OfflineEventLoopMgr Class Reference

#include <OfflineEventLoopMgr.h>

Inheritance diagram for OfflineEventLoopMgr:

Public Member Functions
	OfflineEventLoopMgr (const std::string &nam, ISvcLocator *svcLoc)
	Standard Constructor.
virtual	~OfflineEventLoopMgr ()
	Standard Destructor.
StatusCode	getEventRoot (IOpaqueAddress *&refpAddr)
	Create event address using event selector.
virtual StatusCode	initialize ()
	implementation of IService::initalize
virtual StatusCode	reinitialize ()
	implementation of IService::reinitalize
virtual StatusCode	finalize ()
	implementation of IService::finalize
virtual StatusCode	nextEvent (int maxevt)
	implementation of IService::nextEvent
virtual StatusCode	executeEvent (void *par)
	implementation of IEventProcessor::executeEvent(void* par)
virtual StatusCode	executeRun (int maxevt)
	implementation of IEventProcessor::executeRun()

Protected Attributes
IIncidentSvc *	m_incidentSvc
	Reference to the indicent service.
IDataManagerSvc *	m_evtDataMgrSvc
	Reference to the Event Data Service's IDataManagerSvc interface.
IDataProviderSvc *	m_evtDataSvc
	Reference to the Event Data Service's IDataProviderSvc interface.
IEvtSelector *	m_evtSelector
	Reference to the Event Selector.
IEvtSelector::Context *	m_evtContext
	Event Iterator.
std::string	m_evtsel
	Event selector.
IDataManagerSvc *	m_histoDataMgrSvc
	Reference to the Histogram Data Service.
IConversionSvc *	m_histoPersSvc
	Reference to the Histogram Persistency Service.
std::string	m_histPersName
	Name of the Hist Pers type.
IProperty *	m_appMgrProperty
	Property interface of ApplicationMgr.

Friends
class	SvcFactory< OfflineEventLoopMgr >
	Creator friend class.

Detailed Description

Class definition of OfflineEventLoopMgr. This is the default processing manager of the application manager. This object handles the minimal requirements needed by the application manager. It also handles the default user configuration setup for standard event processing.

• handling of the incidents when starting event processing
• handling of the event loop

History:

 +---------+----------------------------------------------+---------+
 |    Date |                 Comment                      | Who     |
 +---------+----------------------------------------------+---------+
 |13/12/00 | Initial version                              | M.Frank |
 +---------+----------------------------------------------+---------+
 

Author

Markus Frank

Version

1.0

Definition at line 37 of file OfflineEventLoopMgr.h.

Constructor & Destructor Documentation

OfflineEventLoopMgr()

OfflineEventLoopMgr::OfflineEventLoopMgr	(	const std::string &	nam,
		ISvcLocator *	svcLoc )

Standard Constructor.

Definition at line 30 of file OfflineEventLoopMgr.cxx.

: MinimalEventLoopMgr(nam, svcLoc)
{
  m_histoDataMgrSvc   = 0;
  m_histoPersSvc      = 0;
  m_incidentSvc       = 0;
  m_evtDataMgrSvc     = 0;
  m_evtDataSvc        = 0;
  m_evtSelector       = 0;
  m_evtContext       = 0;
  m_runNo            = -1.1;   
  // Declare properties
  declareProperty("HistogramPersistency", m_histPersName = "");
  declareProperty( "EvtSel", m_evtsel );
}

~OfflineEventLoopMgr()

OfflineEventLoopMgr::~OfflineEventLoopMgr ( )

virtual

Standard Destructor.

Definition at line 49 of file OfflineEventLoopMgr.cxx.

                                            {
  if( m_histoDataMgrSvc ) m_histoDataMgrSvc->release();
  if( m_histoPersSvc ) m_histoPersSvc->release();
  if( m_incidentSvc ) m_incidentSvc->release();
  if( m_evtDataMgrSvc ) m_evtDataMgrSvc->release();
  if( m_evtDataSvc ) m_evtDataSvc->release();
  if( m_evtSelector ) m_evtSelector->release();
  if( m_evtContext ) delete m_evtContext;
}

Member Function Documentation

executeEvent()

StatusCode OfflineEventLoopMgr::executeEvent ( void * par )

virtual

implementation of IEventProcessor::executeEvent(void* par)

Definition at line 281 of file OfflineEventLoopMgr.cxx.

