zte/vmanager/driver/interfaces/views.py

   1 # Copyright 2016-2017 ZTE Corporation.
   2 #
   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
   6 #
   7 #         http://www.apache.org/licenses/LICENSE-2.0
   8 #
   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.
  14
  15 import inspect
  16 import json
  17 import logging
  18 import os
  19 import traceback
  20
  21 from drf_yasg import openapi
  22 from drf_yasg.utils import swagger_auto_schema
  23 from rest_framework import status
  24 from rest_framework.response import Response
  25 from rest_framework.views import APIView
  26 from django.http import StreamingHttpResponse
  27
  28 from driver.interfaces.serializers import HealReqSerializer, InstScaleHealRespSerializer, ScaleReqSerializer, \
  29     NotifyReqSerializer, GrantRespSerializer, GrantReqSerializer, JobQueryRespSerializer, TerminateVnfRequestSerializer, \
  30     InstantiateVnfRequestSerializer, QueryVnfResponseSerializer, SubscribesRespSerializer, \
  31     SubscribeReqSerializer, SubscribeRespSerializer, VnfPkgsSerializer, NfvoInfoReqSerializer
  32 from driver.pub.config.config import VNF_FTP
  33 from driver.pub.utils import restcall
  34 from driver.pub.utils.restcall import req_by_msb
  35
  36 CHUNK_SIZE = 1024 * 8
  37
  38 logger = logging.getLogger(__name__)
  39
  40
  41 def load_json_file(file_name):
  42     json_file = os.path.join(os.path.dirname(__file__), "data/" + file_name)
  43     f = open(json_file)
  44     json_data = json.JSONDecoder().decode(f.read())
  45     f.close()
  46     return json_data
  47
  48
  49 def read(file_path, start, end):
  50     fp = open(file_path, 'rb')
  51     fp.seek(start)
  52     pos = start
  53     while pos + CHUNK_SIZE < end:
  54         yield fp.read(CHUNK_SIZE)
  55         pos = fp.tell()
  56     yield fp.read(end - pos)
  57
  58
  59 def parse_file_range(file_path, file_range):
  60     start, end = 0, os.path.getsize(file_path)
  61     if file_range:
  62         [start, end] = file_range.split('-')
  63         start, end = start.strip(), end.strip()
  64         start, end = int(start), int(end)
  65     return start, end
  66
  67
  68 def fun_name():
  69     return "=================%s==================" % inspect.stack()[1][3]
  70
  71
  72 def ignorcase_get(args, key):
  73     if not key:
  74         return ""
  75     if not args:
  76         return ""
  77     if key in args:
  78         return args[key]
  79     for old_key in args:
  80         if old_key.upper() == key.upper():
  81             return args[old_key]
  82     return ""
  83
  84
  85 # Query vnfm_info from nslcm
  86 def get_vnfminfo_from_nslcm(vnfmid):
  87     ret = req_by_msb("api/nslcm/v1/vnfms/%s" % vnfmid, "GET")
  88     return ret
  89
  90
  91 # Query vnfd_info from nslcm
  92 def vnfd_get(vnfpackageid):
  93     ret = req_by_msb("api/nslcm/v1/vnfpackage/%s" % vnfpackageid, "GET")
  94     return ret
  95
  96
  97 # Query vnfpackage_info from nslcm
  98 def vnfpackage_get(csarid):
  99     ret = req_by_msb("api/nslcm/v1/vnfpackage/%s" % csarid, "GET")
 100     return ret
 101
 102
 103 class InstantiateVnf(APIView):
 104     @swagger_auto_schema(
 105         request_body=InstantiateVnfRequestSerializer(),
 106         responses={
 107             status.HTTP_200_OK: InstScaleHealRespSerializer(),
 108             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 109         }
 110     )
 111     def post(self, request, vnfmid):
 112         try:
 113             logger.debug("[%s] request.data=%s", fun_name(), request.data)
 114             instantiateVnfRequestSerializer = InstantiateVnfRequestSerializer(data=request.data)
 115             if not instantiateVnfRequestSerializer.is_valid():
 116                 raise Exception(instantiateVnfRequestSerializer.errors)
 117
 118             ret = get_vnfminfo_from_nslcm(vnfmid)
 119             if ret[0] != 0:
 120                 raise Exception(ret[1])
 121
 122             vnfm_info = json.JSONDecoder().decode(ret[1])
 123             logger.debug("[%s] vnfm_info=%s", fun_name(), vnfm_info)
 124             vnf_package_id = ignorcase_get(instantiateVnfRequestSerializer.data, "vnfPackageId")
 125             ret = vnfd_get(vnf_package_id)
 126             if ret[0] != 0:
 127                 raise Exception(ret[1])
 128
 129             vnfd_info = json.JSONDecoder().decode(ret[1])
 130             logger.debug("[%s] vnfd_info=%s", fun_name(), vnfd_info)
