import java.util.Collection;
import java.util.Collections;
-
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
import org.osgi.util.tracker.ServiceTracker;
import org.osgi.util.tracker.ServiceTrackerCustomizer;
+/**
+ * Deprecated.
+ *
+ * @deprecated Use blueprint instead for code wiring.
+ */
+@Deprecated
public abstract class AbstractConsumer implements Consumer, BundleActivator,ServiceTrackerCustomizer<Broker, Broker> {
-
-
-
private BundleContext context;
private ServiceTracker<Broker, Broker> tracker;
private Broker broker;
@Override
- public final void start(BundleContext context) throws Exception {
- this.context = context;
- this.startImpl(context);
- tracker = new ServiceTracker<>(context, Broker.class, this);
+ public final void start(final BundleContext bundleContext) throws Exception {
+ this.context = bundleContext;
+ this.startImpl(bundleContext);
+ tracker = new ServiceTracker<>(bundleContext, Broker.class, this);
tracker.open();
}
-
-
@Override
- public final void stop(BundleContext context) throws Exception {
- stopImpl(context);
+ public final void stop(final BundleContext bundleContext) throws Exception {
+ stopImpl(bundleContext);
broker = null;
- tracker.close();
+
+ if (tracker != null) {
+ tracker.close();
+ }
}
- protected void startImpl(BundleContext context) {
+ protected void startImpl(final BundleContext bundleContext) {
// NOOP
}
- protected void stopImpl(BundleContext context) {
+
+ protected void stopImpl(final BundleContext bundleContext) {
// NOOP
}
return Collections.emptySet();
}
-
+
@Override
- public Broker addingService(ServiceReference<Broker> reference) {
- if(broker == null) {
+ public Broker addingService(final ServiceReference<Broker> reference) {
+ if (broker == null && context != null) {
broker = context.getService(reference);
broker.registerConsumer(this, context);
return broker;
}
-
+
return null;
}
-
+
@Override
- public void modifiedService(ServiceReference<Broker> reference, Broker service) {
+ public void modifiedService(final ServiceReference<Broker> reference, final Broker service) {
// NOOP
}
-
+
@Override
- public void removedService(ServiceReference<Broker> reference, Broker service) {
+ public void removedService(final ServiceReference<Broker> reference, final Broker service) {
stopImpl(context);
}
}