private <T> boolean listenForServiceType(
final ServiceReference serviceReference,
final int eventType,
final Class<T> claz,
final OSGIServiceRegistration<T> registration) {
// Make sure we can retrieve the plugin name
final String serviceName =
(String) serviceReference.getProperty(OSGIPluginProperties.PLUGIN_NAME_PROP);
if (serviceName == null || !checkSanityPluginRegistrationName(serviceName)) {
// Quite common for non Killbill bundles
logger.debug(
"Ignoring registered OSGI service {} with no {} property",
claz.getName(),
OSGIPluginProperties.PLUGIN_NAME_PROP);
return true;
}
final Object theServiceObject = context.getService(serviceReference);
// Is that for us? We look for a subclass here for greater flexibility (e.g. HttpServlet for a
// Servlet service)
if (theServiceObject == null || !claz.isAssignableFrom(theServiceObject.getClass())) {
return false;
}
final T theService = (T) theServiceObject;
final OSGIServiceDescriptor desc =
new DefaultOSGIServiceDescriptor(
serviceReference.getBundle().getSymbolicName(),
bundleRegistry.getPluginName(serviceReference.getBundle()),
serviceName);
switch (eventType) {
case ServiceEvent.REGISTERED:
final T wrappedService =
ContextClassLoaderHelper.getWrappedServiceWithCorrectContextClassLoader(
theService, registration.getServiceType(), serviceName, metricsRegistry);
registration.registerService(desc, wrappedService);
bundleRegistry.registerService(desc, registration.getServiceType().getName());
break;
case ServiceEvent.UNREGISTERING:
registration.unregisterService(desc.getRegistrationName());
bundleRegistry.unregisterService(desc, registration.getServiceType().getName());
break;
default:
break;
}
return true;
}
@Override
public void serviceChanged(final ServiceEvent event) {
if (context == null
|| (event.getType() != ServiceEvent.REGISTERED
&& event.getType() != ServiceEvent.UNREGISTERING)) {
// We are not initialized or uninterested
return;
}
final ServiceReference serviceReference = event.getServiceReference();
for (final OSGIServiceRegistration cur : allRegistrationHandlers) {
if (listenForServiceType(serviceReference, event.getType(), cur.getServiceType(), cur)) {
break;
}
}
}
