[ONOS-5607] Add AbstractLispRouter base class with impl classes

Change-Id: I7b79301db684b7f15307dc26be0c6e665399b01d
diff --git a/protocols/lisp/api/src/main/java/org/onosproject/lisp/ctl/DefaultLispRouter.java b/protocols/lisp/api/src/main/java/org/onosproject/lisp/ctl/DefaultLispRouter.java
new file mode 100644
index 0000000..05b3662
--- /dev/null
+++ b/protocols/lisp/api/src/main/java/org/onosproject/lisp/ctl/DefaultLispRouter.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * 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.lisp.ctl;
+
+/**
+ * A default implementation LispRouter class.
+ */
+public class DefaultLispRouter extends AbstractLispRouter implements LispRouter {
+
+    /**
+     * A default constructor.
+     *
+     * @param routerId router identifier
+     */
+    DefaultLispRouter(LispRouterId routerId) {
+        super(routerId);
+    }
+}