def _read_blob(self, ctx, experiment, plugin_names, run, tag):
for plugin_name in plugin_names:
blob_sequences = self._data_provider.read_blob_sequences(
ctx,
experiment_id=experiment,
plugin_name=plugin_name,
run_tag_filter=provider.RunTagFilter(runs=[run], tags=[tag]),
downsample=1,
)
blob_sequence_data = blob_sequences.get(run, {}).get(tag, ())
try:
blob_ref = blob_sequence_data[0].values[0]
except IndexError:
continue
return self._data_provider.read_blob(ctx,
blob_key=blob_ref.blob_key)
raise errors.NotFound()
def read_blob(self, ctx, *, blob_key):
payload = base64.urlsafe_b64decode(blob_key)
prefix = ("%s:" % self._name).encode("utf-8")
if not payload.startswith(prefix):
raise errors.NotFound("not %r.startswith(%r)" % (payload, prefix))
return payload[len(prefix):]