Binary Runner wrote:
>Hi,
>
>I've read the docs on web and I think the avalon
>could be suitable for my needs from them. I want
>to ask you for a push to the right
>
>I'd like to write application where everything
>runs on server and the client access it remotely,
>as thin as posssible. The clients I consider are
>web (http), console and gui, with the security
>in mind. I think that it something could be done
>with avalon + phoenix + jo (probably). I would
>like to know what projects I should look at and
>which way to combine them to achieve desired
>result. I'm asking you as more experienced
>developers to avoid at least some painful blind
>alleys. I probably even don't know about some
>usefull works out there.
>
Recommendations:
* don't use the org.apache.avalon.framework.component.* classes
These have been replaced by the ...framework.service.* classes
which basically do the same thing but give you a lot more freedom
in how you do it.
* make a decision early about the container/s your going to use
- Phoenix is great for mounting "big" servers (like a web-server,
ftp-server, etc), but don't use Phoenix for fine-grain component
management (it's too heavy and lacks support for embedding)
- Fortress and Merlin 2.0 are the containers of choice if your thinking
about embedded components (i.e. running a component inside a
servlet). Fortress is more stable than Merlin at this time but
both are moving targets.
* make sure you understand the implications of using existing components
- When you use something out of the Exclibur CVS, try to get a good
picture on its status - Excalibur project contains a mix of tried-
and-tested together with pre-alpha content and the management of
versions and status is not what it could be.
- If your thinking about leveraging the components in the cornerstone
CVS keep in mind that the same "status" issues apply - some are
solid, other are not. If you use anything here you will restrict
yourself to the Merlin 2 or Phoenix container.
- If your thinking about leveraging components in the Avalon Apps CVS
then in general your limiting yourself to Merlin 2 and Phoenix
and in
same cases just Merlin (related to components that leverage default
configuration management).
* other things
- checkout AltRMI in Excalibur - it could be relevant to the remote
management stuff
- checkout the Apache ORB in the Avalon Apps Enterprise project -
it is
also relevant to remote service management
Cheers, Steve.
>
>Thank you for reply,
>R.Matl
>
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