xos/core/models/service.py

# 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.

from xos.exceptions import *
from service_decl import *


class Service(Service_decl):
    class Meta:
        proxy = True

    KIND = "generic"

    def get_composable_networks(self):
        SUPPORTED_VTN_SERVCOMP_KINDS = ["VSG", "PRIVATE"]

        nets = []
        for slice in self.slices.all():
            for net in slice.networks.all():
                if (net.template.vtn_kind not in SUPPORTED_VTN_SERVCOMP_KINDS) or (
                    net.owner != slice
                ):
                    continue

                if not net.controllernetworks.exists():
                    continue
                nets.append(net)
        return nets

    @property
    def provider_services(self):
        svcs = []
        service_deps = self.subscribed_dependencies.all()
        for dep in service_deps:
            svcs.append(dep.provider_service)
        return svcs

    @property
    def subscriber_services(self):
        svcs = []
        service_deps = self.provided_dependencies.all()
        for dep in service_deps:
            svcs.append(dep.subscriber_service)
        return svcs