Re: [ecf-dev] in ECF service client, how to get the ID of a service bein

[Scott Lewis <slewis@xxxxxxxxxxxxx>]

Hi David,

David Donohue wrote:
> Hello,
> My ECF client is using ServiceTracker to be notified of services from
> remote servers.  Using generic service.  My method
> addingService(ServiceReference reference)
> gets called whenever a new service starts up.  In that method, how can
> I identify what is the ID/URI of a server that hosts the service?
>   

The OSGi remote services specification does not require/guarantee that 
the ID/URI of the service host be available via the proxy's service 
reference.

Having said that, you can/could add the ID as custom service property on 
registration...e.g. on service host registration:

Properties props = new Properties();
props.put("myHostContainerName",containerID.getName());
context.registerService(svcInterfaces,svcImpl,props);

And then on the receiver side you can/could lookup and use the value of 
the "myHostContainerName" property e.g.

remoteHostContainerName = reference.getProperty("myHostContainerName");

If you wish, another way with ECF's remote services, you can/could also 
use the RemoteServiceTracker 
(class=org.eclipse.ecf.remoteservice.util.tracker.RemoteServiceTracker).  
The advantage of this is that then you will get the 
IRemoteServiceReference in the addingService call and be able to access 
the remote host containerID directly...e.g.

public IRemoteService addingService(IRemoteServiceReference rref) {

ID remoteContainerID = rref.getID().getContainerID();
...Do what you wish with it.


Thanks,

Scott


> Thanks,
> David Donohue
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