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# Copyright 2021-2023 H2020 TeraFlow (https://www.teraflow-h2020.eu/)
#
# 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 grpc, logging
from typing import Any, Dict, Iterator, List
from common.tools.grpc.Tools import grpc_message_to_json_string
from context.proto.context_pb2 import (
Connection, ConnectionEvent, ConnectionId, ConnectionIdList, ConnectionList, Context, ContextEvent, ContextId,
ContextIdList, ContextList, Device, DeviceEvent, DeviceId, DeviceIdList, DeviceList, Empty, Link, LinkEvent,
LinkId, LinkIdList, LinkList, Service, ServiceEvent, ServiceId, ServiceIdList, ServiceList, Slice, SliceEvent,
SliceId, SliceIdList, SliceList, Topology, TopologyEvent, TopologyId, TopologyIdList, TopologyList)
from context.proto.context_pb2_grpc import ContextServiceServicer
LOGGER = logging.getLogger(__name__)
def get_container(database : Dict[str, Dict[str, Any]], container_name : str) -> Dict[str, Any]:
return database.setdefault(container_name, {})
def get_entries(database : Dict[str, Dict[str, Any]], container_name : str) -> List[Any]:
container = get_container(database, container_name)
return [container[entry_uuid] for entry_uuid in sorted(container.keys())]
def get_entry(
context : grpc.ServicerContext, database : Dict[str, Dict[str, Any]], container_name : str, entry_uuid : str
) -> Any:
LOGGER.debug('[get_entry] AFTER database={:s}'.format(str(database)))
container = get_container(database, container_name)
if entry_uuid not in container:
context.abort(grpc.StatusCode.NOT_FOUND, str('{:s}({:s}) not found'.format(container_name, entry_uuid)))
return container[entry_uuid]
def set_entry(database : Dict[str, Dict[str, Any]], container_name : str, entry_uuid : str, entry : Any) -> Any:
container = get_container(database, container_name)
LOGGER.debug('[set_entry] BEFORE database={:s}'.format(str(database)))
container[entry_uuid] = entry
LOGGER.debug('[set_entry] AFTER database={:s}'.format(str(database)))
return entry
def del_entry(
context : grpc.ServicerContext, database : Dict[str, Dict[str, Any]], container_name : str, entry_uuid : str
) -> Any:
container = get_container(database, container_name)
if entry_uuid not in container:
context.abort(grpc.StatusCode.NOT_FOUND, str('{:s}({:s}) not found'.format(container_name, entry_uuid)))
del container[entry_uuid]
return Empty()
class MockServicerImpl_Context(ContextServiceServicer):
def __init__(self):
LOGGER.info('[__init__] Creating Servicer...')
self.database : Dict[str, Any] = {}
LOGGER.info('[__init__] Servicer Created')
# ----- Context ----------------------------------------------------------------------------------------------------
def ListContextIds(self, request: Empty, context : grpc.ServicerContext) -> ContextIdList:
LOGGER.info('[ListContextIds] request={:s}'.format(grpc_message_to_json_string(request)))
return ContextIdList(context_ids=[context.context_id for context in get_entries(self.database, 'context')])
def ListContexts(self, request: Empty, context : grpc.ServicerContext) -> ContextList:
LOGGER.info('[ListContexts] request={:s}'.format(grpc_message_to_json_string(request)))
return ContextList(contexts=get_entries(self.database, 'context'))
def GetContext(self, request: ContextId, context : grpc.ServicerContext) -> Context:
LOGGER.info('[GetContext] request={:s}'.format(grpc_message_to_json_string(request)))
return get_entry(context, self.database, 'context', request.context_uuid.uuid)
def SetContext(self, request: Context, context : grpc.ServicerContext) -> ContextId:
LOGGER.info('[SetContext] request={:s}'.format(grpc_message_to_json_string(request)))
return set_entry(self.database, 'context', request.context_id.context_uuid.uuid, request).context_id
def RemoveContext(self, request: ContextId, context : grpc.ServicerContext) -> Empty:
LOGGER.info('[RemoveContext] request={:s}'.format(grpc_message_to_json_string(request)))
return del_entry(context, self.database, 'context', request.context_uuid.uuid)
