On 02/23/2012 02:39 AM, Sahoo wrote:
> No, HK2 does not handle bundle removal or updation very well. It can
> handle new bundles getting installed at runtime. So, don't update your
> hk2-jar at runtime; instead shutdown the system and restart. It's not a
> bug in HK2/OSGi bridge. I doubt we are going to address this - it
> requires deep changes in HK2 to refresh its internal objects when
> bundles get removed/updated.
>
> I don't know about the streaming to the console part. That seems like a
> question for admin folks.
>
> Sahoo
Hi Sahoo,
thank you for the insight.
As a workaround, would it be possible to (un-)register HK2 services in a
programmatic way from OSGi bundles, e.g. using an activator or an extender?
Cheers,
Ancoron
>
> On Thursday 23 February 2012 12:39 AM, Ancoron Luciferis wrote:
>> Hi devs,
>>
>> I'm currently implementing some asadmin sub-commands and need some
>> help with issues that I face:
>>
>> 1.) I the add-on developer guide I read that I should put the HK2 jar
>> under .../glassfish/modules/. Well, I violated this and instead put it
>> under .../autodeploy/bundles/ and it still works. Nice so far. Now
>> comes the issue: my commands need some OSGi services that I provide
>> dynamically (or not) and depending on availability the commands do
>> different things or just don't. What I started with was the HK2
>> @Inject annotation as it seemed to inject my OSGi services just fine.
>> However, if I update one of those other services I get something like
>> this:
>>
>> ClassCastException: $Proxy489 cannot be cast to <interface>
>>
>> As far as I understand the use of HK2 in GlassFish I though that it
>> would build on top of OSGi or am I wrong here?
>>
>> Anyway, is there a way to fix this (my implementations are always
>> marked as @PerLookup - assuming it does injection also at every
>> instance creation). Also I assumed that the habitat would get updated
>> with new OSGi services.
>>
>>
>> 2.) I also observed that I cannot "update" such an HK2-jar. The OSGi
>> part seems to get updated but not the HK2 part. How can I trigger this?
>>
>>
>> 3.) One of my sub-commands trigger something on another OSGi service
>> asynchronously and I implemented a callbackhandler-like infrastructure
>> (using OSGi-events) to get notified of the work being done. Now this
>> might take quite some time and I wanted to output those notifications
>> back to the console. This part, however doesn't seem to work as I
>> always get all output at the very end in one big batch. Also, I
>> sometimes run into the timeout that grizzly seems to apply for the
>> internal HTTP requests. So, is it possible to "stream" the output?
>>
>> That's what I did back in the good old Servlet days.
>>
>>
>> Thanx for any pointers and help,
>>
>> Ancoron
>