The following message was originally posted at the eclipse.platform
newsgroup, but with regards to Peter Kriens for his assistance I
managed to subscribe here, at the official osgi mailing list.
I am a new java/osgi developer for the needs of my graduate project and
I am in the early stages of development. (searching for tutorials etc
etc)
Well here is my original request
http://i23.photobucket.com/albums/b352/grnemo/Screenshot1.jpg
http://i23.photobucket.com/albums/b352/grnemo/Screenshot2.jpg
Hello to all,
I am a new developer of java & OSGi framework.
After tutorials, java book etc etc I managed to write some code. A
bundle which acts as a primitive server. I connect to a socket and
whatever i write to the console it is logged to the log bundle
(practicing also to the reusing bundles model)
The bundle runs perfectly with the knopflerfish platform but I want to
run it inside eclipse. I have a setup of the knopflerfish (plugin) I
select the bundles I use etc etc but it doesn't find the log
service....I don't know what else to do.
I have included 2 screenshots of me working on eclipse and marked my
trouble area. If you have anything in mind I would be grateful.
Thank you in advance,
Aggelos Mpimpoudis,
Undergraduate student @ National University of Greece
PS: from the little research i did until i have reached this newsgroup
I found that I can eliminate this null problem by using service
listeners
but the context var is now my problem.
void start (BundleContext context)
...
ServiceListener sL = new ServiceListener() {
public void serviceChanged (ServiceEvent event){
ServiceReference sr = event.getServiceReference();
switch (event.getType()){
case ServiceEvent.REGISTERED:
{
logService=(LogService)context.getService(logSref);
}
break;
default:
break;
}
}
};
I have found more information since then, mostly from knopflerfish's
site and tutorial
I can't get the log service reference by any way by running as osgi
project from the eclipse run menu.
Any recommendation would be helpfull.
I have now, something like this
public class Activator implements
BundleActivator {
private final static String
filter="(objectclass=org.osgi.service.log.LogService)";
private ServiceReference logSref=null;
private LogService logService=null;
public static BundleContext bc = null;
private void startUsingService() {
this.thread = new ServiceUserThread(this.service);
this.thread.start();
}
public void start(final BundleContext bc) throws Exception {
Activator.bc = bc;
try {
ServiceListener logServiceListener = new ServiceListener() {
public void serviceChanged (ServiceEvent event){
switch (event.getType()){
case ServiceEvent.REGISTERED:{
logService=(LogService)bc.getService(event.getServiceReference());
startUsingService();
}
break;
default:
break;
}
}
};
bc.addServiceListener(logServiceListener, filter);
ServiceReference[] srl = bc.getServiceReferences(null,
filter);
for(int i = 0; srl != null && i < srl.length;
i++)
logServiceListener.serviceChanged(new
ServiceEvent(ServiceEvent.REGISTERED, srl[i]));
}
catch (Exception e) {
e.printStackTrace();
}
}
public void stop(BundleContext context) throws Exception {
context.ungetService(logSref);
logSref = null;
logService = null;
System.out.println("Goodbye World");
}
}
Am I thinking the right way? Can I proceed like this?
With great respect to the community and much enthusiasm about the osgi
middleware,
Aggelos Mpimpoudis
| Department of Informatics And Telecommunication NKUA |
|
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