def _get_metadata(self, swift_container, obj_name):
"""
Retrieves the swift metadata from the local cached object.
:param swift_container: container name (microcontroller or dependency)
:param object_name: object name
:returns: swift metadata dictionary
"""
cached_target_obj = os.path.join(self.conf["cache_dir"], self.scope,
'vertigo', swift_container, obj_name)
metadata = get_object_metadata(cached_target_obj)
return metadata
def _get_metadata(self, swift_container, obj_name):
"""
Retrieves the swift metadata from the local cached object.
:param swift_container: container name (microcontroller or dependency)
:param object_name: object name
:returns: swift metadata dictionary
"""
cached_target_obj = os.path.join(self.conf["cache_dir"], self.scope,
'vertigo', swift_container, obj_name)
metadata = get_object_metadata(cached_target_obj)
return metadata
def _update_from_cache(self, mc_main, swift_container, obj_name):
"""
Updates the tenant microcontroller folder from the local cache.
:param mc_main: main class of the microcontroller
:param swift_container: container name (microcontroller or dependency)
:param object_name: Name of the microcontroller or dependency
"""
# if enter to this method means that the objects exist in cache
cached_target_obj = os.path.join(self.conf["cache_dir"], self.scope,
'vertigo', swift_container, obj_name)
docker_target_dir = os.path.join(
self.conf["mc_dir"], self.scope, mc_main)
docker_target_obj = os.path.join(docker_target_dir, obj_name)
update_from_cache = False
if not os.path.exists(docker_target_dir):
os.makedirs(docker_target_dir, 0o777)
update_from_cache = True
elif not os.path.isfile(docker_target_obj):
update_from_cache = True
else:
cached_obj_metadata = get_object_metadata(cached_target_obj)
docker_obj_metadata = get_object_metadata(docker_target_obj)
cached_obj_tstamp = float(cached_obj_metadata['X-Timestamp'])
docker_obj_tstamp = float(docker_obj_metadata['X-Timestamp'])
if cached_obj_tstamp > docker_obj_tstamp:
update_from_cache = True
if update_from_cache:
self.logger.info('Vertigo - Going to update from cache: ' +
swift_container + '/' + obj_name)
copy2(cached_target_obj, docker_target_obj)
metadata = get_object_metadata(cached_target_obj)
set_object_metadata(docker_target_obj, metadata)
def _update_from_cache(self, mc_main, swift_container, obj_name):
"""
Updates the tenant microcontroller folder from the local cache.
:param mc_main: main class of the microcontroller
:param swift_container: container name (microcontroller or dependency)
:param object_name: Name of the microcontroller or dependency
"""
# if enter to this method means that the objects exist in cache
cached_target_obj = os.path.join(self.conf["cache_dir"], self.scope,
'vertigo', swift_container, obj_name)
docker_target_dir = os.path.join(
self.conf["mc_dir"], self.scope, mc_main)
docker_target_obj = os.path.join(docker_target_dir, obj_name)
update_from_cache = False
if not os.path.exists(docker_target_dir):
os.makedirs(docker_target_dir, 0o777)
update_from_cache = True
elif not os.path.isfile(docker_target_obj):
update_from_cache = True
else:
cached_obj_metadata = get_object_metadata(cached_target_obj)
docker_obj_metadata = get_object_metadata(docker_target_obj)
cached_obj_tstamp = float(cached_obj_metadata['X-Timestamp'])
docker_obj_tstamp = float(docker_obj_metadata['X-Timestamp'])
if cached_obj_tstamp > docker_obj_tstamp:
update_from_cache = True
if update_from_cache:
self.logger.info('Vertigo - Going to update from cache: ' +
swift_container + '/' + obj_name)
copy2(cached_target_obj, docker_target_obj)
metadata = get_object_metadata(cached_target_obj)
set_object_metadata(docker_target_obj, metadata)
