def test_json_response_generation(xls_input, expected_response_file):
""" tests if json response is correctly generated for all combinations of requests
"""
data = convert_service_sheet(xls_input, eqpt_filename)
equipment = load_equipment(eqpt_filename)
network = load_network(xls_input, equipment)
p_db = equipment['SI']['default'].power_dbm
p_total_db = p_db + lin2db(automatic_nch(equipment['SI']['default'].f_min,\
equipment['SI']['default'].f_max, equipment['SI']['default'].spacing))
build_network(network, equipment, p_db, p_total_db)
rqs = requests_from_json(data, equipment)
rqs = correct_route_list(network, rqs)
dsjn = disjunctions_from_json(data)
dsjn = correct_disjn(dsjn)
rqs, dsjn = requests_aggregation(rqs, dsjn)
pths = compute_path_dsjctn(network, equipment, rqs, dsjn)
propagatedpths = compute_path_with_disjunction(network, equipment, rqs, pths)
result = []
for i, pth in enumerate(propagatedpths):
result.append(Result_element(rqs[i], pth))
temp = {
'response': [n.json for n in result]
}
# load expected result and compare keys
# (not values at this stage)
with open(expected_response_file) as jsonfile:
expected = load(jsonfile)
for i, response in enumerate(temp['response']):
assert compare_response(expected['response'][i], response)
def test_auto_design_generation_fromxlsgainmode(xls_input,
expected_json_output):
equipment = load_equipment(eqpt_filename)
network = load_network(xls_input, equipment)
# in order to test the Eqpt sheet and load gain target, change the power-mode to False (to be in gain mode)
equipment['Span']['default'].power_mode = False
# Build the network once using the default power defined in SI in eqpt config
p_db = equipment['SI']['default'].power_dbm
p_total_db = p_db + lin2db(automatic_nch(equipment['SI']['default'].f_min,\
equipment['SI']['default'].f_max, equipment['SI']['default'].spacing))
build_network(network, equipment, p_db, p_total_db)
save_network(xls_input, network)
actual_json_output = f'{str(xls_input)[0:len(str(xls_input))-4]}_auto_design.json'
with open(actual_json_output, encoding='utf-8') as f:
actual = load(f)
unlink(actual_json_output)
with open(expected_json_output, encoding='utf-8') as f:
expected = load(f)
results = compare_networks(expected, actual)
assert not results.elements.missing
assert not results.elements.extra
assert not results.elements.different
assert not results.connections.missing
assert not results.connections.extra
assert not results.connections.different
def propagation(input_power, con_in, con_out,dest):
equipment = load_equipment(eqpt_library_name)
network = load_network(network_file_name,equipment)
build_network(network, equipment, 0, 20)
# parametrize the network elements with the con losses and adapt gain
# (assumes all spans are identical)
for e in network.nodes():
if isinstance(e, Fiber):
loss = e.loss_coef * e.length
e.con_in = con_in
e.con_out = con_out
if isinstance(e, Edfa):
e.operational.gain_target = loss + con_in + con_out
transceivers = {n.uid: n for n in network.nodes() if isinstance(n, Transceiver)}
p = input_power
p = db2lin(p) * 1e-3
spacing = 50e9 # THz
si = create_input_spectral_information(191.3e12, 191.3e12+79*spacing, 0.15, 32e9, p, spacing)
source = next(transceivers[uid] for uid in transceivers if uid == 'trx A')
sink = next(transceivers[uid] for uid in transceivers if uid == dest)
path = dijkstra_path(network, source, sink)
for el in path:
si = el(si)
print(el) # remove this line when sweeping across several powers
edfa_sample = next(el for el in path if isinstance(el, Edfa))
nf = mean(edfa_sample.nf)
print(f'pw: {input_power} conn in: {con_in} con out: {con_out}',
f'[email protected]: {round(mean(sink.osnr_ase_01nm),2)}',
f'SNR@bandwitdth: {round(mean(sink.snr),2)}')
return sink , nf
def test_disjunction(net,eqpt,serv):
data = load_requests(serv, eqpt, bidir=False)
equipment = load_equipment(eqpt)
network = load_network(net,equipment)
# Build the network once using the default power defined in SI in eqpt config
# power density : db2linp(ower_dbm": 0)/power_dbm": 0 * nb channels as defined by
# spacing, f_min and f_max
p_db = equipment['SI']['default'].power_dbm
