def _object_in_remote_container(self, name, sync_to, user_key, realm,
realm_key, timestamp):
"""
Performs head object on remote to eliminate extra remote put and
local get object calls
:param name: The name of the object in the updated row in the local
database triggering the sync update.
:param sync_to: The URL to the remote container.
:param user_key: The X-Container-Sync-Key to use when sending requests
to the other container.
:param realm: The realm from self.realms_conf, if there is one.
If None, fallback to using the older allowed_sync_hosts
way of syncing.
:param realm_key: The realm key from self.realms_conf, if there
is one. If None, fallback to using the older
allowed_sync_hosts way of syncing.
:param timestamp: last modified date of local object
:returns: True if object already exists in remote
"""
headers = {'x-timestamp': timestamp.internal}
self._update_sync_to_headers(name, sync_to, user_key, realm, realm_key,
'HEAD', headers)
try:
metadata, _ = head_object(sync_to,
name=name,
headers=headers,
proxy=self.select_http_proxy(),
logger=self.logger,
retries=0)
remote_ts = Timestamp(metadata.get('x-timestamp', 0))
self.logger.debug("remote obj timestamp %s local obj %s" %
(timestamp.internal, remote_ts.internal))
if timestamp <= remote_ts:
return True
# Object in remote should be updated
return False
except ClientException as http_err:
# Object not in remote
if http_err.http_status == 404:
return False
raise http_err
def _object_in_remote_container(self, name, sync_to, user_key,
realm, realm_key, timestamp):
"""
Performs head object on remote to eliminate extra remote put and
local get object calls
:param name: The name of the object in the updated row in the local
database triggering the sync update.
:param sync_to: The URL to the remote container.
:param user_key: The X-Container-Sync-Key to use when sending requests
to the other container.
:param realm: The realm from self.realms_conf, if there is one.
If None, fallback to using the older allowed_sync_hosts
way of syncing.
:param realm_key: The realm key from self.realms_conf, if there
is one. If None, fallback to using the older
allowed_sync_hosts way of syncing.
:param timestamp: last modified date of local object
:returns: True if object already exists in remote
"""
headers = {'x-timestamp': timestamp.internal}
self._update_sync_to_headers(name, sync_to, user_key, realm,
realm_key, 'HEAD', headers)
try:
metadata, _ = head_object(sync_to, name=name,
headers=headers,
proxy=self.select_http_proxy(),
logger=self.logger,
retries=0)
remote_ts = Timestamp(metadata.get('x-timestamp', 0))
self.logger.debug("remote obj timestamp %s local obj %s" %
(timestamp.internal, remote_ts.internal))
if timestamp <= remote_ts:
return True
# Object in remote should be updated
return False
except ClientException as http_err:
# Object not in remote
if http_err.http_status == 404:
return False
raise http_err
