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OSGI Whiteboard registered Resource not working [message #1756480]

Fri, 17 March 2017 15:13

Marco Descher

Messages: 197
Registered: October 2010
Location: Austria

Senior Member

Hy there,

I am trying to register an HTTP Service using the whiteboard pattern (for a german article have a look here https://jaxenter.de/webkomponenten-mit-osgi-einfach-und-elegant-23731 )

Everything concerning the listener, servlet and filters does work out just great. But I can't seem to get the resource working.

That is, according to docu you should create a class like

@Component(service = MyResourceService.class , 
           property= {"osgi.http.whiteboard.resource.pattern=/static/*",
                      "osgi.http.whiteboard.resource.prefix=/www"})
public class MyResourceService{
    // nothing to implement
    }

and have the resource available under http://localhost:8080/static/*

But this never works out. It does however, when I use the resp. extension point definition (see enclosed pic). I use Neon.2 as target and its contained bundles.

index.php/fa/28789/0/

I would really like to do it all as Whiteboard, what am I missing out???

Thanks for any help!

Attachment: 2017-03-17_1611.png
(Size: 39.29KB, Downloaded 780 times)

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Re: OSGI Whiteboard registered Resource not working [message #1759478 is a reply to message #1756480]

Tue, 11 April 2017 22:43

Dirk Fauth

Messages: 2902
Registered: July 2012

Senior Member

Which are the "contained bundles" you are using? Are servlets registered via whiteboard pattern are working?

I haven't tested resources yet, but I would assume that either not all required bundles are included in your use case, or the required bundles are not started automatically.

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Re: OSGI Whiteboard registered Resource not working [message #1759855 is a reply to message #1759478]

Wed, 19 April 2017 07:34

Dirk Fauth

Messages: 2902
Registered: July 2012

Senior Member

OK, I played around with the HTTP Whiteboard implementation in Equinox. It works pretty fine. Actually I came also to the point where the resources are not shown, but it turned out that the issue was created by myself because I added a servlet filter that added a common HTML header to all resources (pattern = /*). With a more precise pattern/regex that excludes the resources folder also the resource servlet is working correctly.

So do you have a servlet filter in place?

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Re: OSGI Whiteboard registered Resource not working [message #1759856 is a reply to message #1759855]

Tue, 18 April 2017 23:35

Marco Descher

Messages: 197
Registered: October 2010
Location: Austria

Senior Member

Hy Dirk, thanks a lot for your feedback! I am currently deeply involved in a different project, and will come back to the topic as soon as I work on the problem again! Smile

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