p_total_db = p_db + lin2db(automatic_nch(equipment['SI']['default'].f_min,\
equipment['SI']['default'].f_max, equipment['SI']['default'].spacing))
build_network(network, equipment, p_db, p_total_db)
build_oms_list(network, equipment)
rqs = requests_from_json(data, equipment)
rqs = correct_route_list(network, rqs)
dsjn = disjunctions_from_json(data)
pths = compute_path_dsjctn(network, equipment, rqs, dsjn)
print(dsjn)
dsjn_list = [d.disjunctions_req for d in dsjn ]
# assumes only pairs in dsjn list
test = True
for e in dsjn_list:
rqs_id_list = [r.request_id for r in rqs]
p1 = pths[rqs_id_list.index(e[0])][1:-1]
p2 = pths[rqs_id_list.index(e[1])][1:-1]
if isdisjoint(p1, p2) + isdisjoint(p1, find_reversed_path(p2)) > 0:
test = False
print(f'Computed path (roadms):{[e.uid for e in p1 if isinstance(e, Roadm)]}\n')
print(f'Computed path (roadms):{[e.uid for e in p2 if isinstance(e, Roadm)]}\n')
break
print(dsjn_list)
assert test
def setup_trx():
"""init transceiver class to access snr and osnr calculations"""
equipment = load_equipment(eqpt_library)
network = load_network(test_network, equipment)
build_network(network, equipment, 0, 20)
trx = [n for n in network.nodes() if isinstance(n, Transceiver)][0]
return trx
def setup_edfa_fixed_gain():
"""init edfa class by reading the 2nd edfa in test_network.json file"""
equipment = load_equipment(eqpt_library)
network = load_network(test_network, equipment)
build_network(network, equipment, 0, 20)
edfa = [n for n in network.nodes() if isinstance(n, Edfa)][1]
yield edfa
def test_does_not_loop_back(net, eqpt, serv):
data = load_requests(serv, eqpt)
equipment = load_equipment(eqpt)
network = load_network(net, equipment)
# Build the network once using the default power defined in SI in eqpt config
# power density : db2linp(ower_dbm": 0)/power_dbm": 0 * nb channels as defined by
# spacing, f_min and f_max
p_db = equipment['SI']['default'].power_dbm
p_total_db = p_db + lin2db(automatic_nch(equipment['SI']['default'].f_min,\
equipment['SI']['default'].f_max, equipment['SI']['default'].spacing))
build_network(network, equipment, p_db, p_total_db)
rqs = requests_from_json(data, equipment)
rqs = correct_route_list(network, rqs)
dsjn = disjunctions_from_json(data)
pths = compute_path_dsjctn(network, equipment, rqs, dsjn)
# check that computed paths do not loop back ie each element appears only once
test = True
for p in pths:
for el in p:
p.remove(el)
a = [e for e in p if e.uid == el.uid]
if a:
test = False
break
assert test
def test_csv_response_generation(json_input, csv_output):
""" tests if generated csv is consistant with expected generation
same columns (order not important)
"""
with open(json_input) as jsonfile:
json_data = load(jsonfile)
equipment = load_equipment(eqpt_filename)
csv_filename = str(csv_output)+'.csv'
with open(csv_filename, 'w', encoding='utf-8') as fcsv:
jsontocsv(json_data, equipment, fcsv)
expected_csv_filename = str(csv_output)+'_expected.csv'
# expected header
# csv_header = \
# [
# 'response-id',
# 'source',
# 'destination',
# 'path_bandwidth',
# 'Pass?',
# 'nb of tsp pairs',
# 'total cost',
# 'transponder-type',
# 'transponder-mode',
# 'OSNR-0.1nm',
# 'SNR-0.1nm',
# 'SNR-bandwidth',
# 'baud rate (Gbaud)',
# 'input power (dBm)',
# 'path'
# ]
resp = read_csv(csv_filename)
unlink(csv_filename)
expected_resp = read_csv(expected_csv_filename)
resp_header = list(resp.head(0))
expected_resp_header = list(expected_resp.head(0))
# check that headers are the same
resp_header.sort()
expected_resp_header.sort()
print('headers are differents')
print(resp_header)
print(expected_resp_header)
assert resp_header == expected_resp_header
# for each header checks that the output are as expected
resp.sort_values(by=['response-id'])
expected_resp.sort_values(by=['response-id'])
for column in expected_resp:
assert list(resp[column].fillna('')) == list(expected_resp[column].fillna(''))
print('results are different')
print(list(resp[column]))
print(list(expected_resp[column]))
print(type(list(resp[column])[-1]))
def setup_edfa_variable_gain():
"""init edfa class by reading test_network.json file
