Re: [jboss-dev] Public IP address used by JBoss AS
Brian Stansberry wrote:
> All of this logic can be centralized (in JGroups it is in 1
place)
> and used everywhere.
>
If there is a single place where such configuration is allowed (e.g. an
AS 7 domain configuration document) and all services that need to
consume the value must get it from the domain model, fine. But that
ain't how AS 6 works. And this discussion started with a request to get
something in M4, so that's what I'm talking about. :)
And I was hoping you'd implement it by the time I arrive at work
tomorrow :-) ha ha
Actually, I don't care where JGroups gets its value, whether it is from
the XML config, system properties, default values etc. At the end of the
day, JGroups looks at all the fields (in all protocols) annotated with
@Property and intercepts setting of the value from a String.
I suppose something similar could be done in the AS: intercept setting
the java.lang.reflect.Field and try to come up with a meaningful
transformation of the Object for all fields of type InetAddress. E.g.
Object could be a String ("192.168.1.5", "http1.dyndns.org",
"GLOBAL"
etc) or an Object (e.g. InetAddress).
In AS 6, this kind of logic cannot be centralized in a single place.
Just in clustering alone, the AS deals with 4 separate projects that
each have their own configuration parsers.
That's why the logic to convert untyped values to typed (and meaningful
values) should be in an interceptor placed in front of fields we want to
convert (or sanity check)
--
Bela Ban
Lead JGroups / Clustering Team
JBoss