Re: How to support loading resources in META-INF/resources of jar files in WEB-INF/*.jar

[Jack Cai <gr...@gmail.com>]

Shall we take #2 but do the extraction at deployment time? I understand it
will break some user scenarios (e.g., update a CAR manually hoping a server
restart will see the new content). But this is worth sacrificing considering
that it will improve app startup performance - which is a much more frequent
scenario.

-Jack

On Mon, May 10, 2010 at 9:55 PM, Ivan <xh...@gmail.com> wrote:

> Hi,
>     In Servlet 3.0, it is allowed to load the resource from
> META-INF/resources of jar files in the WEB-INF folder while it is not found
> in root folder. But now, in our BundleDirContext, there is not a direct way
> (like getEntry) to read the resource.
>     1. The simplest wayt is to wrap the url with zip stream, then iterator
> it to find the resource. But it seems less efficient.
>     2. Extract META-INF/resources from those jar files to the temp folders
> ( even one big folder) while starting the bundleDirContext. With this
> solution, extra disk space is required
>     3. Use classloader to load resource, with this, we may load some
> unwanted resource ...
>     Personally, I like the #2.  Any thoughts ?
> --
> Ivan
>

Re: How to support loading resources in META-INF/resources of jar files in WEB-INF/*.jar

[Ivan <xh...@gmail.com>]

Thanks, Jack, it sounds a good idea. We even could give a global setting
whether we need to refresh the folder while starting the web application.
I am still thinking whether OSGI provides any easy api to acccess those
contents in the embbed jar files of bundle. If anyone know, please help to
figure out :-)

2010/5/11 Jack Cai <gr...@gmail.com>

> Shall we take #2 but do the extraction at deployment time? I understand it
> will break some user scenarios (e.g., update a CAR manually hoping a server
> restart will see the new content). But this is worth sacrificing considering
> that it will improve app startup performance - which is a much more frequent
> scenario.
>
> -Jack
>
>
> On Mon, May 10, 2010 at 9:55 PM, Ivan <xh...@gmail.com> wrote:
>
>> Hi,
>>     In Servlet 3.0, it is allowed to load the resource from
>> META-INF/resources of jar files in the WEB-INF folder while it is not found
>> in root folder. But now, in our BundleDirContext, there is not a direct way
>> (like getEntry) to read the resource.
>>     1. The simplest wayt is to wrap the url with zip stream, then iterator
>> it to find the resource. But it seems less efficient.
>>     2. Extract META-INF/resources from those jar files to the temp folders
>> ( even one big folder) while starting the bundleDirContext. With this
>> solution, extra disk space is required
>>     3. Use classloader to load resource, with this, we may load some
>> unwanted resource ...
>>     Personally, I like the #2.  Any thoughts ?
>> --
>> Ivan
>>
>
>


-- 
Ivan