 131             csar_id = ignorcase_get(vnfd_info, "csarId")
 132             ret = vnfpackage_get(csar_id)
 133             if ret[0] != 0:
 134                 raise Exception(ret[1])
 135
 136             vnf_package_info = json.JSONDecoder().decode(ret[1])
 137             packageInfo = ignorcase_get(vnf_package_info, "packageInfo")
 138             logger.debug("[%s] packageInfo=%s", fun_name(), packageInfo)
 139             logger.debug("VNF_FTP=%s", VNF_FTP)
 140             data = {
 141                 "vnfinstancename": "default",
 142                 "NFVOID": 1,
 143                 "VNFMID": vnfmid,
 144                 "vnfd_id": packageInfo.get("vnfdId"),
 145                 "deployflavorid": "default",
 146                 "extension": {},
 147                 "inputs": []
 148             }
 149
 150             additionalParam = ignorcase_get(instantiateVnfRequestSerializer.data, "additionalParam")
 151             for name, value in ignorcase_get(additionalParam, "inputs").items():
 152                 data["inputs"].append({"key_name": name, "value": value, "type": "TODO"})
 153
 154             inputs_json = load_json_file("inputs.json")
 155             [data["inputs"].append(item) for item in inputs_json["inputs"]]
 156
 157             logger.debug("[%s] call_req data=%s", fun_name(), data)
 158
 159             ret = restcall.call_req(
 160                 base_url=ignorcase_get(vnfm_info, "url"),
 161                 user=ignorcase_get(vnfm_info, "userName"),
 162                 passwd=ignorcase_get(vnfm_info, "password"),
 163                 auth_type=restcall.rest_no_auth,
 164                 resource="v1/vnfs",
 165                 method='post',
 166                 content=json.JSONEncoder().encode(data))
 167
 168             logger.debug("[%s] call_req ret=%s", fun_name(), ret)
 169             if ret[0] != 0:
 170                 raise Exception(ret[1])
 171
 172             resp = json.JSONDecoder().decode(ret[1])
 173             resp_data = {
 174                 "vnfInstanceId": ignorcase_get(resp, "VNFInstanceID"),
 175                 "jobId": ignorcase_get(resp, "JobId")
 176             }
 177             logger.debug("[%s]resp_data=%s", fun_name(), resp_data)
 178             instRespSerializer = InstScaleHealRespSerializer(data=resp_data)
 179             if not instRespSerializer.is_valid():
 180                 raise Exception(instRespSerializer.errors)
 181
 182             logger.debug("[%s] instRespSerializer.data=%s", fun_name(), instRespSerializer.data)
 183             return Response(data=instRespSerializer.data, status=status.HTTP_200_OK)
 184         except Exception as e:
 185             logger.error("Error occurred when instantiating VNF,error:%s", e.message)
 186             logger.error(traceback.format_exc())
 187             return Response(data={'error': 'InstantiateVnf expection'}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 188
 189
 190 class TerminateVnf(APIView):
 191     @swagger_auto_schema(
 192         request_body=TerminateVnfRequestSerializer(),
 193         responses={
 194             status.HTTP_200_OK: InstScaleHealRespSerializer(),
 195             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 196         }
 197     )
 198     def post(self, request, vnfmid, vnfInstanceId):
 199         try:
 200             logger.debug("[%s] request.data=%s", fun_name(), request.data)
 201             logger.debug("vnfmid=%s, vnfInstanceId=%s", vnfmid, vnfInstanceId)
 202             terminate_vnf_request_serializer = TerminateVnfRequestSerializer(data=request.data)
 203             if not terminate_vnf_request_serializer.is_valid():
 204                 raise Exception(terminate_vnf_request_serializer.errors)
 205
 206             ret = get_vnfminfo_from_nslcm(vnfmid)
 207             if ret[0] != 0:
 208                 raise Exception(ret[1])
 209
 210             vnfm_info = json.JSONDecoder().decode(ret[1])
 211             logger.debug("[%s] vnfm_info=%s", fun_name(), vnfm_info)
 212             ret = restcall.call_req(
 213                 base_url=ignorcase_get(vnfm_info, "url"),
 214                 user=ignorcase_get(vnfm_info, "userName"),
 215                 passwd=ignorcase_get(vnfm_info, "password"),
 216                 auth_type=restcall.rest_no_auth,
 217                 resource="v1/vnfs/%s?NFVOID=1&VNFMID=%s" % (vnfInstanceId, vnfmid),
 218                 method='delete',
