hi all, i have a somewhat complex use case for serialization for messages being communicated around a distributed system. The messages come in like so:

{
	"sessionId": "...",
	"commandId": "...",
	"message": { ... }
}

So, at a lower layer of my code, I parse the

sessionId

and the

commandId

using

JsonTreeParser

, and using the same parser I extract

message

as a JsonObject. Later on, whoever needs to use the

message

JsonObject can deserialize to whatever they want using

mapper.readTree

. Now, say I need to serialize back to another format. Specifically:

{
	"success": true,
	"message": "...",
	"commandId": "...",
	"payload": { ... }
}

That

payload

field is any custom class which needs to be serializable and passed somehow, but I can't find a way to make it a JsonObject, or write any JsonObject for that matter. I also tried making a generic class with an field of the type of

payload

, but that didn't seem like the right direction. I guess what I'm asking is, how can I create a JsonObject from an instance of a class?

JsonTreeMapper

can convert serializable classes to json tree and back

yes, that's exactly what i'm trying to use

yeah

okay. is there some documentation I can read about it? my biggest question is how to pair an object with a String and have it serialize that. I've found some examples using `Pair<String, Int>`(for example), but the type will be generic, and from what i've read in the serialization docs about generics i'll have to write some other logic to make it work. is this the right direction?

To serialize generic classes, you need to instantiate correct serializers for it. e.g.

PairSerializer(StringSerializer, IntSerializer)

for

Pair<String, Int>

ya i think i'm on to something

PairSerializer

is a class in internal package, not a pair of serializers 🙂

yep i think i got it

You mean

JsonElement -> String

? Just call .toString and you would get a correct JSON.