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"""dsc_datatool.transformer.net_remap
See `man dsc-datatool-transformer netremap`.
Part of dsc_datatool.
:copyright: 2024 OARC, Inc.
"""
import ipaddress
from dsc_datatool import Transformer, args
class NetRemap(Transformer):
v4net = None
v6net = None
nonstrict = False
def __init__(self, opts):
Transformer.__init__(self, opts)
net = opts.get('net', None)
self.v4net = opts.get('v4net', net)
self.v6net = opts.get('v6net', net)
if not self.v4net:
raise Exception('v4net (or net) must be given')
if not self.v6net:
raise Exception('v6net (or net) must be given')
if opts.get('nonstrict', False):
self.nonstrict = True
def _process(self, dimension):
if not dimension.values:
for d2 in dimension.dimensions:
self._process(d2)
return
values = dimension.values
dimension.values = {}
for k, v in values.items():
if k == args.skipped_key:
continue
elif k == args.skipped_sum_key:
dimension.values['0'] = v
continue
try:
ip = ipaddress.ip_address(k)
except Exception as e:
if not self.nonstrict:
raise e
continue
if ip.version == 4:
nkey = str(ipaddress.IPv4Network('%s/%s' % (ip, self.v4net), strict=False).network_address)
else:
nkey = str(ipaddress.IPv6Network('%s/%s' % (ip, self.v6net), strict=False).network_address)
if not nkey in dimension.values:
dimension.values[nkey] = v
else:
dimension.values[nkey] += v
def process(self, datasets):
for dataset in datasets:
for dimension in dataset.dimensions:
self._process(dimension)
import sys
if sys.version_info[0] == 3 and sys.version_info[1] == 5: # pragma: no cover
Transformer.__init_subclass__(NetRemap)
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