1 # Copyright 2016 ZTE Corporation.
3 # Licensed under the Apache License, Version 2.0 (the "License");
4 # you may not use this file except in compliance with the License.
5 # You may obtain a copy of the License at
7 # http://www.apache.org/licenses/LICENSE-2.0
9 # Unless required by applicable law or agreed to in writing, software
10 # distributed under the License is distributed on an "AS IS" BASIS,
11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 # See the License for the specific language governing permissions and
13 # limitations under the License.
19 from lcm.pub.database.models import FPInstModel, VNFFGInstModel
20 from lcm.pub.exceptions import NSLCMException
21 from lcm.pub.msapi import extsys, resmgr, sdncdriver
23 logger = logging.getLogger(__name__)
26 class DeleteSfcs(object):
27 def __init__(self, sfc_inst_id):
28 self.sfc_inst_id = sfc_inst_id
33 sfc_inst_info = FPInstModel.objects.filter(fpinstid=self.sfc_inst_id)
35 logger.warn("sfc inst id(%s) is not exist or has been already deleted" % self.sfc_inst_id)
36 return {"result": 0, "detail": "sfc is not exist or has been already deleted"}
37 self.ns_inst_id = sfc_inst_info[0].nsinstid
38 self.delete_sfc_from_driver(sfc_inst_info[0])
39 self.delete_sfc_from_resmgr()
40 self.delete_sfc_from_db(sfc_inst_info)
41 return {"result": 0, "detail": "delete sfc success"}
42 except NSLCMException as e:
43 return self.exception_handle(e)
44 except Exception as e:
45 logger.error(traceback.format_exc())
46 return self.exception_handle(e)
48 def exception_handle(self, e):
49 detail = 'sfc delete failed, detail message: %s' % e.message
51 return {"result": 1, "detail": detail}
53 def delete_sfc_from_driver(self, sfc_inst_info):
54 sdn_controller_id = sfc_inst_info.sdncontrollerid
55 sdn_controller_url = extsys.get_sdn_controller_by_id(sdn_controller_id)["url"]
56 sfc_id = sfc_inst_info.sfcid
57 flow_classifiers = sfc_inst_info.flowclassifiers
58 port_pair_groups = sfc_inst_info.portpairgroups
60 req_param = {"sdnControllerId": sdn_controller_id, "url": sdn_controller_url, "id": sfc_id}
61 sdncdriver.delete_port_chain(req_param)
63 for flow_id in flow_classifiers.split(","):
64 req_param = {"sdnControllerId": sdn_controller_id, "url": sdn_controller_url, "id": flow_id}
65 sdncdriver.delete_flow_classifier(req_param)
67 for group in json.JSONDecoder().decode(port_pair_groups):
68 group_id = group["groupid"]
69 req_param = {"sdnControllerId": sdn_controller_id, "url": sdn_controller_url, "id": group_id}
70 sdncdriver.delete_port_pair_group(req_param)
71 port_pair = group["portpair"]
72 for port_pair_id in port_pair:
73 req_param = {"sdnControllerId": sdn_controller_id, "url": sdn_controller_url, "id": port_pair_id}
74 sdncdriver.delete_port_pair(req_param)
76 def delete_sfc_from_db(self, sfc_inst_info):
77 # do_biz_with_share_lock("delete-sfclist-in-vnffg-%s" % self.ns_inst_id, self.delete_sfc_inst_id_in_vnffg)
78 self.delete_sfc_inst_id_in_vnffg()
79 sfc_inst_info.delete()
81 def delete_sfc_from_resmgr(self):
82 resmgr.delete_sfc(self.sfc_inst_id)
84 def delete_sfc_inst_id_in_vnffg(self):
85 for vnffg_info in VNFFGInstModel.objects.filter(nsinstid=self.ns_inst_id):
87 for old_sfc_id in vnffg_info.fplist.split(","):
88 if old_sfc_id != self.sfc_inst_id:
89 new_sfc_id_list += old_sfc_id + ","
90 new_sfc_id_list = new_sfc_id_list[:-1]
91 VNFFGInstModel.objects.filter(vnffginstid=vnffg_info.vnffginstid).update(fplist=new_sfc_id_list)