python.hltResultMT.EDMCollection Class Reference

Collaboration diagram for python.hltResultMT.EDMCollection:

Public Member Functions
def	__init__ (self, name_vec, size_words, words=None)
def	__str__ (self)
def	name (self)
def	is_xAOD_interface_container (self)
def	is_xAOD_aux_container (self)
def	is_xAOD_decoration (self)
def	is_TP_container (self)
def	deserialise (self)

Public Attributes
	name_persistent
	name_key
	size_words
	size_bytes
	words
	parent

Detailed Description

A python representation of a serialised EDM collection

Definition at line 25 of file hltResultMT.py.

Constructor & Destructor Documentation

__init__()

def python.hltResultMT.EDMCollection.__init__	(		self,
			name_vec,
			size_words,
			words = None
	)

Definition at line 28 of file hltResultMT.py.

    def __init__(self, name_vec, size_words, words=None):
        self.name_persistent = name_vec[0]
        self.name_key = name_vec[1]
        self.size_words = size_words
        self.size_bytes = size_words*4
        self.words = words
        self.parent = None
 

Member Function Documentation

__str__()

def python.hltResultMT.EDMCollection.__str__

(

self

)

Definition at line 36 of file hltResultMT.py.

    def __str__(self):
        return '{:s}, Size: {:d} bytes'.format(self.name(), self.size_bytes)
 

deserialise()

def python.hltResultMT.EDMCollection.deserialise

(

self

)

Definition at line 59 of file hltResultMT.py.

    def deserialise(self):
        if not self.words:
            log.error('No payload stored, cannot deserialise')
            return None
 
        # Lazily import modules needed for deserialisation
        import cppyy
        import ROOT
        import array
        import struct
        from ctypes import c_uint
 
        # Reinterpret words: Python int list -> C unsigned int list -> C char (Python bytes) array
        cwords = [c_uint(w) for w in self.words]
        bwords = [struct.pack('@I',cw.value) for cw in cwords]
        bwords_merged = b''.join(bwords)
        bwords_array = array.array('b', bwords_merged)
 
        # ROOT deserialisation
        cltype = ROOT.RootType.ByNameNoQuiet(self.name_persistent)
        buffer = ROOT.TBufferFile(ROOT.TBuffer.kRead, len(bwords_array), bwords_array, False)
        obj_ptr = buffer.ReadObjectAny(cltype.Class())
        obj = cppyy.bind_object(obj_ptr, self.name_persistent)
        return obj
 
 

is_TP_container()

def python.hltResultMT.EDMCollection.is_TP_container

(

self

)

Definition at line 56 of file hltResultMT.py.

    def is_TP_container(self):
        return '_p' in self.name_persistent
 

is_xAOD_aux_container()

def python.hltResultMT.EDMCollection.is_xAOD_aux_container

(

self

)

Definition at line 48 of file hltResultMT.py.

    def is_xAOD_aux_container(self):
        return self.name_persistent.startswith('xAOD') and self.name_key.endswith('Aux.')
 

is_xAOD_decoration()

def python.hltResultMT.EDMCollection.is_xAOD_decoration

(

self

)

Definition at line 51 of file hltResultMT.py.

    def is_xAOD_decoration(self):
        return 'vector' in self.name_persistent and \
                    not self.is_xAOD_interface_container() and \
                    not self.is_xAOD_aux_container()
 

is_xAOD_interface_container()

def python.hltResultMT.EDMCollection.is_xAOD_interface_container

(

self

)

Definition at line 45 of file hltResultMT.py.

    def is_xAOD_interface_container(self):
        return self.name_persistent.startswith('xAOD') and not self.name_key.endswith('Aux.')
 

name()

def python.hltResultMT.EDMCollection.name

(

self

)

Definition at line 39 of file hltResultMT.py.

    def name(self):
        if not self.parent:
            return '{:s}#{:s}'.format(self.name_persistent, self.name_key)
        else:
            return '{:s}#{:s}{:s}'.format(self.name_persistent, self.parent.name_key, self.name_key)
 

Member Data Documentation

name_key

python.hltResultMT.EDMCollection.name_key

Definition at line 30 of file hltResultMT.py.

name_persistent

python.hltResultMT.EDMCollection.name_persistent

Definition at line 29 of file hltResultMT.py.

parent

python.hltResultMT.EDMCollection.parent

Definition at line 34 of file hltResultMT.py.

size_bytes

python.hltResultMT.EDMCollection.size_bytes

Definition at line 32 of file hltResultMT.py.

size_words

python.hltResultMT.EDMCollection.size_words

Definition at line 31 of file hltResultMT.py.

words

python.hltResultMT.EDMCollection.words

Definition at line 33 of file hltResultMT.py.

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The documentation for this class was generated from the following file:

• hltResultMT.py