SWAGGER: Dereferencing $ref from body parameter

Question

Taking the petstore example,

I am trying to dereference the $Ref in the /pet -> put operation which is currently: schema $ref: #definitions/Pet

I am trying to resolve this but unable to get this text out from the json file. This is what I have:

BodyParameter bp = (BodyParameter) param; System.out.println(((RefModel) bp.getSchema()).get$ref());

I thought this would give me the above text out which I could later map with a definition Map and resolve it but got the following error:

Exception in thread "main" java.lang.ClassCastException: io.swagger.models.ModelImpl cannot be cast to io.swagger.models.RefModel

Would anyone know of a way to extract this string out from a body parameter and in general since the schema returns a Type Model? I do not find a proper documentation source for the swagger parser , swagger inflector projects so hunting around through the source code itself.

Answer 1

you would do the following:

Model model = bp.getSchema();
if(model instanceof RefModel) {
  RefModel ref = (RefModel) model;
  String simpleRef = ref.getSimpleRef();
  Model concreteModel = swagger.getDefinitions().get(simpleRef);
}

You should confirm that concreteModel is a ModelImpl but in the petstore case, it will be.