Add params for others service fields

[vlaborie]

Ecs-logging-java permit to define the service.name but no others service fields.

Can you add params for service.type and service.version ?

[felixbarny]

You can add arbitrary additional fields. Example for log4j2:

  <KeyValuePair key="service.version" value="1.2.3"/>

[vlaborie]

It is also possible with jul and log4j ?

[felixbarny]

Currently, that's not possible. Would you be interested in contributing support for it?

[vlaborie]

I would, but i am not a Java developer.

Have you any plan to implement this in the near future ?

[felixbarny]

I see what I can do but I can't make promises.

As a workaround, could you just set all the information into service.name?

[felixbarny]

Thank's for adding additional fields to log4j and JUL.

I tested it and it work well for log4j but doesn't work for JUL.

I tried to add co.elastic.logging.jul.EcsFormatter.additionalFields=key1=value1,key2=value2 in my Tomcat logging.properties like specified in documentation but nothing happened

Thanks for reporting. Not sure why you deleted that comment.
This should be fixed by #118