---
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.util.tracker.ServiceTracker;
import org.osgi.framework.ServiceReference;
public class MyBundleActivator implements BundleActivator {
private ServiceTracker<MyServiceInterface, MyServiceInterface> tracker;
public void start(BundleContext context) {
tracker = new ServiceTracker<MyServiceInterface, MyServiceInterface>(context, MyServiceInterface.class, null) {
public MyServiceInterface addingService(ServiceReference<MyServiceInterface> ref) {
MyServiceInterface service = (MyServiceInterface) context.getService(ref);
return service;
}
public void removedService(ServiceReference<MyServiceInterface> ref, MyServiceInterface service) {
context.ungetService(ref);
}
};
tracker.open();
}
public void stop(BundleContext context) {
tracker.close();
}
}
import org.osgi.service.cm.Configuration;
import org.osgi.service.cm.ConfigurationAdmin;
public class ConfigurationHandler {
private ConfigurationAdmin configAdmin;
public void updateTrackerConfiguration(String serviceFilter) throws IOException {
Configuration config = configAdmin.getConfiguration("my.tracker.config");
Dictionary<String, Object> properties = config.getProperties();
properties.put("service.filter", serviceFilter);
config.update(properties);
}
}
