Newer
Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
# 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 common.Constants import ServiceNameEnum
from common.Settings import get_service_host, get_service_port_grpc
from common.tools.client.RetryDecorator import retry, delay_exponential
#from common.tools.grpc.Tools import grpc_message_to_json_string
#from slice.proto.context_pb2 import Empty, Slice, SliceId
from dlt.connector.proto.dlt_pb2_grpc import DltServiceStub
LOGGER = logging.getLogger(__name__)
MAX_RETRIES = 15
DELAY_FUNCTION = delay_exponential(initial=0.01, increment=2.0, maximum=5.0)
RETRY_DECORATOR = retry(max_retries=MAX_RETRIES, delay_function=DELAY_FUNCTION, prepare_method_name='connect')
class DltClient:
def __init__(self, host=None, port=None):
if not host: host = get_service_host(ServiceNameEnum.DLT)
if not port: port = get_service_port_grpc(ServiceNameEnum.DLT)
self.endpoint = '{:s}:{:s}'.format(str(host), str(port))
LOGGER.debug('Creating channel to {:s}...'.format(self.endpoint))
self.channel = None
self.stub = None
self.connect()
LOGGER.debug('Channel created')
def connect(self):
self.channel = grpc.insecure_channel(self.endpoint)
self.stub = DltServiceStub(self.channel)
def close(self):
if self.channel is not None: self.channel.close()
self.channel = None
self.stub = None
# @RETRY_DECORATOR
# def CreateSlice(self, request : Slice) -> SliceId:
# LOGGER.debug('CreateSlice request: {:s}'.format(grpc_message_to_json_string(request)))
# response = self.stub.CreateSlice(request)
# LOGGER.debug('CreateSlice result: {:s}'.format(grpc_message_to_json_string(response)))
# return response
# @RETRY_DECORATOR
# def UpdateSlice(self, request : Slice) -> SliceId:
# LOGGER.debug('UpdateSlice request: {:s}'.format(grpc_message_to_json_string(request)))
# response = self.stub.UpdateSlice(request)
# LOGGER.debug('UpdateSlice result: {:s}'.format(grpc_message_to_json_string(response)))
# return response
# @RETRY_DECORATOR
# def DeleteSlice(self, request : SliceId) -> Empty:
# LOGGER.debug('DeleteSlice request: {:s}'.format(grpc_message_to_json_string(request)))
# response = self.stub.DeleteSlice(request)
# LOGGER.debug('DeleteSlice result: {:s}'.format(grpc_message_to_json_string(response)))
# return response
// 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.
syntax = "proto3";
package dlt;
import "context.proto";
service DltService {
rpc RecordToDlt (DltRecord ) returns ( DltRecordStatus ) {}
rpc GetFromDlt (DltRecordId ) returns ( DltRecord ) {}
rpc SubscribeToDlt(DltRecordSubscription ) returns (stream DltRecordEvent ) {}
rpc GetDltStatus (context.TeraFlowController) returns ( DltPeerStatus ) {} // NEC is checkig if it is possible
rpc GetDltPeers (context.Empty ) returns ( DltPeerStatusList) {} // NEC is checkig if it is possible
}
enum DltRecordTypeEnum {
DLTRECORDTYPE_UNDEFINED = 0;
DLTRECORDTYPE_CONTEXT = 1;
DLTRECORDTYPE_TOPOLOGY = 2;
DLTRECORDTYPE_DEVICE = 3;
DLTRECORDTYPE_LINK = 4;
DLTRECORDTYPE_SERVICE = 5;
DLTRECORDTYPE_SLICE = 6;
}
enum DltRecordOperationEnum {
DLTRECORDOPERATION_UNDEFINED = 0;
DLTRECORDOPERATION_ADD = 1;
DLTRECORDOPERATION_UPDATE = 2;
DLTRECORDOPERATION_DELETE = 3;
}
enum DltRecordStatusEnum {
DLTRECORDSTATUS_UNDEFINED = 0;
DLTRECORDSTATUS_SUCCEEDED = 1;
DLTRECORDSTATUS_FAILED = 2;
}
enum DltStatusEnum {
DLTSTATUS_UNDEFINED = 0;
DLTSTATUS_NOTAVAILABLE = 1;
DLTSTATUS_INITIALIZED = 2;
DLTSTATUS_AVAILABLE = 3;
DLTSTATUS_DEINIT = 4;
}
message DltRecordId {
context.Uuid domain_uuid = 1; // unique identifier of domain owning the record
DltRecordTypeEnum type = 2; // type of record
context.Uuid record_uuid = 3; // unique identifier of the record within the domain context_uuid/topology_uuid
}
message DltRecord {
DltRecordId record_id = 1; // record identifier
DltRecordOperationEnum operation = 2; // operation to be performed over the record
string data_json = 3; // record content: JSON-encoded record content
}
message DltRecordSubscription {
// retrieved events have to match ALL conditions.
// i.e., type in types requested, AND operation in operations requested
// TODO: consider adding a more sophisticated filtering
repeated DltRecordTypeEnum type = 1; // selected event types, empty=all
repeated DltRecordOperationEnum operation = 2; // selected event operations, empty=all
}
message DltRecordEvent {
context.Event event = 1; // common event data (timestamp & event_type)
DltRecordId record_id = 2; // record identifier associated with this event
}
message DltRecordStatus {
DltRecordId record_id = 1; // identifier of the associated record
DltRecordStatusEnum status = 2; // status of the record
string error_message = 3; // error message in case of failure, empty otherwise
}
message DltPeerStatus {
context.TeraFlowController controller = 1; // Identifier of the TeraFlow controller instance
DltStatusEnum status = 2; // Status of the TeraFlow controller instance
}
message DltPeerStatusList {
repeated DltPeerStatus peers = 1; // List of peers and their status
}