def GetContextEvents(self, request: Empty, context : grpc.ServicerContext) -> Iterator[ContextEvent]:
LOGGER.info('[GetContextEvents] request={:s}'.format(grpc_message_to_json_string(request)))
# ----- Topology ---------------------------------------------------------------------------------------------------
def ListTopologyIds(self, request: ContextId, context : grpc.ServicerContext) -> TopologyIdList:
LOGGER.info('[ListTopologyIds] request={:s}'.format(grpc_message_to_json_string(request)))
topologies = get_entries(self.database, 'topology[{:s}]'.format(str(request.context_uuid.uuid)))
return TopologyIdList(topology_ids=[topology.topology_id for topology in topologies])
def ListTopologies(self, request: ContextId, context : grpc.ServicerContext) -> TopologyList:
LOGGER.info('[ListTopologies] request={:s}'.format(grpc_message_to_json_string(request)))
topologies = get_entries(self.database, 'topology[{:s}]'.format(str(request.context_uuid.uuid)))
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return TopologyList(topologies=[topology for topology in topologies])
def GetTopology(self, request: TopologyId, context : grpc.ServicerContext) -> Topology:
LOGGER.info('[GetTopology] request={:s}'.format(grpc_message_to_json_string(request)))
container_name = 'topology[{:s}]'.format(str(request.context_id.context_uuid.uuid))
return get_entry(context, self.database, container_name, request.topology_uuid.uuid)
def SetTopology(self, request: Topology, context : grpc.ServicerContext) -> TopologyId:
LOGGER.info('[SetTopology] request={:s}'.format(grpc_message_to_json_string(request)))
container_name = 'topology[{:s}]'.format(str(request.topology_id.context_id.context_uuid.uuid))
return set_entry(self.database, container_name, request.topology_id.topology_uuid.uuid, request).topology_id
def RemoveTopology(self, request: TopologyId, context : grpc.ServicerContext) -> Empty:
LOGGER.info('[RemoveTopology] request={:s}'.format(grpc_message_to_json_string(request)))
container_name = 'topology[{:s}]'.format(str(request.context_id.context_uuid.uuid))
return del_entry(context, self.database, container_name, request.topology_uuid.uuid)
def GetTopologyEvents(self, request: Empty, context : grpc.ServicerContext) -> Iterator[TopologyEvent]:
LOGGER.info('[GetTopologyEvents] request={:s}'.format(grpc_message_to_json_string(request)))
# ----- Device -----------------------------------------------------------------------------------------------------
def ListDeviceIds(self, request: Empty, context : grpc.ServicerContext) -> DeviceIdList:
LOGGER.info('[ListDeviceIds] request={:s}'.format(grpc_message_to_json_string(request)))
return DeviceIdList(device_ids=[device.device_id for device in get_entries(self.database, 'device')])
def ListDevices(self, request: Empty, context : grpc.ServicerContext) -> DeviceList:
LOGGER.info('[ListDevices] request={:s}'.format(grpc_message_to_json_string(request)))
return DeviceList(devices=get_entries(self.database, 'device'))
def GetDevice(self, request: DeviceId, context : grpc.ServicerContext) -> Device:
LOGGER.info('[GetDevice] request={:s}'.format(grpc_message_to_json_string(request)))
return get_entry(context, self.database, 'device', request.device_uuid.uuid)
def SetDevice(self, request: Context, context : grpc.ServicerContext) -> DeviceId:
LOGGER.info('[SetDevice] request={:s}'.format(grpc_message_to_json_string(request)))
return set_entry(self.database, 'device', request.device_id.device_uuid.uuid, request).device_id
def RemoveDevice(self, request: DeviceId, context : grpc.ServicerContext) -> Empty:
LOGGER.info('[RemoveDevice] request={:s}'.format(grpc_message_to_json_string(request)))
return del_entry(context, self.database, 'device', request.device_uuid.uuid)
def GetDeviceEvents(self, request: Empty, context : grpc.ServicerContext) -> Iterator[DeviceEvent]:
LOGGER.info('[GetDeviceEvents] request={:s}'.format(grpc_message_to_json_string(request)))
# ----- Link -------------------------------------------------------------------------------------------------------
def ListLinkIds(self, request: Empty, context : grpc.ServicerContext) -> LinkIdList:
