >	event1_
boost::shared_ptr< ChainEvent >	event2_
boost::shared_ptr < internal::MultiProductGetter >	getter_
sec_file_range_index_map	secFileMapSorted_
bool	useSecFileMapSorted_

Additional Inherited Members
Static Protected Member Functions inherited from edm::EventBase
static TriggerNames const *	triggerNames_ (edm::TriggerResults const &triggerResults)

Detailed Description

Definition at line 50 of file MultiChainEvent.h.

Member Typedef Documentation

typedef std::pair<edm::EventID, edm::EventID> fwlite::MultiChainEvent::event_id_range

Definition at line 56 of file MultiChainEvent.h.

typedef std::map<edm::EventID, Long64_t> fwlite::MultiChainEvent::sec_file_index_map

Definition at line 55 of file MultiChainEvent.h.

typedef std::map<event_id_range, Long64_t> fwlite::MultiChainEvent::sec_file_range_index_map

Definition at line 57 of file MultiChainEvent.h.

Constructor & Destructor Documentation

MultiChainEvent::MultiChainEvent	(	const std::vector< std::string > &	iFileNames1,
		const std::vector< std::string > &	iFileNames2,
		bool	useSecFileMapSorted = false
	)

Definition at line 54 of file MultiChainEvent.cc.

References gather_cfg::cout, event1_, event2_, getter_, secFileMapSorted_, and useSecFileMapSorted_.

{
  event1_ = boost::shared_ptr<ChainEvent> ( new ChainEvent( iFileNames1 ) );
  event2_ = boost::shared_ptr<ChainEvent> ( new ChainEvent( iFileNames2 ) );

  getter_ = boost::shared_ptr<internal::MultiProductGetter>( new internal::MultiProductGetter( this) );

  event1_->setGetter( getter_ );
  event2_->setGetter( getter_ );

  useSecFileMapSorted_ = useSecFileMapSorted;

  if ( !useSecFileMapSorted_ ) {
    std::cout << "------------------------------------------------------------------------" << std::endl;
    std::cout << "WARNING! What you are about to do may be very slow." << std::endl;
    std::cout << "The 2-file solution in FWLite works with very simple assumptions." << std::endl;
    std::cout << "It will linearly search through the files in the secondary file list for Products." << std::endl;
    std::cout << "There are speed improvements available to make this run faster." << std::endl;
    std::cout << "***If your secondary files are sorted with a run-range within a file, (almost always the case) " << std::endl;
    std::cout << "***please use the option useSecFileMapSorted=true in this constructor. " << std::endl;
    std::cout << "    > usage: MultiChainEvent( primaryFiles, secondaryFiles, true);" << std::endl;
    std::cout << "------------------------------------------------------------------------" << std::endl;    
    
  }

  if ( useSecFileMapSorted_ ) {

    std::cout << "------------------------------------------------------------------------" << std::endl;    
    std::cout << "This MultiChainEvent is now creating a (run_range)_2 ---> file_index_2 map" << std::endl;
    std::cout << "for the 2-file solution. " << std::endl;
    std::cout << "This is assuming the files you are giving me are sorted by run,event pairs within each secondary file." << std::endl;
    std::cout << "If this is not true (rarely the case), set this option to false." << std::endl;
    std::cout << "    > usage: MultiChainEvent( primaryFiles, secondaryFiles, false);" << std::endl;
    std::cout << "------------------------------------------------------------------------" << std::endl;    
    // speed up secondary file access with a (run,event)_1 ---> index_2 map
    

    // Loop over events, when a new file is encountered, store the first run number from this file,
    // and the last run number from the last file. 
    TFile * lastFile = 0;
    std::pair<event_id_range,Long64_t> eventRange;
    bool firstFile = true;

    bool foundAny = false;

    for( event2_->toBegin();
     ! event2_->atEnd();
     ++(*event2_)) {
      // if we have a new file, cache the "first"
      if ( lastFile != event2_->getTFile() ) {

