java - How to apply a sub schema in the JSON Schema validator? -


hi i'm using json schema evaluator in version 2.2.6 validate server responses. these responses can contain single objects of type a, b or c, composite objects, e.g., d containing array of objects. reuse schema definitions of each object, started describe entities in same file described here. problem is, have reference 1 of single objects when validating response.

here (not) swe.

json schema file:

{     "id":"#root",     "properties": {         "objecta": {             "type": "object",             "id":"#objecta",             "properties": {                 "attribute1": {"type": "integer"},                 "attribute2": {"type": "null"},             },             "required": ["attribute1", "attribute2"]         },         "objectb": {             "type": "object",             "id":"#objectb",             "properties": {                 "attribute1": {"type": "integer"},                 "attribute2": {                     "type": "array",                         "items": {                             "$ref": "#/objecta"                         }                     }                 }             },             "required": ["attribute1", "attribute2"]         },     } }

now want validate server response containing object b. this, tried following:

public class schemevalidator {      public static void main(string[] args) {          string jsondata = pseudocodefileload("exampleresponse/objectb.txt");         final file jsonschemafile = new file("resources/jsonschemes/completescheme.json");         final uri uri = jsonschemafile.touri();          processingreport report = null;          try {             jsonschemafactory factory = jsonschemafactory.bydefault();             final jsonschema schema = factory.getjsonschema(uri.tostring() + "#objectb");             jsonnode data = jsonloader.fromstring(jsondata);             report = schema.validate(data);         } catch (jsonparseexception jpex) {             // ... handle parsing errors etc.         }     } }

the problem scheme not loaded correctly. either no error (even invalid responses) or fatal: illegaljsonref scheme seems empty. how can use schema of object b in java code? thank you!!

it looks $ref incorrect. needs relative reference base of json schema file (see here).

so json schema become:

{ "id":"#root", "properties": {     "objecta": {         "type": "object",         "id":"#objecta",         "properties": {             "attribute1": {"type": "integer"},             "attribute2": {"type": "null"},         },         "required": ["attribute1", "attribute2"]     },     "objectb": {         "type": "object",         "id":"#objectb",         "properties": {             "attribute1": {"type": "integer"},             "attribute2": {                 "type": "array",                     "items": {                         "$ref": "#/properties/objecta"                     }                 }             }         },         "required": ["attribute1", "attribute2"]     }, }

}

i've added '/properties' $ref. it's operating xpath definition of object in schema file.


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