Notification Listener Adapter uses NotificationListenerInvoker
[controller.git] / opendaylight / md-sal / sal-binding-broker / src / main / java / org / opendaylight / controller / md / sal / binding / impl / BindingDOMNotificationListenerAdapter.java
index 03da296..c9a1756 100644 (file)
@@ -7,27 +7,77 @@
  */
 package org.opendaylight.controller.md.sal.binding.impl;
 
+import com.google.common.collect.ImmutableMap;
+import java.lang.reflect.Method;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
 import javax.annotation.Nonnull;
 import org.opendaylight.controller.md.sal.dom.api.DOMNotification;
 import org.opendaylight.controller.md.sal.dom.api.DOMNotificationListener;
-import org.opendaylight.controller.sal.binding.spi.NotificationInvokerFactory;
 import org.opendaylight.yangtools.binding.data.codec.api.BindingNormalizedNodeSerializer;
 import org.opendaylight.yangtools.yang.binding.Notification;
+import org.opendaylight.yangtools.yang.binding.NotificationListener;
+import org.opendaylight.yangtools.yang.binding.util.BindingReflections;
+import org.opendaylight.yangtools.yang.binding.util.NotificationListenerInvoker;
+import org.opendaylight.yangtools.yang.common.QName;
+import org.opendaylight.yangtools.yang.model.api.SchemaPath;
 
 class BindingDOMNotificationListenerAdapter implements DOMNotificationListener {
 
-    private final NotificationInvokerFactory.NotificationInvoker invoker;
     private final BindingNormalizedNodeSerializer codec;
+    private final NotificationListener delegate;
+    private final Map<SchemaPath,NotificationListenerInvoker> invokers;
 
-    public BindingDOMNotificationListenerAdapter(final BindingNormalizedNodeSerializer codec, final NotificationInvokerFactory.NotificationInvoker invoker) {
+    public BindingDOMNotificationListenerAdapter(final BindingNormalizedNodeSerializer codec, final NotificationListener delegate) {
         this.codec = codec;
-        this.invoker = invoker;
+        this.delegate = delegate;
+        this.invokers = createInvokerMapFor(delegate.getClass());
     }
 
     @Override
     public void onNotification(@Nonnull final DOMNotification notification) {
         final Notification baNotification =
                 codec.fromNormalizedNodeNotification(notification.getType(), notification.getBody());
-        invoker.getInvocationProxy().onNotification(baNotification);
+        final QName notificationQName = notification.getType().getLastComponent();
+        getInvoker(notification.getType()).invokeNotification(delegate, notificationQName, baNotification);
+    }
+
+    private NotificationListenerInvoker getInvoker(final SchemaPath type) {
+        return invokers.get(type);
+    }
+
+    protected Set<SchemaPath> getSupportedNotifications() {
+        return invokers.keySet();
+    }
+
+    private static Map<SchemaPath, NotificationListenerInvoker> createInvokerMapFor(final Class<? extends NotificationListener> implClz) {
+        final Map<SchemaPath, NotificationListenerInvoker> builder = new HashMap<>();
+        for(final Class<?> iface : implClz.getInterfaces()) {
+            if(NotificationListener.class.isAssignableFrom(iface) && BindingReflections.isBindingClass(iface)) {
+                @SuppressWarnings("unchecked")
+                final Class<? extends NotificationListener> listenerType = (Class<? extends NotificationListener>) iface;
+                final NotificationListenerInvoker invoker = NotificationListenerInvoker.from(listenerType);
+                for(final SchemaPath path : getNotificationTypes(listenerType)) {
+                    builder.put(path, invoker);
+                }
+            }
+        }
+        return ImmutableMap.copyOf(builder);
+    }
+
+    private static Set<SchemaPath> getNotificationTypes(final Class<? extends NotificationListener> type) {
+        // TODO: Investigate possibility and performance impact if we cache this or expose
+        // it from NotificationListenerInvoker
+        final Set<SchemaPath> ret = new HashSet<>();
+        for(final Method method : type.getMethods()) {
+            if(BindingReflections.isNotificationCallback(method)) {
+                final Class<?> notification = method.getParameterTypes()[0];
+                final QName name = BindingReflections.findQName(notification);
+                ret.add(SchemaPath.create(true, name));
+            }
+        }
+        return ret;
     }
 }
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