idempiere OSGI startup sequence

[johnbendi]

Please I have spent a lot time debugging the startup sequence of idempiere OSGi using the eclipse IDE which is not my preferred IDE in any way. Also I believe this does not follow the DRY principle in any way and does not show a proper transfer of knowledge to the younger generation. Since Idempiere is open source and encourages open participation and involvement I believe those with this knowledge can help the process of contribution more effective by sharing this information with us especially those that has been involved from the beginning of idempiere OSGi movement. 

So help is needed in decoding this sequence as it will greatly aid the confusion usually associated with the program flow of idempiere. No reference I no of does this currently. Not plug-in development wiki or any other. How is the startup wired together? How, when , and where is the server started? How when and where is the client started, both wing and zk? Thanks for your understanding and patience.

The responses that will be generated will be condensed into a wiki page dedicated to this question. I can help with this.

-John

[Edwin Ang]

Hi John,

Can this page help you?

http://www.globalqss.com/wiki/index.php/IDempiere

Regards,

Edwin Ang

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[johnbendi]

Thanks Edwin, that page has been helpful for setting up eclipse for idempiere and for other purposes for which it was written for. 

My question is related to understanding the wiring of the the osgi idempiere start up sequence. Which idempere class is first called by the osgi framework in the startup sequence of idempere? What bundle kicks of first and how does it go from there till the startup is complete and ready for processing messages. 

Regards, looking forward to your reply.

-John

[Heng Sin Low]

For server, the starting point is org.adempiere.server.Application from the org.adempiere.server bundle.

Also, OSGi doesn't allow you to define the starting sequence of bundle with the same starting level. The OSGi framework can choose to start some of them concurrently.

To view this discussion on the web visit https://groups.google.com/d/msgid/idempiere/0211c13a-0ac2-439e-984f-a1484b22d105%40googlegroups.com.

[Edwin Ang]

Hi John,

If you want to go that deep then you need to learn about OSGi and Buckminster first 

Once you've grasp enough knowledge on those two, then everything will start to make sense, and for sure you will know where to look around.

Regards,

Edwin Ang

To view this discussion on the web visit https://groups.google.com/d/msgid/idempiere/0211c13a-0ac2-439e-984f-a1484b22d105%40googlegroups.com.

[johnbendi]

Thanks for the feedback. 

[Hiep Lq]

hi johnbendi.

maybe this wiki can help you know about "startup sequence"

http://wiki.idempiere.org/en/Tech_How_To_Debug_Lib