[wildfly-dev] Proposal to add notifications to WildFly management model and API

[Jeff Mesnil]

On 04 Aug 2014, at 16:27, Jason Greene <jason.greene at redhat.com> wrote:
 POC, I am using a single Map to retain the handler and is separate from the resource tree.
>> The Map keys are the path address from the registerNotificationHandler() method (that can be wildcard addresses).
>> When a notification is emitted, I iterate on its entries to find the handlers that match the actual address of resource emitting the notification.
>> I.e. the data structure grows with the number of handlers, not with the resources that emits notifications.
> 
> Is this map broken up into path segments to mitigate the o(n) cost? 
> 
> e.g.determining if /x=blah/y=foo/z=bar matches x=blah/y=foo/* = 2 O(1) map lookups

This is definitely something I need to do to decrease the lookup cost.
I’ll have a look if I can reuse the code from our resource registry for that.

thanks,
jeff

-- 
Jeff Mesnil
JBoss, a division of Red Hat
http://jmesnil.net/