chore: More detailed logging for ignored handling

flow-server/src/main/java/com/vaadin/flow/component/ComponentUtil.java

@@ -45,6 +45,7 @@
 import com.vaadin.flow.internal.StateTree;
 import com.vaadin.flow.internal.nodefeature.ElementData;
 import com.vaadin.flow.internal.nodefeature.VirtualChildrenList;
+import com.vaadin.flow.router.Route;
 import com.vaadin.flow.router.Router;
 import com.vaadin.flow.server.Attributes;
 import com.vaadin.flow.server.VaadinService;
@@ -723,4 +724,22 @@ public static Router getRouter(HasElement component) {
         return router;
     }
 
+    /**
+     * Walk up from given component until a Component with a Route annotation is
+     * found or empty if no Route is present in parents.
+     *
+     * @param component
+     *            Component to find current route component for
+     * @return Optional containing Route component if found
+     */
+    public static Optional<Component> getRouteComponent(Component component) {
+        if (component.getClass().isAnnotationPresent(Route.class)) {
+            return Optional.of(component);
+        }
+        if (component.getParent().isPresent()) {
+            return getRouteComponent(component.getParent().get());
+        }
+        return Optional.empty();
+    }
+
 }

flow-server/src/main/java/com/vaadin/flow/server/communication/rpc/AbstractRpcInvocationHandler.java

@@ -22,9 +22,14 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import com.vaadin.flow.component.Component;
+import com.vaadin.flow.component.ComponentUtil;
 import com.vaadin.flow.component.PollEvent;
 import com.vaadin.flow.component.UI;
+import com.vaadin.flow.dom.Element;
 import com.vaadin.flow.internal.StateNode;
+import com.vaadin.flow.internal.nodefeature.ElementData;
+import com.vaadin.flow.router.Route;
 import com.vaadin.flow.shared.JsonConstants;
 import elemental.json.JsonObject;
 
@@ -59,21 +64,43 @@ public Optional<Runnable> handle(UI ui, JsonObject invocationJson) {
         // ignore RPC requests from the client side for the nodes that are
         // invisible, disabled or inert
         if (node.isInactive()) {
-            getLogger().info("Ignored RPC for invocation handler '{}' from "
-                    + "the client side for an inactive (disabled or invisible) node id='{}'",
-                    getClass().getName(), node.getId());
+            logHandlingIgnoredMessage(node, "inactive (disabled or invisible)");
             return Optional.empty();
         } else if (!allowInert(ui, invocationJson) && node.isInert()) {
-            getLogger().info(
-                    "Ignored RPC for invocation handler '{}' from "
-                            + "the client side for an inert node id='{}'",
-                    getClass().getName(), node.getId());
+            logHandlingIgnoredMessage(node, "inert");
             return Optional.empty();
         } else {
             return handleNode(node, invocationJson);
         }
     }
 
+    private void logHandlingIgnoredMessage(StateNode node, String reason) {
+        StringBuilder targetInfo = new StringBuilder();
+        if (node != null && node.hasFeature(ElementData.class)) {
+            Element element = Element.get(node);
+            Optional<Component> component = element.getComponent();
+            targetInfo.append(" element with tag").append("'")
+                    .append(element.getTag()).append("'");
+            if (component.isPresent()) {
+                targetInfo.append(" Component: ").append("'")
+                        .append(component.get().getClass().getName())
+                        .append("'");
+                Optional<Component> routeComponent = ComponentUtil
+                        .getRouteComponent(component.get());
+                if (routeComponent.isPresent()) {
+                    targetInfo.append(" Route: ").append("'")
+                            .append(routeComponent.get().getClass()
+                                    .getAnnotation(Route.class).value())
+                            .append("'");
+                }
+            }
+        }
+        getLogger().info(
+                "Ignored RPC for invocation handler '{}' from "
+                        + "the client side for an {} node id='{}'{}",
+                getClass().getName(), reason, node.getId(), targetInfo);
+    }
+
     /**
      * Checks whether a Poll RPC invocation is valid or not.
      *