def get_location_from_uri(uri):
"""
Given a URI, return a Location object that has had an appropriate
store parse the URI.
:param uri: A URI that could come from the end-user in the Location
attribute/header
Example URIs:
https://user:[email protected]:80/images/some-id
http://images.oracle.com/123456
swift://example.com/container/obj-id
swift://user:account:[email protected]/container/obj-id
swift+http://user:account:[email protected]/container/obj-id
s3://accesskey:[email protected]/bucket/key-id
s3+https://accesskey:[email protected]/bucket/key-id
file:///var/lib/glance/images/1
"""
pieces = urlparse.urlparse(uri)
if pieces.scheme not in SCHEME_TO_CLS_MAP.keys():
raise exception.UnknownScheme(pieces.scheme)
scheme_info = SCHEME_TO_CLS_MAP[pieces.scheme]
return Location(pieces.scheme,
uri=uri,
store_location_class=scheme_info['location_class'])
def get_store_from_scheme(scheme):
"""
Given a scheme, return the appropriate store object
for handling that scheme
"""
if scheme not in location.SCHEME_TO_STORE_MAP:
raise exception.UnknownScheme(scheme=scheme)
return STORES[location.SCHEME_TO_STORE_MAP[scheme]]
def get_from_backend(self, context, location):
try:
scheme = location[:location.find('/') - 1]
if scheme == 'unknown':
raise exception.UnknownScheme(scheme=scheme)
return self.data[location]
except KeyError:
raise exception.NotFound()
def get_store_from_scheme(scheme):
"""
Given a scheme, return the appropriate store object
for handling that scheme.
"""
if scheme not in location.SCHEME_TO_CLS_MAP:
raise exception.UnknownScheme(scheme=scheme)
scheme_info = location.SCHEME_TO_CLS_MAP[scheme]
return STORES[scheme_info['store_class']]
def get_store_from_scheme(context, scheme, loc=None, configure=True):
"""
Given a scheme, return the appropriate store object
for handling that scheme.
"""
if scheme not in location.SCHEME_TO_CLS_MAP:
raise exception.UnknownScheme(scheme=scheme)
scheme_info = location.SCHEME_TO_CLS_MAP[scheme]
store = scheme_info['store_class'](context, loc, configure)
return store
