public Schema loadResourceDefinitionSchema()

in src/main/java/software/amazon/cloudformation/resource/Validator.java [82:110]
16 lines of code
3 McCabe index (conditional complexity)

    public Schema loadResourceDefinitionSchema(final JSONObject resourceDefinition) {

        // inject/replace $schema URI to ensure that provider definition schema is used
        resourceDefinition.put("$schema", RESOURCE_DEFINITION_SCHEMA_URI.toString());

        try {
            // step 1: validate resourceDefinition as a JSON object
            // this validator cannot validate schema-specific attributes. For example if definition
            // contains "propertyA": { "$ref":"./some-non-existent-location.json#definitions/PropertyX"}
            // validateObject will succeed, because all it cares about is that "$ref" is a URI
            // In order to validate that $ref points at an existing location in an existing document
            // we have to "load" the schema
            Schema resourceDefValidator = makeResourceDefinitionSchema();
            resourceDefValidator.validate(resourceDefinition);

            // step 2: load resource definition as a Schema that can be used to validate resource models;
            // definitionSchemaJsonObject becomes a meta-schema
            SchemaLoaderBuilder builder = getSchemaLoader();
            registerMetaSchema(builder, resourceDefinition);
            registerMetaSchema(builder, typeConfigurationDefinitionJson);
            builder.schemaJson(resourceDefinition);
            // when resource definition is loaded as a schema, $refs are resolved and validated
            return builder.build().load().build();
        } catch (final org.everit.json.schema.ValidationException e) {
            throw ValidationException.newScrubbedException(e);
        } catch (final org.everit.json.schema.SchemaException e) {
            throw new ValidationException(e.getMessage(), e.getSchemaLocation(), e);
        }
    }