Java output plugin : How to encode values using existing codec

[Rahul_Pawar]

Writing java output plugin and need to convert values into the user-specified codec. Maybe JSON, AVRO.
Question is can I use existing ruby written codec or need to create my own?
Even if we have written java codec then how we can use into output java plugin?

sample code

@Override
public void output(final Collection<Event> events) {
     Iterator<Event> z = events.iterator();
      while (z.hasNext() && !stopped) {
             //How to use existing or newly created java codec here. Ex. Json, Avro
        }
}