def from_result(cls, container, result):
"""Create from ambiguous result."""
if result is None:
raise errors.NoObjectException
elif cls.is_prefix(result):
return cls.from_prefix(container, result)
elif cls.is_key(result):
return cls.from_key(container, result)
raise errors.CloudException("Unknown boto result type: %s" % type(result))
def _get_object_infos(self,
path,
marker=None,
limit=settings.CLOUD_BROWSER_DEFAULT_LIST_LIMIT):
"""Get raw object infos (single-shot)."""
# Adjust limit to +1 to handle marker object as first result.
# We can get in to this situation for a marker of "foo", that will
# still return a 'subdir' object of "foo/" because of the extra
# slash.
orig_limit = limit
limit += 1
# Enforce maximum object size.
if limit > RS_MAX_LIST_OBJECTS_LIMIT:
raise errors.CloudException("Object limit must be less than %s" %
RS_MAX_LIST_OBJECTS_LIMIT)
def _collapse(infos):
"""Remove duplicate dummy / implied objects."""
name = None
for info in infos:
name = info.get("name", name)
subdir = info.get("subdir", "").strip(SEP)
if not name or subdir != name:
yield info
path = path + SEP if path else ""
object_infos = self.native_container.list_objects_info(limit=limit,
delimiter=SEP,
prefix=path,
marker=marker)
full_query = len(object_infos) == limit
if object_infos:
# Check first object for marker match and truncate if so.
if marker and object_infos[0].get("subdir",
"").strip(SEP) == marker:
object_infos = object_infos[1:]
# Collapse subdirs and dummy objects.
object_infos = list(_collapse(object_infos))
# Adjust to original limit.
if len(object_infos) > orig_limit:
object_infos = object_infos[:orig_limit]
return object_infos, full_query