    // if this is not the first file, we have an entry.
    // Add it to the list.
    if ( !firstFile ) {
      foundAny = true;
      event_id_range toAdd = eventRange.first;
      secFileMapSorted_[ toAdd ] = eventRange.second;
    }
    // always add the "first" event id to the cached event range
    eventRange.first.first = event2_->event()->id();
    lastFile = event2_->getTFile();
      }
      // otherwise, cache the "second" event id in the cached event range.
      // Upon the discovery of a new file, this will be used as the
      // "last" event id in the cached event range. 
      else {
    eventRange.first.second = event2_->event()->id();
    eventRange.second = event2_->eventIndex();
      }
      firstFile = false;
    }
    // due to the invailability of a "look ahead" operation, we have one additional "put" to make
    // after the loop (which puts the "last" event, not "this" event.
    if ( foundAny ) {
      event_id_range toAdd = eventRange.first;
      secFileMapSorted_[ toAdd ] = eventRange.second;
    }
//     std::cout << "Dumping run range to event id list:" << std::endl;
//     for ( sec_file_range_index_map::const_iterator mBegin = secFileMapSorted_.begin(),
//      mEnd = secFileMapSorted_.end(),
//      mit = mBegin;
//    mit != mEnd; ++mit ) {
//       char buff[1000];
//       event2_->to( mit->second );
//       sprintf(buff, "[%10d,%10d - %10d,%10d] ---> %10d",
//        mit->first.first.run(),
//        mit->first.first.event(),
//        mit->first.second.run(),
//        mit->first.second.event(),
//        mit->second );
//       std::cout << buff << std::endl;
//     }
  }

}

MultiChainEvent::~MultiChainEvent ( )

virtual

Definition at line 157 of file MultiChainEvent.cc.

{
}

fwlite::MultiChainEvent::MultiChainEvent ( const Event &  )

private

Member Function Documentation

bool MultiChainEvent::atEnd ( ) const

virtual

Implements fwlite::EventBase.

Definition at line 384 of file MultiChainEvent.cc.

References event1_.

{
  return event1_->atEnd();
}

edm::EventAuxiliary const & MultiChainEvent::eventAuxiliary ( ) const

virtual

Implements edm::EventBase.

Definition at line 336 of file MultiChainEvent.cc.

References event1_.

{
   return event1_->eventAuxiliary();
}

Long64_t fwlite::MultiChainEvent::eventIndex ( ) const

inline

Definition at line 108 of file MultiChainEvent.h.

References event1_.

{ return event1_->eventIndex(); }

Long64_t fwlite::MultiChainEvent::eventIndexSec ( ) const

inline

Definition at line 109 of file MultiChainEvent.h.

References event2_.

{ return event2_->eventIndex(); }

virtual Long64_t fwlite::MultiChainEvent::fileIndex ( ) const

inlinevirtual

Reimplemented from fwlite::EventBase.

Definition at line 120 of file MultiChainEvent.h.

References event1_.

Referenced by python.Events::fileIndicies().

      { return event1_->eventIndex(); }

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

(

)

const

Definition at line 318 of file MultiChainEvent.cc.

References event1_.

{
  return event1_->getBranchDescriptions();
}

const std::string MultiChainEvent::getBranchNameFor ( const std::type_info &  iType, const char *  iModule, const char *  iInstance, const char *  iProcess  ) const

virtual

Implements fwlite::EventBase.

Definition at line 309 of file MultiChainEvent.cc.

References event1_.

{
  return event1_->getBranchNameFor(iType,iModule,iInstance,iProcess);
}

bool MultiChainEvent::getByLabel ( const std::type_info &  iType, const char *  iModule, const char *  iInstance, const char *  iProcess, void *  iValue  ) const

virtual

This function should only be called by fwlite::Handle<>

Implements fwlite::EventBase.

Definition at line 342 of file MultiChainEvent.cc.

References event1_, and event2_.