 219                 content='{}')
 220             if ret[0] != 0:
 221                 raise Exception(ret[1])
 222
 223             resp = json.JSONDecoder().decode(ret[1])
 224             resp_data = {
 225                 "vnfInstanceId": vnfInstanceId,
 226                 "jobId": ignorcase_get(resp, "JobId")
 227             }
 228             logger.debug("[%s]resp_data=%s", fun_name(), resp_data)
 229             terminateRespSerializer = InstScaleHealRespSerializer(data=resp_data)
 230             if not terminateRespSerializer.is_valid():
 231                 raise Exception(terminateRespSerializer.errors)
 232             return Response(data=terminateRespSerializer.data, status=status.HTTP_200_OK)
 233         except Exception as e:
 234             logger.error("Error occurred when terminating VNF,error: %s", e.message)
 235             logger.error(traceback.format_exc())
 236             return Response(data={'error': 'TerminateVnf expection'}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 237
 238
 239 class QueryVnf(APIView):
 240     @swagger_auto_schema(
 241         responses={
 242             status.HTTP_200_OK: QueryVnfResponseSerializer(),
 243             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 244         }
 245     )
 246     def get(self, request, vnfmid, vnfInstanceId):
 247         try:
 248             logger.debug("[%s] request.data=%s", fun_name(), request.data)
 249             ret = get_vnfminfo_from_nslcm(vnfmid)
 250             if ret[0] != 0:
 251                 raise Exception(ret[1])
 252
 253             vnfm_info = json.JSONDecoder().decode(ret[1])
 254             logger.debug("[%s] vnfm_info=%s", fun_name(), vnfm_info)
 255             ret = restcall.call_req(
 256                 base_url=ignorcase_get(vnfm_info, "url"),
 257                 user=ignorcase_get(vnfm_info, "userName"),
 258                 passwd=ignorcase_get(vnfm_info, "password"),
 259                 auth_type=restcall.rest_no_auth,
 260                 resource="v1/vnfs/%s" % vnfInstanceId,
 261                 method='get',
 262                 content=json.JSONEncoder().encode({}))
 263             if ret[0] != 0:
 264                 raise Exception(ret[1])
 265
 266             resp = json.JSONDecoder().decode(ret[1])
 267             vnf_status = ignorcase_get(resp, "vnfinstancestatus")
 268             resp_data = {"vnfInfo": {"vnfStatus": vnf_status}}
 269             logger.debug("[%s]resp_data=%s", fun_name(), resp_data)
 270             queryVnfResponseSerializer = QueryVnfResponseSerializer(data=resp_data)
 271             if not queryVnfResponseSerializer.is_valid():
 272                 raise Exception(queryVnfResponseSerializer.errors)
 273             return Response(data=queryVnfResponseSerializer.data, status=status.HTTP_200_OK)
 274         except Exception as e:
 275             logger.error("Error occurred when querying VNF information,error:%s", e.message)
 276             logger.error(traceback.format_exc())
 277             return Response(data={'error': 'QueryVnf expection'}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 278
 279
 280 class JobView(APIView):
 281     @swagger_auto_schema(
 282         manual_parameters=[
 283             openapi.Parameter('responseId',
 284                               openapi.IN_QUERY,
 285                               "responseId",
 286                               type=openapi.TYPE_INTEGER
 287                               ),
 288         ],
 289         responses={
 290             status.HTTP_200_OK: JobQueryRespSerializer(),
 291             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 292         }
 293     )
 294     def get(self, request, vnfmid, jobid):
 295         try:
 296             logger.debug("[%s] request.data=%s", fun_name(), request.data)
 297             ret = get_vnfminfo_from_nslcm(vnfmid)
 298             if ret[0] != 0:
 299                 raise Exception(ret[1])
 300
 301             vnfm_info = json.JSONDecoder().decode(ret[1])
 302             logger.debug("[%s] vnfm_info=%s", fun_name(), vnfm_info)
 303             operation_status_url = '/v1/jobs/{jobId}?NFVOID={nfvoId}&VNFMID={vnfmId}&ResponseID={responseId}'
 304             responseId = ignorcase_get(request.GET, 'responseId')
 305             query_url = operation_status_url.format(jobId=jobid, nfvoId=1, vnfmId=vnfmid, responseId=responseId)
 306             ret = restcall.call_req(
