Whiteboard registration support for JMX DynamicMBeans
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Key: ARIES-430
URL: https://issues.apache.org/jira/browse/ARIES-430
Project: Aries
Issue Type: New Feature
Components: JMX
Reporter: Felix Meschberger
As proposed on dev [1] I have hacked together a small piece of code which
implements support for the whiteboard pattern for registering MBeans with MBean
servers.
The code is in my Sling whiteboard at
https://svn.apache.org/repos/asf/sling/whiteboard/fmeschbe/jmx-whiteboard but
is intended to be added to the Aries JMX functionality.
The single-class implementation picks up DynamicMBean servies registered as
"javax.management.DynamicMBean". Each such service is registered with each
registered MBeanServer service (similar to how the framework MBeans are
registered by jmx.core). The JMX ObjectName can either be provided with a
"jmx.objectname" service registration property (String type) or the
DynamicMBean may implement the MBeanRegistration interface in which case the
ObjectName is provided by the preRegister method during registration.
This is just a first hack which has not really been tested but mainly serves to
show the idea. It is currently implemented as a Declarative Services component
but may as well be implemented as a regular class using ServerTracker instances
and instantiated by the BundleActivator (which may be a good idea to make this
as widely usable as possible - for example in Sling we don't currently use
Blueprint, so a Blueprint based implementation would be a no-go for us ;-) )
If there would be interest in this, I would try to test and validate this piece
with the hopes to get a release soon (may be released independently, hint hint
;-) )
[1] http://markmail.org/message/p464v4gst2uifm5h
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