def transform_event_log_to_trace_log(
log,
case_glue=log_util.CASE_ATTRIBUTE_GLUE,
includes_case_attributes=True,
case_attribute_prefix=log_util.CASE_ATTRIBUTE_PREFIX):
"""
Converts the event log to a trace log
Parameters
----------
log: :class:`pm4py.log.log.EventLog`
An event Log
case_glue:
Case identifier. Default is 'case:concept:name'
includes_case_attributes:
Default is True
case_attribute_prefix:
Default is 'case:'
Returns
-------
log : :class:`pm4py.log.log.TraceLog`
A trace log
"""
traces = {}
for event in log:
glue = event[case_glue]
if glue not in traces:
trace_attr = {}
if includes_case_attributes:
for k in event.keys():
if k.startswith(case_attribute_prefix):
trace_attr[k.replace(case_attribute_prefix,
'')] = event[k]
traces[glue] = log_instance.Trace(attributes=trace_attr)
if includes_case_attributes:
for k in list(event.keys()):
if k.startswith(case_attribute_prefix):
del event[k]
traces[glue].append(event)
return log_instance.TraceLog(traces.values(),
attributes=log.attributes,
classifiers=log.classifiers,
omni_present=log.omni_present,
extensions=log.extensions)
def apply_playout(net, initial_marking, no_traces=100, max_trace_length=100):
"""
Do the playout of a Petrinet generating a log
Parameters
----------
net
Petri net to play-out
initial_marking
Initial marking of the Petri net
no_traces
Number of traces to generate
max_trace_length
Maximum number of events per trace (do break)
"""
log = log_instance.TraceLog()
for i in range(no_traces):
trace = log_instance.Trace()
trace.attributes["concept:name"] = str(i)
marking = copy(initial_marking)
for j in range(100000):
if not semantics.enabled_transitions(net, marking):
break
all_enabled_trans = semantics.enabled_transitions(net, marking)
all_enabled_trans = list(all_enabled_trans)
shuffle(all_enabled_trans)
trans = all_enabled_trans[0]
if trans.label is not None:
event = log_instance.Event()
event["concept:name"] = trans.label
trace.append(event)
marking = semantics.execute(trans, net, marking)
if len(trace) > max_trace_length:
break
if len(trace) > 0:
log.append(trace)
return log