remove all gain and nf ripple"""
equipment = load_equipment(eqpt_library)
network = load_network(test_network, equipment)
build_network(network, equipment,0, 20)
edfa = [n for n in network.nodes() if isinstance(n, Edfa)][0]
edfa.gain_ripple = zeros(96)
edfa.interpol_nf_ripple = zeros(96)
yield edfa
def test_automaticmodefeature(net, eqpt, serv, expected_mode):
data = load_requests(serv, eqpt, bidir=False)
equipment = load_equipment(eqpt)
network = load_network(net, equipment)
# Build the network once using the default power defined in SI in eqpt config
# power density : db2linp(ower_dbm": 0)/power_dbm": 0 * nb channels as defined by
# spacing, f_min and f_max
p_db = equipment['SI']['default'].power_dbm
p_total_db = p_db + lin2db(automatic_nch(equipment['SI']['default'].f_min,\
equipment['SI']['default'].f_max, equipment['SI']['default'].spacing))
build_network(network, equipment, p_db, p_total_db)
rqs = requests_from_json(data, equipment)
rqs = correct_route_list(network, rqs)
dsjn = []
pths = compute_path_dsjctn(network, equipment, rqs, dsjn)
path_res_list = []
for i, pathreq in enumerate(rqs):
# use the power specified in requests but might be different from the one specified for design
# the power is an optional parameter for requests definition
# if optional, use the one defines in eqt_config.json
p_db = lin2db(pathreq.power * 1e3)
p_total_db = p_db + lin2db(pathreq.nb_channel)
print(f'request {pathreq.request_id}')
print(f'Computing path from {pathreq.source} to {pathreq.destination}')
print(f'with path constraint: {[pathreq.source]+pathreq.nodes_list}'
) #adding first node to be clearer on the output
total_path = pths[i]
print(
f'Computed path (roadms):{[e.uid for e in total_path if isinstance(e, Roadm)]}\n'
)
# for debug
# print(f'{pathreq.baud_rate} {pathreq.power} {pathreq.spacing} {pathreq.nb_channel}')
if pathreq.baud_rate is not None:
print(pathreq.format)
path_res_list.append(pathreq.format)
total_path = propagate(total_path, pathreq, equipment)
else:
total_path, mode = propagate_and_optimize_mode(
total_path, pathreq, equipment)
# if no baudrate satisfies spacing, no mode is returned and an empty path is returned
# a warning is shown in the propagate_and_optimize_mode
if mode is not None:
print(mode['format'])
path_res_list.append(mode['format'])
else:
print('nok')
path_res_list.append('nok')
print(path_res_list)
assert path_res_list == expected_mode
def equipment():
"""init transceiver class to access snr and osnr calculations"""
equipment = load_equipment(EQPT_LIBRARY_NAME)
# define some booster and preamps
restrictions_list = [{
'type_variety': 'booster_medium_gain',
'type_def': 'variable_gain',
'gain_flatmax': 25,
'gain_min': 15,
'p_max': 21,
'nf_min': 5.8,
'nf_max': 10,
'out_voa_auto': False,
'allowed_for_design': False
}, {
'type_variety': 'preamp_medium_gain',
'type_def': 'variable_gain',
'gain_flatmax': 26,
'gain_min': 15,
'p_max': 23,
'nf_min': 6,
'nf_max': 10,
'out_voa_auto': False,
'allowed_for_design': False
}, {
'type_variety': 'preamp_high_gain',
'type_def': 'variable_gain',
'gain_flatmax': 35,
'gain_min': 25,
'p_max': 21,
'nf_min': 5.5,
'nf_max': 7,
'out_voa_auto': False,
'allowed_for_design': False
}, {
'type_variety': 'preamp_low_gain',
'type_def': 'variable_gain',
'gain_flatmax': 16,
'gain_min': 8,
'p_max': 23,
'nf_min': 6.5,
'nf_max': 11,
'out_voa_auto': False,
'allowed_for_design': False
}]
# add them to the library
for entry in restrictions_list:
equipment['Edfa'][entry['type_variety']] = Amp.from_json(
EQPT_LIBRARY_NAME, **entry)
return equipment
def test_no_amp_feature(node_uid):
''' Check that booster is not placed on a roadm if fused is specified
test_parser covers partly this behaviour. This test should guaranty that the
feature is preserved even if convert is changed
'''
equipment = load_equipment(EQPT_LIBRARY_NAME)
json_network = load_json(NETWORK_FILE_NAME)
for elem in json_network['elements']:
if elem['uid'] == node_uid:
#replace edfa node by a fused node in the topology
elem['type'] = 'Fused'
elem.pop('type_variety')
elem.pop('operational')
elem['params'] = {'loss': 0}
