python.hltResultMT Namespace Reference

Classes
class	EDMCollection

Functions
def	get_collection_name (raw_data_words)
def	get_collection_payload (raw_data_words)
def	get_collections (rob, skip_payload=False)

Variables
	log
	_string_serialiser
	SizeWord
	CLIDOffset
	NameLengthOffset
	NameOffset

Function Documentation

get_collection_name()

def python.hltResultMT.get_collection_name

(

raw_data_words

)

Extract type+name words from the full collection raw data and convert to string

Definition at line 85 of file hltResultMT.py.

def get_collection_name(raw_data_words):
    '''Extract type+name words from the full collection raw data and convert to string'''
 
    # Use Python bindings of C++ StringSerialiser to deserialise collection type and name.
    # Doing the tuple-conversion here has a big performance impact. Probably this could be
    # further improved if the eformat had better support for u32slice iterators.
 
    nw = raw_data_words[NameLengthOffset]
    name_words = tuple(raw_data_words[NameOffset:NameOffset+nw])
    return _string_serialiser.deserialize(name_words)
 
 

get_collection_payload()

def python.hltResultMT.get_collection_payload

(

raw_data_words

)

Extract the serialised collection payload from the full collection raw data

Definition at line 97 of file hltResultMT.py.

def get_collection_payload(raw_data_words):
    '''Extract the serialised collection payload from the full collection raw data'''
 
    name_size = raw_data_words[NameLengthOffset]
    payload_start = NameOffset + name_size + 1
    return raw_data_words[payload_start:]
 
 

get_collections()

def python.hltResultMT.get_collections	(		rob,
			skip_payload = False
	)

Extract a list of EDMCollection objects from the HLT ROBFragment.
If skip_payload=True, only the information about type, name and size
are kept but the payload is discarded to improve performance.

Definition at line 105 of file hltResultMT.py.

def get_collections(rob, skip_payload=False):
    '''
    Extract a list of EDMCollection objects from the HLT ROBFragment.
    If skip_payload=True, only the information about type, name and size
    are kept but the payload is discarded to improve performance.
    '''
 
    start = SizeWord
    collections = []
    last_aux_cont = None
    rod_size = len(rob.rod_data())
    while start < rod_size:
        size = rob.rod_data()[start+SizeWord]
        coll_name = get_collection_name(rob.rod_data()[start:start+size])
        words = None if skip_payload else get_collection_payload(rob.rod_data()[start:start+size])
        coll = EDMCollection(coll_name, size, words)
        if coll.is_xAOD_aux_container():
            last_aux_cont = coll
        if coll.is_xAOD_decoration():
            coll.parent = last_aux_cont
        collections.append(coll)
        start += size
    return collections

Variable Documentation

_string_serialiser

python.hltResultMT._string_serialiser

private

Definition at line 16 of file hltResultMT.py.

CLIDOffset

python.hltResultMT.CLIDOffset

Definition at line 20 of file hltResultMT.py.

log

python.hltResultMT.log

Definition at line 13 of file hltResultMT.py.

NameLengthOffset

python.hltResultMT.NameLengthOffset

Definition at line 21 of file hltResultMT.py.

NameOffset

python.hltResultMT.NameOffset

Definition at line 22 of file hltResultMT.py.

SizeWord

python.hltResultMT.SizeWord

Definition at line 19 of file hltResultMT.py.