Jackson: is there a way to serialize POJOs directly to treemodel?

Question

I'm looking for a way to directly convert some POJO to a Jackson TreeModel. I know that a translation from POJO-to-JSON-String exists, and TreeModel-to-JSON-String is supported — hovewer I am looking for a POJO-to-TreeModel translation. Is there a way?

The use-case is as follows:

• Server-side templating is done with the Java implementation of Mustache. This uses Jackson's TreeModel.
• After that, I need a slimmed-down version of the TreeModel on the client-side, so I want to be able to first filter the TreeModel, serialize that to JSON, then send it to the client-side for further processing.

This, ideally, involves two serialization steps. However, in my workaround, I am currently using three — which you can see here:

map = // a map of  pojos with jackson annotations  //pojo >> JSON StringWriter w = new StringWriter();     objectmapper.writeValue(new JsonFactory().createJsonGenerator(w), map); String json = w.toString(); w.close();  //JSON >> Treemodel JsonNode tree = GenericJcrDTO.mapper.readTree(json); //filter tree here  //treemodel >>JSON StringWriter w = new StringWriter(); GenericJcrDTO.mapper.writeValue(new JsonFactory().createJsonGenerator(w), tree); json = w.toString(); w.close(); 

Anyone?

Answer 1

To answer my own question:

JsonNode node = objectMapper.valueToTree(map);