next_node_uid = next(conn['to_node'] for conn in json_network['connections'] \
if conn['from_node'] == node_uid)
previous_node_uid = next(conn['from_node'] for conn in json_network['connections'] \
if conn['to_node'] == node_uid)
network = network_from_json(json_network, equipment)
# Build the network once using the default power defined in SI in eqpt config
# power density : db2linp(ower_dbm": 0)/power_dbm": 0 * nb channels as defined by
# spacing, f_min and f_max
p_db = equipment['SI']['default'].power_dbm
p_total_db = p_db + lin2db(automatic_nch(equipment['SI']['default'].f_min,\
equipment['SI']['default'].f_max, equipment['SI']['default'].spacing))
build_network(network, equipment, p_db, p_total_db)
node = next(nd for nd in network.nodes() if nd.uid == node_uid)
next_node = next(network.successors(node))
previous_node = next(network.predecessors(node))
if not isinstance(node, Fused):
raise AssertionError()
if not node.params.loss == 0.0:
raise AssertionError()
if not next_node_uid == next_node.uid:
raise AssertionError()
if not previous_node_uid == previous_node.uid:
raise AssertionError()
def main(args):
""" main function that calls all functions
"""
LOGGER.info(
f'Computing path requests {args.service_filename} into JSON format')
print('\x1b[1;34;40m' +\
f'Computing path requests {args.service_filename} into JSON format'+ '\x1b[0m')
# for debug
# print( args.eqpt_filename)
try:
data = load_requests(args.service_filename, args.eqpt_filename,
args.bidir)
equipment = load_equipment(args.eqpt_filename)
network = load_network(args.network_filename, equipment)
except EquipmentConfigError as this_e:
print(
f'{ansi_escapes.red}Configuration error in the equipment library:{ansi_escapes.reset} {this_e}'
)
exit(1)
except NetworkTopologyError as this_e:
print(
f'{ansi_escapes.red}Invalid network definition:{ansi_escapes.reset} {this_e}'
)
exit(1)
except ConfigurationError as this_e:
print(
f'{ansi_escapes.red}Configuration error:{ansi_escapes.reset} {this_e}'
)
exit(1)
except ServiceError as this_e:
print(f'{ansi_escapes.red}Service error:{ansi_escapes.reset} {this_e}')
exit(1)
# input_str = raw_input("How will you use your program: c:[cli] , a:[api] ?")
# print(input_str)
#
if ((args.rest == 1) and (args.output is None)):
print('you have chosen the rest mode')
APP.run(host='0.0.0.0', port=5000, debug=True)
elif ((args.rest > 1) or ((args.rest == 1) and (args.output is not None))):
print('command is not well formulated')
else:
launch_cli(network, data, equipment)
def post(self):
data = request.get_json()
equipment = load_equipment('examples/2019-demo-equipment.json')
topo_json = load_json('examples/2019-demo-topology.json')
network = network_from_json(topo_json, equipment)
try:
propagatedpths, reversed_propagatedpths, rqs = compute_requests(
network, data, equipment)
# Generate the output
result = []
#assumes that list of rqs and list of propgatedpths have same order
for i, pth in enumerate(propagatedpths):
result.append(
Result_element(rqs[i], pth, reversed_propagatedpths[i]))
return {"result": path_result_json(result)}, 201
except ServiceError as this_e:
msg = f'Service error: {this_e}'
return {"result": msg}, 400
def main(args):
""" main function that calls all functions
"""
LOGGER.info(
f'Computing path requests {args.service_filename} into JSON format')
print('\x1b[1;34;40m' +\
f'Computing path requests {args.service_filename} into JSON format'+ '\x1b[0m')
# for debug
# print( args.eqpt_filename)
try:
data = load_requests(args.service_filename, args.eqpt_filename,
args.bidir)
equipment = load_equipment(args.eqpt_filename)
network = load_network(args.network_filename, equipment)
except EquipmentConfigError as this_e:
print(
f'{ansi_escapes.red}Configuration error in the equipment library:{ansi_escapes.reset} {this_e}'
)
exit(1)
except NetworkTopologyError as this_e:
print(
f'{ansi_escapes.red}Invalid network definition:{ansi_escapes.reset} {this_e}'
)
exit(1)
except ConfigurationError as this_e:
print(
f'{ansi_escapes.red}Configuration error:{ansi_escapes.reset} {this_e}'
)
exit(1)
except ServiceError as this_e:
print(f'{ansi_escapes.red}Service error:{ansi_escapes.reset} {this_e}')
exit(1)
# Build the network once using the default power defined in SI in eqpt config
# TODO power density: db2linp(ower_dbm": 0)/power_dbm": 0 * nb channels as defined by
# spacing, f_min and f_max
p_db = equipment['SI']['default'].power_dbm
p_total_db = p_db + lin2db(automatic_nch(equipment['SI']['default'].f_min,\
equipment['SI']['default'].f_max, equipment['SI']['default'].spacing))
build_network(network, equipment, p_db, p_total_db)
save_network(args.network_filename, network)
oms_list = build_oms_list(network, equipment)
try:
rqs = requests_from_json(data, equipment)
except ServiceError as this_e:
print(f'{ansi_escapes.red}Service error:{ansi_escapes.reset} {this_e}')
exit(1)
# check that request ids are unique. Non unique ids, may
# mess the computation: better to stop the computation
all_ids = [r.request_id for r in rqs]
if len(all_ids) != len(set(all_ids)):
for item in list(set(all_ids)):
all_ids.remove(item)
msg = f'Requests id {all_ids} are not unique'
LOGGER.critical(msg)
exit()
try:
rqs = correct_route_list(network, rqs)
except ServiceError as this_e:
print(f'{ansi_escapes.red}Service error:{ansi_escapes.reset} {this_e}')
exit(1)
# pths = compute_path(network, equipment, rqs)
dsjn = disjunctions_from_json(data)
print('\x1b[1;34;40m' + f'List of disjunctions' + '\x1b[0m')
print(dsjn)
# need to warn or correct in case of wrong disjunction form
# disjunction must not be repeated with same or different ids
dsjn = correct_disjn(dsjn)
# Aggregate demands with same exact constraints
print('\x1b[1;34;40m' + f'Aggregating similar requests' + '\x1b[0m')
rqs, dsjn = requests_aggregation(rqs, dsjn)
# TODO export novel set of aggregated demands in a json file
print('\x1b[1;34;40m' + 'The following services have been requested:' +
'\x1b[0m')
print(rqs)
print('\x1b[1;34;40m' + f'Computing all paths with constraints' +
'\x1b[0m')
try:
pths = compute_path_dsjctn(network, equipment, rqs, dsjn)
except DisjunctionError as this_e:
print(
f'{ansi_escapes.red}Disjunction error:{ansi_escapes.reset} {this_e}'
)
exit(1)
print('\x1b[1;34;40m' + f'Propagating on selected path' + '\x1b[0m')
propagatedpths, reversed_pths, reversed_propagatedpths = \
compute_path_with_disjunction(network, equipment, rqs, pths)
# Note that deepcopy used in compute_path_with_disjunction returns
# a list of nodes which are not belonging to network (they are copies of the node objects).
# so there can not be propagation on these nodes.
pth_assign_spectrum(pths, rqs, oms_list, reversed_pths)
print('\x1b[1;34;40m' + f'Result summary' + '\x1b[0m')
header = ['req id', ' demand', ' snr@bandwidth A-Z (Z-A)', ' [email protected] A-Z (Z-A)',\
' Receiver minOSNR', ' mode', ' Gbit/s', ' nb of tsp pairs',\
'N,M or blocking reason']
data = []
data.append(header)
for i, this_p in enumerate(propagatedpths):
rev_pth = reversed_propagatedpths[i]
if rev_pth and this_p:
psnrb = f'{round(mean(this_p[-1].snr),2)} ({round(mean(rev_pth[-1].snr),2)})'
psnr = f'{round(mean(this_p[-1].snr_01nm), 2)}' +\
f' ({round(mean(rev_pth[-1].snr_01nm),2)})'
elif this_p:
psnrb = f'{round(mean(this_p[-1].snr),2)}'
psnr = f'{round(mean(this_p[-1].snr_01nm),2)}'
try:
if rqs[i].blocking_reason in BLOCKING_NOPATH:
line = [f'{rqs[i].request_id}', f' {rqs[i].source} to {rqs[i].destination} :',\
f'-', f'-', f'-', f'{rqs[i].tsp_mode}', f'{round(rqs[i].path_bandwidth * 1e-9,2)}',\
f'-', f'{rqs[i].blocking_reason}']
else:
line = [f'{rqs[i].request_id}', f' {rqs[i].source} to {rqs[i].destination} : ', psnrb,\
psnr, f'-', f'{rqs[i].tsp_mode}', f'{round(rqs[i].path_bandwidth * 1e-9, 2)}',\
f'-', f'{rqs[i].blocking_reason}']
except AttributeError:
line = [f'{rqs[i].request_id}', f' {rqs[i].source} to {rqs[i].destination} : ', psnrb,\
psnr, f'{rqs[i].OSNR}', f'{rqs[i].tsp_mode}', f'{round(rqs[i].path_bandwidth * 1e-9,2)}',\
f'{ceil(rqs[i].path_bandwidth / rqs[i].bit_rate) }', f'({rqs[i].N},{rqs[i].M})']
data.append(line)
col_width = max(len(word) for row in data for word in row[2:]) # padding
firstcol_width = max(len(row[0]) for row in data) # padding
