1 # Copyright 2017 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 NfInstModel
20 from lcm.pub.database.models import NSInstModel
21 from lcm.ns.vnfs.const import VNF_STATUS
22 from lcm.pub.msapi import catalog
25 logger = logging.getLogger(__name__)
26 SCALE_TYPE = ("SCALE_NS", "SCALE_VNF")
28 scale_vnf_data_mapping = {
38 def ignorcase_get(args, key):
46 if old_key.upper() == key.upper():
51 def mapping_conv(keyword_map, rest_return):
53 for param in keyword_map:
54 if keyword_map[param]:
55 if isinstance(keyword_map[param], dict):
56 resp_data[param] = mapping_conv(
57 keyword_map[param], ignorcase_get(
60 resp_data[param] = ignorcase_get(rest_return, param)
64 def get_vnf_scale_info(filename, ns_instanceId, aspect, step):
65 json_data = get_json_data(filename)
66 scale_options = ignorcase_get(json_data, "scale_options")
67 for i in range(scale_options.__len__()):
68 ns_scale_option = scale_options[i]
69 if (ignorcase_get(ns_scale_option, "ns_instanceId") == ns_instanceId) \
70 and (ignorcase_get(ns_scale_option, "ns_scale_aspect") == aspect):
71 ns_scale_info_list = ignorcase_get(
72 ns_scale_option, "ns_scale_info_list")
73 for j in range(ns_scale_info_list.__len__()):
74 ns_scale_info = ns_scale_info_list[j]
75 if ns_scale_info["step"] == step:
76 return ns_scale_info["vnf_scale_info"]
81 def get_vnf_instance_id_list(vnfd_id):
83 kwargs['package_id'] = vnfd_id
84 kwargs['status'] = VNF_STATUS.ACTIVE
86 nf_model_list = NfInstModel.objects.filter(**kwargs)
87 vnf_instance_id_list = list()
88 for i in range(nf_model_list.__len__()):
89 vnf_instance_id_list.append(nf_model_list[i].nfinstid)
91 return vnf_instance_id_list
94 def get_json_data(filename):
97 data = json.JSONDecoder().decode(json_str)
102 def check_scale_list(vnf_scale_list, ns_instanceId, aspect, step):
103 if vnf_scale_list is None:
105 "The scaling option[ns=%s, aspect=%s, step=%s] does not exist. Pls check the config file." %
106 (ns_instanceId, aspect, step))
108 "The scaling option[ns=%s, aspect=%s, step=%s] does not exist. Pls check the config file." %
109 (ns_instanceId, aspect, step))
111 return vnf_scale_list
114 def get_scale_vnf_data_list(filename, ns_instanceId, aspect, step, scale_type):
116 vnf_scale_list = get_vnf_scale_info(filename, ns_instanceId, aspect, step)
117 check_scale_list(vnf_scale_list, ns_instanceId, aspect, step)
118 scaleVnfDataList = set_scaleVnfData_type(vnf_scale_list, scale_type)
119 logger.debug("scaleVnfDataList = %s" % scaleVnfDataList)
120 return scaleVnfDataList
123 # Get the nsd id according to the ns instance id.
124 def get_nsdId(ns_instanceId):
125 if NSInstModel.objects.filter(id=ns_instanceId):
126 nsd_id = NSInstModel.objects.filter(id=ns_instanceId)[0].nsd_id
132 def get_and_check_params(scaleNsByStepsData, ns_InstanceId):
134 if scaleNsByStepsData is None:
136 # raise NSLCMException("Error! scaleNsByStepsData in the request is Empty!")
138 aspect = scaleNsByStepsData["aspectId"]
139 numberOfSteps = scaleNsByStepsData["numberOfSteps"]
140 scale_type = scaleNsByStepsData["scalingDirection"]
142 return aspect, numberOfSteps, scale_type
145 def get_scale_vnf_data(scaleNsData, ns_InstanceId):
146 curdir_path = os.path.dirname(
149 os.path.abspath(__file__))))
150 filename = curdir_path + "/ns/data/scalemapping.json"
151 logger.debug("filename = %s" % filename)
152 aspect, numberOfSteps, scale_type = get_and_check_params(
153 scaleNsData, ns_InstanceId)
154 return get_scale_vnf_data_list(
162 # Get scaling vnf data info list according to the ns instance id and request ScaleNsData.
