blob: 5114871b8197e2ad35ef4a2df7991e1dec8394c2 [file] [log] [blame]
# Copyright 2017-present Open Networking Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import random
from xos.exceptions import XOSValidationError
from models_decl import VOLTService_decl
from models_decl import VOLTServiceInstance_decl, VOLTServiceInstance
from models_decl import OLTDevice_decl
from models_decl import PortBase_decl, PortBase
from models_decl import PONPort_decl, PONPort
from models_decl import NNIPort_decl, NNIPort
from models_decl import ONUDevice_decl
from models_decl import ANIPort_decl, ANIPort
from models_decl import UNIPort_decl, UNIPort
from models_decl import TechnologyProfile_decl
from django.core.exceptions import ObjectDoesNotExist
import json
class VOLTService(VOLTService_decl):
class Meta:
proxy = True
@staticmethod
def has_access_device(serial_number):
try:
ONUDevice.objects.get(serial_number=serial_number)
return True
except IndexError, e:
return False
def get_olt_technology_from_unu_sn(self, onu_sn):
"""
Return the technology assigned to an OLT Device given and ONU Serial Number
example usage:
volt = VOLTService.objects.first()
sn = volt.get_olt_technology_from_unu_sn("BRCM12345678")
# "XGSPON"
Arguments:
onu_sn {string} -- The ONU Serial Number
Returns:
string -- Technology
"""
try:
onu = ONUDevice.objects.get(serial_number=onu_sn)
olt = onu.pon_port.olt_device
return olt.technology
except ObjectDoesNotExist:
raise XOSNotFound("Can't find OLT for %s" % onu_sn, serial_number=onu_sn)
def get_tech_profile(self, technology, profile_id):
"""
Returns a Technology profiles or raise an Exception (DoesNotExist)
:param technology: string
:param profile_id: int
:return: TechnologyProfile
"""
return TechnologyProfile.objects.get(technology=technology, profile_id=profile_id)
class OLTDevice(OLTDevice_decl):
class Meta:
proxy = True
def get_volt_si(self):
return VOLTServiceInstance.objects.all()
def save(self, *args, **kwargs):
if (self.host or self.port) and self.mac_address:
raise XOSValidationError("You can't specify both host/port and mac_address for OLTDevice [host=%s, port=%s, mac_address=%s]" % (self.host, self.port, self.mac_address))
super(OLTDevice, self).save(*args, **kwargs)
def delete(self, *args, **kwargs):
onus = []
pon_ports = self.pon_ports.all()
for port in pon_ports:
onus = onus + list(port.onu_devices.all())
if len(onus) > 0:
onus = [o.id for o in onus]
# find the ONUs used by VOLTServiceInstances
used_onus = [o.onu_device_id for o in self.get_volt_si()]
# find the intersection between the onus associated with this OLT and the used one
used_onus_to_delete = [o for o in onus if o in used_onus]
if len(used_onus_to_delete) > 0:
if hasattr(self, "device_id") and self.device_id:
item = self.device_id
elif hasattr(self, "name") and self.name:
item = self.name
else:
item = self.id
raise XOSValidationError('OLT "%s" can\'t be deleted as it has subscribers associated with its ONUs' % item)
super(OLTDevice, self).delete(*args, **kwargs)
class ONUDevice(ONUDevice_decl):
class Meta:
proxy = True
def delete(self, *args, **kwargs):
if len(self.volt_service_instances.all()) > 0:
raise XOSValidationError('ONU "%s" can\'t be deleted as it has subscribers associated with it' % self.serial_number)
super(ONUDevice, self).delete(*args, **kwargs)
class TechnologyProfile(TechnologyProfile_decl):
class Meta:
proxy = True
def save(self, *args, **kwargs):
caller_kind = None
if "caller_kind" in kwargs:
caller_kind = kwargs.get("caller_kind")
# only synchronizer is allowed to update the model
if not self.is_new and caller_kind != "synchronizer":
if not self.deleted:
existing = TechnologyProfile.objects.filter(id=self.id)
raise XOSValidationError('Modification operation is not allowed on Technology Profile [/%s/%s]. Delete it and add again' % (existing[0].technology, existing[0].profile_id))
# validate if technology profile value is valid JSON format string
if self.profile_value != None:
try:
tp_json_val = json.loads(self.profile_value)
except ValueError as e:
raise XOSValidationError('Technology Profile value not in valid JSON format')
super(TechnologyProfile, self).save(*args, **kwargs)