/**
* Tracks and injects APSServiceTracker directly or as wrapped service instance using the tracker
* to call the service depending on the field type.
*
* @param field The field to inject.
* @param managedClass Used to lookup or create an instance of this class to inject into.
* @param context The bundle context.
*/
protected void handleServiceInjections(Field field, Class managedClass, BundleContext context) {
OSGiService service = field.getAnnotation(OSGiService.class);
if (service != null) {
String trackerKey = field.getType().getName() + service.additionalSearchCriteria();
APSServiceTracker tracker = this.trackers.get(trackerKey);
if (tracker == null) {
tracker =
new APSServiceTracker<>(
context, field.getType(), service.additionalSearchCriteria(), service.timeout());
this.trackers.put(trackerKey, tracker);
}
tracker.start();
List<Object> managedInstances = getManagedInstances(managedClass);
for (Object managedInstance : managedInstances) {
if (field.getType().equals(APSServiceTracker.class)) {
injectObject(managedInstance, tracker, field);
} else {
injectObject(managedInstance, tracker.getWrappedService(), field);
}
}
if (service.required() && this.supportsRequired) {
Tuple4<APSServiceTracker, Class, Boolean, List<ServiceRegistration>> requiredService =
new Tuple4<>(
tracker,
managedClass,
false,
(List<ServiceRegistration>) new LinkedList<ServiceRegistration>());
this.requiredServices.add(requiredService);
}
this.activatorLogger.info(
"Injected tracked service '"
+ field.getType().getName()
+ (service.additionalSearchCriteria().length() > 0
? " " + service.additionalSearchCriteria()
: "")
+ "' "
+ "into '"
+ managedClass.getName()
+ "."
+ field.getName()
+ "' for bundle: "
+ context.getBundle().getSymbolicName()
+ " for "
+ managedInstances.size()
+ " instance(s)!");
}
}
/**
* Called when this bundle is stopped so the Framework can perform the bundle-specific activities
* necessary to stop the bundle. In general, this method should undo the work that the
* `BundleActivator.start()` method started. There should be no active threads that were started
* by this bundle when this bundle returns. A stopped bundle must not call any Framework objects.
*
* <p>This method must complete and return to its caller in a timely manner.
*
* @param context The execution context of the bundle being stopped.
* @throws Exception If this method throws an exception, the bundle is still marked as stopped,
* and the Framework will remove the bundle's listeners, unregister all services registered by
* the bundle, and release all services used by the bundle.
*/
@Override
public void stop(BundleContext context) throws Exception {
if (this.services == null) {
System.err.println("ERROR: Stopping non started instance of APSActivator!");
return; // Not started!
}
Exception failure = null;
this.activatorLogger.info(
"Stopping APSActivator for bundle '"
+ context.getBundle().getSymbolicName()
+ "' with activatorMode: "
+ this.activatorMode);
for (ListenerWrapper listenerWrapper : this.listeners) {
listenerWrapper.stop(context);
}
this.listeners = null;
for (Tuple2<Method, Object> shutdownMethod : this.shutdownMethods) {
try {
shutdownMethod.t1.invoke(shutdownMethod.t2, null);
this.activatorLogger.info(
"Called bundle shutdown method '"
+ shutdownMethod.t2.getClass()
+ "."
+ shutdownMethod.t1.getName()
+ "() for bundle: "
+ context.getBundle().getSymbolicName()
+ "!");
} catch (Exception e) {
this.activatorLogger.error("Bundle stop problem!", e);
failure = e;
}
}
this.shutdownMethods = null;
for (ServiceRegistration serviceRegistration : this.services) {
try {
serviceRegistration.unregister();
} catch (Exception e) {
this.activatorLogger.error("Bundle stop problem!", e);
failure = e;
}
}
this.services = null;
for (String trackerKey : this.trackers.keySet()) {
APSServiceTracker tracker = this.trackers.get(trackerKey);
try {
tracker.stop(context);
} catch (Exception e) {
this.activatorLogger.error("Bundle stop problem!", e);
failure = e;
}
}
this.trackers = null;
for (String namedInstanceKey : this.namedInstances.keySet()) {
Object namedInstance = this.namedInstances.get(namedInstanceKey);
if (namedInstance instanceof APSLogger) {
try {
((APSLogger) namedInstance).stop(context);
} catch (Exception e) {
this.activatorLogger.error("Bundle stop problem!", e);
failure = e;
}
}
}
this.namedInstances = null;
this.activatorLogger.stop(context);
this.activatorLogger = null;
if (failure != null) {
throw new APSActivatorException("Bundle stop not entirely successful!", failure);
}
}