Gert has added breadcrumbs and I've experimented with having multiple breadcrumbs on a single message. That's now in smx5 trunk. The main use case is about aggregators: when several messages are aggregated, I think it's important to be able to trace all the inputs that have been used. I've managed to do so, but it required a small modification in camel-core (see https://github.com/gnodet/camel/commit/66df8b26f7e409d485a8bf9457c24d3cec9b5050), so you'll have to build it locally for now. It seems quite minor, so as soon as camel 2.8 is out, I'll push those changes into camel trunk and depend on 2.9-SNAPSHOT.
-- ------------------------ Guillaume Nodet ------------------------ Blog: http://gnodet.blogspot.com/ ------------------------ Open Source SOA http://fusesource.com
