DBImportTBC.py

#!/usr/bin/env python
 
 
 
# --------------------------------------------------------------------------------
# Example of using Database importer for importing TBC constants to local database
# User has to set the path to TOPTimeBaseCalibrator output files correctly
# Name and location of local DB can also be changed
# --------------------------------------------------------------------------------
 
import basf2 as b2
from ROOT import Belle2  # noqa: make Belle2 namespace available
from ROOT.Belle2 import TOPDatabaseImporter
import sys
import glob
 
# define local database with write access
b2.conditions.expert_settings(save_payloads="localDB/localDB.txt")
 
# get a list of root files containing calibration constants
folder_name = 'tbc'  # location of output files from TOPTimeBaseCalibrator
fNames = glob.glob(folder_name + '/*.root')
if len(fNames) == 0:
    print('No root files found in', folder_name)
    sys.exit()
 
# convert the list to a single string
fileNames = ''
for fName in fNames:
    fileNames = fileNames + ' ' + fName
 
 
class PayloadImporter(b2.Module):
    ''' Payload importer using TOPDatabaseImporter '''
 
    def initialize(self):
        ''' Import timebase calibration '''
 
        dbImporter = TOPDatabaseImporter()
        dbImporter.importSampleTimeCalibration(fileNames)
 
 
# create path
main = b2.create_path()
 
# Event info setter - execute single event
main.add_module('EventInfoSetter')
 
# Gearbox
main.add_module('Gearbox')
 
# Geometry parameters
main.add_module('TOPGeometryParInitializer', useDB=False)
 
# Importer
main.add_module(PayloadImporter())
 
# process single event
b2.process(main)