 307                 base_url=ignorcase_get(vnfm_info, 'url'),
 308                 user=ignorcase_get(vnfm_info, 'userName'),
 309                 passwd=ignorcase_get(vnfm_info, 'password'),
 310                 auth_type=restcall.rest_no_auth,
 311                 resource=query_url,
 312                 method='get',
 313                 content={})
 314
 315             if ret[0] != 0:
 316                 raise Exception(ret[1])
 317
 318             resp_data = json.JSONDecoder().decode(ret[1])
 319             logger.debug("[%s]resp_data=%s", fun_name(), resp_data)
 320             jobQueryRespSerializer = JobQueryRespSerializer(data=resp_data)
 321             if not jobQueryRespSerializer.is_valid():
 322                 raise Exception(jobQueryRespSerializer.errors)
 323
 324             return Response(data=jobQueryRespSerializer.data, status=status.HTTP_200_OK)
 325         except Exception as e:
 326             logger.error("Error occurred when getting operation status information,error:%s", e.message)
 327             logger.error(traceback.format_exc())
 328             return Response(data={'error': 'QueryJob expection'}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 329
 330
 331 class GrantVnf(APIView):
 332     @swagger_auto_schema(
 333         request_body=GrantReqSerializer(),
 334         responses={
 335             status.HTTP_201_CREATED: GrantRespSerializer(),
 336             status.HTTP_500_INTERNAL_SERVER_ERROR: 'Internal error'
 337         }
 338     )
 339     def put(self, request):
 340         logger.debug("=====GrantVnf=====")
 341         try:
 342             logger.debug("request.data = %s", request.data)
 343             grantReqSerializer = GrantReqSerializer(data=request.data)
 344             if not grantReqSerializer.is_valid():
 345                 raise Exception(grantReqSerializer.errors)
 346
 347             logger.debug("grantReqSerializer.data = %s", grantReqSerializer.data)
 348             req_data = {
 349                 "vnfInstanceId": ignorcase_get(grantReqSerializer.data, "vnfistanceid"),
 350                 "vnfDescriptorId": "",
 351                 "addresource": [],
 352                 "additionalparam": {
 353                     "vnfmid": ignorcase_get(grantReqSerializer.data, "vnfmid"),
 354                     "vimid": ignorcase_get(grantReqSerializer.data, "vimid"),
 355                     "tenant": ignorcase_get(grantReqSerializer.data, "tenant")
 356                 }
 357             }
 358             if ignorcase_get(grantReqSerializer.data, "operationright") == 0:
 359                 req_data["lifecycleOperation"] = "Instantiate"
 360                 for vm in ignorcase_get(grantReqSerializer.data, "vmlist"):
 361                     for i in range(int(ignorcase_get(vm, "VMNumber"))):
 362                         req_data["addresource"].append(
 363                             {
 364                                 "type": "vdu",
 365                                 "resourceDefinitionId": i,
 366                                 "vdu": ignorcase_get(vm, "VMFlavor"),
 367                                 "vimid": ignorcase_get(vm, "vimid"),
 368                                 "tenant": ignorcase_get(vm, "tenant")})
 369
 370             logger.debug("req_data=%s", req_data)
 371             ret = req_by_msb('api/nslcm/v1/ns/grantvnf', "POST", content=json.JSONEncoder().encode(req_data))
 372             logger.info("ret = %s", ret)
 373             if ret[0] != 0:
 374                 raise Exception(ret[1])
 375
 376             resp = json.JSONDecoder().decode(ret[1])
 377             resp_data = {
 378                 'vimid': ignorcase_get(resp['vim'], 'vimid'),
 379                 'tenant': ignorcase_get(ignorcase_get(resp['vim'], 'accessinfo'), 'tenant')
 380             }
 381             logger.debug("[%s]resp_data=%s", fun_name(), resp_data)
 382             grantRespSerializer = GrantRespSerializer(data=resp_data)
 383             if not grantRespSerializer.is_valid():
 384                 raise Exception(grantRespSerializer.errors)
 385
 386             logger.debug("grantRespSerializer.data=%s", grantRespSerializer.data)
 387             return Response(data=grantRespSerializer.data, status=status.HTTP_201_CREATED)
 388         except Exception as e:
 389             logger.error("Error occurred in Grant VNF, error: %s", e.message)
 390             logger.error(traceback.format_exc())
