Cellar and remote services

[Frédéric POULET <fr...@magellium.fr>]

Hi,

I'm testing cellar and I'm asking  myself the following question : Is it possible to access a remote service without use blueprint ? Because when I execute this below code, I not see my service.

final ServiceReference[] serviceReferences = Service1Impl.this.context.getServiceReferences(null, null);

if (serviceReferences != null) {
                for (int i = 0; i < serviceReferences.length; i++) {
                               String[] a = (String[]) serviceReferences[i].getProperty("objectClass");

                               for (int j = 0; j < a.length; j++) {
                                               if (a[j].contains("cluster")) {
                                                               System.out.println(a[j]);
                                               }
                                }

                }
}

Thank you for your help

Re: Cellar and remote services

[Scott Lewis <sl...@composent.com>]

Hi Frederic,

On 3/13/2014 5:12 AM, Frédéric POULET wrote:
>
> Hi,
>
> I'm testing cellar and I'm asking  myself thefollowing question : Is 
> it possibleto access a remote service without use blueprint ?
>

The general/spec answer to this is 'yes'...following just the OSGi 
Remote Services specification (no particular impl) it should be/is 
possible to access a remote services without using blueprint.   In the 
same way that any OSGi service can be accessed in multiple ways (via 
blueprint, ServiceTracker, declarative services, via 
BundleContext/ServiceReference as per your code), according to the RS 
specification (chapter 100) a remote service (once discovered and 
imported) can similarly be accessed and used.

Now...of course there are different impls of the RS specification, and I 
can't speak for them all (i.e. whether they require use of blueprint).   
Actually, I can only speak for one [1].   But in that one we test 
many/multiple ways of accessing a remote service (on the consumer) to 
verify spec compliance.

Scott

[1] http://www.eclipse.org/ecf


> Because when I execute this below code, I not see my service.
>
> final ServiceReference[] serviceReferences = 
> Service1Impl.this.context.getServiceReferences(null, null);
>
> if (serviceReferences != null) {
>
>                 for (int i = 0; i < serviceReferences.length; i++) {
>
>                                String[] a = (String[]) 
> serviceReferences[i].getProperty("objectClass");
>
>                                for (int j = 0; j < a.length; j++) {
>
>                                if (a[j].contains("cluster")) {
>
> System.out.println(a[j]);
>
>                                }
>
>                                 }
>
>                 }
>
> }
>
> Thank you for your help
>