AthenaPoolExample_WriteMeta.py

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#!/env/python
 
# Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
 

 
import os
os.system ('rm -f Catalog2.xml')
 
from AthenaConfiguration.AllConfigFlags import initConfigFlags
from AthenaConfiguration.ComponentFactory import CompFactory
from AthenaCommon.Constants import DEBUG
 
outputFileName = "ROOTTREE:SimplePoolFile5.root"
outputStreamName = "ExampleMeta"
noTag = True
 
# Setup flags
flags = initConfigFlags()
flags.Input.Files = []
flags.addFlag(f"Output.{outputStreamName}FileName", outputFileName)
flags.Exec.MaxEvents = 10
flags.Common.MsgSuppression = False
flags.Exec.DebugMessageComponents = ["PoolSvc", "AthenaPoolCnvSvc","AthenaPoolAddressProviderSvc", "MetaDataSvc"]
flags.lock()
 
# Main services
from AthenaConfiguration.MainServicesConfig import MainServicesCfg
acc = MainServicesCfg( flags )    
 
from xAODEventInfoCnv.xAODEventInfoCnvConfig import EventInfoCnvAlgCfg
acc.merge( EventInfoCnvAlgCfg( flags, disableBeamSpot=True ) )
 
from AthenaPoolExampleAlgorithms.AthenaPoolExampleConfig import AthenaPoolExampleWriteCfg
acc.merge( AthenaPoolExampleWriteCfg( flags, outputStreamName,
                                      writeCatalog = "file:Catalog2.xml",
                                      disableEventTag = noTag ) )
 
# Creata and attach the algorithms
acc.addEventAlgo( CompFactory.AthPoolEx.WriteData("WriteData", OutputLevel = DEBUG) )
acc.addEventAlgo( CompFactory.AthPoolEx.WriteCond("WriteCond",
                                                  DetStore = acc.getService("MetaDataStore"),
                                                  ConditionName = "PedestalWriteData",
                                                  OutputLevel = DEBUG) )
 
from OutputStreamAthenaPool.OutputStreamConfig import OutputStreamCfg
acc.merge( OutputStreamCfg( flags, outputStreamName, disableEventTag = noTag,
                            ItemList = ["EventInfo#*", "ExampleHitContainer#MyHits"],
                            MetadataItemList = ["ExampleHitContainer#PedestalWriteData"],
                            ) )
 
# Run
import sys
sc = acc.run(flags.Exec.MaxEvents)
sys.exit(sc.isFailure())