def get_leancloud_proxies(self):
"""
返回不可用的或者正在使用的代理
"""
query = Query(ProxyNode)
query.select('proxy')
query.contained_in('state', [1, 2, 3])
try:
unavailables = query.find()
except LeanCloudError as e:
logger.error(e)
raise CloseSpider('leancloud cannot reach')
# TODO: list to dict
# key in dict/list
unavailables_list = []
for i in unavailables:
unavailables_list.append(i.get('proxy'))
unavailables_set = set(unavailables_list)
return unavailables_set