 391             return Response(data={'error': 'Grant expection'}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 392
 393
 394 class Notify(APIView):
 395     @swagger_auto_schema(
 396         request_body=NotifyReqSerializer(),
 397         responses={
 398             status.HTTP_200_OK: 'Successfully',
 399             status.HTTP_500_INTERNAL_SERVER_ERROR: 'Internal error'
 400         }
 401     )
 402     def post(self, request):
 403         try:
 404             logger.debug("[%s]request.data = %s", fun_name(), request.data)
 405             notifyReqSerializer = NotifyReqSerializer(data=request.data)
 406             if not notifyReqSerializer.is_valid():
 407                 raise Exception(notifyReqSerializer.errors)
 408
 409             logger.debug("[%s]notifyReqSerializer.data = %s", fun_name(), notifyReqSerializer.data)
 410             req_data = {
 411                 "status": "result",
 412                 "vnfInstanceId": ignorcase_get(notifyReqSerializer.data, "vnfinstanceid"),
 413                 "vnfmId": ignorcase_get(notifyReqSerializer.data, "vnfmid"),
 414                 "vimId": ignorcase_get(notifyReqSerializer.data, "vimid"),
 415                 "operation": ignorcase_get(notifyReqSerializer.data, "EventType"),
 416                 "jobId": "notMust",
 417                 "affectedVl": [],
 418                 "affectedCp": [],
 419                 "affectedVirtualStorage": [],
 420                 "affectedVnfc": [],
 421             }
 422
 423             extension = ignorcase_get(notifyReqSerializer.data, "extension")
 424             openo_notification = ignorcase_get(extension, "openo_notification")
 425             if openo_notification:
 426                 affectedvnfcs = ignorcase_get(openo_notification, "affectedVnfc")
 427                 affectedvls = ignorcase_get(openo_notification, "affectedvirtuallink")
 428                 affectedcps = ignorcase_get(openo_notification, "affectedCp")
 429                 vnfdmodule = ignorcase_get(openo_notification, "vnfdmodule")
 430             else:
 431                 affectedvnfcs = ignorcase_get(ignorcase_get(notifyReqSerializer.data, "extension"), "affectedvnfc")
 432                 affectedvls = ignorcase_get(ignorcase_get(notifyReqSerializer.data, "extension"), "affectedvl")
 433                 affectedcps = ignorcase_get(ignorcase_get(notifyReqSerializer.data, "extension"), "affectedcp")
 434                 vnfdmodule = ignorcase_get(ignorcase_get(notifyReqSerializer.data, "extension"), "vnfdmodule")
 435
 436             req_data["vnfdmodule"] = vnfdmodule
 437
 438             for affectedvnfc in affectedvnfcs:
 439                 req_data["affectedVnfc"].append({
 440                     "vnfcInstanceId": ignorcase_get(affectedvnfc, "vnfcInstanceId"),
 441                     "vduId": ignorcase_get(affectedvnfc, "vduId"),
 442                     "changeType": ignorcase_get(affectedvnfc, "changeType"),
 443                     "vimId": ignorcase_get(ignorcase_get(affectedvnfc, "computeResource"), "vimId"),
 444                     "vmId": ignorcase_get(ignorcase_get(affectedvnfc, "computeResource"), "resourceId"),
 445                     "vmName": ignorcase_get(ignorcase_get(affectedvnfc, "computeResource"), "resourceName")
 446                 })
 447
 448             for affectedvl in affectedvls:
 449                 req_data["affectedVl"].append({
 450                     "vlInstanceId": ignorcase_get(affectedvl, "virtualLinkInstanceId"),
 451                     "changeType": ignorcase_get(affectedvl, "changeType"),
 452                     "vimId": ignorcase_get(ignorcase_get(affectedvl, "networkResource"), "vimId"),
 453                     "vldId": ignorcase_get(affectedvl, "virtuallinkdescid"),
 454                     "networkResource": {
 455                         "resourceType": "network",
 456                         "resourceId": ignorcase_get(ignorcase_get(affectedvl, "networkresource"), "resourceid"),
 457                         "resourceName": ignorcase_get(ignorcase_get(affectedvl, "networkresource"), "resourcename")
 458                     }
 459                 })
 460
 461             for affectedcp in affectedcps:
 462                 req_data["affectedCp"].append(affectedcp)
 463
 464             vnfmid = ignorcase_get(req_data, 'vnfmId')
 465             vnfInstanceId = ignorcase_get(req_data, 'vnfinstanceid')
 466             notify_url = 'api/nslcm/v1/ns/%s/vnfs/%s/Notify' % (vnfmid, vnfInstanceId)
