fix: update modified field handling for blob and bucket with json transport to properly clear fields #2664
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Update StorageImpl#update(BlobInfo) and StorageImpl#update(BucketInfo) to only send modified fields in the case of an actual update. Currently, it simply sends the json version of the current info, this can mean that if a field is cleared the request to gcs doesn't actually include the field to clear.
This same issue does not impact grpc transport, because grpc transport has an explicit
update_mask
that is populated.Add some tests to ensure things work and continue to work.
In order to handle this, we have to explicitly include a
Data.nullOf(Class)
in the respective apiary model. Each of theData.nullOf
s must match the type of the field. Because of this, we now need to track the apiary type for each field. To this end, a new internal field has been added to BlobField and BucketField to map to the corresponding apiary type.Fixes #2662