How to use dot navigation in Jackson JsonNode

Question

I have the following code:

 private val parsed = ObjectMapper().readTree(vcap)
 parsed.get("spaces")?.firstOrNull()?.get("block1")?.asText()

I'd like to use dot notation for navigating (for readibility reasons). Something like:

 private val parsed = ObjectMapper().readTree(vcap)
 parsed.get("spaces[0].block1")?.asText()

Is it possible?

Answer 1

If you are using jackson greater than 2.3 then you can simply use JsonPointer expression

parsed.at("/spaces/0/block1")?.asText()

Of if you wanna use dot navigation which is called json pathing you can use Jayway JsonPath

ReadContext ctx = JsonPath.parse(vcap);
ctx.read("$.spaces[0].block1");