                                                         {
   MsgStream log(msgSvc(), name());
  // Fire BeginEvent "Incident"
  m_incidentSvc->fireIncident(Incident(name(),IncidentType::BeginEvent));
  int runNo;
   SmartDataPtr<Event::EventHeader> evt(m_evtDataSvc,"/Event/EventHeader");
  if( evt ){
    runNo = evt -> runNumber();
    log << MSG::INFO <<"The runNumber of current event is  "<<runNo<<endreq;
  }
 
    else{
      log << MSG::ERROR << "Error accessing Event" <<endreq;
       return StatusCode::FAILURE;
     }
   if(runNo!=m_runNo) {
     log << MSG::INFO <<"fireIncident of begin run"<<endreq;
     m_incidentSvc->fireIncident(Incident(name(),"NewRun"));
     if(m_runNo==-1.1){
      ListAlg::iterator it_topAlg =  m_topAlgList.begin();
      for (;it_topAlg!=m_topAlgList.end();it_topAlg++){
       (*it_topAlg)->beginRun();}
      }
    m_runNo = runNo;    
   }
 
  // Execute Algorithms
  StatusCode sc = MinimalEventLoopMgr::executeEvent(par);
  // Fire EndEvent "Incident"
  m_incidentSvc->fireIncident(Incident(name(),IncidentType::EndEvent));
 
  // Check if there was an error processing current event
  if( !sc.isSuccess() ){
    MsgStream log( msgSvc(), name() );
    log << MSG::ERROR << "Terminating event processing loop due to errors" << endreq;
  }
 
  return sc;
}

Referenced by nextEvent().

executeRun()

StatusCode OfflineEventLoopMgr::executeRun ( int maxevt )

virtual

implementation of IEventProcessor::executeRun()

Definition at line 324 of file OfflineEventLoopMgr.cxx.

                                                          {
  StatusCode  sc;
  // initialize the base class
  sc = MinimalEventLoopMgr::executeRun(maxevt);
  return sc;
}

finalize()

StatusCode OfflineEventLoopMgr::finalize ( )

virtual

implementation of IService::finalize

Definition at line 213 of file OfflineEventLoopMgr.cxx.

                                            {
  StatusCode sc;
  MsgStream log(msgSvc(), name());
 
  // Finalize base class
  MinimalEventLoopMgr::finalize();
 
  // Save Histograms Now
  if ( 0 != m_histoPersSvc )    {
    HistogramAgent agent;
    sc = m_histoDataMgrSvc->traverseTree( &agent );
    if( sc.isSuccess() )   {
      IDataSelector* objects = agent.selectedObjects();
      // skip /stat entry!
      if ( objects->size() > 0 )    {
        IDataSelector::iterator i;
        for ( i = objects->begin(); i != objects->end(); i++ )    {
          IOpaqueAddress* pAddr = 0;
          StatusCode iret = m_histoPersSvc->createRep(*i, pAddr);
          if ( iret.isSuccess() )     {
            (*i)->registry()->setAddress(pAddr);
          }
          else  {
            sc = iret;
          }
        }
        for ( i = objects->begin(); i != objects->end(); i++ )    {
          IRegistry* reg = (*i)->registry();
          StatusCode iret = m_histoPersSvc->fillRepRefs(reg->address(), *i);
          if ( !iret.isSuccess() )    {
            sc = iret;
          }
        }
      }
      if ( sc.isSuccess() )    {
        log << MSG::INFO << "Histograms converted successfully according to request." << endreq;
      }
      else  {
        log << MSG::ERROR << "Error while saving Histograms." << endreq;
      }
    }
    else {
      log << MSG::ERROR << "Error while traversing Histogram data store" << endreq;
    }
  }
 
  // Release evemt selector context
  if ( m_evtSelector && m_evtContext )   {
    m_evtSelector->releaseContext(m_evtContext);
    m_evtContext = 0;
  }
 
  // Release all interfaces...
  m_histoDataMgrSvc = releaseInterface(m_histoDataMgrSvc);
  m_histoPersSvc    = releaseInterface(m_histoPersSvc);
 
  m_evtSelector     = releaseInterface(m_evtSelector);
  m_incidentSvc     = releaseInterface(m_incidentSvc);
  m_evtDataSvc      = releaseInterface(m_evtDataSvc);
  m_evtDataMgrSvc   = releaseInterface(m_evtDataMgrSvc);
 
  return StatusCode::SUCCESS;
}

getEventRoot()

StatusCode OfflineEventLoopMgr::getEventRoot

(

IOpaqueAddress *&

refpAddr

)

Create event address using event selector.

Definition at line 420 of file OfflineEventLoopMgr.cxx.

