Re: [Mc4j-user] MC4J and MBeans Tree

[Sergey B. <ser...@io...>]

Hi

I think it would be nice, given different views on how beans should be 
ordered,
to let people provide custom implementations of some interface like 
MBeanTreePresenter
or smth like that.
the console could ask it, for ex, given some input ObjectName and a 
collection of currently known MBeans in the same domain this ObjectName 
belongs to, to point to a top level ancestor and an immediate parent for 
this given ObjectName (MBean).

class CustomMBeanTreePresenterFactory implements/extends 
MBeanTreePresenterFactory {
  MBeanTreePresenter getMBeanTreePresenter(String domain);
}

interface MBeanTreePresenter{
    AncestorPair getAncestorPair(ObjectName name, Map/Collection mBeans);
}

May be something better can be used but it's nic eto be able to provide some 
customization...

What do you think ?

Cheers, Sergey


----- Original Message ----- 
From: "Greg Hinkle" <gre...@gm...>
To: <mc4...@li...>
Sent: Thursday, December 08, 2005 3:43 PM
Subject: Re: [Mc4j-user] MC4J and MBeans Tree


> As far as I know, no one has ever followed this containment 
> recommendation and so it is not supported in MC4J. JSR-77 has its own 
> containment policy with externally define hierarchies (though most 
> implementations also puts keys in a contextual order).
>
> MC4J currently does largest key group aggregation so that it takes  all 
> beans in a domain and orders their keys by the number of matches.  The 
> beans below would be grouped into a group of all "bar=Y'" beans  because 
> there are more matches than for the foo key. That model  seemed to work 
> fairly well for WebLogic, but its obviously not well  thought out.
>
> A:foo=X,bar=Y
> A:foo=Z,bar=Y
>
> I was considering using the key ordering for the next version, but  i'm 
> open to suggestions. Maybe I could provide selectable ordering 
> implementations.
>
>
> On Dec 8, 2005, at 10:16 AM, Sergey Beryozkin wrote:
>
>> Hi
>>
>> I've just subscribed to this list and here's my first question, 
>> apologies
>> if a similar question has been asked before.
>> Here's the problem I need to solve. I'm experimenting with few mgmt
>> consoles. One of them is MC4J. When it connects to my server it shows
>> the MBeasn tree in the way I don't expect.
>>
>> For example, lets assume I have 'A', 'B', 'C' and 'D' mbeans where  'A' 
>> is a parent to 'B', 'B' to 'C' and
>> 'C' to 'D'.
>>
>> I name them like this :
>>
>> SomeDomain:type=A,name=A1
>> SomeDomain:type=A.B,A=A1,name=B1
>> SomeDomain:type=A.B.C,A=A1,A.B=B1,name=C1
>> SomeDomain:type=A.B.C.D,A=A1,A.B=B1,A.B.C=C1,name=D1
>>
>>
>> MC4J will show them to me like this
>>
>> SomeDomain
>> |
>> -A=A1
>> |     |
>> |     --- A.B=B1
>> |     |
>> |     ----name=D1,type=A.B.C.D,A.B.C=C1
>> |     ----name=C1,type=A.B.C
>> |     |
>> |     --- name=B1,type=A.B
>> |
>> -name=A1,type=A
>>
>> I'd appreciate any hints/comments. Apparently, I'm not following  some 
>> well-known ObjectName naming patterns. I tried to follow  recommendations 
>> outlined in [1] but it doesnt help.
>>
>>
>> Thanks, Sergey
>>
>> [1] http://java.sun.com/products/JavaManagement/best-practices.html
>>
>>
>>
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