File indexing completed on 2024-04-06 12:23:29
0001 import collections
0002 from ROOT import TChain
0003
0004 class Event(object):
0005 '''Event class.
0006
0007 The Looper passes the Event object to each of its Analyzers,
0008 which in turn can:
0009 - read some information
0010 - add more information
0011 - modify existing information.
0012
0013 Attributes:
0014 iEv = event processing index, starting at 0
0015 eventWeight = a weight, set to 1 at the beginning of the processing
0016 input = input, as determined by the looper
0017 #TODO: provide a clear interface for access control (put, get, del products) - we should keep track of the name and id of the analyzer.
0018 '''
0019
0020 def __init__(self, iEv, input_data=None, setup=None, eventWeight=1 ):
0021 self.iEv = iEv
0022 self.input = input_data
0023 self.setup = setup
0024 self.eventWeight = eventWeight
0025
0026 def __str__(self):
0027 header = '{type}: {iEv}'.format( type=self.__class__.__name__,
0028 iEv = self.iEv)
0029 varlines = []
0030 for var,value in sorted(vars(self.items())):
0031 tmp = value
0032
0033 recursive = False
0034 if hasattr(value, '__getitem__') and \
0035 not isinstance(value, collections.Mapping) and \
0036 (len(value)>0 and value[0].__class__ == value.__class__):
0037 recursive = True
0038 if hasattr(value, '__contains__') and \
0039 not isinstance(value, (str,unicode)) and \
0040 not isinstance(value, TChain) and \
0041 not recursive :
0042 tmp = map(str, value)
0043
0044 varlines.append( '\t{var:<15}: {value}'.format(var=var, value=tmp) )
0045 all = [ header ]
0046 all.extend(varlines)
0047 return '\n'.join( all )
