def load(self, entity_id):
"""
Loads the metadata of a Service Provider.
Args:
entity_id (str): Entity id of the SP (usually a URL or a URN).
Returns:
A ServiceProviderMetadata instance.
Raises
MetadataNotFoundError: If there is no metadata associated to
the entity id.
DeserializationError: If the metadata associated to the entity id
is not valid.
"""
entity_id = entity_id.strip()
fresh_metadata = None
metadata = self._metadata.get(entity_id, None)
if not metadata:
# Try to reload all sources to see if the unknown entity id was added there
# somewhere.
logger.debug(
"Unknown entityId '{}`, reloading all the sources.".format(
entity_id))
self._index_metadata()
else:
# We got an known entity id, try to load its metadata the previously known
# location.
try:
fresh_metadata = metadata.loader.load(metadata.location)
if fresh_metadata.entity_id != entity_id:
raise MetadataLoadError
except MetadataLoadError as e:
logger.debug(
("{}\n"
"Cannot find entityId '{}` at its previous location '{}`"
"reloading all the sources").format(
e, entity_id, metadata.location))
self._index_metadata()
if not fresh_metadata:
try:
metadata = self._metadata[entity_id]
fresh_metadata = metadata.loader.load(metadata.location)
except (KeyError, MetadataLoadError):
raise MetadataNotFoundError(entity_id)
if metadata.entity_id != entity_id:
raise MetadataNotFoundError(entity_id)
try:
self._validators.validate(fresh_metadata.xml)
except ValidationError as e:
raise DeserializationError(fresh_metadata.xml, e.details)
return fresh_metadata
def get(self, entity_id):
entity_id = entity_id.strip()
for loader in self._loaders:
try:
metadata = loader.get(entity_id)
try:
self._validators.validate(metadata.xml)
return metadata
except ValidationError as e:
raise DeserializationError(metadata.xml, e.details)
except MetadataNotFoundError:
continue
raise MetadataNotFoundError(entity_id)
def get(self, entity_id):
try:
return self._metadata[entity_id]
except KeyError:
raise MetadataNotFoundError(entity_id)
def get(self, entity_id):
metadata = self._provider.get(entity_id)
if metadata is None:
raise MetadataNotFoundError(entity_id)
return ServiceProviderMetadata(metadata)
