def read_scenario(file):
# initialize inputs as empty (except network, this is always required)
templates, sources, fixed_instances = [], [], []
prev_embedding = defaultdict(list)
events = None
directory = os.path.dirname(file) # directory of the scenario file
with open(file, "r") as csvfile:
reader = csv.reader((row for row in csvfile if not row.startswith("#")), delimiter=" ")
for row in reader:
row = remove_empty_values(row) # deal with multiple spaces in a row leading to empty values
if len(row) > 1: # only consider rows with 1+ file name(s)
if row[0] == "network:":
path = os.path.join(directory, row[1]) # look in the same directory as the scenario file
# network = read_network(path)
network = read_network_vnmp(path)
# network = read_network_graphml(path, cpu=100, gpu=40, mem=500, dr=100)
nodes = network[0]
links = network[1]
elif row[0] == "templates:":
for template_file in row[1:]: # iterate over all templates, skipping the "templates:"
path = os.path.join(directory, template_file)
template = read_template(path)
templates.append(template)
templates = adapter.adapt_for_reuse(templates) # add ports etc on the fly
elif row[0] == "sources:":
# collect source components
source_components = set()
for t in templates:
source_components.update([j for j in t.components if j.source])
path = os.path.join(directory, row[1])
sources = read_sources(path, source_components)
elif row[0] == "fixed:":
# collect non-source components of used templates
possible_components = set()
for template in templates:
possible_components.update([j for j in template.components if not j.source])
path = os.path.join(directory, row[1])
fixed_instances = read_fixed_instances(path, possible_components)
elif row[0] == "prev_embedding:":
# collect all components
components = set()
for t in templates:
components.update(t.components)
path = os.path.join(directory, row[1])
prev_embedding = read_prev_embedding(path, components)
elif row[0] == "events:":
# set path to events-file
events = os.path.join(directory, row[1])
# return nodes, links, templates, sources, fixed_instances, prev_embedding, events
return nodes, links, templates, sources, fixed_instances, prev_embedding, events
def read_event(file, event_no, templates, sources, fixed):
directory = os.path.dirname(file) # directory of the scenario file
with open(file, "r") as csvfile:
reader = csv.reader(
(row
for row in csvfile if not row.startswith("#") and len(row) > 1),
delimiter=" ")
# continue reading from file_position
events = list(reader)
event_row = events[event_no]
event_row = remove_empty_values(
event_row
) # deal with multiple spaces in a row leading to empty values
# handle event and update corresponding input
if event_row[0] == "templates:":
print("Update templates: {}\n".format(event_row[1:]))
templates = []
for template_file in event_row[
1:]: # iterate over all templates, skipping the "templates:"
path = os.path.join(directory, template_file)
template = read_template(path)
templates.append(template)
templates = adapter.adapt_for_reuse(
templates) # add ports etc on the fly
elif event_row[0] == "sources:":
print("Update sources: {}\n".format(event_row[1]))
# collect source components
source_components = set()
for t in templates:
source_components.update([j for j in t.components if j.source])
path = os.path.join(directory, event_row[1])
sources = read_sources(path, source_components)
elif event_row[0] == "fixed:":
print("Update fixed instances: {}\n".format(event_row[1]))
# collect non-source components of used templates
possible_components = set()
for template in templates:
possible_components.update(
[j for j in template.components if not j.source])
path = os.path.join(directory, event_row[1])
fixed = read_fixed_instances(path, possible_components)
# fixed = read_fixed_instances(path)
else:
print("Event not recognized (=> ignore): {}".format(event_row))
# increment to next row number if it exists; if the last row is reached, set row_no to None
event_no += 1
if event_no >= len(events):
event_no = None
return event_no, event_row, templates, sources, fixed