Re: Re: Re: Re: Re: Re: Re: Re: Re: Re: Re: OSGi in Web Application

Hi,

I had this question...

I am using a BundleContext in servlet for ex.

getServletConfig().getServletContext().getAttribute("osgi-bundlecontext");

But I am not sure whether this is the correct method or not? and is
"osgi-bundlecontext" predefined atrribute can i change or modify it ?

is thereAnother way ?


thanks

On Fri, Jan 28, 2011 at 2:13 PM, ajinkya prabhune <
[email protected]> wrote:

> Hi,
>
> Great I think most of my doubts have been cleared. :-)
> Thanks a lot...
>
> Regards
> Ajinkya
>
>   On Fri, Jan 28, 2011 at 1:07 PM, Guillaume Sauthier <
> [email protected]> wrote:
>
>> It should be the context of your webapp.
>> Just make sure that you handle dynamism of service ...
>> --G
>>
>> Le 28/01/2011 12:47, ajinkya prabhune a écrit :
>>
>> Hi,
>>
>> Great ur answers made my confusion clear...
>>
>> This is what I did just tell me if i am correct.
>>
>> Will use only one bundle and one Web app for my explanation.
>>
>> 1. Bundle1 was registered as a Service.
>> 2. In the Web App i made a ServiceLocator class and using ServiceTracker
>> found out the Service.
>>     also made a function to return the found service
>>
>> 3. In the Servlet I called that method which was discovered...
>>
>> It all worked thanks....
>>
>> One thing I have doubt is the BundleContext i need to send to my
>> ServiLocator ... which bundlecontext shud that be?
>>
>>
>>
>>
>> On Fri, Jan 28, 2011 at 11:22 AM, Guillaume Sauthier <
>> [email protected]> wrote:
>>
>>>
>>>
>>> Le 28/01/2011 11:15, ajinkya prabhune a écrit :
>>>
>>> Hi,
>>>
>>>  Yes the Web Application is also a OSGi web based bundle.
>>>
>>>
>>> Can you show me the content of your web app bundle ?
>>> Are you using the HttpService ?
>>>
>>>
>>>
>>> Yes the Bundle1 and Bundle2 are services which I would like to use in my
>>> Servlet.
>>>
>>>
>>> Bundles are bundles, and services are other things, do not confuse them.
>>> Bundles are the modules and simply contains classes
>>> Services are runtime instances of classes registered in the OSGi service
>>> registry (so that they can be used by others)
>>>
>>>
>>>
>>> I am getting confused how do I discover those services ?
>>>
>>>
>>> Using the BundleContext you get in your Activator (as a normal Bundle)
>>>
>>>
>>>
>>> Do I use bundlecontext and discover or is there any other way...
>>>
>>>
>>> BundleContext is that standard way.
>>> Otherwise, you may use a component model to bastract yourself from the
>>> OSGi API (See http://www.ipojo.org)
>>>
>>> --G
>>>
>>>
>>>
>>> Thanks
>>>
>>> On Fri, Jan 28, 2011 at 10:24 AM, Guillaume Sauthier <
>>> [email protected]> wrote:
>>>
>>>>
>>>>
>>>> Le 27/01/2011 21:34, ajinkya prabhune a écrit :
>>>>
>>>> Hi,
>>>>
>>>> Sorry for the later reply was not well...
>>>>
>>>> Hi my query was I have a web application say MyWebApplication.
>>>>
>>>>
>>>> Is it also a bundle ?
>>>> ie : Do it have an OSGified META-INF/MANIFEST.MF with OSGi metadata in
>>>> it ?
>>>>
>>>>
>>>>
>>>> It has dependency on 2 osgi bundles say MyBundle1 and MyBundle2....
