Comments (2)
Yes you can validate a schema against a meta-schema. But this isn't going to do what you are expecting. If what you want is to check whether the $ref
can actually resolve then validating against the meta-schema is unlikely to be helpful as this will only perform structural validation.
String instanceData = "{\r\n"
+ " \"$schema\": \"https://json-schema.org/draft/2020-12/schema\",\r\n"
+ " \"type\" : \"object\",\r\n"
+ " \"properties\" : {\r\n"
+ " \"myProperty\": {\r\n"
+ " \"$ref\": \"invalid_ref\"\r\n"
+ " }\r\n"
+ " }\r\n"
+ "}";
SchemaValidatorsConfig config = new SchemaValidatorsConfig();
config.setPathType(PathType.JSON_POINTER);
config.setFormatAssertionsEnabled(true);
JsonSchema schema = JsonSchemaFactory.getInstance(VersionFlag.V202012).getSchema(SchemaLocation.of(SchemaId.V202012), config);
System.out.println(schema.validate(instanceData, InputFormat.JSON, OutputFormat.HIERARCHICAL, executionContext -> {
executionContext.getExecutionConfig().setAnnotationCollectionEnabled(true);
executionContext.getExecutionConfig().setAnnotationCollectionFilter(keyword -> true);
}));
In particular the meta-schema will only check if the value in $ref
corresponds to to the uri-reference
format
which it will validate to be true as invalid_ref
is a valid uri-reference
.
{
"valid": true,
"evaluationPath": "/allOf/1/$ref/properties/properties/additionalProperties/$dynamicRef/allOf/0/$ref/properties/$ref/$ref",
"schemaLocation": "https://json-schema.org/draft/2020-12/meta/core#/$defs/uriReferenceString",
"instanceLocation": "/properties/myProperty/$ref",
"annotations": {
"format": "uri-reference"
}
}
If you want to check if the schema can properly load and resolve $ref
then you need to load the schema by initializing the validators.
String schemaData = "{\r\n"
+ " \"$schema\": \"https://json-schema.org/draft/2020-12/schema\",\r\n"
+ " \"type\" : \"object\",\r\n"
+ " \"properties\" : {\r\n"
+ " \"myProperty\": {\r\n"
+ " \"$ref\": \"invalid_ref\"\r\n"
+ " }\r\n"
+ " }\r\n"
+ "}";
SchemaValidatorsConfig config = new SchemaValidatorsConfig();
config.setPathType(PathType.JSON_POINTER);
config.setFormatAssertionsEnabled(true);
JsonSchema schema = JsonSchemaFactory.getInstance(VersionFlag.V202012).getSchema(schemaData, config);
try {
schema.initializeValidators();
} catch (Exception e) {
e.printStackTrace();
}
from json-schema-validator.
thanks
from json-schema-validator.
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from json-schema-validator.