def _paginate(self, request, context, resources):
resources = sorted(resources, key=lambda res: res.created_at)
end = len(resources)
if request.starting_token:
try:
marker = common.nano_to_date(request.starting_token)
except ValueError:
context.abort(grpc.StatusCode.ABORTED,
'Invalid starting_token')
for i, res in enumerate(resources):
if res.created_at > marker:
start = i
break
else:
start = end
else:
start = 0
if not resources or start == end:
return [], None
if request.max_entries:
end = min(start + request.max_entries, end)
selected_resources = itertools.islice(resources, start, end)
if end < len(resources):
token = common.date_to_nano(resources[end - 1].created_at)
else:
token = None
return selected_resources, token
def _convert_snapshot_type(self, snap):
created_at = int(common.date_to_nano(snap.created_at))
snapshot = types.Snapshot(
id=snap.id,
source_volume_id=snap.volume_id,
created_at=created_at,
status=types.SnapStatus(type=types.SnapStatusType.READY))
return snapshot