secondcol_width = max(len(row[1]) for row in data) # padding
for row in data:
firstcol = ''.join(row[0].ljust(firstcol_width))
secondcol = ''.join(row[1].ljust(secondcol_width))
remainingcols = ''.join(
word.center(col_width, ' ') for word in row[2:])
print(f'{firstcol} {secondcol} {remainingcols}')
print('\x1b[1;33;40m'+f'Result summary shows mean SNR and OSNR (average over all channels)' +\
'\x1b[0m')
if args.output:
result = []
# assumes that list of rqs and list of propgatedpths have same order
for i, pth in enumerate(propagatedpths):
result.append(
Result_element(rqs[i], pth, reversed_propagatedpths[i]))
temp = path_result_json(result)
fnamecsv = f'{str(args.output)[0:len(str(args.output))-len(str(args.output.suffix))]}.csv'
fnamejson = f'{str(args.output)[0:len(str(args.output))-len(str(args.output.suffix))]}.json'
with open(fnamejson, 'w', encoding='utf-8') as fjson:
fjson.write(
dumps(path_result_json(result), indent=2, ensure_ascii=False))
with open(fnamecsv, "w", encoding='utf-8') as fcsv:
jsontocsv(temp, equipment, fcsv)
print('\x1b[1;34;40m' +
f'saving in {args.output} and {fnamecsv}' + '\x1b[0m')
def test_json_response_generation(xls_input, expected_response_file):
""" tests if json response is correctly generated for all combinations of requests
"""
data = convert_service_sheet(xls_input, eqpt_filename)
# change one of the request with bidir option to cover bidir case as well
data['path-request'][2]['bidirectional'] = True
equipment = load_equipment(eqpt_filename)
network = load_network(xls_input, equipment)
p_db = equipment['SI']['default'].power_dbm
p_total_db = p_db + lin2db(automatic_nch(equipment['SI']['default'].f_min,\
equipment['SI']['default'].f_max, equipment['SI']['default'].spacing))
build_network(network, equipment, p_db, p_total_db)
oms_list = build_oms_list(network, equipment)
rqs = requests_from_json(data, equipment)
rqs = correct_route_list(network, rqs)
dsjn = disjunctions_from_json(data)
dsjn = correct_disjn(dsjn)
rqs, dsjn = requests_aggregation(rqs, dsjn)
pths = compute_path_dsjctn(network, equipment, rqs, dsjn)
propagatedpths, reversed_pths, reversed_propagatedpths = \
compute_path_with_disjunction(network, equipment, rqs, pths)
pth_assign_spectrum(pths, rqs, oms_list, reversed_pths)
result = []
for i, pth in enumerate(propagatedpths):
# test ServiceError handling : when M is zero at this point, the
# json result should not be created if there is no blocking reason
if i == 1:
my_rq = deepcopy(rqs[i])
my_rq.M = 0
with pytest.raises(ServiceError):
Result_element(my_rq, pth, reversed_propagatedpths[i]).json
my_rq.blocking_reason = 'NO_SPECTRUM'
Result_element(my_rq, pth, reversed_propagatedpths[i]).json
result.append(Result_element(rqs[i], pth, reversed_propagatedpths[i]))
temp = {'response': [n.json for n in result]}
# load expected result and compare keys and values
with open(expected_response_file) as jsonfile:
expected = load(jsonfile)
# since we changes bidir attribute of request#2, need to add the corresponding
# metric in response
for i, response in enumerate(temp['response']):
if i == 2:
# compare response must be False because z-a metric is missing
# (request with bidir option to cover bidir case)
assert not compare_response(expected['response'][i], response)
print(f'response {response["response-id"]} should not match')
expected['response'][2]['path-properties']['z-a-path-metric'] = [{
'metric-type':
'SNR-bandwidth',
'accumulative-value':
22.809999999999999
}, {
'metric-type':
'SNR-0.1nm',
'accumulative-value':
26.890000000000001
}, {
'metric-type':
'OSNR-bandwidth',
'accumulative-value':
26.239999999999998
}, {
'metric-type':
'OSNR-0.1nm',
'accumulative-value':
30.32
}, {
'metric-type':
'reference_power',
'accumulative-value':
0.0012589254117941673
}, {
'metric-type':
'path_bandwidth',
'accumulative-value':
60000000000.0
}]
# test should be OK now
else:
assert compare_response(expected['response'][i], response)
print(f'response {response["response-id"]} is not correct')
Reads JSON path result file in accordance with the Yang model for requesting
path computation and writes results to a CSV file.