 467             logger.debug("notify_url = %s", notify_url)
 468             logger.debug("req_data = %s", req_data)
 469             ret = req_by_msb(notify_url, "POST", content=json.JSONEncoder().encode(req_data))
 470
 471             logger.debug("[%s]data = %s", fun_name(), ret)
 472             if ret[0] != 0:
 473                 raise Exception(ret[1])
 474
 475             return Response(data=None, status=status.HTTP_200_OK)
 476         except Exception as e:
 477             logger.error("Error occurred in LCM notification,error: %s", e.message)
 478             logger.error(traceback.format_exc())
 479             return Response(data={'error': 'Notify expection'}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 480
 481
 482 class Scale(APIView):
 483     @swagger_auto_schema(
 484         request_body=ScaleReqSerializer(),
 485         responses={
 486             status.HTTP_202_ACCEPTED: InstScaleHealRespSerializer(),
 487             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 488         }
 489     )
 490     def post(self, request, vnfmid, vnfInstanceId):
 491         logger.debug("====scale_vnf===")
 492         try:
 493             logger.debug("request.data = %s", request.data)
 494             logger.debug("requested_url = %s", request.get_full_path())
 495             scaleReqSerializer = ScaleReqSerializer(data=request.data)
 496             if not scaleReqSerializer.is_valid():
 497                 raise Exception(scaleReqSerializer.errors)
 498
 499             ret = get_vnfminfo_from_nslcm(vnfmid)
 500             if ret[0] != 0:
 501                 raise Exception(ret[1])
 502
 503             vnfm_info = json.JSONDecoder().decode(ret[1])
 504             scale_type = ignorcase_get(scaleReqSerializer.data, "type")
 505             aspect_id = ignorcase_get(scaleReqSerializer.data, "aspectId")
 506             number_of_steps = ignorcase_get(scaleReqSerializer.data, "numberOfSteps")
 507             data = {
 508                 'vnfmid': vnfmid,
 509                 'nfvoid': 1,
 510                 'scaletype': '0' if scale_type == 'SCALE_OUT' else '1',
 511                 'vmlist': [{
 512                     'VMNumber': number_of_steps,
 513                     'VMFlavor': aspect_id
 514                 }],
 515                 'extension': ''
 516             }
 517
 518             logger.debug("data = %s", data)
 519             ret = restcall.call_req(
 520                 base_url=ignorcase_get(vnfm_info, "url"),
 521                 user=ignorcase_get(vnfm_info, "userName"),
 522                 passwd=ignorcase_get(vnfm_info, "password"),
 523                 auth_type=restcall.rest_no_auth,
 524                 resource='/v1/vnfs/{vnfInstanceID}/scale'.format(vnfInstanceID=vnfInstanceId),
 525                 method='put',  # POST
 526                 content=json.JSONEncoder().encode(data))
 527             logger.debug("ret=%s", ret)
 528             if ret[0] != 0:
 529                 raise Exception('scale error')
 530
 531             scaleRespSerializer = InstScaleHealRespSerializer(data=json.JSONDecoder().decode(ret[1]))
 532             if not scaleRespSerializer.is_valid():
 533                 raise Exception(scaleRespSerializer.errors)
 534
 535             logger.debug("scaleRespSerializer.data=%s", scaleRespSerializer.data)
 536             return Response(data=scaleRespSerializer.data, status=status.HTTP_202_ACCEPTED)
 537         except Exception as e:
 538             logger.error("Error occurred when scaling VNF,error:%s", e.message)
 539             logger.error(traceback.format_exc())
 540             return Response(data={'error': 'Scale expection'}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 541
 542
 543 class Heal(APIView):
 544     @swagger_auto_schema(
 545         request_body=HealReqSerializer(),
 546         responses={
 547             status.HTTP_202_ACCEPTED: InstScaleHealRespSerializer(),
 548             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 549         }
 550     )
 551     def post(self, request, vnfmid, vnfInstanceId):
 552         logger.debug("====heal_vnf===")
 553         try:
 554             logger.debug("request.data = %s", request.data)
 555             logger.debug("requested_url = %s", request.get_full_path())
 556             healReqSerializer = HealReqSerializer(data=request.data)
 557             if not healReqSerializer.is_valid():
 558                 raise Exception(healReqSerializer.errors)