LOGGER.info('[ListLinkIds] request={:s}'.format(grpc_message_to_json_string(request)))
return LinkIdList(link_ids=[link.link_id for link in get_entries(self.database, 'link')])
def ListLinks(self, request: Empty, context : grpc.ServicerContext) -> LinkList:
LOGGER.info('[ListLinks] request={:s}'.format(grpc_message_to_json_string(request)))
return LinkList(links=get_entries(self.database, 'link'))
def GetLink(self, request: LinkId, context : grpc.ServicerContext) -> Link:
LOGGER.info('[GetLink] request={:s}'.format(grpc_message_to_json_string(request)))
return get_entry(context, self.database, 'link', request.link_uuid.uuid)
def SetLink(self, request: Context, context : grpc.ServicerContext) -> LinkId:
LOGGER.info('[SetLink] request={:s}'.format(grpc_message_to_json_string(request)))
return set_entry(self.database, 'link', request.link_id.link_uuid.uuid, request).link_id
def RemoveLink(self, request: LinkId, context : grpc.ServicerContext) -> Empty:
LOGGER.info('[RemoveLink] request={:s}'.format(grpc_message_to_json_string(request)))
return del_entry(context, self.database, 'link', request.link_uuid.uuid)
def GetLinkEvents(self, request: Empty, context : grpc.ServicerContext) -> Iterator[LinkEvent]:
LOGGER.info('[GetLinkEvents] request={:s}'.format(grpc_message_to_json_string(request)))
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# ----- Slice ------------------------------------------------------------------------------------------------------
def ListSliceIds(self, request: ContextId, context : grpc.ServicerContext) -> SliceIdList:
LOGGER.info('[ListSliceIds] request={:s}'.format(grpc_message_to_json_string(request)))
slices = get_entries(self.database, 'slice[{:s}]'.format(str(request.context_uuid.uuid)))
return SliceIdList(slice_ids=[slice.slice_id for slice in slices])
def ListSlices(self, request: ContextId, context : grpc.ServicerContext) -> SliceList:
LOGGER.info('[ListSlices] request={:s}'.format(grpc_message_to_json_string(request)))
slices = get_entries(self.database, 'slice[{:s}]'.format(str(request.context_uuid.uuid)))
return SliceList(slices=[slice for slice in slices])
def GetSlice(self, request: SliceId, context : grpc.ServicerContext) -> Slice:
LOGGER.info('[GetSlice] request={:s}'.format(grpc_message_to_json_string(request)))
container_name = 'slice[{:s}]'.format(str(request.context_id.context_uuid.uuid))
return get_entry(context, self.database, container_name, request.slice_uuid.uuid)
def SetSlice(self, request: Slice, context : grpc.ServicerContext) -> SliceId:
LOGGER.info('[SetSlice] request={:s}'.format(grpc_message_to_json_string(request)))
return set_entry(
self.database, 'slice[{:s}]'.format(str(request.slice_id.context_id.context_uuid.uuid)),
request.slice_id.slice_uuid.uuid, request).slice_id
def RemoveSlice(self, request: SliceId, context : grpc.ServicerContext) -> Empty:
LOGGER.info('[RemoveSlice] request={:s}'.format(grpc_message_to_json_string(request)))
container_name = 'slice[{:s}]'.format(str(request.context_id.context_uuid.uuid))
return del_entry(context, self.database, container_name, request.slice_uuid.uuid)
def GetSliceEvents(self, request: Empty, context : grpc.ServicerContext) -> Iterator[SliceEvent]:
LOGGER.info('[GetSliceEvents] request={:s}'.format(grpc_message_to_json_string(request)))
# ----- Service ----------------------------------------------------------------------------------------------------
def ListServiceIds(self, request: ContextId, context : grpc.ServicerContext) -> ServiceIdList:
LOGGER.info('[ListServiceIds] request={:s}'.format(grpc_message_to_json_string(request)))
services = get_entries(self.database, 'service[{:s}]'.format(str(request.context_uuid.uuid)))
return ServiceIdList(service_ids=[service.service_id for service in services])
def ListServices(self, request: ContextId, context : grpc.ServicerContext) -> ServiceList:
LOGGER.info('[ListServices] request={:s}'.format(grpc_message_to_json_string(request)))
