Resolve "(TID) Add support for IETF slices"

Closes #141 (closed)

src/common/tools/descriptor/Loader.py

@@ -33,20 +33,25 @@
 #    # do test ...
 #    descriptor_loader.unload()
 
-import concurrent.futures, json, logging, operator
+import concurrent.futures, copy, json, logging, operator
 from typing import Any, Dict, List, Optional, Tuple, Union
 from common.proto.context_pb2 import (
-    Connection, Context, ContextId, Device, DeviceId, Empty, Link, LinkId, Service, ServiceId, Slice, SliceId,
-    Topology, TopologyId)
+    Connection, Context, ContextId, Device, DeviceId, Empty,
+    Link, LinkId, Service, ServiceId, Slice, SliceId,
+    Topology, TopologyId
+)
 from common.tools.object_factory.Context import json_context_id
 from context.client.ContextClient import ContextClient
 from device.client.DeviceClient import DeviceClient
 from service.client.ServiceClient import ServiceClient
 from slice.client.SliceClient import SliceClient
 from .Tools import (
-    format_device_custom_config_rules, format_service_custom_config_rules, format_slice_custom_config_rules,
-    get_descriptors_add_contexts, get_descriptors_add_services, get_descriptors_add_slices,
-    get_descriptors_add_topologies, split_controllers_and_network_devices, split_devices_by_rules)
+    format_device_custom_config_rules, format_service_custom_config_rules,
+    format_slice_custom_config_rules, get_descriptors_add_contexts,
+    get_descriptors_add_services, get_descriptors_add_slices,
+    get_descriptors_add_topologies, split_controllers_and_network_devices,
+    split_devices_by_rules
+)
 
 LOGGER = logging.getLogger(__name__)
 LOGGERS = {
@@ -78,6 +83,30 @@ TypeResults = List[Tuple[str, str, int, List[str]]] # entity_name, action, num_o
 TypeNotification = Tuple[str, str] # message, level
 TypeNotificationList = List[TypeNotification]
 
+SLICE_TEMPLATE = {
+    "slice_id": {
+        "context_id": {"context_uuid": {"uuid": "admin"}},
+        "slice_uuid": {"uuid": None}
+    },
+    "name": {},
+    "slice_config": {"config_rules": [
+        {"action": 1, "custom": {"resource_key": "/settings", "resource_value": {
+            "address_families": ["IPV4"], "bgp_as": 65000,
+            "bgp_route_target": "65000:333", "mtu": 1512
+        }}}
+    ]},
+    "slice_constraints": [
+        {"sla_capacity": {"capacity_gbps": 20.0}},
+        {"sla_availability": {"availability": 20.0, "num_disjoint_paths": 1, "all_active": True}},
+        {"sla_isolation": {"isolation_level": [0]}}
+    ],
+    "slice_endpoint_ids": [
+
+    ],
+    "slice_status": {"slice_status": 1}
+}
+
+
 class DescriptorLoader:
     def __init__(
         self, descriptors : Optional[Union[str, Dict]] = None, descriptors_file : Optional[str] = None,
@@ -106,8 +135,53 @@ class DescriptorLoader:
         self.__links       = self.__descriptors.get('links'      , [])
         self.__services    = self.__descriptors.get('services'   , [])
         self.__slices      = self.__descriptors.get('slices'     , [])
+        self.__ietf_slices = self.__descriptors.get('ietf-network-slice-service:network-slice-services', {})
         self.__connections = self.__descriptors.get('connections', [])
 
+        if len(self.__ietf_slices) > 0:
+            for slice_service in self.__ietf_slices["slice-service"]:
+                tfs_slice = copy.deepcopy(SLICE_TEMPLATE)
+                tfs_slice["slice_id"]["slice_uuid"]["uuid"] = slice_service["id"]
+                tfs_slice["name"] = slice_service["description"]
+                for sdp in slice_service["sdps"]["sdp"]:
+                    sdp_id = sdp["id"]
+                    for attcircuit in sdp["attachment-circuits"]["attachment-circuit"]:
+                        att_cir_tp_id = attcircuit["ac-tp-id"]
+                        RESOURCE_KEY = "/device[{:s}]/endpoint[{:s}]/settings"
+                        resource_key = RESOURCE_KEY.format(str(sdp_id), str(att_cir_tp_id))
+
+                        for tag in attcircuit['ac-tags']['ac-tag']:
+                            if tag.get('tag-type') == 'ietf-nss:vlan-id':
+                                vlan_id = tag.get('value')
+                            else:
+                                vlan_id = 0
+
+                        tfs_slice["slice_config"]["config_rules"].append({
+                            "action": 1, "custom": {
+                                "resource_key": resource_key, "resource_value": {
+                                    "router_id": sdp.get("node-id",[]),
+                                    "sub_interface_index": 0,
+                                    "vlan_id": vlan_id
+                                }
+                            }
+                        })
+                        tfs_slice["slice_endpoint_ids"].append({
+                            "device_id": {"device_uuid": {"uuid": sdp_id}},
+                            "endpoint_uuid": {"uuid": att_cir_tp_id},
+                            "topology_id": {"context_id": {"context_uuid": {"uuid": "admin"}}, 
+                            "topology_uuid": {"uuid": "admin"}}
+                        })
+                        #tfs_slice["slice_constraints"].append({
+                        #    "endpoint_location": {
+                        #        "endpoint_id": {
+                        #            "device_id": {"device_uuid": {"uuid": sdp["id"]}},
+                        #            "endpoint_uuid": {"uuid": attcircuit["ac-tp-id"]}
+                        #        },
+                        #        "location": {"region": "4"}
+                        #    }
+                        #})
+                self.__slices.append(tfs_slice)
+
         self.__contexts_add   = None
         self.__topologies_add = None
         self.__devices_add    = None
@@ -232,7 +306,9 @@ class DescriptorLoader:
 
     def _load_dummy_mode(self) -> None:
         # Dummy Mode: used to pre-load databases (WebUI debugging purposes) with no smart or automated tasks.
+
         controllers, network_devices = split_controllers_and_network_devices(self.__devices)
+
         self.__ctx_cli.connect()
         self._process_descr('context',    'add',    self.__ctx_cli.SetContext,    Context,    self.__contexts_add  )
         self._process_descr('topology',   'add',    self.__ctx_cli.SetTopology,   Topology,   self.__topologies_add)