def download(self, context, url_parts, dst_path, *args, **kwargs):
if not self.glance_is_local():
raise nova_exception.NovaException("Cannot use direct_url to"
" download, cause glance is not as this az.")
try:
connection = self.get_connection(url_parts)
resp_headers, resp_body = connection.get_object(
container=self.container, obj=self.obj,
resp_chunk_size=self.CHUNKSIZE)
except:
LOG.exception("Fail to download image by direct_url.")
raise
direct_io.write(dst_path, resp_body)
def download(self, context, url_parts, dst_path, *args, **kwargs):
if not self.glance_is_local():
raise nova_exception.NovaException(
"Cannot use direct_url to"
" download, cause glance is not as this az.")
try:
connection = self.get_connection(url_parts)
resp_headers, resp_body = connection.get_object(
container=self.container,
obj=self.obj,
resp_chunk_size=self.CHUNKSIZE)
except:
LOG.exception("Fail to download image by direct_url.")
raise
direct_io.write(dst_path, resp_body)
def download(self, context, image_id, data=None, dst_path=None):
"""Calls out to Glance for data and writes data."""
if CONF.glance.allowed_direct_url_schemes and dst_path is not None:
image = self.show(context, image_id, include_locations=True)
for entry in image.get('locations', []):
loc_url = entry['url']
loc_meta = entry['metadata']
o = urlparse.urlparse(loc_url)
xfer_mod = self._get_transfer_module(o.scheme)
if xfer_mod:
try:
xfer_mod.download(context, o, dst_path, loc_meta)
msg = _("Successfully transferred "
"using %s") % o.scheme
LOG.info(msg)
return
except Exception as ex:
LOG.exception(ex)
try:
image_chunks = self._client.call(context, 1, 'data', image_id)
except Exception:
glance._reraise_translated_image_exception(image_id)
close_file = False
if data is None and dst_path:
direct_io.write(dst_path, image_chunks)
return
if data is None:
return image_chunks
else:
try:
for chunk in image_chunks:
data.write(chunk)
finally:
if close_file:
data.close()
def download(self, context, image_id, data=None, dst_path=None):
"""Calls out to Glance for data and writes data."""
if CONF.glance.allowed_direct_url_schemes and dst_path is not None:
image = self.show(context, image_id, include_locations=True)
for entry in image.get('locations', []):
loc_url = entry['url']
loc_meta = entry['metadata']
o = urlparse.urlparse(loc_url)
xfer_mod = self._get_transfer_module(o.scheme)
if xfer_mod:
try:
xfer_mod.download(context, o, dst_path, loc_meta)
msg = _("Successfully transferred "
"using %s") % o.scheme
LOG.info(msg)
return
except Exception as ex:
LOG.exception(ex)
try:
image_chunks = self._client.call(context, 1, 'data', image_id)
except Exception:
glance._reraise_translated_image_exception(image_id)
close_file = False
if data is None and dst_path:
direct_io.write(dst_path, image_chunks)
return
if data is None:
return image_chunks
else:
try:
for chunk in image_chunks:
data.write(chunk)
finally:
if close_file:
data.close()
