import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
-public abstract class AbstractBindingAwareConsumer implements BindingAwareConsumer,BundleActivator {
+public abstract class AbstractBindingAwareConsumer extends AbstractBrokerAwareActivator implements BindingAwareConsumer {
@Override
- public final void start(BundleContext context) throws Exception {
- startImpl(context);
- ServiceReference<BindingAwareBroker> brokerRef = context.getServiceReference(BindingAwareBroker.class);
- BindingAwareBroker broker = context.getService(brokerRef);
+ protected final void onBrokerAvailable(BindingAwareBroker broker, BundleContext context) {
broker.registerConsumer(this, context);
- //context.ungetService(brokerRef);
- }
-
- /**
- * Called when this bundle is started (before
- * {@link #onSessionInitiated(ProviderContext)} so the Framework can perform
- * the bundle-specific activities necessary to start this bundle. This
- * method can be used to register services or to allocate any resources that
- * this bundle needs.
- *
- * <p>
- * This method must complete and return to its caller in a timely manner.
- *
- * @param context
- * The execution context of the bundle being started.
- * @throws Exception
- * If this method throws an exception, this bundle is marked as
- * stopped and the Framework will remove this bundle's
- * listeners, unregister all services registered by this bundle,
- * and release all services used by this bundle.
- */
- protected void startImpl(BundleContext context) {
- // NOOP
- }
-
- /**
- * 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 {@code 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.
- */
- protected void stopImpl(BundleContext context) {
- // NOOP
- }
-
- @Override
- public final void stop(BundleContext context) throws Exception {
- stopImpl(context);
}
}
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
-public abstract class AbstractBindingAwareProvider implements BindingAwareProvider, BundleActivator {
-
- /**
- * Initializes the bundle.
- *
- * Implementation of initialization get's the Binding Aware Broker from
- * service registry and register itself as a {@link BindingAwareProvider}
- *
- * Callback order is:
- * <ol>
- * <li>{@link #startImpl(BundleContext)}
- * <li>{@link #onSessionInitiated(ProviderContext)}
- * <li>Registration of global {@link RpcService} implementations returned by
- * {@link #getImplementations()}
- * <li>Registration of {@link ProviderFunctionality} implementations
- * returned by {@link #getFunctionality()}
- * </ol>
- *
- */
+public abstract class AbstractBindingAwareProvider extends AbstractBrokerAwareActivator implements BindingAwareProvider {
+
@Override
- public final void start(BundleContext context) throws Exception {
- startImpl(context);
- ServiceReference<BindingAwareBroker> brokerRef = context.getServiceReference(BindingAwareBroker.class);
- BindingAwareBroker broker = context.getService(brokerRef);
-
+ protected final void onBrokerAvailable(BindingAwareBroker broker, BundleContext context) {
ProviderContext ctx = broker.registerProvider(this, context);
registerRpcImplementations(ctx);
registerFunctionality(ctx);
}
- /**
- * Called when this bundle is started (before
- * {@link #onSessionInitiated(ProviderContext)} so the Framework can perform
- * the bundle-specific activities necessary to start this bundle. This
- * method can be used to register services or to allocate any resources that
- * this bundle needs.
- *
- * <p>
- * This method must complete and return to its caller in a timely manner.
- *
- * @param context
- * The execution context of the bundle being started.
- * @throws Exception
- * If this method throws an exception, this bundle is marked as
- * stopped and the Framework will remove this bundle's
- * listeners, unregister all services registered by this bundle,
- * and release all services used by this bundle.
- */
- protected void startImpl(BundleContext context) {
- // NOOP
- }
-
- /**
- * 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 {@code 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.
- */
- protected void stopImpl(BundleContext context) {
- // NOOP
- }
-
- /**
- * Bundle stop callback
- *
- *
- * Custom implementation of bundle stop could be carried by overriding
- * {@link #stopImpl(BundleContext)} method.
- *
- */
- @Override
- public final void stop(BundleContext context) throws Exception {
- stopImpl(context);
- }
-
@Override
public Collection<? extends ProviderFunctionality> getFunctionality() {
return Collections.emptySet();
--- /dev/null
+package org.opendaylight.controller.sal.binding.api;
+
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+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;
+
+public abstract class AbstractBrokerAwareActivator implements BundleActivator {
+
+ private static final ExecutorService mdActivationPool = Executors.newCachedThreadPool();
+ private BundleContext context;
+ private ServiceTracker<BindingAwareBroker, BindingAwareBroker> tracker;
+ private BindingAwareBroker broker;
+ private ServiceTrackerCustomizer<BindingAwareBroker, BindingAwareBroker> customizer = new ServiceTrackerCustomizer<BindingAwareBroker, BindingAwareBroker>() {
+
+ @Override
+ public BindingAwareBroker addingService(ServiceReference<BindingAwareBroker> reference) {
+ broker = context.getService(reference);
+ mdActivationPool.execute(new Runnable() {
+
+ @Override
+ public void run() {
+ onBrokerAvailable(broker, context);;
+ }
+ });
+ return broker;
+ }
+
+ @Override
+ public void modifiedService(ServiceReference<BindingAwareBroker> reference, BindingAwareBroker service) {
+ // TODO Auto-generated method stub
+
+ }
+
+ @Override
+ public void removedService(ServiceReference<BindingAwareBroker> reference, BindingAwareBroker service) {
+ // TODO Auto-generated method stub
+
+ }
+
+ };
+
+
+ @Override
+ public final void start(BundleContext context) throws Exception {
+ this.context = context;
+ startImpl(context);
+ tracker = new ServiceTracker<>(context, BindingAwareBroker.class, customizer);
+ tracker.open();
+
+ }
+
+
+
+ @Override
+ public final void stop(BundleContext context) throws Exception {
+ tracker.close();
+ stopImpl(context);
+ }
+
+
+ /**
+ * Called when this bundle is started (before
+ * {@link #onSessionInitiated(ProviderContext)} so the Framework can perform
+ * the bundle-specific activities necessary to start this bundle. This
+ * method can be used to register services or to allocate any resources that
+ * this bundle needs.
+ *
+ * <p>
+ * This method must complete and return to its caller in a timely manner.
+ *
+ * @param context
+ * The execution context of the bundle being started.
+ * @throws Exception
+ * If this method throws an exception, this bundle is marked as
+ * stopped and the Framework will remove this bundle's
+ * listeners, unregister all services registered by this bundle,
+ * and release all services used by this bundle.
+ */
+ protected void startImpl(BundleContext context) {
+ // NOOP
+ }
+
+ /**
+ * 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 {@code 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.
+ */
+ protected void stopImpl(BundleContext context) {
+ // NOOP
+ }
+
+
+ protected abstract void onBrokerAvailable(BindingAwareBroker broker, BundleContext context);
+
+ protected void onBrokerRemoved(BindingAwareBroker broker, BundleContext context) {
+
+ }
+}