{
  bool ret1 = event1_->getByLabel(iType,iModule,iInstance,iProcess,iValue);
  if ( !ret1 ) {
    (const_cast<MultiChainEvent*>(this))->toSec(event1_->id());
    bool ret2 = event2_->getByLabel(iType,iModule,iInstance,iProcess,iValue);
    if ( !ret2 ) return false;
  }
  return true;
}

edm::EDProduct const * MultiChainEvent::getByProductID

(

edm::ProductID const &

iID

)

const

Definition at line 357 of file MultiChainEvent.cc.

References event1_, event2_, edm::hlt::Exception, and parseEventContent::prod.

Referenced by fwlite::internal::MultiProductGetter::getIt().

{
  // First try the first file
  edm::EDProduct const * prod = event1_->getByProductID(iID);
  // Did not find the product, try secondary file
  if ( 0 == prod ) {
    (const_cast<MultiChainEvent*>(this))->toSec(event1_->id());
    prod = event2_->getByProductID(iID);
    if ( 0 == prod ) {
      throw cms::Exception("ProductNotFound") << "Cannot find product " << iID;
    }
  }
  return prod;
}

fwlite::LuminosityBlock const& fwlite::MultiChainEvent::getLuminosityBlock ( )

inline

Definition at line 111 of file MultiChainEvent.h.

References event1_.

                                                        {
        return event1_->getLuminosityBlock();
      }

const std::vector< std::string > & MultiChainEvent::getProcessHistory

(

)

const

Definition at line 324 of file MultiChainEvent.cc.

References event1_.

{
  return event1_->getProcessHistory();
}

fwlite::Run const& fwlite::MultiChainEvent::getRun ( )

inline

Definition at line 115 of file MultiChainEvent.h.

References event1_.

                                {
        return event1_->getRun();
      }

TFile* fwlite::MultiChainEvent::getTFile ( ) const

inline

Definition at line 101 of file MultiChainEvent.h.

References event1_.

                              {
        return event1_->getTFile();
      }

TFile* fwlite::MultiChainEvent::getTFileSec ( ) const

inline

Definition at line 104 of file MultiChainEvent.h.

References event2_.

                                 {
        return event2_->getTFile();
      }

bool MultiChainEvent::isValid

(

void

)

const

Definition at line 374 of file MultiChainEvent.cc.

References event1_.

{
  return event1_->isValid();
}

MultiChainEvent::operator bool

(

)

const

Definition at line 378 of file MultiChainEvent.cc.

{
  return *event1_;
}

const MultiChainEvent & MultiChainEvent::operator++ ( )

virtual

Implements fwlite::EventBase.

Definition at line 178 of file MultiChainEvent.cc.

References event1_.

{
   event1_->operator++();
   return *this;
}

const MultiChainEvent& fwlite::MultiChainEvent::operator= ( const Event &  )

private

ChainEvent const* fwlite::MultiChainEvent::primary ( ) const

inline

Definition at line 132 of file MultiChainEvent.h.

References event1_.

{ return &*event1_;}

edm::ProcessHistory const & MultiChainEvent::processHistory ( ) const

virtual

Implements edm::EventBase.

Definition at line 330 of file MultiChainEvent.cc.

References event1_.

{
  return event1_->processHistory();
}

ChainEvent const* fwlite::MultiChainEvent::secondary ( ) const

inline

Definition at line 133 of file MultiChainEvent.h.

References event2_.

{ return &*event2_;}

virtual Long64_t fwlite::MultiChainEvent::secondaryFileIndex ( ) const

inlinevirtual

Reimplemented from fwlite::EventBase.

Definition at line 122 of file MultiChainEvent.h.

References event2_.

Referenced by python.Events::fileIndicies().

      { return event2_->eventIndex(); }

Long64_t MultiChainEvent::size

(

void

)

const

Definition at line 390 of file MultiChainEvent.cc.

References event1_.

{
  return event1_->size();
}

void MultiChainEvent::throwProductNotFoundException ( const std::type_info &  iType, const char *  iModule, const char *  iInstance, const char *  iProcess  )

static

Definition at line 446 of file MultiChainEvent.cc.

