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Re: [virgo-dev] Virgo Snaps Question

Hi Dmitry,
 Thanks for the help :) I finally got it working :) Had a little bit of weirdness until I rebuilt everything but it seems to be working fine. I will open a ticket against snaps but I am not sure of the support it will get (I reckon it may be community only to drive it on - everything I have seen on SpringSource/VMWare stresses the "prototype" nature of it).

 That said, I think it is one of the coolest features going when it works properly. I am using it to allow 3rd parties add "tabs" to my WebConsole which interact with either my bundles or 3rd party bundles based on the plan we use for deployment.

 I can tidy up some of the code a bit and provide a working sample which could be added to the snaps codebase - this would be a host and a snap (or two) with two other bundles (exporting services to those
snaps). Maybe you or others could check this as I found some slight weirdnesses in the paths used to map in the controllers but this may be lack of knowledge on my part in relation to the web.xml and/or snap-servlet.xml.

e.g. :   (attached the config files)

SNAP : takes over /devices   , the HOST is /console 

So the full path to my MVC controller method  is /console/devices/index

   In the MVC:


and I have to return the following ModelAndView to get it to work (leave out the devices bit) :

	return new ModelAndView("index")        // I have a corresponding index.jsp, 
             // if I leave it I get resource not found on the jsp file.

The snap-servlet.xml is as follows:

  <osgi:reference ....>

 < context:component-scan base-package="....."/>

 <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:prefix="/WEB-INF/jsp/" p:suffix=".jsp" />

The web.xml

Attachment: snap-servlet.xml
Description: application/xml

Attachment: web.xml
Description: application/xml

Attachment: snap.properties
Description: Binary data

Attachment: MANIFEST.MF
Description: Binary data

On 6 Nov 2010, at 15:24, Dmitry Sklyut wrote:

> Within a snap you have to scope your app context to a dispatcher servlet. Move your context config to the servlet init params and it should work. 
> Can you also raise a bugzilla issue?  I think snaps can be made smarter in regards to the Root web application  context handling within a snap. Not sure how to implement that properly. Might need a change in spring mvc code. Root web app context key is a static final in spring mvc. 
> Regards
> Dmitry
> Sent from my iPhone
> On Nov 2, 2010, at 20:09, pphelan@xxxxxxxx wrote:
>> Hi,
>> I was wondering if anyone has used applicationContext.xml within a snap.
>> I have been trying to pull in some OSGI services to be autowired to my
>> MVC controller in a snap but it doesn't appear to be finding the OSGi
>> service when it trys to create the controller.
>> Just curious if it is just me or if anyone else has tried this.
>> Thanks,
>> ~Patsy
>> I do have the following in the web.xml of the snap:
>>  <listener>
>>               <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
>>       </listener>
>>       <context-param>
>>               <param-name>contextClass</param-name>
>>               <param-value>org.eclipse.virgo.web.dm.ServerOsgiBundleXmlWebApplicationContext</param-value>
>>       </context-param>
>> and I use the file applicationContext.xml in the WEB-INF folder with an
>> osgi:reference in it for my service. The interface used by my service is
>> org.jnode.driver.DeviceManager (in the error below).
>> When I look in the Virgo console, there is no sign of the snap consuming
>> the requested service and I am seeing the following error in the logs:
>> Context initialization failed org.springframework.beans.fac
>> tory.UnsatisfiedDependencyException: Error creating bean with name
>> 'nodeController' defined in file
>> [/Users/pphelan/development/virgo/virgo-web-server-2.1.0.RELEASE/work/osgi/confi
>> guration/org.eclipse.osgi/bundles/36/data/store/org.eclipse.osgi/bundles/100/1/bundlefile/WEB-INF/classes/org/pouzinsociety/web/console/devices/NodeController.class]:
>> Unsatisfied d
>> ependency expressed through constructor argument with index 0 of type
>> [org.jnode.driver.DeviceManager]: : No matching bean of type
>> [org.jnode.driver.DeviceManager] found for depend
>> ency: expected at least 1 bean which qualifies as autowire candidate for
>> this dependency. Dependency annotations: {}; nested exception is
>> org.springframework.beans.factory.NoSuchBe
>> anDefinitionException: No matching bean of type
>> [org.jnode.driver.DeviceManager] found for dependency: expected at least 1
>> bean which qualifies as autowire candidate for this depen
>> dency. Dependency annotations: {}
>> _______________________________________________
>> virgo-dev mailing list
>> virgo-dev@xxxxxxxxxxx
>> https://dev.eclipse.org/mailman/listinfo/virgo-dev
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Patsy Phelan

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