Cannot visit value with unexpected type

[fhalde]

I'm using the Java POJO's generated by Pkl to instantiate configuration objects in memory ( in our automations ) and then render them into a Pcf format, which is then used as the configuration for a generalized application ( the application is purely user input driven )

var cc = new AppConfig.TableMapping("aa", "bb", "cc", new AppConfig.DeltaSink("ss", List.of()), "ee");
ValueRenderers.pcf(new PrintWriter(System.out, true), "", false, false).renderValue(cc);

Exception in thread "main" java.lang.IllegalArgumentException: Cannot visit value with unexpected type: TableMapping {
  name = aa
  topicRegex = bb
  topic = cc
  sink = DeltaSink {
    path = ss
    partitionColumns = []
  }
  schema = ee
}
	at org.pkl.core.ValueVisitor.visit(ValueVisitor.java:112)
	at org.pkl.core.PcfRenderer.renderValue(PcfRenderer.java:57)
	at Main.main(Main.java:18)

I'm wondering what's going on

What we have

• An application that has a published configuration spec ( pkl )
• An automation that relies on the published configuration spec ( pojo's ) to dynamically create its configuration for each instance of the application

[odenix]

Value renderers can only render Pkl values (i.e., what’s returned by Evaluator.evaluate()), not arbitrary Java objects such as TableMapping.

[pacs01]

Is there a workaround to instantiate configuration objects and render them in Pcf format? (e.g. using Evaluator.evaluate() and then mutating the configuration objects before passing them into the value renderer again?)

@fhalde did you find a solution for your application?