def si(nch_and_spacing, bw):
"""parametrize a channel comb with nb_channel, spacing and signal bw"""
nb_channel, spacing = nch_and_spacing
f_min = 191.3e12
f_max = automatic_fmax(f_min, spacing, nb_channel)
return create_input_spectral_information(f_min, f_max, 0.15, bw, 1e-3,
spacing)
def requests_from_json(json_data, equipment):
"""Extract list of requests from data parsed from JSON"""
requests_list = []
for req in json_data['path-request']:
# init all params from request
params = {}
params['request_id'] = req['request-id']
params['source'] = req['source']
params['bidir'] = req['bidirectional']
params['destination'] = req['destination']
params['trx_type'] = req['path-constraints']['te-bandwidth']['trx_type']
params['trx_mode'] = req['path-constraints']['te-bandwidth']['trx_mode']
params['format'] = params['trx_mode']
params['spacing'] = req['path-constraints']['te-bandwidth']['spacing']
try:
nd_list = req['explicit-route-objects']['route-object-include-exclude']
except KeyError:
nd_list = []
params['nodes_list'] = [n['num-unnum-hop']['node-id'] for n in nd_list]
params['loose_list'] = [n['num-unnum-hop']['hop-type'] for n in nd_list]
# recover trx physical param (baudrate, ...) from type and mode
# in trx_mode_params optical power is read from equipment['SI']['default'] and
# nb_channel is computed based on min max frequency and spacing
trx_params = trx_mode_params(equipment, params['trx_type'], params['trx_mode'], True)
params.update(trx_params)
# print(trx_params['min_spacing'])
# optical power might be set differently in the request. if it is indicated then the
# params['power'] is updated
try:
if req['path-constraints']['te-bandwidth']['output-power']:
params['power'] = req['path-constraints']['te-bandwidth']['output-power']
except KeyError:
pass
# same process for nb-channel
f_min = params['f_min']
f_max_from_si = params['f_max']
try:
if req['path-constraints']['te-bandwidth']['max-nb-of-channel'] is not None:
nch = req['path-constraints']['te-bandwidth']['max-nb-of-channel']
params['nb_channel'] = nch
spacing = params['spacing']
params['f_max'] = automatic_fmax(f_min, spacing, nch)
else:
params['nb_channel'] = automatic_nch(f_min, f_max_from_si, params['spacing'])
except KeyError:
params['nb_channel'] = automatic_nch(f_min, f_max_from_si, params['spacing'])
_check_one_request(params, f_max_from_si)
try:
params['path_bandwidth'] = req['path-constraints']['te-bandwidth']['path_bandwidth']
except KeyError:
pass
requests_list.append(PathRequest(**params))
return requests_list