                                                                       {
  refpAddr = 0;
  StatusCode sc = m_evtSelector->next(*m_evtContext);
  if ( !sc.isSuccess() )  {
    return sc;
  }
  // Create root address and assign address to data service
  sc = m_evtSelector->createAddress(*m_evtContext,refpAddr);
  if( !sc.isSuccess() )  {
    sc = m_evtSelector->next(*m_evtContext);
    if ( sc.isSuccess() )  {
      sc = m_evtSelector->createAddress(*m_evtContext,refpAddr);
      if ( !sc.isSuccess() )  {
    MsgStream log( msgSvc(), name() );
    log << MSG::WARNING << "Error creating IOpaqueAddress." << endreq;
      }
    }
  }
  return sc;
}

Referenced by nextEvent().

initialize()

StatusCode OfflineEventLoopMgr::initialize ( )

virtual

implementation of IService::initalize

Definition at line 62 of file OfflineEventLoopMgr.cxx.

                                              {
  MsgStream log(msgSvc(), name());
 
  // initilaize the base class
  StatusCode sc = MinimalEventLoopMgr::initialize();
  if( !sc.isSuccess() ) {
    log << MSG::DEBUG << "Error Initializing base class MinimalEventLoopMgr." << endreq;
    return sc;
  }
 
  // Setup access to event data services
  sc = serviceLocator()->service("EventDataSvc", m_evtDataMgrSvc, true);
  if( !sc.isSuccess() )  {
    log << MSG::FATAL << "Error retrieving EventDataSvc interface IDataManagerSvc." << endreq;
    return sc;
  }
  sc = serviceLocator()->service("EventDataSvc", m_evtDataSvc, true);
  if( !sc.isSuccess() )  {
    log << MSG::FATAL << "Error retrieving EventDataSvc interface IDataProviderSvc." << endreq;
    return sc;
  }
 
  // Get the references to the services that are needed by the ApplicationMgr itself
  sc = serviceLocator()->service("IncidentSvc", m_incidentSvc, true);
  if( !sc.isSuccess() )  {
    log << MSG::FATAL << "Error retrieving IncidentSvc." << endreq;
    return sc;
  }
 
  // Obtain the IProperty of the ApplicationMgr
 // SmartIF<IProperty> prpMgr(IID_IProperty, serviceLocator());
 SmartIF<IProperty> prpMgr(serviceLocator());
  if ( ! prpMgr.isValid() )   {
    log << MSG::FATAL << "IProperty interface not found in ApplicationMgr." << endreq;
    return StatusCode::FAILURE;
  }
  else {
    m_appMgrProperty = prpMgr;
  }
 
  // We do not expect a Event Selector necessarily being declared
  setProperty(m_appMgrProperty->getProperty("EvtSel"));
 
  if( m_evtsel != "NONE" || m_evtsel.length() == 0) {
    sc = serviceLocator()->service( "EventSelector", m_evtSelector, true );
    if( sc.isSuccess() )     {
      // Setup Event Selector
      sc=m_evtSelector->createContext(m_evtContext);
      if( !sc.isSuccess() )   {
        log << MSG::FATAL << "Can not create the event selector Context." << endreq;
        return sc;
      }
    }
    else {
      log << MSG::FATAL << "EventSelector not found." << endreq;
      return sc;
    }
  }
  else {
    m_evtSelector = 0;
    m_evtContext = 0;
    log << MSG::WARNING << "Unable to locate service \"EventSelector\" " << endreq;    
    log << MSG::WARNING << "No events will be processed from external input." << endreq;    
  }
 
  // Setup access to histogramming services
  sc = serviceLocator()->service("HistogramDataSvc", m_histoDataMgrSvc, true);
  if( !sc.isSuccess() )  {
    log << MSG::FATAL << "Error retrieving HistogramDataSvc." << endreq;
    return sc;
  }
  // Setup histogram persistency
  sc = serviceLocator()->service("HistogramPersistencySvc", m_histoPersSvc, true );
  if( !sc.isSuccess() ) {
    log << MSG::WARNING << "Histograms cannot not be saved - though required." << endreq;
    return sc;
  }
 
  return StatusCode::SUCCESS;
}

nextEvent()

StatusCode OfflineEventLoopMgr::nextEvent ( int maxevt )

virtual

implementation of IService::nextEvent

Definition at line 334 of file OfflineEventLoopMgr.cxx.

