Write.py

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from Configurables import Gaudi__RootCnvSvc as RootCnvSvc
from Configurables import GaudiPersistency
from Configurables import GaudiTesting__EvenEventsFilter as EvenFilter
from Configurables import GaudiTesting__OddEventsFilter as OddFilter
from Configurables import GaudiTesting__PutDataObjectAlg as DataCreator
from Gaudi.Configuration import *
 
# create data in the TES
creator = DataCreator("DataCreator")
creator.Paths = ["A", "B", "C", "D"]
 
# Filter algorithms
oddEvts = OddFilter("OddEvents")
evenEvts = EvenFilter("EvenEvents")
 
# Output setup
# - DST
stream = OutputStream()
stream.Output = (
    "DATAFILE='PFN:ConditionalOutput.dst'  SVC='Gaudi::RootCnvSvc' OPT='RECREATE'"
)
# stream.ItemList = ['A', 'B', 'C']
stream.AlgDependentItemList[oddEvts.name()] = ["/Event/A#1", "/Event/B#1"]
stream.AlgDependentItemList[evenEvts.name()] = ["/Event/A#1", "/Event/C#1"]
 
FileCatalog(Catalogs=["xmlcatalog_file:ConditionalOutput.xml"])
 
# Output Levels
MessageSvc(OutputLevel=VERBOSE)
IncidentSvc(OutputLevel=DEBUG)
RootCnvSvc(OutputLevel=INFO)
 
GaudiPersistency()
 
# Application setup
app = ApplicationMgr()
# - I/O
app.OutStream += [stream]
# - Algorithms
app.TopAlg = [creator, oddEvts, evenEvts]
# - Events
app.EvtMax = 10
app.EvtSel = "NONE"  # do not use any event input
app.HistogramPersistency = "NONE"