services = get_entries(self.database, 'service[{:s}]'.format(str(request.context_uuid.uuid)))
return ServiceList(services=[service for service in services])
def GetService(self, request: ServiceId, context : grpc.ServicerContext) -> Service:
LOGGER.info('[GetService] request={:s}'.format(grpc_message_to_json_string(request)))
container_name = 'service[{:s}]'.format(str(request.context_id.context_uuid.uuid))
return get_entry(context, self.database, container_name, request.service_uuid.uuid)
def SetService(self, request: Service, context : grpc.ServicerContext) -> ServiceId:
LOGGER.info('[SetService] request={:s}'.format(grpc_message_to_json_string(request)))
return set_entry(
self.database, 'service[{:s}]'.format(str(request.service_id.context_id.context_uuid.uuid)),
request.service_id.service_uuid.uuid, request).service_id
def RemoveService(self, request: ServiceId, context : grpc.ServicerContext) -> Empty:
LOGGER.info('[RemoveService] request={:s}'.format(grpc_message_to_json_string(request)))
container_name = 'service[{:s}]'.format(str(request.context_id.context_uuid.uuid))
return del_entry(context, self.database, container_name, request.service_uuid.uuid)
def GetServiceEvents(self, request: Empty, context : grpc.ServicerContext) -> Iterator[ServiceEvent]:
LOGGER.info('[GetServiceEvents] request={:s}'.format(grpc_message_to_json_string(request)))
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# ----- Connection -------------------------------------------------------------------------------------------------
def ListConnectionIds(self, request: ServiceId, context : grpc.ServicerContext) -> ConnectionIdList:
LOGGER.info('[ListConnectionIds] request={:s}'.format(grpc_message_to_json_string(request)))
container_name = 'service_connections[{:s}/{:s}]'.format(
str(request.context_id.context_uuid.uuid), str(request.service_uuid.uuid))
return ConnectionIdList(connection_ids=[c.connection_id for c in get_entries(self.database, container_name)])
def ListConnections(self, request: ServiceId, context : grpc.ServicerContext) -> ConnectionList:
LOGGER.info('[ListConnections] request={:s}'.format(grpc_message_to_json_string(request)))
container_name = 'service_connections[{:s}/{:s}]'.format(
str(request.context_id.context_uuid.uuid), str(request.service_uuid.uuid))
return ConnectionList(connections=get_entries(self.database, container_name))
def GetConnection(self, request: ConnectionId, context : grpc.ServicerContext) -> Connection:
LOGGER.info('[GetConnection] request={:s}'.format(grpc_message_to_json_string(request)))
return get_entry(context, self.database, 'connection', request.connection_uuid.uuid)
def SetConnection(self, request: Connection, context : grpc.ServicerContext) -> ConnectionId:
LOGGER.info('[SetConnection] request={:s}'.format(grpc_message_to_json_string(request)))
service_connection__container_name = 'service_connection[{:s}/{:s}]'.format(
str(request.service_id.context_id.context_uuid.uuid), str(request.service_id.service_uuid.uuid))
set_entry(
self.database, service_connection__container_name, request.connection_id.connection_uuid.uuid, request)
return set_entry(
self.database, 'connection', request.connection_id.connection_uuid.uuid, request).connection_id
def RemoveConnection(self, request: ConnectionId, context : grpc.ServicerContext) -> Empty:
LOGGER.info('[RemoveConnection] request={:s}'.format(grpc_message_to_json_string(request)))
connection = get_entry(context, self.database, 'connection', request.connection_uuid.uuid)
service_id = connection.service_id
service_connection__container_name = 'service_connection[{:s}/{:s}]'.format(
str(service_id.context_id.context_uuid.uuid), str(service_id.service_uuid.uuid))
del_entry(context, self.database, service_connection__container_name, request.connection_uuid.uuid)
return del_entry(context, self.database, 'connection', request.connection_uuid.uuid)
def GetConnectionEvents(self, request: Empty, context : grpc.ServicerContext) -> Iterator[ConnectionEvent]:
LOGGER.info('[GetConnectionEvents] request={:s}'.format(grpc_message_to_json_string(request)))