vimhandler/views.py

   1 #
   2 #   Copyright 2018 CNIT - Consorzio Nazionale Interuniversitario per le Telecomunicazioni
   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  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 from django.shortcuts import render, redirect
  18 from django.contrib.auth.decorators import login_required
  19 from django.http import JsonResponse
  20 from lib.osm.osmclient.client import Client
  21 import yaml
  22 import logging
  23
  24 logging.basicConfig(level=logging.DEBUG)
  25 log = logging.getLogger('view.py')
  26
  27 @login_required
  28 def list(request):
  29     client = Client()
  30     result = client.vim_list()
  31     print result
  32     result = {
  33         "datacenters": result
  34     }
  35     return __response_handler(request, result, 'vim_list.html')
  36
  37 @login_required
  38 def create(request):
  39     result = {}
  40     if request.method == 'GET':
  41         return __response_handler(request, result, 'vim_create.html')
  42     else:
  43         new_vim_dict = request.POST.dict()
  44         client = Client()
  45         keys = ["schema_version",
  46                 "schema_type",
  47                 "name",
  48                 "vim_url",
  49                 "vim_type",
  50                 "vim_user",
  51                 "vim_password",
  52                 "vim_tenant_name",
  53                 "description"]
  54         vim_data = dict(filter(lambda i: i[0] in keys and len(i[1]) > 0, new_vim_dict.items()))
  55         vim_data['config']={}
  56         for k,v in new_vim_dict.items():
  57             if str(k).startswith('config_') and len(v) > 0:
  58                 config_key = k[7:]
  59                 vim_data['config'][config_key] = v
  60         if 'additional_conf' in new_vim_dict:
  61             try:
  62                 additional_conf_dict = yaml.safe_load(new_vim_dict['additional_conf'])
  63                 for k,v in additional_conf_dict.items():
  64                     vim_data['config'][k] = v
  65             except Exception as e:
  66                 # TODO return error on json.loads exception
  67                 print e
  68         result = client.vim_create(vim_data)
  69         # TODO  'vim:show', to_redirect=True, vim_id=vim_id
  70         return __response_handler(request, result, 'vim:list', to_redirect=True)
  71
  72 @login_required
  73 def delete(request, vim_id=None):
  74     try:
  75         client = Client()
  76         del_res = client.vim_delete(vim_id)
  77     except Exception as e:
  78         log.exception(e)
  79     return __response_handler(request, {}, 'vim:list', to_redirect=True)
  80
  81 @login_required
  82 def show(request, vim_id=None):
  83     client = Client()
  84     datacenter = client.vim_get(vim_id)
  85     print datacenter
  86     return __response_handler(request, {
  87         "datacenter": datacenter
  88     }, 'vim_show.html')
  89
  90
  91 def __response_handler(request, data_res, url=None, to_redirect=None, *args, **kwargs):
  92     raw_content_types = request.META.get('HTTP_ACCEPT', '*/*').split(',')
  93     if 'application/json' in raw_content_types:
  94         return JsonResponse(data_res)
  95     elif to_redirect:
  96         return redirect(url, *args, **kwargs)
  97     else:
  98         return render(request, url, data_res)