[ONOS-2817]: add routerService and floatingIpService api

Change-Id: I87bc6e03036b08b932a5e2a9c1b4bd50e4358538
diff --git a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/floatingip/FloatingIpEvent.java b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/floatingip/FloatingIpEvent.java
new file mode 100644
index 0000000..f76007f
--- /dev/null
+++ b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/floatingip/FloatingIpEvent.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2015 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.vtnrsc.floatingip;
+
+import org.onosproject.event.AbstractEvent;
+import org.onosproject.vtnrsc.FloatingIp;
+
+/**
+ * Describes network Floating IP event.
+ */
+public class FloatingIpEvent
+        extends AbstractEvent<FloatingIpEvent.Type, FloatingIp> {
+    /**
+     * Type of Floating IP events.
+     */
+    public enum Type {
+        /**
+         * Signifies that Floating IP has been created.
+         */
+        FLOATINGIP_PUT,
+        /**
+         * Signifies that Floating IP has been deleted.
+         */
+        FLOATINGIP_DELETE
+    }
+
+    /**
+     * Creates an event of a given type and for the specified Floating IP.
+     *
+     * @param type Floating IP event type
+     * @param floagingIp Floating IP subject
+     */
+    public FloatingIpEvent(Type type, FloatingIp floagingIp) {
+        super(type, floagingIp);
+    }
+
+    /**
+     * Creates an event of a given type and for the specified Floating IP.
+     *
+     * @param type Floating IP event type
+     * @param floagingIp Floating IP subject
+     * @param time occurrence time
+     */
+    public FloatingIpEvent(Type type, FloatingIp floagingIp, long time) {
+        super(type, floagingIp, time);
+    }
+}