EventIDFromStore.cxx File Reference

#include "EventInfoUtils/EventIDFromStore.h"
#include "GaudiKernel/EventContext.h"
#include "AthenaKernel/EventContextClid.h"
#include "AthenaKernel/IProxyDict.h"
#include "SGTools/DataProxy.h"
#include "EventInfo/EventID.h"
#include "EventInfo/EventInfo.h"

Include dependency graph for EventIDFromStore.cxx:

Go to the source code of this file.

Functions
const EventIDBase *	EventIDFromStore (IProxyDict *store)
	Retrieve the EventID from EventContext saved in store STORE. More...

Function Documentation

EventIDFromStore()

const EventIDBase* EventIDFromStore

(

IProxyDict *

store

)

Retrieve the EventID from EventContext saved in store STORE.

Parameters

store

The store from which to retrieve the EventID, or nullptr.

If there is no context recorded in the store, return nullptr

Definition at line 15 of file EventIDFromStore.cxx.

{
   if( store ) {
      //MN: FIX:  is this OK to have it static in case of multiple Stores?
      static const SG::sgkey_t ctxkey = store->stringToKey( "EventContext", ClassID_traits<EventContext>::ID() );
      SG::DataProxy* proxy = store->proxy_exact(ctxkey);
      if( proxy && proxy->object() ) {
         return & SG::DataProxy_cast<EventContext>( proxy )->eventID();
      }
 
      // Check for EventInfo
      proxy = store->proxy( ClassID_traits<EventInfo>::ID(), "" );
      if( proxy && proxy->object() ) {
         return SG::DataProxy_cast<EventInfo>( proxy )->event_ID();
      }
      
    }
   return nullptr;
}