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124 lines
4.6 KiB
124 lines
4.6 KiB
from typing import Optional, AnyStr
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from jsonfield import JSONField
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from django.db import models
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from django.shortcuts import resolve_url
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from django.utils.translation import gettext_lazy as _
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from djing.fields import MACAddressField
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from djing.lib import MyChoicesAdapter
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from group_app.models import Group
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from . import dev_types
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from .base_intr import DevBase
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class DeviceDBException(Exception):
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pass
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class DeviceMonitoringException(Exception):
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pass
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class Device(models.Model):
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_cached_manager = None
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ip_address = models.GenericIPAddressField(verbose_name=_('Ip address'), null=True, blank=True)
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mac_addr = MACAddressField(verbose_name=_('Mac address'), null=True, blank=True, unique=True)
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comment = models.CharField(_('Comment'), max_length=256)
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DEVICE_TYPES = (
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('Dl', dev_types.DLinkDevice),
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('Pn', dev_types.OLTDevice),
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('On', dev_types.OnuDevice),
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('Ex', dev_types.EltexSwitch),
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('Zt', dev_types.Olt_ZTE_C320),
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('Zo', dev_types.ZteOnuDevice)
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)
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devtype = models.CharField(_('Device type'), max_length=2, default=DEVICE_TYPES[0][0],
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choices=MyChoicesAdapter(DEVICE_TYPES))
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man_passw = models.CharField(_('SNMP password'), max_length=16, null=True, blank=True)
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group = models.ForeignKey(Group, on_delete=models.SET_NULL, null=True, blank=True, verbose_name=_('Device group'))
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parent_dev = models.ForeignKey('self', verbose_name=_('Parent device'), blank=True, null=True,
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on_delete=models.SET_NULL)
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snmp_extra = models.CharField(_('SNMP extra info'), max_length=256, null=True, blank=True)
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extra_data = JSONField(verbose_name=_('Extra data'),
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help_text=_('Extra data in JSON format. You may use it for your custom data'),
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blank=True, null=True)
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NETWORK_STATES = (
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('und', _('Undefined')),
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('up', _('Up')),
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('unr', _('Unreachable')),
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('dwn', _('Down'))
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)
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status = models.CharField(_('Status'), max_length=3, choices=NETWORK_STATES, default='und')
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is_noticeable = models.BooleanField(_('Send notify when monitoring state changed'), default=False)
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class Meta:
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db_table = 'dev'
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verbose_name = _('Device')
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verbose_name_plural = _('Devices')
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ordering = ('id',)
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def get_manager_klass(self):
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try:
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return next(klass for code, klass in self.DEVICE_TYPES if code == self.devtype)
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except StopIteration:
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raise TypeError('one of types is not subclass of DevBase. '
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'Or implementation of that device type is not found')
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def get_manager_object(self) -> DevBase:
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man_klass = self.get_manager_klass()
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if self._cached_manager is None:
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self._cached_manager = man_klass(self)
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return self._cached_manager
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# Can attach device to subscriber in subscriber page
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def has_attachable_to_subscriber(self) -> bool:
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mngr = self.get_manager_klass()
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return mngr.has_attachable_to_subscriber
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def __str__(self):
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return "%s: (%s) %s %s" % (self.comment, self.get_devtype_display(), self.ip_address or '', self.mac_addr or '')
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@staticmethod
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def update_dhcp():
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from .onu_register import onu_register
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onu_register(
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Device.objects.exclude(group=None).select_related('group').only('mac_addr', 'group__code').iterator()
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)
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def generate_config_template(self) -> Optional[AnyStr]:
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mng = self.get_manager_object()
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return mng.monitoring_template()
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def register_device(self):
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mng = self.get_manager_object()
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if self.extra_data is None:
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if self.parent_dev and self.parent_dev.extra_data is not None:
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return mng.register_device(self.parent_dev.extra_data)
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return mng.register_device(self.extra_data)
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def get_absolute_url(self):
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return resolve_url('devapp:edit', self.group.pk, self.pk)
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class Port(models.Model):
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device = models.ForeignKey(Device, on_delete=models.CASCADE, verbose_name=_('Device'))
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num = models.PositiveSmallIntegerField(_('Number'), default=0)
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descr = models.CharField(_('Description'), max_length=60, null=True, blank=True)
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def __str__(self):
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return "%d: %s" % (self.num, self.descr)
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class Meta:
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db_table = 'dev_port'
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unique_together = (('device', 'num'),)
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permissions = (
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('can_toggle_ports', _('Can toggle ports')),
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)
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verbose_name = _('Port')
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verbose_name_plural = _('Ports')
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ordering = ('num',)
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