 559
 560             logger.debug("healReqSerializer.data = %s", healReqSerializer.data)
 561             logger.debug("vnfmid = %s", vnfmid)
 562             ret = get_vnfminfo_from_nslcm(vnfmid)
 563             if ret[0] != 0:
 564                 raise Exception(ret[1])
 565
 566             vnfm_info = json.JSONDecoder().decode(ret[1])
 567             req_data = {
 568                 "action": ignorcase_get(healReqSerializer.data, 'action'),
 569                 "lifecycleoperation": "operate",
 570                 "isgrace": "force",
 571                 "affectedvm": [],
 572             }
 573             affectedvm = ignorcase_get(healReqSerializer.data, 'affectedvm')
 574             if isinstance(affectedvm, list):
 575                 req_data['affectedvm'] = affectedvm
 576             else:
 577                 req_data['affectedvm'].append(affectedvm)
 578
 579             logger.debug("req_data = %s", req_data)
 580             ret = restcall.call_req(
 581                 base_url=ignorcase_get(vnfm_info, "url"),
 582                 user=ignorcase_get(vnfm_info, "userName"),
 583                 passwd=ignorcase_get(vnfm_info, "password"),
 584                 auth_type=restcall.rest_no_auth,
 585                 resource='/api/v1/nf_m_i/nfs/{vnfInstanceID}/vms/operation'.format(vnfInstanceID=vnfInstanceId),
 586                 method='post',
 587                 content=json.JSONEncoder().encode(req_data))
 588             logger.debug("ret=%s", ret)
 589             if ret[0] != 0:
 590                 raise Exception('heal error')
 591
 592             healRespSerializer = InstScaleHealRespSerializer(data=json.JSONDecoder().decode(ret[1]))
 593             if not healRespSerializer.is_valid():
 594                 raise Exception(healRespSerializer.errors)
 595
 596             logger.debug("healRespSerializer.data=%s", healRespSerializer.data)
 597             return Response(data=healRespSerializer.data, status=status.HTTP_202_ACCEPTED)
 598         except Exception as e:
 599             logger.error("Error occurred when healing VNF,error:%s", e.message)
 600             logger.error(traceback.format_exc())
 601             return Response(data={'error': 'Heal expection'}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 602
 603
 604 def get_vdus(nf_model, aspect_id):
 605     associated_group = ''
 606     members = []
 607     vnf_flavours = nf_model['vnf_flavours']
 608     for vnf_flaour in vnf_flavours:
 609         scaling_aspects = vnf_flaour['scaling_aspects']
 610         for aspect in scaling_aspects:
 611             if aspect_id == aspect['id']:
 612                 associated_group = aspect['associated_group']
 613                 break
 614     if not associated_group:
 615         logger.error('Cannot find the corresponding element group')
 616         raise Exception('Cannot find the corresponding element group')
 617     for element_group in nf_model['element_groups']:
 618         if element_group['group_id'] == associated_group:
 619             members = element_group['members']
 620     if not members:
 621         logger.error('Cannot find the corresponding members')
 622         raise Exception('Cannot find the corresponding members')
 623     return members
 624
 625
 626 class SampleList(APIView):
 627     @swagger_auto_schema(
 628         responses={
 629             status.HTTP_200_OK: 'Successfully'})
 630     def get(self, request):
 631         logger.debug("get")
 632         return Response({"status": "active"})
 633
 634
 635 class Subscribe(APIView):
 636     @swagger_auto_schema(
 637         responses={
 638             status.HTTP_200_OK: SubscribesRespSerializer(),
 639             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 640         }
 641     )
 642     def get(self, request):
 643         logger.debug("====Subscribe get====")
 644         resp_data = {
 645             "subscriptions": [{
 646                 "subscribeid": "cdbddb00-452c-11e9-91e8-acc860114657",
 647                 "filter": [{
 648                     "vendor": "ZTE",
 649                     "type": "vCPE",
 650                 }],
 651                 "notificationuri": " https://127.0.0.1:80/v2/vnfm/vnfds/notification",
 652             }]
 653         }
 654         return Response(data=resp_data, status=status.HTTP_200_OK)
 655
 656     @swagger_auto_schema(
 657         request_body=SubscribeReqSerializer(),
