def reader(self, iter_hook=None, keep_cache=False):
"""
Return a :class:`swift.common.swob.Response` class compatible
"`app_iter`" object as defined by
:class:`swift.obj.diskfile.DiskFileReader`.
For this implementation, the responsibility of closing the open file
is passed to the :class:`swift.obj.diskfile.DiskFileReader` object.
:param iter_hook: called when __iter__ returns a chunk
:param keep_cache: caller's preference for keeping data read in the
OS buffer cache
:returns: a :class:`swift.obj.diskfile.DiskFileReader` object
"""
if self._metadata is None:
raise DiskFileNotOpen()
dr = DiskFileReader(self._fd,
self._threadpool,
self._mgr.disk_chunk_size,
self._obj_size,
self._mgr.keep_cache_size,
iter_hook=iter_hook,
keep_cache=keep_cache)
# At this point the reader object is now responsible for closing
# the file pointer.
self._fd = None
return dr
def get_metadata(self):
"""
Provide the metadata for an object as a dictionary.
:returns: object's metadata dictionary
"""
if self._metadata is None:
raise DiskFileNotOpen()
return self._metadata
def get_metadata(self):
"""
Provide the metadata for a previously opened object as a dictionary.
:returns: object's metadata dictionary
:raises DiskFileNotOpen: if the
:func:`swift.obj.diskfile.DiskFile.open` method was not previously
invoked
"""
if self._metadata is None:
raise DiskFileNotOpen()
return self._metadata
def __enter__(self):
"""
Context enter.
.. note::
An implemenation shall raise `DiskFileNotOpen` when has not
previously invoked the :func:`swift.obj.diskfile.DiskFile.open`
method.
"""
if self._metadata is None:
raise DiskFileNotOpen()
return self
def get_metadata(self):
"""
Provide the metadata for a previously opened object as a dictionary.
This is invoked by Swift code in the GET path as follows:
with disk_file.open():
metadata = disk_file.get_metadata()
:returns: object's metadata dictionary
:raises DiskFileNotOpen: if the
:func:`swift.obj.diskfile.DiskFile.open` method was not previously
invoked
"""
if not self._disk_file_open:
raise DiskFileNotOpen()
return self._metadata
def reader(self, iter_hook=None, keep_cache=False):
"""
Return a swift.common.swob.Response class compatible "app_iter"
object. The responsibility of closing the open file is passed to the
DiskFileReader object.
:param iter_hook:
:param keep_cache:
"""
if self._metadata is None:
raise DiskFileNotOpen()
dr = DiskFileReader(self._fs,
self._name,
int(self._metadata['Content-Length']),
self._metadata['ETag'],
iter_hook=iter_hook)
return dr
def content_type(self):
if self._metadata is None:
raise DiskFileNotOpen()
return self._metadata.get('Content-Type')
def timestamp(self):
if self._metadata is None:
raise DiskFileNotOpen()
return Timestamp(self._metadata.get('X-Timestamp'))
def __enter__(self):
if self._metadata is None:
raise DiskFileNotOpen()
return self
def get_datafile_metadata(self):
'''gluster swift dont have seperate data,meta files '''
if self._metadata is None:
raise DiskFileNotOpen()
return self._metadata
def content_type_timestamp(self):
if self._metadata is None:
raise DiskFileNotOpen()
t = self._metadata.get('Content-Type-Timestamp') or \
self._metadata.get(X_TIMESTAMP)
return Timestamp(t)
def content_type(self):
if self._metadata is None:
raise DiskFileNotOpen()
return self._metadata.get(X_CONTENT_TYPE)
def timestamp(self):
if self._metadata is None:
raise DiskFileNotOpen()
return Timestamp(self._metadata.get(X_TIMESTAMP))