>>>>
>>>>
>>>> It uses classes from theses bundles ?
>>>>
>>>>
>>>>
>>>> How can I access those Bundles in my Servlet or in my WebApplication...
>>>>
>>>>
>>>> Consider that your application have a parent ClassLoader that have a
>>>> DynamicImport-Package *, so all packages exported by bundles will be
>>>> available to your application classes...
>>>>
>>>>
>>>>
>>>> I hope u get my query ?
>>>>
>>>>
>>>> Are you using OSGi services or just the module layer ?
>>>>
>>>> --G
>>>>
>>>>
>>>>
>>>> Thank you
>>>>
>>>> On Mon, Jan 24, 2011 at 5:57 PM, S. Ali Tokmen <[email protected]
>>>> > wrote:
>>>>
>>>>> Hello
>>>>>
>>>>> Do you have a WAR file that also is an OSGi bundle?
>>>>>
>>>>>
>>>>> Cheers
>>>>>
>>>>> S. Ali Tokmenhttp://ali.tokmen.com/
>>>>>
>>>>> GSM (fr): +33 66 43 00 555 <tel:+33664300555> <tel:+33664300555> <tel:+33664300555> [Orange]
>>>>> GSM (tr): +90 555 266 52 73 <tel:+905552665273> <tel:+905552665273> <tel:+905552665273> [Avea]
>>>>>
>>>>> My AIM, ICQ, MSN Messenger and Yahoo IM
>>>>> contact details are on http://contact.ali.tokmen.com
>>>>>
>>>>>
>>>>>  On 24.01.2011 17:30, ajinkya prabhune wrote:
>>>>>
>>>>> Hi
>>>>>
>>>>> i created a web application which access a osgi bundle in JOnAS (both
>>>>> deployed in JOnAS)
>>>>> but I am getting a missing constarint in import-package line of Web
>>>>> Application...
>>>>> I have properly imported all packages....
>>>>> What might be gng wrong ?
>>>>> thanks
>>>>>
>>>>> On Mon, Jan 24, 2011 at 9:14 AM, Guillaume Sauthier <
>>>>> [email protected]> wrote:
>>>>>
>>>>>> What do you call a web-based OSGi bundle ?
>>>>>> For me, this is a normal bundle that is using the HttpService, no more
>>>>>> no less.
>>>>>> --G
>>>>>>
>>>>>> Le 22/01/2011 22:10, ajinkya prabhune a écrit :
>>>>>>
>>>>>> Hello,
>>>>>>
>>>>>> Got some information about the Web application with OSGi,
>>>>>>
>>>>>> I wanted to ask whether a web based OSGi bundle is similar to the web
>>>>>> service that we make and use in OSGi ?
>>>>>> Also JOnAS uses Felix so how to do I make this Web Based OSGi bundle
>>>>>> ??? (What does Felix offers me)
>>>>>>
>>>>>> Thanks and Regards
>>>>>>
>>>>>> On Fri, Jan 21, 2011 at 9:38 AM, ajinkya prabhune <
>>>>>> [email protected]> wrote:
>>>>>>
>>>>>>> hello
>>>>>>>
>>>>>>> I am trying to imlement a web application with OSGi support.
>>>>>>>
>>>>>>> like -  a web application will uses the services deployed in JOnAS ..
>>>>>>> can someone guide me with this issue
>>>>>>>
>>>>>>> thanks
>>>>>>>
>>>>>>> --
>>>>>>> Thank you and Regards
>>>>>>> Ajinkya Prabhune
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Thank you and Regards
>>>>>> Ajinkya Prabhune
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Thank you and Regards
>>>>> Ajinkya Prabhune
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Thank you and Regards
>>>> Ajinkya Prabhune
>>>>
>>>>
>>>
>>>
>>> --
>>> Thank you and Regards
>>> Ajinkya Prabhune
>>>
>>>
>>
>>
>> --
>> Thank you and Regards
>> Ajinkya Prabhune
>>
>>
>
>
> --
> Thank you and Regards
> Ajinkya Prabhune
>
>


-- 
Thank you and Regards
Ajinkya Prabhune