[ONOS-6958] Add glyph registration java code
Change-Id: I954c790062f8ff5498c34c334827c4f695278a9e
diff --git a/core/api/src/main/java/org/onosproject/ui/UiGlyphFactory.java b/core/api/src/main/java/org/onosproject/ui/UiGlyphFactory.java
new file mode 100644
index 0000000..c98c0e2
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/ui/UiGlyphFactory.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright 2018 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 java.util.List;
+
+/**
+ * Abstraction of an entity capable of producing one or more glyphs for the
+ * topology view.
+ */
+public interface UiGlyphFactory {
+
+ /**
+ * Produces a list of glyphns to be added to the topology view.
+ *
+ * @return list of glyphs
+ */
+ List<UiGlyph> glyphs();
+}