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From Luciano Resende <luckbr1...@gmail.com>
Subject Re: Adding JMX capabilities to Tuscany (patch)
Date Tue, 31 May 2011 16:55:55 GMT
On Tue, May 31, 2011 at 9:47 AM, Raymond Feng <enjoyjava@gmail.com> wrote:
> Hi, Amindri.
> Thanks for the patch. I have a few comments:
> 1) It seems that you are trying to add the "getView()" into the model such
> as Endpoint. This approach is a bit invasive. Can we achieve the same
> function using a different way?
> * Define a ManagementProviderExtensionPoint which collects all management
> providers for given managed entities in Tuscany runtime.
> * Define an ManagementProvider SPI like:
> package org.apache.tuscany.sca.management.jmx;
> public interface ManagementProvider<M> {
> Class<M> getModelType(); // The type of the model to be managed
> <V> V getView(M model); // The view of the given model
> }
> * For managed entities in Tuscany runtime, create an implementation
> of ManagementProvider and register it using
> META-INF/services/org.apache.tuscany.sca.management.jmx.ManagementProvider
> 2) Can the MXBeans be hierarchical in addition to the flat list? Typically
> in Tuscany, the managed entities are part of a tree. For example,
> ExtensionPointRegistry --> ExtensionPoint --> Extension, or SCA Domain -->
> Composite --> Component --> Services. Maybe the hierarchy can be represented
> using the ObjectName conventions.
> 3) To access the managed entities, take a look
> at org.apache.tuscany.sca.core.assembly.impl.CompositeActivatorImpl
> and org.apache.tuscany.sca.core.DefaultExtensionPointRegistry. We might need
> to expose some of the information to JMX.
> Thanks,
> Raymond

I also have a requirement, where, in environments where JMX and other
Management APIs are not supported, can I remove the module and
everything will still work without any dependencies on the management
APIS ? This is mainly to allow us to run Tuscany in cloud environments
such Google App Engine where management APIs are NOT whitelisted on
the sandbox environment of the application.



-- 
Luciano Resende
http://people.apache.org/~lresende
http://twitter.com/lresende1975
http://lresende.blogspot.com/

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