See: draft-ietf-teas-yang-path-computation-01.txt
"""
from argparse import ArgumentParser
from pathlib import Path
from json import loads
from gnpy.core.equipment import load_equipment
from gnpy.core.request import jsontocsv
parser = ArgumentParser(description = 'A function that writes json path results in an excel sheet.')
parser.add_argument('filename', nargs='?', type = Path)
parser.add_argument('output_filename', nargs='?', type = Path)
parser.add_argument('eqpt_filename', nargs='?', type = Path, default=Path(__file__).parent / 'eqpt_config.json')
if __name__ == '__main__':
args = parser.parse_args()
with open(args.output_filename, 'w', encoding='utf-8') as file:
with open(args.filename, encoding='utf-8') as f:
print(f'Reading {args.filename}')
json_data = loads(f.read())
equipment = load_equipment(args.eqpt_filename)
print(f'Writing in {args.output_filename}')
jsontocsv(json_data,equipment,file)
parser.add_argument('-v', '--verbose', action='count', default=0, help='increases verbosity for each occurence')
parser.add_argument('-l', '--list-nodes', action='store_true', help='list all transceiver nodes')
parser.add_argument('-po', '--power', default=0, help='channel ref power in dBm')
parser.add_argument('-names', '--names-matching', action='store_true', help='display network names that are closed matches')
parser.add_argument('filename', nargs='?', type=Path,
default=Path(__file__).parent / 'edfa_example_network.json')
parser.add_argument('source', nargs='?', help='source node')
parser.add_argument('destination', nargs='?', help='destination node')
if __name__ == '__main__':
args = parser.parse_args()
basicConfig(level={0: ERROR, 1: INFO, 2: DEBUG}.get(args.verbose, DEBUG))
try:
equipment = load_equipment(args.equipment)
network = load_network(args.filename, equipment, args.names_matching)
sim_params = load_sim_params(args.sim_params) if args.sim_params is not None else None
except EquipmentConfigError as e:
print(f'{ansi_escapes.red}Configuration error in the equipment library:{ansi_escapes.reset} {e}')
exit(1)
except NetworkTopologyError as e:
print(f'{ansi_escapes.red}Invalid network definition:{ansi_escapes.reset} {e}')
exit(1)
except ConfigurationError as e:
print(f'{ansi_escapes.red}Configuration error:{ansi_escapes.reset} {e}')
exit(1)
if args.plot:
plot_baseline(network)
def __init__(self, Request, eqpt_filename):
# request_id is str
# excel has automatic number formatting that adds .0 on integer values
# the next lines recover the pure int value, assuming this .0 is unwanted
if not isinstance(Request.request_id, str):
value = str(int(Request.request_id))
if value.endswith('.0'):
value = value[:-2]
self.request_id = value
else:
self.request_id = Request.request_id
self.source = Request.source
self.destination = Request.destination
self.srctpid = f'trx {Request.source}'
self.dsttpid = f'trx {Request.destination}'
# test that trx_type belongs to eqpt_config.json
# if not replace it with a default
equipment = load_equipment(eqpt_filename)
try:
if equipment['Transceiver'][Request.trx_type]:
self.trx_type = Request.trx_type
if [
mode
for mode in equipment['Transceiver'][Request.trx_type].mode
]:
self.mode = Request.mode
except KeyError:
msg = f'could not find tsp : {Request.trx_type} with mode: {Request.mode} in eqpt library \nComputation stopped.'