                                                      {
  static int        total_nevt = 0;
  DataObject*       pObject = 0;
  StatusCode        sc;
  MsgStream         log( msgSvc(), name() );
 
  //yzhang add
  //begin run
/*  ListAlg::iterator it_topAlg =  m_topAlgList.begin();
  for (;it_topAlg!=m_topAlgList.end();it_topAlg++){
    (*it_topAlg)->beginRun();
  }*/
  //zhangy add
  // loop over events if the maxevt (received as input) if different from -1. 
  // if evtmax is -1 it means infinite loop
  for( int nevt = 0; (maxevt == -1 ? true : nevt < maxevt);  nevt++, total_nevt++) {
    // Check if there is a scheduled stop issued by some algorithm/sevice
    if ( m_scheduledStop ) {
      m_scheduledStop = false;
      log << MSG::ALWAYS << "Terminating event processing loop due to scheduled stop" << endreq;
      break;
    }
    // Clear the event store, if used in the event loop
    if( 0 != total_nevt ) {
      sc = m_evtDataMgrSvc->clearStore();
      if( !sc.isSuccess() )  {
        log << MSG::DEBUG << "Clear of Event data store failed" << endreq;
      }
    }
 
    // Setup event in the event store
    if( m_evtContext ) {
      IOpaqueAddress* addr = 0;
      // Only if there is a EventSelector
      sc = getEventRoot(addr);
      if( !sc.isSuccess() )  {
        log << MSG::INFO << "No more events in event selection " << endreq;
        break;
      }
      // Set root clears the event data store first
      sc = m_evtDataMgrSvc->setRoot ("/Event", addr);
      if( !sc.isSuccess() )  {
        log << MSG::WARNING << "Error declaring event root address." << endreq;
        continue;
      }
      // register event header for mc
      SmartDataPtr<Event::EventHeader> evt(m_evtDataSvc,"/Event/EventHeader");
      if(!evt) {
        sc = m_evtDataMgrSvc->registerAddress ("/Event/EventHeader", addr);
        if( !sc.isSuccess() )  {
          log << MSG::WARNING << "Error register EventHeader address." << endreq;
        }
      }
      sc = m_evtDataSvc->retrieveObject("/Event", pObject);
      if( !sc.isSuccess() ) {
        log << MSG::WARNING << "Unable to retrieve Event root object" << endreq;
        break;
      }
    }
    else {
      sc = m_evtDataMgrSvc->setRoot ("/Event", new DataObject());
      if( !sc.isSuccess() )  {
        log << MSG::WARNING << "Error declaring event root DataObject" << endreq;
      } 
    }
 
    
 
    // Execute event for all required algorithms
    sc = executeEvent(NULL);
    if( !sc.isSuccess() ){
      log << MSG::ERROR << "Terminating event processing loop due to errors" << endreq;
      break;
    }
  }
  //yzhang add
  //end run
  ListAlg::iterator it_topAlg =  m_topAlgList.begin();
  for (;it_topAlg!=m_topAlgList.end();it_topAlg++){
    (*it_topAlg)->endRun();
  }
  //zhangy add
  return StatusCode::SUCCESS;
}

reinitialize()

StatusCode OfflineEventLoopMgr::reinitialize ( )

virtual

implementation of IService::reinitalize

Definition at line 145 of file OfflineEventLoopMgr.cxx.

                                             {
  MsgStream log(msgSvc(), name());
 
  // initilaize the base class
  StatusCode sc = MinimalEventLoopMgr::reinitialize();
  if( !sc.isSuccess() ) {
    log << MSG::DEBUG << "Error Initializing base class MinimalEventLoopMgr." << endreq;
    return sc;
  }
 
