Re: [Stw-devs] Next step ...

[Vincent M. <vm...@oc...>]

  ----- Original Message -----=20
  From: Vincent Massol=20
  To: stw...@li...=20
  Sent: Sunday, July 08, 2001 8:10 PM
  Subject: [Stw-devs] Next step ...


  Here is the current status of STW :
  - it works fine ! It has a single web page listing in a table latest =
versions of software. The data is fetched every 15 minutes
  - it still missing the following :
    - a nicely designed web page (to be provided by Lyonel),
    - a server where to host it and leave it running for a while (to be =
done by Dominique)

  However, I'd like to begin thinking about the next step. I'd like to =
implement the following in this next step :
  - add persistence for data, i.e. all definition of data to retrieve =
are stored in a database (results are still stored in memory for the =
time being until next iteration)
  - modify the current model with the following :
    - each deck can belong to several categories. For example the =
"Castor" deck will belong to both "Open Source Software" category and to =
"XML" category
  - add a simple admin web-based interface to add new definitions to the =
database, query existing entries and modify existing entries (these will =
be provided using very simple GUI. For example adding a new entry will =
consist of forms and we'll enter the regexp to use as a string)

  That's all. It looks very limited. However, it does introduce several =
key elements :
  - a database
  - a mechanism for persisting the data.

  I propose to use EJB 2.0 for the persistence. Thus I can see 2 choices =
:
  - Resin-CMP (a limited implementation of J2EE/EJB for enough for our =
purpose). It does implement local interfaces and relationships. However =
I don't know what databases are supported as it does not let you =
customize the mapping between the container and the database
  - Orion Server 1.5.2, which supports all databases

The problem with Orion 1.5.2 is that is does not support the new EJB 2.0 =
spec and especially the local interfaces .... damn .... For a list of =
what is supported, see=20
http://www.c2.com/cgi/wiki?OrionServerSpecSupport

This leaves us with Resin-CMP ... Does anyone know of any free container =
implementing EJB 2.0 local interfaces ?

  Both are free for non-commercial use.

  For the databases there are several choices :
  - Hypersonic SQL,
  - MySQL
  - PostGre

  Hypersonic has the advantage of being really small (< 100k) but I =
don't know if it works with Resin-CMP (it does with Orion Server =
though).

  STW will be delivered as an EAR file instead of a WAR file (as it is =
now).

  If we use Orion Server, then we loose the run-at feature of Resin but =
I it is extremely simple to spawn new threads from a servlet and sleep =
in a forever while loop in order to reproduce the same effect.

  What do you think ?
  Thanks

  -Vincent Massol

-Vincent