References fwlite::ChainEvent::throwProductNotFoundException().

                                                                {
  ChainEvent::throwProductNotFoundException(iType,iModule,iInstance,iProcess);
}

bool MultiChainEvent::to

(

Long64_t

iIndex

)

Go to the event at index iIndex.

Definition at line 186 of file MultiChainEvent.cc.

References event1_.

Referenced by to().

{
  return event1_->to( iIndex );
}

bool MultiChainEvent::to

(

edm::EventID

id

)

Go to event with event id "id".

Definition at line 194 of file MultiChainEvent.cc.

References event(), edm::EventBase::luminosityBlock(), DTTTrigCorrFirst::run, and to().

{
  return to(id.run(), id.luminosityBlock(), id.event());
}

bool MultiChainEvent::to	(	edm::RunNumber_t	run,
		edm::EventNumber_t	event
	)

Go to event with given run and event number.

Definition at line 208 of file MultiChainEvent.cc.

References to().

{
   return to( run, 0U, event );
}

bool MultiChainEvent::to	(	edm::RunNumber_t	run,
		edm::LuminosityBlockNumber_t	lumi,
		edm::EventNumber_t	event
	)

Go to event with given run , lumi (if non-zero), and event number.

Definition at line 201 of file MultiChainEvent.cc.

References event1_.

{
   return event1_->to( run, lumi, event );
}

const MultiChainEvent & MultiChainEvent::toBegin ( )

virtual

Implements fwlite::EventBase.

Definition at line 299 of file MultiChainEvent.cc.

References event1_.

{
   event1_->toBegin();
   return *this;
}

bool MultiChainEvent::toSec ( Long64_t  iIndex )

private

Go to the event from secondary files at index iIndex.

Go to the event at index iIndex.

Definition at line 216 of file MultiChainEvent.cc.

References event2_.

Referenced by toSec().

{
   return event2_->to( iIndex );
}

bool MultiChainEvent::toSec ( const edm::EventID &  id )

private

Definition at line 223 of file MultiChainEvent.cc.

References event2_, edm::hlt::Exception, first, and secFileMapSorted_.

{
   // First try this file.
   if ( event2_->event_->to( id ) ) 
   {
      // Found it, return. 
      return true;
   }
   // Second, assume that the secondary files are each in run/event
   // order.  So, let's loop over all files and see if we can figure
   // out where the event ought to be.
   for ( sec_file_range_index_map::const_iterator mBegin = 
            secFileMapSorted_.begin(),
            mEnd = secFileMapSorted_.end(),
            mit = mBegin;
         mit != mEnd; 
         ++mit ) 
   {
      if ( id < mit->first.first || id > mit->first.second ) 
      {
         // We don't expect this event to be in this file, so don't
         // bother checking it right now.
         continue;
      }
      // If we're here, then we have a reasonable belief that this
      // event is in this secondary file.  This part is
      // expensive. switchToFile does memory allocations and opens the
      // files which becomes very time consuming. This should be done
      // as infrequently as possible.
      event2_->switchToFile( mit->second );
      // Is it here?
      if (event2_->to( id ))
      {
         // Yes!
         return true;
      }
      // if we assumed that the secondary files were not each in
      // order, but were non-overlapping, we could break here.  But at
      // this point, we might as well keep going.
   } // for loop over files

   // if we are still here, then we did not find the id in question,
   // do it the old fashioned way.  This will open up each secondary
   // file and explicitly check to see if the event is there.
   if (event2_->to(id))
   {
      return true;
   }
   // if we're still here, then there really is no matching event in
   // the secondary files.  Throw.
   throw cms::Exception("ProductNotFound") << "Cannot find id " 
                                           << id.run() << ", " 
                                           << id.event() 
                                           << " in secondary list. Exiting." 
                                           << std::endl;
   // to make the compiler happy
   return false;
}

bool MultiChainEvent::toSec ( edm::RunNumber_t  run, edm::LuminosityBlockNumber_t  lumi, edm::EventNumber_t  event  )

private

Go to event with given run, lumi, and event number.

