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Posted to dev@felix.apache.org by Rob Walker <ro...@ascert.com> on 2008/10/13 16:03:52 UTC

Standard method to get Bundle or Bundle ID from a Bundle URL ??

Realised my Http cacheing code fails to get timestamps for JAR bundle 
resources.

Couple of thoughts / questions on this:

    * Bundle has a getLastModified call that I think I can use to help
      with this - it won't be perfect, but it should aid cacheing at
      least in between installs/updates of bundles.
    * little rusty on latest Felix codebase - anyone know if there are
      existing / standard utils to get either a Bundle or a Bundle ID
      from a a bundle URL e.g

        url:
        bundle://32.0:1/resources/www/com.ascert.webui.vt.VtWebUi/js/ext/resources/images/default/grid/row-over.gif

    * I'm wondering if we can enhance the bundle URL handler to actually
      return this by default for a URLConnection, when getLastModified()
      is called for a bundle URL so that code will by default at least
      return the Bundle last modified time for a resource e.g

        URLConnection conn = resUrl.openConnection();
        lastModified = conn.getLastModified();

    * Will take a look and see if I can find code for this and see how
      feasible it might be.

-- Rob


Ascert - Taking systems to the Edge
robw@ascert.com
+44 (0)20 7488 3470
www.ascert.com

Re: Standard method to get Bundle or Bundle ID from a Bundle URL ??

Posted by Rob Walker <ro...@ascert.com>.

Stuart McCulloch wrote:
> 2008/10/13 Rob Walker <ro...@ascert.com>
>
>   
>> Scratch that - my bad.
>> I think I'm looking at an old framework codebase. Looking at new code, I
>> think URLHandlersBundleURLConnection may have this in already.
>> Will test and report back if not.
>>     
>
>
> see also:  https://issues.apache.org/jira/browse/FELIX-659
>
>   
Nice one - thanks for pointing out. I'll add a comment how this would 
also help Http service too.

-- Rob

Re: Standard method to get Bundle or Bundle ID from a Bundle URL ??

Posted by Stuart McCulloch <mc...@gmail.com>.
2008/10/13 Rob Walker <ro...@ascert.com>

> Scratch that - my bad.
> I think I'm looking at an old framework codebase. Looking at new code, I
> think URLHandlersBundleURLConnection may have this in already.
> Will test and report back if not.


see also:  https://issues.apache.org/jira/browse/FELIX-659


> - Rob
>
> Rob Walker wrote:
>
>> Realised my Http cacheing code fails to get timestamps for JAR bundle
>> resources.
>>
>> Couple of thoughts / questions on this:
>>
>>    * Bundle has a getLastModified call that I think I can use to help
>>      with this - it won't be perfect, but it should aid cacheing at
>>      least in between installs/updates of bundles.
>>    * little rusty on latest Felix codebase - anyone know if there are
>>      existing / standard utils to get either a Bundle or a Bundle ID
>>      from a a bundle URL e.g
>>
>>        url:
>>
>>  bundle://32.0:1/resources/www/com.ascert.webui.vt.VtWebUi/js/ext/resources/images/default/grid/row-over.gif
>>
>>    * I'm wondering if we can enhance the bundle URL handler to
>>      actually return this by default for a URLConnection, when
>>      getLastModified() is called for a bundle URL so that code will
>>      by default at least return the Bundle last modified time for a
>>      resource e.g
>>
>>        URLConnection conn = resUrl.openConnection();
>>        lastModified = conn.getLastModified();
>>
>>    * Will take a look and see if I can find code for this and see how
>>      feasible it might be.
>>
>> -- Rob
>>
>>
>> Ascert - Taking systems to the Edge
>> robw@ascert.com
>> +44 (0)20 7488 3470
>> www.ascert.com
>>
>
> --
>
>
> Ascert - Taking systems to the Edge
> robw@ascert.com
> +44 (0)20 7488 3470
> www.ascert.com
>
>


-- 
Cheers, Stuart

Re: Standard method to get Bundle or Bundle ID from a Bundle URL ??

Posted by Rob Walker <ro...@ascert.com>.
Scratch that - my bad.
I think I'm looking at an old framework codebase. Looking at new code, I 
think URLHandlersBundleURLConnection may have this in already.
Will test and report back if not.
- Rob

Rob Walker wrote:
> Realised my Http cacheing code fails to get timestamps for JAR bundle 
> resources.
>
> Couple of thoughts / questions on this:
>
>     * Bundle has a getLastModified call that I think I can use to help
>       with this - it won't be perfect, but it should aid cacheing at
>       least in between installs/updates of bundles.
>     * little rusty on latest Felix codebase - anyone know if there are
>       existing / standard utils to get either a Bundle or a Bundle ID
>       from a a bundle URL e.g
>
>         url:
>         bundle://32.0:1/resources/www/com.ascert.webui.vt.VtWebUi/js/ext/resources/images/default/grid/row-over.gif
>
>     * I'm wondering if we can enhance the bundle URL handler to
>       actually return this by default for a URLConnection, when
>       getLastModified() is called for a bundle URL so that code will
>       by default at least return the Bundle last modified time for a
>       resource e.g
>
>         URLConnection conn = resUrl.openConnection();
>         lastModified = conn.getLastModified();
>
>     * Will take a look and see if I can find code for this and see how
>       feasible it might be.
>
> -- Rob
>
>
> Ascert - Taking systems to the Edge
> robw@ascert.com
> +44 (0)20 7488 3470
> www.ascert.com

-- 


Ascert - Taking systems to the Edge
robw@ascert.com
+44 (0)20 7488 3470
www.ascert.com