## Critical:  Must be done before RecExCommon_topOptions!  But not in UserAlgs[].
## This is important for jets rerunning.
## It completely removes the standard jet configuration.

from JetRec.JetRecFlags import jetFlags

jetFlags.noStandardConfig = True
jetFlags.doBTagging = False
jetFlags.inputFileType.set_Value('AOD') #ESD')
#jetFlags.inputFileType.set_Value('GEN')

## Required to build truth jets from GEN_EVENT collection in EVGEN, since the container TruthParticleContainer_p5_INav4MomTruthEvent that's present in ESD is not there.

print "Before TruthParticleBuilder:", theApp.TopAlg

from McParticleAlgs.JobOptCfg import createTruthParticlesBuilder
jettruthinput = createTruthParticlesBuilder(
    name = "EsdTruthParticlesBuilder", #"TruthParticlesBuilder", #"EsdTruthParticlesBuilder",
    inMcEvtCollection = "GEN_AOD", #None, #"GEN_EVENT",
    outTruthParticles = "INav4MomTruthEvent" #"SpclMC" #"INav4MomTruthEvent"
    )
from AthenaCommon.AlgSequence import AlgSequence
topSequence = AlgSequence()
topSequence += jettruthinput