Definition at line 284 of file MultiChainEvent.cc.

References toSec().

{
  return toSec( edm::EventID( run, lumi, event) );
}

bool MultiChainEvent::toSec ( edm::RunNumber_t  run, edm::EventNumber_t  event  )

private

Go to event with given run and event number.

Definition at line 292 of file MultiChainEvent.cc.

References toSec().

{
  return toSec( edm::EventID( run, 0U, event) );
}

edm::TriggerNames const & MultiChainEvent::triggerNames ( edm::TriggerResults const &  triggerResults ) const

virtual

Implements edm::EventBase.

Definition at line 396 of file MultiChainEvent.cc.

References event1_, event2_, edm::hlt::Exception, h::names, and edm::EventBase::triggerNames_().

{
  edm::TriggerNames const* names = triggerNames_(triggerResults);
  if (names != 0) return *names;

  event1_->fillParameterSetRegistry();
  names = triggerNames_(triggerResults);
  if (names != 0) return *names;

  // If we cannot find it in the primary file, this probably will
  // not help but try anyway
  event2_->to( event1_->id() );
  event2_->fillParameterSetRegistry();
  names = triggerNames_(triggerResults);
  if (names != 0) return *names;

  throw cms::Exception("TriggerNamesNotFound")
    << "TriggerNames not found in ParameterSet registry";
  return *names;
}

edm::TriggerResultsByName MultiChainEvent::triggerResultsByName ( std::string const &  process ) const

virtual

Implements edm::EventBase.

Definition at line 418 of file MultiChainEvent.cc.

References event1_, event2_, fwlite::Handle< T >::getByLabel(), fwlite::Handle< T >::isValid(), h::names, fwlite::Handle< T >::product(), and edm::EventBase::triggerNames_().

                                                                    {

  fwlite::Handle<edm::TriggerResults> hTriggerResults;
  hTriggerResults.getByLabel(*this,"TriggerResults","",process.c_str());
  if ( !hTriggerResults.isValid()) {
    return edm::TriggerResultsByName(0,0);
  }

  edm::TriggerNames const* names = triggerNames_(*hTriggerResults);

  if (names == 0) {
    event1_->fillParameterSetRegistry();
    names = triggerNames_(*hTriggerResults);
  }

  if (names == 0) {
    event2_->to( event1_->id() );
    event2_->fillParameterSetRegistry();
    names = triggerNames_(*hTriggerResults);
  }

  return edm::TriggerResultsByName(hTriggerResults.product(), names);
}

Member Data Documentation

boost::shared_ptr<ChainEvent> fwlite::MultiChainEvent::event1_

private

Definition at line 157 of file MultiChainEvent.h.

Referenced by atEnd(), eventAuxiliary(), eventIndex(), fileIndex(), getBranchDescriptions(), getBranchNameFor(), getByLabel(), getByProductID(), getLuminosityBlock(), getProcessHistory(), getRun(), getTFile(), isValid(), MultiChainEvent(), operator++(), primary(), processHistory(), size(), to(), toBegin(), triggerNames(), and triggerResultsByName().

boost::shared_ptr<ChainEvent> fwlite::MultiChainEvent::event2_

private

Definition at line 158 of file MultiChainEvent.h.

Referenced by eventIndexSec(), getByLabel(), getByProductID(), getTFileSec(), MultiChainEvent(), secondary(), secondaryFileIndex(), toSec(), triggerNames(), and triggerResultsByName().

boost::shared_ptr<internal::MultiProductGetter> fwlite::MultiChainEvent::getter_

private

Definition at line 159 of file MultiChainEvent.h.

Referenced by MultiChainEvent().

sec_file_range_index_map fwlite::MultiChainEvent::secFileMapSorted_

private

Definition at line 166 of file MultiChainEvent.h.

Referenced by MultiChainEvent(), and toSec().

bool fwlite::MultiChainEvent::useSecFileMapSorted_

private

Definition at line 165 of file MultiChainEvent.h.

Referenced by MultiChainEvent().