BUG-3128: Update RPC router concepts

[controller.git] / opendaylight / md-sal / sal-dom-api / src / main / java / org / opendaylight / controller / md / sal / dom / api / DOMRpcImplementation.java

diff --git a/opendaylight/md-sal/sal-dom-api/src/main/java/org/opendaylight/controller/md/sal/dom/api/DOMRpcImplementation.java b/opendaylight/md-sal/sal-dom-api/src/main/java/org/opendaylight/controller/md/sal/dom/api/DOMRpcImplementation.java
index c246c762704ede47bc227ff91bb9038b8f1eb3df..448cbd4cc3337cfde232faa4a094ad5a9418c3fa 100644 (file)
--- a/opendaylight/md-sal/sal-dom-api/src/main/java/org/opendaylight/controller/md/sal/dom/api/DOMRpcImplementation.java
+++ b/opendaylight/md-sal/sal-dom-api/src/main/java/org/opendaylight/controller/md/sal/dom/api/DOMRpcImplementation.java
@@ -27,5 +27,15 @@ public interface DOMRpcImplementation {
      *         or report a subclass of {@link DOMRpcException} reporting a transport
      *         error.
      */
-    @Nonnull CheckedFuture<DOMRpcResult, DOMRpcException> invokeRpc(@Nonnull DOMRpcIdentifier rpc, @Nullable NormalizedNode<?, ?> input);
+    @Nonnull CheckedFuture<DOMRpcResult, DOMRpcException> invokeRpc(@Nonnull DOMRpcIdentifier rpc,
+            @Nullable NormalizedNode<?, ?> input);
+
+    /**
+     * Return the relative invocation cost of this implementation. Default implementation return 0.
+     *
+     * @return Non-negative cost of invoking this implementation.
+     */
+    default long invocationCost() {
+        return 0;
+    }
 }