I'll give the extended lifecycle extension a try to have ModelMBean
dynamically generated based on meta-info. Just a question : is it possible
to provide additionnal meta-info (generic meta-info facility) or do I need
to update Merlin for that ? I think such a generic facility would be really
useful and can be made container-agnostic so that all containers could use
it and leverage it to provide additional features such as this dynamic
MBean generation.
I'll try to send you something (both working code and thoughts about JMX)
next week !
Laurent
Stephen McConnell
<[EMAIL PROTECTED] To: Avalon framework users
<[EMAIL PROTECTED]>
.org> cc:
Subject: Re: [merlin] jmx-0.3-dev1
06/28/2003 10:38
PM
Please respond to
"Avalon framework
users"
Laurent Rieu wrote:
>Steve,
>
>This would be great if you could add the JMX stuff David has just done.
>
Have just downloaded Dave's JMX stuff and will go though it in detail
tommorow.
>This is an excellent starting point for the instrumentation of the
>components when they are deployed in Merlin. I have some time to spend on
>the automatic ModelMBean generation, so I could use this work as a base.
>Regarding dynamic MBean generation / registration, I'm thinking of using
>the component mete-info to declare the manageable view of a component :
>constructors, atttributes, operations and notifictaions a component want
to
>be exposed in its management view. But do we have access to all this in an
>lifecycle extension handler, or do we have to build a specialized
Appliance
>? I guess this would be useful to have access to all these infos in a
>custom extension handler, this would make things simpler.
>
>
The general lifecycle extension facility is insufficient for this,
however Aaron has just put in place an extended lifecycle extension
handler that works with the assembly package. Instead of a context
argument you get the appliance instance and the stage descriptor. This
is usable for mbean based management of the components.
>After this first step, that is user component management, we could start
>thinking on instrumenting Merlin itself. I have many ideas regarding this
>subject. I'll think I'll post something next week !
>
>
Looking forward to it!
Cheers, Steve.
>Laurent
>
>
>
>
> David Bernard
> <[EMAIL PROTECTED] To:
[EMAIL PROTECTED]
> com> cc:
> Subject: [merlin]
jmx-0.3-dev1
> 06/28/2003 08:35
> AM
> Please respond to
> "Avalon framework
> users"
>
>
>
>
>
>
>Hi Stephen,
>
>I follow to work with my version of jmx for merlin.
>I add :
>- jrmp adaptor and test it with mc4j-1.2-b1
>- SystemInfo component, that wraps access to java.lang.Runtime
>(totalMemory,...) and java.lang.System, usefull to follow System
>resource usage.
>
>I think it's normal, to not be able to register remote MBean to a
>MBeanServer.
>Because MBeanServer could access to any type of method from the MBean.
>And MBean don't implements java.rmi.Remote.
>An MBeanServer is the entry point to local Manageable Object.
>
>Currently this version of jmx4merlin satisfy my needs.
>I'll add javadoc
>I'll probably add support for DynamicMBean later; it's possible to use a
>same <Extension>Handler for several interface (MBeanable,
>DynamicMBean,... *MBean (with glob definition))?
>
>I you want, I could try to merge this work with yours (publish it, or
>send me it).
>
>PS : MBeanServerProxy, XXXAdaptorWrapper, Hello1 could be
>compatible/useable with Fortress (feedback welcome).
>
>[link]
>* mc4j screenshoot
>http://www.dwayne.freesurf.fr/download/pub/merlin/mc4j_merlin.png
>* binary version (demo block)
>http://www.dwayne.freesurf.fr/download/pub/merlin/merlin-jmx-0.3-dev1-bin.zip
>
>* devel version (need alchim (unpublished) to build)
>http://www.dwayne.freesurf.fr/download/pub/merlin/merlin-jmx-0.3-dev1-devel.tar.gz
>
>--
>--------------------------------------------------------------
>David "Dwayne" Bernard Freelance Developer (Java)
> mailto:[EMAIL PROTECTED]
> \|/ http://dwayne.java-fan.com
>--o0O @.@ O0o-------------------------------------------------
>
>
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--
Stephen J. McConnell
mailto:[EMAIL PROTECTED]
http://www.osm.net
Sent via James running under Merlin as an NT service.
http://avalon.apache.org/sandbox/merlin
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