163 def get_scale_vnf_data_info_list(scaleNsData, ns_InstanceId):
164 # Gets the nsd id accordign to the ns instance id.
165 nsd_id = get_nsdId(ns_InstanceId)
167 # Gets the scalingmap json data from the package according to the ns instance id.
168 scalingmap_json = catalog.get_scalingmap_json_package(ns_InstanceId)
170 # Gets and checks the values of parameters.
171 aspect, numberOfSteps, scale_type = get_and_check_params(
172 scaleNsData, ns_InstanceId)
174 # Firstly, gets the scaling vnf data info list from the scaling map json data.
175 scale_vnf_data_info_list_from_json = get_scale_vnf_data_from_json(scalingmap_json, nsd_id, aspect, numberOfSteps)
176 check_scale_list(scale_vnf_data_info_list_from_json, ns_InstanceId, aspect, numberOfSteps)
178 # Secondly, adds the property of vnfInstanceId to the list according to the vnfd id.
179 scale_vnf_data_info_list = set_scacle_vnf_instance_id(scale_vnf_data_info_list_from_json)
180 check_scale_list(scale_vnf_data_info_list, ns_InstanceId, aspect, numberOfSteps)
182 # Lastly, adds the property of type to the list acoording to the request ScaleNsData.
183 scale_vnf_data_info_list = set_scaleVnfData_type(scale_vnf_data_info_list, scale_type)
184 check_scale_list(scale_vnf_data_info_list, ns_InstanceId, aspect, numberOfSteps)
186 return scale_vnf_data_info_list
189 # Get the vnf scaling info from the scaling_map.json according to the ns package id.
190 def get_scale_vnf_data_from_json(scalingmap_json, nsd_id, aspect, step):
191 scale_options = ignorcase_get(scalingmap_json, "scale_options")
192 for i in range(scale_options.__len__()):
193 ns_scale_option = scale_options[i]
194 if (ignorcase_get(ns_scale_option, "nsd_id") == nsd_id) and (
195 ignorcase_get(ns_scale_option, "ns_scale_aspect") == aspect):
196 ns_scale_info_list = ignorcase_get(
197 ns_scale_option, "ns_scale_info")
198 for j in range(ns_scale_info_list.__len__()):
199 ns_scale_info = ns_scale_info_list[j]
200 if ns_scale_info["step"] == step:
201 vnf_scale_info_list = ns_scale_info["vnf_scale_info"]
203 return vnf_scale_info_list
208 # Gets the vnf instance id according to the vnfd_id and modify the list of scaling vnf info accrodingly.
209 def set_scacle_vnf_instance_id(vnf_scale_info_list):
210 scale_vnf_data_info_list = []
211 for i in range(vnf_scale_info_list.__len__()):
212 vnf_scale_info = vnf_scale_info_list[i]
213 vnfd_id = vnf_scale_info["vnfd_id"]
214 vnf_instance_id_list = get_vnf_instance_id_list(vnfd_id)
216 while index < vnf_instance_id_list.__len__():
217 copy_vnf_scale_info = copy.deepcopy(vnf_scale_info)
218 copy_vnf_scale_info.pop("vnfd_id")
219 copy_vnf_scale_info["vnfInstanceId"] = vnf_instance_id_list[index]
221 scale_vnf_data_info_list.append(copy_vnf_scale_info)
223 return scale_vnf_data_info_list
226 # Sets the scaling type of vnf data info list.
227 def set_scaleVnfData_type(vnf_scale_list, scale_type):
229 "vnf_scale_list = %s, type = %s" %
230 (vnf_scale_list, scale_type))
231 scaleVnfDataList = []
232 if vnf_scale_list is not None:
233 for i in range(vnf_scale_list.__len__()):
234 scaleVnfData = copy.deepcopy(scale_vnf_data_mapping)
235 scaleVnfData["vnfInstanceId"] = vnf_scale_list[i]["vnfInstanceId"]
236 scaleVnfData["scaleByStepData"]["type"] = scale_type
237 scaleVnfData["scaleByStepData"]["aspectId"] = vnf_scale_list[i]["vnf_scaleAspectId"]
238 scaleVnfData["scaleByStepData"]["numberOfSteps"] = vnf_scale_list[i]["numberOfSteps"]
239 scaleVnfDataList.append(scaleVnfData)
240 logger.debug("scaleVnfDataList = %s" % scaleVnfDataList)
241 return scaleVnfDataList