def _read_metadata(dd):
""" Filter read metadata so that it always returns a tuple that includes
some kind of timestamp. With 1.4.8 of the Swift integration the
timestamps were not stored. Here we fabricate timestamps for volumes
where the existing data has no timestamp (that is, stored data is not
a tuple), allowing us a measure of backward compatibility.
FIXME: At this time it does not appear that the timestamps on each
metadata are used for much, so this should not hurt anything.
"""
metadata_i = read_metadata(dd)
metadata = {}
timestamp = 0
for key, value in metadata_i.iteritems():
if not isinstance(value, tuple):
value = (value, timestamp)
metadata[key] = value
return metadata
def get_container_timestamp(self, container):
cont_path = os.path.join(self.datadir, container)
metadata = read_metadata(cont_path)
return int(metadata.get(X_PUT_TIMESTAMP, ('0',0))[0]) or None
def __init__(self, path, device, partition, account, container, obj,
logger, keep_data_fp=False, disk_chunk_size=65536,
uid=DEFAULT_UID, gid=DEFAULT_GID, iter_hook=None):
self.iter_hook = iter_hook
self.disk_chunk_size = disk_chunk_size
obj = obj.strip('/')
if '/' in obj:
self.obj_path, self.obj = obj.rsplit('/', 1)
else:
self.obj_path = ''
self.obj = obj
if self.obj_path:
self.name = '/'.join((container, self.obj_path))
else:
self.name = container
#Absolute path for obj directory.
self.datadir = os.path.join(path, device, self.name)
self.device_path = os.path.join(path, device)
self.container_path = os.path.join(path, device, container)
self.cntpath = os.path.join(path, device, container)
self.tmpdir = os.path.join(path, device, 'tmp')
self.logger = logger
self.metadata = {}
self.data_file = None
self.fp = None
self.iter_etag = None
self.started_at_0 = False
self.read_to_eof = False
self.quarantined_dir = None
self.keep_cache = False
self.is_dir = False
self.is_valid = True
self.uid = int(uid)
self.gid = int(gid)
self.data_file = os.path.join(self.datadir, self.obj)
self.fhr_path = parent_path(self.data_file)
self.cnt_flag = self.cnt_exists()
if not self.cnt_flag:
return
if not os.path.exists(self.datadir + '/' + self.obj):
return
if os.path.isdir(self.datadir + '/' + self.obj):
self.is_dir = True
else:
self.fp = do_open(self.data_file, 'rb')
if not keep_data_fp:
self.close(verify_file=False)
self.metadata = read_metadata(self.datadir + '/' + self.obj)
if not self.metadata:
create_object_metadata(self.datadir + '/' + self.obj)
self.metadata = read_metadata(self.datadir + '/' + self.obj)
if not validate_object(self.metadata):
create_object_metadata(self.datadir + '/' + self.obj)
self.metadata = read_metadata(self.datadir + '/' +
self.obj)
self.filter_metadata()
