Hi Clement,
Thanks for the pointers you have provided. I have used the annotation
@PostRegistration as a callback to confirm the registration of my service. It
works now.
Regards,
Kiran
-----Original Message-----
From: Raja Bahadur, Kiran (IT/IN)
Sent: Monday, September 09, 2013 21:54
To: users@felix.apache.org
Subject: RE: Issue with Architecture object
Hi Clement,
Using our white board patterns such as this I am receiving updates of "
org.apache.felix.ipojo.architecture.Architecture" object and also all the
instance updates. (org.osgi.framework.ServiceReference)
Below is the class structure which receives all the updates of Architecture
object and all ServiceReference updates.
@Component(publicFactory = false, immediate = true, managedservice =
"ServiceExporter", architecture = true
, name = "ServiceExporter")
@Instantiate(name = "ServiceExporter")
@Whiteboards(whiteboards =
{
@Wbp(
filter = "(monitor=true)",
onDeparture = "removeArch",
onModification = "modifiedArch",
onArrival = "addArch"),
@Wbp(filter = "(instance.name=*)",
onArrival = "onArrival",
onDeparture = "onDeparture",
onModification = "onModification"
)
})
public class ServiceExporter {//start of class
@Requires
private Architecture[] arch;
@Bind(aggregate = true, id = "arch", optional = true)
private void addArch(Architecture arch) { ......
}
@Unbind(aggregate = true, id = "arch", optional = true)
private void removeArch(Architecture arch) { .....
}
@Modified(aggregate = true, id = "arch", optional = true)
private void modifiedArch(Architecture arch) { .....
}
private synchronized void onArrival(ServiceReference ref) throws IOException {
.....
}
private synchronized void onDeparture(ServiceReference ref) throws IOException
{ .....
}
private synchronized void onModification(ServiceReference ref) throws
IOException { .....
}
}//end of class
Could you please elaborate about the "ProvidedServicesListener", I am a bit new
to the iPojo world? I know there are different handlers for @Provides,
@Requires, etc... but how do I register to get updates related to individual
handlers?
In my "com.abc.Publisher" (previous example) I have used @PostRegistration as
well, for which I get an update once the service is registered, but I can' t
extract an "Architecture" object from ServiceReference object.
Is there any way to get hold of the latest Architecture object once I get hold
of the ServiceReference in the updates that I get?
Many thanks,
Kiran
-----Original Message-----
From: Raja Bahadur, Kiran (IT/IN)
Sent: Monday, September 09, 2013 21:22
To: users@felix.apache.org
Subject: RE: Issue with Architecture object
Hi Clement,
Thanks for your response. I will take a quick look at it and get back to you.
Another thing is that all the other services except this one come as
"registered" when we get the update via Architecture object.
Regards,
Kiran
-----Original Message-----
From: Clement Escoffier [mailto:clement.escoff...@gmail.com]
Sent: Monday, September 09, 2013 21:14
To: users@felix.apache.org
Subject: Re: Issue with Architecture object
Hi,
When the architecture object is injected the service may be not yet registered.
Indeed the architecture service is exposed before the registration of the
(business) services. To be notified of the change, there is a set of listeners
you can register on the different handlers such as the
'ProvidedServiceListener'.
Regards,
Clement
On 9 sept. 2013, at 11:01, kiran.rajabaha...@nomura.com wrote:
> Hi,
>
> I am having an issue where one of my registered service always comes out from
> via Architecture object as “unregistered”. But when I actually check the
> karaf (container) for that instance, it shows as “registered”. I am listening
> to all Architecture events. (Add, Modify, Delete) using White Board Patterns.
>
> Kindly let me know if there is anything obvious from the below output.
>
>
>
> Debugging the callbacks of @Modified (Arch) method shows it as “unregistered”:
> Example: (the extract of the
> arch.getInstanceDescription().getHandlers()[1].getHandlerInfo() ,
> where arch is org.apache.felix.ipojo.architecture.Architecture)
>
>
> handler name="org.apache.felix.ipojo:provides" state="valid"
> provides specifications="[com.abc.Publisher]" state="unregistered"
> property name="service.pid"
> value="EventPub.ba553e85-922c-4344-bed5-ac3c0077b9fd"
> property name="factory.name" value="EventPub"
> property name="instance.name"
> value="EventPub.ba553e85-922c-4344-bed5-ac3c0077b9fd"
>
>
>
> In the karaf console the output shows as registered:
>
> instance name="EventPub.ba553e85-922c-4344-bed5-ac3c0077b9fd" state="valid"
> bundle="74" component.type="EventPub"
> handler name="org.apache.felix.ipojo:callback" state="valid"
> handler name="org.apache.felix.ipojo:provides" state="valid"
> provides specifications="[com.abc.Publisher]"
> state="registered" service.id="382"
> property name="service.pid"
> value="EventPub.ba553e85-922c-4344-bed5-ac3c0077b9fd"
> property name="factory.name" value="EventPub"
> property name="instance.name"
> value="EventPub.ba553e85-922c-4344-bed5-ac3c0077b9fd"
> handler name="com.abc.publisher.handler:endpointPublishes"
> state="valid"
> handler name="org.apache.felix.ipojo:architecture" state="valid"
>
>
>
>
> Regards,
> Kiran
>
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