fix(arvoparser): Support array as root schema type #226
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This commit adds support for array as root schema type for Avro schemas. The AvroSchemaParser now handles cases where the root schema is an array containing a single JSONObject. The loadMainSchema function has been updated to coerce the array into a json object with type array and items set to the JSONObject. The resolveLocalReferences function has been updated to handle the case where the root schema is an array and return the resolved schema as an array. Added tests to verify the new functionality.
ImFlog
reviewed
Oct 27, 2025
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| if (parsedInput.length() == 1) { | ||
| val mySchema = JSONObject(); | ||
| mySchema.put("type", "array") | ||
| mySchema.put("items", parsedInput.get(0)) |
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From what I see in the spec, it allows multiple primitive values. Things like ["string", "null"] is valid.
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| } else { | ||
| throw IllegalArgumentException("Invalid schema format: array must contain exactly one JSONObject") | ||
| } | ||
| } | ||
| else -> { | ||
| throw IllegalArgumentException("Invalid schema format: must be a JSONObject or an array containing a JSONObject") | ||
| } |
Owner
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Not sure about this based on the specifications.
For me, we could have multiple items in the array and that represent an union, could be primitive types or objects.
WDYT ?
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This commit adds support for array as root schema type for Avro schemas. The AvroSchemaParser now handles cases where the root schema is an array containing a single item. The loadMainSchema function has been updated to coerce the array into a json object with type array and items set to the JSONObject. The resolveLocalReferences function has been updated to handle the case where the root schema is an array and return the resolved schema as an array. Added tests to verify the new functionality.
In an old version of this plugin a few versions ago. We were able to register a subject of array type as simple as
[ foo]. This MR brings it back for arvo parser.The change is a bit hacky because I had to work around the limitation of
org.json. But the good news is it is self contained insideAvroSchemaParserwhich is hopefully not too bad.