  // Check to see whether a new Event Selector has been specified
  setProperty(m_appMgrProperty->getProperty("EvtSel"));
  if( m_evtsel != "NONE" || m_evtsel.length() == 0) {
    IEvtSelector* theEvtSel;
    IService*     theSvc;
    sc = serviceLocator()->service( "EventSelector", theEvtSel );
    sc = serviceLocator()->service( "EventSelector", theSvc );
    if( sc.isSuccess() && ( theEvtSel != m_evtSelector ) ) {
      // Setup Event Selector
      m_evtSelector = theEvtSel;
 //     if (theSvc->state() == IService::INITIALIZED) {
   if (theSvc->FSMState() == Gaudi::StateMachine::INITIALIZED) {
        sc = theSvc->reinitialize();
        if( !sc.isSuccess() ) {
          log << MSG::ERROR << "Failure Reinitializing EventSelector "
              << theSvc->name( ) << endreq;
          return sc;
        }
      } 
      else {
        sc = theSvc->initialize();
        if( !sc.isSuccess() ) {
          log << MSG::ERROR << "Failure Initializing EventSelector "
              << theSvc->name( ) << endreq;
          return sc;
        }
      }
      sc = m_evtSelector->createContext(m_evtContext);
      if( !sc.isSuccess() ) {
        log << MSG::ERROR << "Can not create Context "
            << theSvc->name( ) << endreq;
        return sc;
      }
      log << MSG::INFO << "EventSelector service changed to "
          << theSvc->name( ) << endreq;
    }
    else if ( m_evtSelector && m_evtContext )   {
      m_evtSelector->releaseContext(m_evtContext);
      m_evtContext = 0;
      sc = m_evtSelector->createContext(m_evtContext);
      if( !sc.isSuccess() ) {
        log << MSG::ERROR << "Can not create Context "
            << theSvc->name( ) << endreq;
        return sc;
      }
    }
  }
  else if ( m_evtSelector && m_evtContext )   {
    m_evtSelector->releaseContext(m_evtContext);
    m_evtSelector = 0;
    m_evtContext = 0;
  }
  return StatusCode::SUCCESS;
}

Friends And Related Symbol Documentation

SvcFactory< OfflineEventLoopMgr >

friend class SvcFactory< OfflineEventLoopMgr >

friend

Creator friend class.

Definition at line 1 of file OfflineEventLoopMgr.h.

Member Data Documentation

m_appMgrProperty

IProperty* OfflineEventLoopMgr::m_appMgrProperty

protected

Property interface of ApplicationMgr.

Definition at line 62 of file OfflineEventLoopMgr.h.

Referenced by initialize(), and reinitialize().

m_evtContext

IEvtSelector::Context* OfflineEventLoopMgr::m_evtContext

protected

Event Iterator.

Definition at line 52 of file OfflineEventLoopMgr.h.

Referenced by finalize(), getEventRoot(), initialize(), nextEvent(), reinitialize(), and ~OfflineEventLoopMgr().

m_evtDataMgrSvc

IDataManagerSvc* OfflineEventLoopMgr::m_evtDataMgrSvc

protected

Reference to the Event Data Service's IDataManagerSvc interface.

Definition at line 46 of file OfflineEventLoopMgr.h.

Referenced by finalize(), initialize(), nextEvent(), and ~OfflineEventLoopMgr().

m_evtDataSvc

IDataProviderSvc* OfflineEventLoopMgr::m_evtDataSvc

protected

Reference to the Event Data Service's IDataProviderSvc interface.

Definition at line 48 of file OfflineEventLoopMgr.h.

Referenced by executeEvent(), finalize(), initialize(), nextEvent(), and ~OfflineEventLoopMgr().

m_evtsel

std::string OfflineEventLoopMgr::m_evtsel

protected

Event selector.

Definition at line 54 of file OfflineEventLoopMgr.h.

Referenced by initialize(), and reinitialize().

m_evtSelector

IEvtSelector* OfflineEventLoopMgr::m_evtSelector

protected

Reference to the Event Selector.

Definition at line 50 of file OfflineEventLoopMgr.h.

Referenced by finalize(), getEventRoot(), initialize(), reinitialize(), and ~OfflineEventLoopMgr().

m_histoDataMgrSvc

IDataManagerSvc* OfflineEventLoopMgr::m_histoDataMgrSvc

protected

Reference to the Histogram Data Service.

Definition at line 56 of file OfflineEventLoopMgr.h.

Referenced by finalize(), initialize(), and ~OfflineEventLoopMgr().

m_histoPersSvc

IConversionSvc* OfflineEventLoopMgr::m_histoPersSvc

protected

Reference to the Histogram Persistency Service.

Definition at line 58 of file OfflineEventLoopMgr.h.

Referenced by finalize(), initialize(), and ~OfflineEventLoopMgr().

m_histPersName

std::string OfflineEventLoopMgr::m_histPersName

protected

Name of the Hist Pers type.

Definition at line 60 of file OfflineEventLoopMgr.h.

m_incidentSvc

IIncidentSvc* OfflineEventLoopMgr::m_incidentSvc

protected

Reference to the indicent service.

Definition at line 44 of file OfflineEventLoopMgr.h.

Referenced by executeEvent(), finalize(), initialize(), and ~OfflineEventLoopMgr().

---

The documentation for this class was generated from the following files:

• OfflineEventLoopMgr.h
• OfflineEventLoopMgr.cxx