osdf/optimizers/routeopt/simple_route_opt.py

   1 # -------------------------------------------------------------------------
   2 #   Copyright (c) 2018 Huawei Intellectual Property
   3 #
   4 #   Licensed under the Apache License, Version 2.0 (the "License");
   5 #   you may not use this file except in compliance with the License.
   6 #   You may obtain a copy of the License at
   7 #
   8 #       http://www.apache.org/licenses/LICENSE-2.0
   9 #
  10 #   Unless required by applicable law or agreed to in writing, software
  11 #   distributed under the License is distributed on an "AS IS" BASIS,
  12 #   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13 #   See the License for the specific language governing permissions and
  14 #   limitations under the License.
  15 #
  16 # -------------------------------------------------------------------------
  17 #
  18
  19 import requests
  20 from requests.auth import HTTPBasicAuth
  21
  22
  23 class RouteOpt:
  24
  25     """
  26     This values will need to deleted..
  27     only added for the debug purpose
  28     """
  29     # DNS server and standard port of AAI..
  30     # TODO: read the port from the configuration and add to DNS
  31     aai_host = "https://aai.api.simpledemo.onap.org:8443"
  32     aai_headers = {
  33         "X-TransactionId": "9999",
  34         "X-FromAppId": "OOF",
  35         "Accept": "application/json",
  36         "Content-Type": "application/json",
  37         "Real-Time": "true"
  38     }
  39
  40     def isCrossONAPLink(self, logical_link):
  41         """
  42         This method checks if cross link is cross onap
  43         :param logical_link:
  44         :return:
  45         """
  46         for relationship in logical_link["relationship-list"]["relationship"]:
  47             if relationship["related-to"] == "external-aai-network":
  48                 return True
  49         return False
  50
  51     def getRoute(self, request):
  52         """
  53         This method checks
  54         :param logical_link:
  55         :return:
  56         """
  57
  58         src_access_node_id = request["srcPort"]["src-access-node-id"]
  59         dst_access_node_id = request["dstPort"]["dst-access-node-id"]
  60
  61
  62         ingress_p_interface = None
  63         egress_p_interface = None
  64
  65         # for the case of request_json for same domain, return the same node with destination update
  66         if src_access_node_id == dst_access_node_id:
  67             data = '{'\
  68                 '"vpns":['\
  69                     '{'\
  70                         '"access-topology-id": "' + request["srcPort"]["src-access-topology-id"] + '",'\
  71                         '"access-client-id": "' + request["srcPort"]["src-access-client-id"] + '",'\
  72                         '"access-provider-id": "' + request["srcPort"]["src-access-provider-id"]+ '",'\
  73                         '"access-node-id": "' + request["srcPort"]["src-access-node-id"]+ '",'\
  74                         '"src-access-ltp-id": "' + request["srcPort"]["src-access-ltp-id"]+ '",'\
  75                         '"dst-access-ltp-id": "' + request["dstPort"]["dst-access-ltp-id"]  +'"'\
  76                     '}'\
  77                 ']'\
  78             '}'
  79             return data
  80         else:
  81             logical_links = self.get_logical_links()
  82
  83             # take the logical link where both the p-interface in same onap
  84             if logical_links != None:
  85                 for logical_link in logical_links.get("logical-link"):
  86                     if not self.isCrossONAPLink(logical_link):
  87                         # link is in local ONAP
  88                         for relationship in logical_link["relationship-list"]["relationship"]:
  89                             if relationship["related-to"] == "p-interface":
  90                                 if src_access_node_id in relationship["related-link"]:
  91                                     i_interface = relationship["related-link"].split("/")[-1]
  92                                     ingress_p_interface = i_interface.split("-")[-1]
  93                                 if dst_access_node_id in relationship["related-link"]:
  94                                     e_interface = relationship["related-link"].split("/")[-1]
  95                                     egress_p_interface = e_interface.split("-")[-1]
  96                         data = '{'\
  97                                 '"vpns":['\
  98                                         '{'\
  99                                         '"access-topology-id": "' + request["srcPort"]["src-access-topology-id"] + '",'\
 100                                         '"access-client-id": "' + request["srcPort"]["src-access-client-id"] + '",'\
 101                                         '"access-provider-id": "' + request["srcPort"]["src-access-provider-id"]+ '",'\
 102                                         '"access-node-id": "' + request["srcPort"]["src-access-node-id"]+ '",'\
 103                                         '"src-access-ltp-id": "' + request["srcPort"]["src-access-ltp-id"]+ '",'\
 104                                         '"dst-access-ltp-id": "' + ingress_p_interface +'"'\
 105                                 '},'\
 106                                 '{' \
 107                                         '"access-topology-id": "' + request["dstPort"]["dst-access-topology-id"] + '",' \
 108                                         '"access-topology-id": "' + request["dstPort"]["dst-access-topology-id"]+ '",' \
 109                                         '"access-provider-id": "' + request["dstPort"]["dst-access-provider-id"]+ '",' \
 110                                         '"access-node-id": "' + request["dstPort"]["dst-access-node-id"]+ '",' \
 111                                         '"src-access-ltp-id": "' + egress_p_interface + '",' \
 112                                         '"dst-access-ltp-id": "' + request["dstPort"]["dst-access-ltp-id"] + '"' \
 113                                 '}'\
 114                             ']'\
 115                         '}'
 116                         return data
 117
 118
 119     def get_pinterface(self, url):
 120         """
 121         This method returns details for p interface
 122         :return: details of p interface
 123         """
 124         aai_req_url = self.aai_host + url
 125         response = requests.get(aai_req_url,
 126                                 headers=self.aai_headers,
 127                                 auth=HTTPBasicAuth("AAI", "AAI"),
 128                                 verify=False)
 129
 130         if response.status_code == 200:
 131             return response.json()
 132
 133
 134     def get_logical_links(self):
 135         """
 136         This method returns list of all cross ONAP links
 137         from /aai/v14/network/logical-links?operation-status="Up"
 138         :return: logical-links[]
 139         """
 140         logical_link_url = "/aai/v13/network/logical-links?operational-status=up"
 141         aai_req_url = self.aai_host + logical_link_url
 142
 143         response = requests.get(aai_req_url,
 144                      headers=self.aai_headers,
 145                      auth=HTTPBasicAuth("AAI", "AAI"),
 146                      verify=False)
 147
 148         logical_links =  None
 149         if response.status_code == 200:
 150             return response.json()