def get_provider(platform_name, provider_type, event_handler):
for provider in CONF.providers:
cls = utils.load_class(provider)
if (cls.platform == platform_name
and issubclass(cls, PROVIDER_TYPE_MAP[provider_type])):
return cls(event_handler)
raise exception.NotFound(
"Provider not found for: %(platform_name)s, %(provider_type)s" % {
"platform_name": platform_name,
"provider_type": provider_type
})
def get_available_providers():
providers = {}
for provider in CONF.providers:
cls = utils.load_class(provider)
for provider_type, provider_class in PROVIDER_TYPE_MAP.items():
provider_data = providers.get(cls.platform, {})
provider_types = provider_data.get("types", [])
if (provider_class in cls.__bases__
and provider_type not in provider_types):
provider_types.append(provider_type)
provider_data["types"] = sorted(provider_types)
providers[cls.platform] = provider_data
return providers
def get_provider(
platform_name, provider_type, event_handler, raise_if_not_found=True):
for provider in CONF.providers:
cls = utils.load_class(provider)
parent = PROVIDER_TYPE_MAP.get(provider_type)
if not parent:
continue
if (cls.platform == platform_name and issubclass(cls, parent)):
return cls(event_handler)
if raise_if_not_found:
raise exception.NotFound(
"Provider not found for: %(platform_name)s, %(provider_type)s" %
{"platform_name": platform_name, "provider_type": provider_type})
return None