Is it possible to validate one JSON schema structure with another JSON schema with Java?

[abhikt48]

I need to validate JSON schema structure with referenced JSON schema. I need to make sure that JSON schema adhere reference structure.

Example - Below JSON schema uses reference of "$schema": "https://json-schema.org/draft/2020-12/schema" . I need to make sure that below Json schema is valid against "$schema": "https://json-schema.org/draft/2020-12/schema"

Is It possible to validate one JSON schema structure with another JSON schema ?

I haven't found any Java SDK/library yet to validate one schema against another json schema. It will be great if anyone can provide any input to validate Json schema against another json schema

{
   "$schema": "https://json-schema.org/draft/2020-12/schema",
   "$id": "https://test.com/employee.schema.json",
   "title": "employee",
   "type": "object",
   "properties": {
     "firstName": {
       "type": "string",
       "description": "The employee's first name."
     },
     "lastName": {
       "type": "string",
       "description": "The employee's last name."
     },
     "age": {
       "description": "Age",
       "type": "integer",
       "minimum": 0
     }
   }
 }

[Relequestual]

A JSON Schema is "just JSON", so treat the schema like JSON and do validation as you usually would.
You should download the meta-schema, although this can be updated without notice or versioning (unlikely, but possible).

[abhikt48]

Thanks for details. Really helps.

[rpgoldman]

A JSON Schema is "just JSON", so treat the schema like JSON and do validation as you usually would. You should download the meta-schema, although this can be updated without notice or versioning (unlikely, but possible).

I was wondering if you could describe how to download the meta-schema. When I look on the json-schema page, I don't see a single-file version of the meta-schema. I'm using jsonschema which does not (AFAICT) dereference schema URLs.

Is there a single-file version available? If not, could one assemble one, or would a standard evaluator be able to assemble one out of a directory structure? There is this question on Stack Overflow, but it was not answered: https://stackoverflow.com/questions/69452886/how-to-validate-json-schema-against-metaschema-in-linux-cli

Sorry if these are dumb questions but ... keyword search really isn't good for finding out how to validate against the meta-schema! Thank you

[jdesrosiers]

This gist should be helpful. I included the bundled meta-schema and the script used to bundle it if you need to generate a fresh copy.

[karenetheridge]

I already answered this for you yesterday: https://stackoverflow.com/questions/71326806/how-to-validate-json-schema-structure-with-another-json-schema-with-java/71328611#71328611

[abhikt48]

Thank you so much for quick response. Somehow, I didn’t understand completely with yesterday response. With today SDK details and above response cleared my doubt. Thanks again for quick help.