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writing json results from path_requests_run.py into csv

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Signed-off-by: EstherLerouzic <esther.lerouzic@orange.com>
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EstherLerouzic
2018-09-03 15:10:32 +01:00
parent 3d8ac83fcc
commit c943e0e9b4
1 changed files with 93 additions and 0 deletions
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examples/write_path_jsontocsv.py Normal file
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#!/usr/bin/env python3
# TelecomInfraProject/gnpy/examples
# Module name : write_path_jsontoxls.py
# Version :
# License : BSD 3-Clause Licence
# Copyright (c) 2018, Telecom Infra Project
"""
@author: esther.lerouzic
read json path result file in accordance with:
Yang model for requesting Path Computation
draft-ietf-teas-yang-path-computation-01.txt.
and write results in an CSV file
"""
from sys import exit
from csv import writer
from argparse import ArgumentParser
from pathlib import Path
from json import dumps, loads
from gnpy.core.equipment import load_equipment
from gnpy.core.utils import lin2db
START_LINE = 5
parser = ArgumentParser(description = 'A function that writes json path results in an excel sheet.')
parser.add_argument('filename', nargs='?', type = Path)
parser.add_argument('eqpt_filename', nargs='?', type = Path)
parser.add_argument('output_filename', nargs='?', type = Path)
if __name__ == '__main__':
args = parser.parse_args()
print(f'coucou {args.output_filename}')
with open(args.output_filename,"w") as file :
mywriter = writer(file)
mywriter.writerow(('path-id','source','destination','transponder-type',\
'transponder-mode','baud rate (Gbaud)', 'input power (dBm)','path','OSNR@bandwidth','OSNR@0.1nm','SNR@bandwidth','SNR@0.1nm','Pass?'))
with open(args.filename) as f:
json_data = loads(f.read())
equipment = load_equipment(args.eqpt_filename)
tspjsondata = equipment['Transceiver']
#print(tspjsondata)
for p in json_data['path']:
path_id = int(p['path-id'])
source = p['path-properties']['path-route-objects'][0]\
['path-route-object']['unnumbered-hop']['node-id']
destination = p['path-properties']['path-route-objects'][-1]\
['path-route-object']['unnumbered-hop']['node-id']
pth = ' | '.join([ e['path-route-object']['unnumbered-hop']['node-id']
for e in p['path-properties']['path-route-objects']])
[tsp,mode] = p['path-properties']['path-route-objects'][0]\
['path-route-object']['unnumbered-hop']['hop-type'].split(' - ')
# find the min acceptable OSNR, baud rate from the eqpt library based on tsp (tupe) and mode (format)
try:
[minosnr, baud_rate] = next([m['OSNR'] , m['baud_rate']]
for m in equipment['Transceiver'][tsp].mode if m['format']==mode)
# for debug
# print(f'coucou {baud_rate}')
except IndexError:
msg = f'could not find tsp : {self.tsp} with mode: {self.tsp_mode} in eqpt library'
raise ValueError(msg)
output_snr = next(e['accumulative-value']
for e in p['path-properties']['path-metric'] if e['metric-type'] == 'SNR@0.1nm')
output_snrbandwidth = next(e['accumulative-value']
for e in p['path-properties']['path-metric'] if e['metric-type'] == 'SNR@bandwidth')
output_osnr = next(e['accumulative-value']
for e in p['path-properties']['path-metric'] if e['metric-type'] == 'OSNR@0.1nm')
output_osnrbandwidth = next(e['accumulative-value']
for e in p['path-properties']['path-metric'] if e['metric-type'] == 'OSNR@bandwidth')
power = next(e['accumulative-value']
for e in p['path-properties']['path-metric'] if e['metric-type'] == 'reference_power')
mywriter.writerow((path_id,
source,
destination,
tsp,
mode,
baud_rate*1e-9,
round(lin2db(power)+30,2),
pth,
output_osnrbandwidth,
output_osnr,
output_snrbandwidth,
output_snr,
output_snr >= minosnr
))