robertwb commented on code in PR #22802:
URL: https://github.com/apache/beam/pull/22802#discussion_r950617150
##########
sdks/python/apache_beam/transforms/external.py:
##########
@@ -104,6 +105,44 @@ def payload(self):
"""
return self.build().SerializeToString()
+ def get_schema_proto_and_payload(self, *args, **kwargs):
+ named_fields = []
+ fields_to_values = OrderedDict()
+ next_field_id = 0
+ for value in args:
+ if value is None:
+ raise ValueError(
+ 'Received value None. None values are currently not supported')
+ named_fields.append(
+ ((JavaClassLookupPayloadBuilder.IGNORED_ARG_FORMAT % next_field_id),
Review Comment:
This code isn't specific to JavaClassLookupPayload anymore, is it?
##########
model/pipeline/src/main/proto/org/apache/beam/model/pipeline/v1/external_transforms.proto:
##########
@@ -106,4 +109,13 @@ message BuilderMethod {
bytes payload = 3;
}
+message SchemaTransformPayload {
+ // Identifier of the SchemaTransform
+ string identifier = 1;
+ // The config of the SchemaTransform.
+ // Should be decodable via beam:coder:row:v1.
+ // The schema of the Row should be compatible with the schema of the
+ // SchemaTransform denoted by the identifier.
+ bytes config_row = 2;
Review Comment:
Should we also provide the schema that this is encoded against, in case the
schema evolves (in a compatible way of course) between when the discovery
happens and when this request is made.
##########
sdks/python/apache_beam/transforms/external.py:
##########
@@ -104,6 +105,44 @@ def payload(self):
"""
return self.build().SerializeToString()
+ def get_schema_proto_and_payload(self, *args, **kwargs):
+ named_fields = []
+ fields_to_values = OrderedDict()
+ next_field_id = 0
+ for value in args:
+ if value is None:
+ raise ValueError(
+ 'Received value None. None values are currently not supported')
+ named_fields.append(
+ ((JavaClassLookupPayloadBuilder.IGNORED_ARG_FORMAT % next_field_id),
+ convert_to_typing_type(instance_to_type(value))))
+ fields_to_values[(
+ JavaClassLookupPayloadBuilder.IGNORED_ARG_FORMAT %
+ next_field_id)] = value
+ next_field_id += 1
+ for key, value in kwargs.items():
+ if not key:
+ raise ValueError('Parameter name cannot be empty')
+ if value is None:
+ raise ValueError(
+ 'Received value None for key %s. None values are currently not '
+ 'supported' % key)
+ named_fields.append(
+ (key, convert_to_typing_type(instance_to_type(value))))
+ fields_to_values[key] = value
+
+ schema_proto = named_fields_to_schema(named_fields)
+ row = named_tuple_from_schema(schema_proto)(**fields_to_values)
+
+ logging.error('********* xyz123 kwargs: %r', kwargs)
Review Comment:
Extra logging.
##########
model/pipeline/src/main/proto/org/apache/beam/model/pipeline/v1/external_transforms.proto:
##########
@@ -106,4 +109,13 @@ message BuilderMethod {
bytes payload = 3;
}
+message SchemaTransformPayload {
+ // Identifier of the SchemaTransform
+ string identifier = 1;
Review Comment:
Should this typically be a urn as well?
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