Added mechanism for apps to easily add their own custom link/node/host highlighting wihout having to create a new UI extensions
Change-Id: Iefa21d76190c60db79a4b07a8b22e301d29fe58e
diff --git a/core/api/src/main/java/org/onosproject/ui/UiTopoHighlighter.java b/core/api/src/main/java/org/onosproject/ui/UiTopoHighlighter.java
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+++ b/core/api/src/main/java/org/onosproject/ui/UiTopoHighlighter.java
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+/*
+ * Copyright 2021-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.ui;
+
+import org.onosproject.ui.topo.Highlights;
+
+/**
+ * Abstraction of an entity capable of generating a set of topology highlights
+ * for devices, hosts and links.
+ */
+public interface UiTopoHighlighter {
+
+ /**
+ * Returns the self-assigned name of the hilighter.
+ *
+ * @return highlighter name
+ */
+ String name();
+
+ /**
+ * Generate a set of highlights.
+ *
+ * @return topology highlights
+ */
+ Highlights createHighlights();
+
+}