[dna-dev] ESBMessageSequencer

[Mark Little]

Throughput (that data is attached to the messages too).

Mark.


On 9 Jun 2008, at 08:38, Stefano Maestri wrote:

> Hi,
> I have begun to write this sequencers (http://jira.jboss.org/jira/browse/DNA-78 
> ).
> I'm writing here to ask readers of this mailing list to take a look  
> at my first implementation of ESBMessageMetaData and give me some  
> feedback:
> http://fisheye.jboss.org/browse/DNA/branches/maeste/sequencers/dna-sequencer-esbMessage/src/main/java/org/jboss/dna/sequencer/esbMessage/ESBMessageMetaData.java
>
> The purpose of this sequencer I have kept in mind writing it, is to  
> extract infos from an ESBMessage for governance (and in particular  
> monitoring inside governance) goals.
> What I'd like to have from this sequencer is to extract metadata  
> about messages regarding properties, faults, and route. Querying and/ 
> or statistics can be performed on this metadata and eventually  
> joined with SLAs or others useful measurement.
>
> My idea is to implement a JCRMessageStore on ESB side (http://jira.jboss.org/jira/browse/JBESB-1769 
> ) storing the whole message as array of bytes, leaving to sequencer  
> responsibility of extract and store in JCR (eventually different/ 
> federated JCR) all  metadata.
> This approach leave the JCRMessageStore  very thin and eventually  
> permit to have different level of  metadata applying different  
> sequencer.
>
> Any feedback is very welcome. What else do you like to sequence from  
> an ESB Message? Are there any metadata I extracted in my first impl  
> that you think are not useful?
>
> thanks in advance
>
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----
Mark Little
mlittle at redhat.com

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