如何在WireMock JSON存根中使用if条件？

{
  "request": {
    "method": "GET",
    "url": "/api/endpoint"
  },
  "response": {
    "status": 200,
    "body": "${ifCondition(request.query.param1, request.query.param2)}"
  },
  "transformers": ["response-template"]
}

import com.github.tomakehurst.wiremock.extension.Parameters;
import com.github.tomakehurst.wiremock.http.Request;

public class CustomResponseFunctions {
    public static String ifCondition(Request request, Parameters parameters) {
        String param1 = request.queryParameter("param1");
        String param2 = request.queryParameter("param2");

        if (param1 != null && param2 != null) {
            // 根据条件逻辑生成响应
            return "Response A";
        } else {
            // 根据其他条件逻辑生成响应
            return "Response B";
        }
    }
}

java -cp "wiremock-standalone.jar:CustomResponseFunctions.jar" com.github.tomakehurst.wiremock.standalone.WireMockServerRunner --extensions com.example.CustomResponseFunctions