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Calling RAP Code From The Outside [message #1061952]

Wed, 05 June 2013 06:35

S. Schulz

Messages: 72
Registered: September 2011

Member

Hi everyone!

I have a small two-tier application for managing stuff, and I want to implement some kind of job that runs every night (or every weekend, it doesn't really matter). My distant dream would be to call an OSGi service via URL (or any other way) to get everything running, but I'm open to suggestions.

Some details: I'm running a RAP 2.0 WAR only (e.g. no EAR), JPA is done via Gemini / EclipseLink, but I'm strictly implementing against the spec, not the implementation. Consequently, I don't want to code against a specific OSGi implementation or server, I'm using JBoss AS7 right now but I want to evaluate other possibilities later on.

So what are my options on calling RAP code from the outside world?

Thanks in advance,

S. Schulz

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Re: Calling RAP Code From The Outside [message #1062082 is a reply to message #1061952]

Wed, 05 June 2013 19:05

Cole Markham

Messages: 150
Registered: July 2009
Location: College Station, TX

Senior Member

Hi,

I would assume you are not wanting to call actual RAP API from your scheduled task, but rather just code that resides in the same application. It sounds like what you are looking for is something like this[1] which lets you publish OSGi services via REST.

[1] https://github.com/hstaudacher/osgi-jax-rs-connector

Hope that helps,

Cole

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Re: Calling RAP Code From The Outside [message #1062114 is a reply to message #1062082]

Thu, 06 June 2013 05:43

S. Schulz

Messages: 72
Registered: September 2011

Member

Yes, you are right, I don't want to call the RAP API, I just wanted to make sure that I will need the RAP context (e.g. the OSGi services) of the application, so calling Enterprise Beans of a specialized job-EAR is out of the question.

Thanks for the link, I'll take a look. But if someone has a different option, feel free to share it!

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Re: Calling RAP Code From The Outside [message #1062848 is a reply to message #1061952]

Tue, 11 June 2013 05:58

S. Schulz

Messages: 72
Registered: September 2011

Member

Just a thought: Would it be possible to simply add a second entry point and call it with some kind of admin credentials, and let it call the necessary methods?

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Re: Calling RAP Code From The Outside [message #1063444 is a reply to message #1062848]

Thu, 13 June 2013 08:13

Ralf Sternberg

Messages: 1313
Registered: July 2009

Senior Member

> Just a thought: Would it be possible to simply add a second entry point
> and call it with some kind of admin credentials, and let it call the
> necessary methods?

Of course, you can add an entrypoint and provide some kind of admin UI.
But if you don't need a UI, a plain servlet is sufficient to access OSGi
services or EJBs. If you need access to the application context, you
could use a service handler [1].

Regards,
Ralf

[1]
http://download.eclipse.org/rt/rap/doc/2.1/guide/reference/api/org/eclipse/rap/rwt/service/ServiceHandler.html

--
Ralf Sternberg

Twitter: @EclipseRAP
Blog: http://eclipsesource.com/blogs/

Professional services for RAP and RCP?
http://eclipsesource.com/services/rap/

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