本文整理匯總了Python中swiftclient.Connection.close方法的典型用法代碼示例。如果您正苦於以下問題：Python Connection.close方法的具體用法？Python Connection.close怎麽用？Python Connection.close使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類swiftclient.Connection的用法示例。
在下文中一共展示了Connection.close方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: PCABackend
# 需要導入模塊: from swiftclient import Connection [as 別名]
# 或者: from swiftclient.Connection import close [as 別名]
#.........這裏部分代碼省略.........
# This folds the null prefix and all null parts, which means that:
# //MyContainer/ and //MyContainer are equivalent.
# //MyContainer//My/Prefix/ and //MyContainer/My/Prefix are equivalent.
url_parts = [x for x in parsed_url.path.split('/') if x != '']
self.container = url_parts.pop(0)
if url_parts:
self.prefix = '%s/' % '/'.join(url_parts)
else:
self.prefix = ''
policy = 'PCA'
policy_header = 'X-Storage-Policy'
container_metadata = None
try:
self.conn = Connection(**self.conn_kwargs)
container_metadata = self.conn.head_container(self.container)
except ClientException:
pass
except Exception as e:
log.FatalError("Connection failed: %s %s"
% (e.__class__.__name__, str(e)),
log.ErrorCode.connection_failed)
if container_metadata is None:
log.Info("Creating container %s" % self.container)
try:
headers = dict([[policy_header, policy]])
self.conn.put_container(self.container, headers=headers)
except Exception as e:
log.FatalError("Container creation failed: %s %s"
% (e.__class__.__name__, str(e)),
log.ErrorCode.connection_failed)
elif policy and container_metadata[policy_header.lower()] != policy:
log.FatalError("Container '%s' exists but its storage policy is '%s' not '%s'."
% (self.container, container_metadata[policy_header.lower()], policy))
def _error_code(self, operation, e):
if isinstance(e, self.resp_exc):
if e.http_status == 404:
return log.ErrorCode.backend_not_found
def _put(self, source_path, remote_filename):
self.conn.put_object(self.container, self.prefix + remote_filename,
file(source_path.name))
def _get(self, remote_filename, local_path):
body = self.preprocess_download(remote_filename, 60)
if body:
with open(local_path.name, 'wb') as f:
for chunk in body:
f.write(chunk)
def _list(self):
headers, objs = self.conn.get_container(self.container, full_listing=True, path=self.prefix)
# removes prefix from return values. should check for the prefix ?
return [o['name'][len(self.prefix):] for o in objs]
def _delete(self, filename):
self.conn.delete_object(self.container, self.prefix + filename)
def _query(self, filename):
sobject = self.conn.head_object(self.container, self.prefix + filename)
return {'size': int(sobject['content-length'])}
def preprocess_download(self, remote_filename, retry_period, wait=True):
body = self.unseal(remote_filename)
try:
if wait:
while not body:
time.sleep(retry_period)
self.conn = self.conn_cls(**self.conn_kwargs)
body = self.unseal(remote_filename)
self.conn.close()
except Exception as e:
log.FatalError("Connection failed: %s %s" % (e.__class__.__name__, str(e)),
log.ErrorCode.connection_failed)
return body
def unseal(self, remote_filename):
try:
_, body = self.conn.get_object(self.container, self.prefix + remote_filename,
resp_chunk_size=1024)
log.Info("File %s was successfully unsealed." % remote_filename)
return body
except self.resp_exc as e:
# The object is sealed but being released.
if e.http_status == 429:
# The retry-after header contains the remaining duration before
# the unsealing operation completes.
duration = int(e.http_response_headers['Retry-After'])
m, s = divmod(duration, 60)
h, m = divmod(m, 60)
eta = "%dh%02dm%02ds" % (h, m, s)
log.Info("File %s is being unsealed, operation ETA is %s." %
(remote_filename, eta))
else:
raise