[AXIS2] Implementing a Javaspaces transport to Axis2

[Nadun Herath <na...@gmail.com>]

I intend to develop a Javaspace transport to Axis2 as a university project.
I am really grateful for any suggestions, ideas.
Thank you.

http://java.sun.com/developer/technicalArticles/tools/JavaSpaces/

Re: [AXIS2] Implementing a Javaspaces transport to Axis2

[Nadun Herath <na...@gmail.com>]

Andreas

Thanks a lot for the reply. Looks like Javaspaces do support xml. I am also
studying about Javaspaces at the moment. Main problem I am having is only
limited number of recourses regarding javaspaces are available.





On Wed, Jun 3, 2009 at 2:40 AM, Andreas Veithen
<an...@gmail.com>wrote:

> Nadun,
>
> Sounds interesting. Probably you will have to start thinking about two
> fundamental questions:
>
> 1) Axis2 always represents messages as XML (more precisely a SOAP
> infoset). So you need to decide how this mapping will be done. Most
> protocols we already support exchange binary or text messages (a
> notable exception is the FIX transport in Synapse) for which this is
> fairly easy. I don't know much about JavaSpaces, but if it imposes its
> own structure on the messages, then you need to define a mapping to
> and from XML.
>
> 2) You need to analyze how incoming messages would be dispatched to
> services. The existing transports fall into two categories:
>
> - Transports such as HTTP that accept messages on a single "protocol
> endpoint" (a TCP port in the case of HTTP) and than use Axis2
> dispatchers to dispatch to the right service (typically based on the
> request URI).
>
> - Transports such as mail and JMS on the other hand predispatch
> messages: the transport itself maintains the mapping between protocol
> endpoints (email accounts, JMS destinations, etc.) and the services.
> If that is the right model for JavaSpaces, then you can build your
> transport on top of AbstractTransportListener (from the
> axis2-transport-base module in the WS-Commons Transport project).
>
>
> Hope that helps.
>
> Regards,
>
> Andreas
>
> On Tue, Jun 2, 2009 at 15:34, Nadun Herath <na...@gmail.com> wrote:
> > I intend to develop a Javaspace transport to Axis2 as a university
> project.
> > I am really grateful for any suggestions, ideas.
> > Thank you.
> >
> > http://java.sun.com/developer/technicalArticles/tools/JavaSpaces/
>

Re: [AXIS2] Implementing a Javaspaces transport to Axis2

[Andreas Veithen <an...@gmail.com>]

Nadun,

Sounds interesting. Probably you will have to start thinking about two
fundamental questions:

1) Axis2 always represents messages as XML (more precisely a SOAP
infoset). So you need to decide how this mapping will be done. Most
protocols we already support exchange binary or text messages (a
notable exception is the FIX transport in Synapse) for which this is
fairly easy. I don't know much about JavaSpaces, but if it imposes its
own structure on the messages, then you need to define a mapping to
and from XML.

2) You need to analyze how incoming messages would be dispatched to
services. The existing transports fall into two categories:

- Transports such as HTTP that accept messages on a single "protocol
endpoint" (a TCP port in the case of HTTP) and than use Axis2
dispatchers to dispatch to the right service (typically based on the
request URI).

- Transports such as mail and JMS on the other hand predispatch
messages: the transport itself maintains the mapping between protocol
endpoints (email accounts, JMS destinations, etc.) and the services.
If that is the right model for JavaSpaces, then you can build your
transport on top of AbstractTransportListener (from the
axis2-transport-base module in the WS-Commons Transport project).


Hope that helps.

Regards,

Andreas

On Tue, Jun 2, 2009 at 15:34, Nadun Herath <na...@gmail.com> wrote:
> I intend to develop a Javaspace transport to Axis2 as a university project.
> I am really grateful for any suggestions, ideas.
> Thank you.
>
> http://java.sun.com/developer/technicalArticles/tools/JavaSpaces/