Kevin created AVRO-3466:
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Summary: Rust: serialize Schema to JSON loses inner namespace names
Key: AVRO-3466
URL: https://issues.apache.org/jira/browse/AVRO-3466
Project: Apache Avro
Issue Type: Bug
Components: rust
Affects Versions: 1.11.1
Environment: stable-x86_64-apple-darwin (default)
rustc 1.56.1 (59eed8a2a 2021-11-01)
apache-avro git commit a4e42112cea95 (master at the time)
Reporter: Kevin
Inner namespace for {{enum}} type in a Record field is lost when Schema
serialized to JSON.
An example failing Unit test for {{schema.rs}} demonstrates the problem:
{code:java}
#[test]
fn kvc_test_to_json_inner_enum_inner_namespace() {
let schema = r#"
{
"name": "record_name",
"namespace": "space",
"type": "record",
"fields": [
{
"name": "outer_field_1",
"type": [
"null",
{
"type":"enum",
"name":"inner_enum_name",
"namespace": "inner_space",
"symbols":["Extensive","Testing"]
}
]
},
{
"name": "outer_field_2",
"type" : "inner_space.inner_enum_name"
}
]
}
"#;
let schema = Schema::parse_str(schema).unwrap();
let rs = ResolvedSchema::try_from(&schema).expect("Schema didn't
successfully parse");
// confirm we have expected 2 full-names
assert!(rs.get_names().len() == 2);
for s in &["space.record_name", "inner_space.inner_enum_name"] {
assert!(rs.get_names().contains_key(&Name::new(s).unwrap()));
}
// convert Schema back to JSON string
// BUG: this operation loses the inner enum namespace "inner_space"
let schema = serde_json::to_string(&schema).expect("test failed");
println!("{}", schema);
// confirm we can parse it again, this fails because JSON string lost inner
enum namespace
let _schema = Schema::parse_str(&schema).expect("test failed");
} {code}
above run against recent {{master}} (commit ) fails with:
{code:java}
{"type":"record","namespace":"space","name":"record_name","fields":[{"name":"outer_field_1","type":["null",{"type":"enum","name":"inner_enum_name","symbols":["Extensive","Testing"]}]},{"name":"outer_field_2","type":"inner_space.inner_enum_name"}]}test
failed: ParsePrimitive("inner_space.inner_enum_name")
thread 'schema::tests::kvc_test_to_json_inner_enum_inner_namespace' panicked at
'test failed: ParsePrimitive("inner_space.inner_enum_name")',
avro/src/schema.rs:2862:50
{code}
Notice in the above that {{inner_enum_name}} in the output JSON is lacking the
{{namespace}} attribute of the input JSON.
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