 658         responses={
 659             status.HTTP_201_CREATED: SubscribeRespSerializer(),
 660             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 661         }
 662     )
 663     def post(self, request):
 664         logger.debug("====Subscribe post====")
 665         resp_data = {"subscribeid": "cdbddb00-452c-11e9-91e8-acc860114657"}
 666         return Response(data=resp_data, status=status.HTTP_201_CREATED)
 667
 668
 669 class SubscribeDetail(APIView):
 670     @swagger_auto_schema(
 671         responses={
 672             status.HTTP_204_NO_CONTENT: "None",
 673             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 674         }
 675     )
 676     def delete(self, request, subscribeId):
 677         logger.debug("====SubscribeDetail delete %s====", subscribeId)
 678         return Response(status=status.HTTP_204_NO_CONTENT)
 679
 680
 681 class VnfPkgs(APIView):
 682     @swagger_auto_schema(
 683         responses={
 684             status.HTTP_200_OK: VnfPkgsSerializer(),
 685             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 686         }
 687     )
 688     def get(self, request):
 689         logger.debug("====VnfPkgs get====")
 690         resp_data = {
 691             "data": [{
 692                 "packageid": "924fc980-4530-11e9-ae68-acc860114657",
 693                 "vendor": "ZTE",
 694                 "type": "vCPE",
 695                 "vnfdfile": "MRP6600_FS_SRIOV_4NIC_200W.zip",
 696                 "imagefiles": ["MRP6600_FS_SRIOV_MRPISU_IMGV500R008C20SPC030T.tar"],
 697                 "swfiles": ["MRP6600_SRV_V500R008C20SPC030T.tar"],
 698                 "description": "This is a service for vCPE.",
 699             }]
 700         }
 701         return Response(data=resp_data, status=status.HTTP_200_OK)
 702
 703
 704 class VnfPkg(APIView):
 705     @swagger_auto_schema(
 706         responses={
 707             status.HTTP_200_OK: "File stream for vnf pkg file",
 708             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 709         }
 710     )
 711     def get(self, request, packageId, fileName):
 712         logger.debug("====VnfPkg get====%s, %s", packageId, fileName)
 713         file_range = request.META.get('RANGE')
 714         logger.debug('file_range: %s' % file_range)
 715         # TODO: get filepath
 716         local_file_path = fileName
 717         start, end = parse_file_range(local_file_path, file_range)
 718         file_iterator = read(local_file_path, start, end)
 719         return StreamingHttpResponse(file_iterator, status=status.HTTP_200_OK)
 720
 721
 722 class NfvoInfo(APIView):
 723     @swagger_auto_schema(
 724         request_body=NfvoInfoReqSerializer(),
 725         responses={
 726             status.HTTP_200_OK: "Update successfully",
 727             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 728         }
 729     )
 730     def put(self, request, vnfmid):
 731         logger.debug("====NfvoInfo put====%s", vnfmid)
 732         req_data = {
 733             "nfvoid": request.data.get("nfvoid", "1"),
 734             "vnfmid": vnfmid,
 735             "nfvourl": request.data.get("nfvourl", "http://127.0.0.1:80")
 736         }
 737         ret = get_vnfminfo_from_nslcm(vnfmid)
 738         if ret[0] != 0:
 739             return Response(data={'error': ret[1]}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 740
 741         vnfm_info = json.JSONDecoder().decode(ret[1])
 742         logger.debug("[%s] vnfm_info=%s", fun_name(), vnfm_info)
 743         ret = restcall.call_req(
 744             base_url=ignorcase_get(vnfm_info, "url"),
 745             user=ignorcase_get(vnfm_info, "userName"),
 746             passwd=ignorcase_get(vnfm_info, "password"),
 747             auth_type=restcall.rest_no_auth,
 748             resource="v1/nfvo/info",
 749             method='put',
 750             content=json.dumps(req_data))
 751         if ret[0] != 0:
 752             return Response(data={'error': ret[1]}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 753         logger.debug("update nfvo info successfully.")
 754         return Response(data={}, status=status.HTTP_200_OK)
 755
 756
 757 class HealthCheckView(APIView):
 758     @swagger_auto_schema(
 759         responses={
 760             status.HTTP_200_OK: 'Active'})
 761     def get(self, request, format=None):
 762         logger.debug("HealthCheck")
 763         return Response({"status": "active"})