#print(msg)
logger.critical(msg)
exit()
# excel input are in GHz and dBm
self.spacing = Request.spacing * 1e9
self.power = db2lin(Request.power) * 1e-3
self.nb_channel = int(Request.nb_channel)
if not isinstance(Request.disjoint_from, str):
value = str(int(Request.disjoint_from))
if value.endswith('.0'):
value = value[:-2]
else:
value = Request.disjoint_from
self.disjoint_from = [n for n in value.split()]
self.nodes_list = []
if Request.nodes_list:
self.nodes_list = Request.nodes_list.split(' | ')
try:
self.nodes_list.remove(self.source)
msg = f'{self.source} removed from explicit path node-list'
logger.info(msg)
# print(msg)
except ValueError:
msg = f'{self.source} already removed from explicit path node-list'
logger.info(msg)
# print(msg)
try:
self.nodes_list.remove(self.destination)
msg = f'{self.destination} removed from explicit path node-list'
logger.info(msg)
# print(msg)
except ValueError:
msg = f'{self.destination} already removed from explicit path node-list'
logger.info(msg)
# print(msg)
self.loose = 'loose'
if Request.is_loose == 'no':
self.loose = 'strict'
def __init__(self, Request, eqpt_filename):
# request_id is str
# excel has automatic number formatting that adds .0 on integer values
# the next lines recover the pure int value, assuming this .0 is unwanted
self.request_id = correct_xlrd_int_to_str_reading(Request.request_id)
self.source = Request.source
self.destination = Request.destination
# TODO: the automatic naming generated by excel parser requires that source and dest name
# be a string starting with 'trx' : this is manually added here.
self.srctpid = f'trx {Request.source}'
self.dsttpid = f'trx {Request.destination}'
# test that trx_type belongs to eqpt_config.json
# if not replace it with a default
equipment = load_equipment(eqpt_filename)
try:
if equipment['Transceiver'][Request.trx_type]:
self.trx_type = correct_xlrd_int_to_str_reading(
Request.trx_type)
if Request.mode is not None:
Requestmode = correct_xlrd_int_to_str_reading(Request.mode)
if [
mode for mode in equipment['Transceiver']
[Request.trx_type].mode if mode['format'] == Requestmode
]:
self.mode = Requestmode
else:
msg = f'Request Id: {self.request_id} - could not find tsp : \'{Request.trx_type}\' with mode: \'{Requestmode}\' in eqpt library \nComputation stopped.'
#print(msg)
logger.critical(msg)
exit(1)
else:
Requestmode = None
self.mode = Request.mode
except KeyError:
msg = f'Request Id: {self.request_id} - could not find tsp : \'{Request.trx_type}\' with mode: \'{Requestmode}\' in eqpt library \nComputation stopped.'
#print(msg)
logger.critical(msg)
exit()
# excel input are in GHz and dBm
if Request.spacing is not None:
self.spacing = Request.spacing * 1e9
else:
msg = f'Request {self.request_id} missing spacing: spacing is mandatory.\ncomputation stopped'
logger.critical(msg)
exit()
if Request.power is not None:
self.power = db2lin(Request.power) * 1e-3
else:
self.power = None
if Request.nb_channel is not None:
self.nb_channel = int(Request.nb_channel)
else:
self.nb_channel = None
value = correct_xlrd_int_to_str_reading(Request.disjoint_from)
self.disjoint_from = [n for n in value.split(' | ') if value]
self.nodes_list = []
if Request.nodes_list:
self.nodes_list = Request.nodes_list.split(' | ')
# cleaning the list of nodes to remove source and destination
# (because the remaining of the program assumes that the nodes list are nodes
# on the path and should not include source and destination)
try:
self.nodes_list.remove(self.source)
msg = f'{self.source} removed from explicit path node-list'
logger.info(msg)
except ValueError:
msg = f'{self.source} already removed from explicit path node-list'
logger.info(msg)
try:
self.nodes_list.remove(self.destination)
msg = f'{self.destination} removed from explicit path node-list'
logger.info(msg)
except ValueError:
msg = f'{self.destination} already removed from explicit path node-list'
logger.info(msg)
# the excel parser applies the same hop-type to all nodes in the route nodes_list.
# user can change this per node in the generated json
self.loose = 'loose'
if Request.is_loose == 'no':
self.loose = 'strict'
self.path_bandwidth = None
if Request.path_bandwidth is not None:
self.path_bandwidth = Request.path_bandwidth * 1e9
else:
self.path_bandwidth = 0