def _get_container_info(self, instance, log_name, publish):
try:
log_info = self._log_action(instance, log_name, publish=publish)
container = log_info.container
prefix = log_info.prefix
metadata_file = log_info.metafile
return container, prefix, metadata_file
except swift_client.ClientException as ex:
if ex.http_status == 404:
raise exceptions.GuestLogNotFoundError()
raise
def _log_generator(instance, log_name, lines, swift):
try:
container, prefix, metadata_file = self._get_container_info(
instance, log_name)
head, body = swift.get_container(container, prefix=prefix)
log_obj_to_display = []
if lines:
total_lines = lines
partial_results = False
parts = sorted(body,
key=lambda obj: obj['last_modified'],
reverse=True)
for part in parts:
obj_hdrs = swift.head_object(container, part['name'])
obj_lines = int(obj_hdrs['x-object-meta-lines'])
log_obj_to_display.insert(0, part)
if obj_lines >= lines:
partial_results = True
break
lines -= obj_lines
if not partial_results:
lines = total_lines
part = log_obj_to_display.pop(0)
hdrs, log_obj = swift.get_object(container, part['name'])
log_by_lines = log_obj.decode().splitlines()
yield "\n".join(log_by_lines[-1 * lines:]) + "\n"
else:
# Show all the logs
log_obj_to_display = sorted(
body, key=lambda obj: obj['last_modified'])
for log_part in log_obj_to_display:
headers, log_obj = swift.get_object(
container, log_part['name'])
yield log_obj.decode()
except swift_client.ClientException as ex:
if ex.http_status == 404:
raise exceptions.GuestLogNotFoundError()
raise