[Emu] CORD-151 initial sketch for CORD virtual network service

Change-Id: If0dfd71b2c14ed5ebaa28adfb8fefbb26b5ca9fd
diff --git a/apps/cordvtn/src/main/java/org/onosproject/cordvtn/OvsdbNode.java b/apps/cordvtn/src/main/java/org/onosproject/cordvtn/OvsdbNode.java
new file mode 100644
index 0000000..75e61d7
--- /dev/null
+++ b/apps/cordvtn/src/main/java/org/onosproject/cordvtn/OvsdbNode.java
@@ -0,0 +1,90 @@
+/*
+ * Copyright 2014-2015 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.cordvtn;
+
+import org.onlab.packet.IpAddress;
+import org.onlab.packet.TpPort;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.behaviour.BridgeConfig;
+import org.onosproject.net.behaviour.TunnelConfig;
+
+/**
+ * Representation of a node with ovsdb server.
+ */
+public interface OvsdbNode {
+    /**
+     * State of the ovsdb node.
+     */
+    enum State {
+        READY, CONNECTED, DISCONNECTED
+    }
+
+    /**
+     * Returns the IP address of ovsdb server.
+     *
+     * @return ip address
+     */
+    IpAddress ip();
+
+    /**
+     * Returns the port number of ovsdb server.
+     *
+     * @return port number
+     */
+    TpPort port();
+
+    /**
+     * Returns the state of the node.
+     *
+     * @return state of the node
+     */
+    State getState();
+
+    /**
+     * Sets the state of the node.
+     *
+     * @param state state of the node
+     */
+    void setState(State state);
+
+    /**
+     * Returns the device ID of the node.
+     *
+     * @return device id
+     */
+    DeviceId getDeviceId();
+
+    /**
+     * Sets the device id of the node.
+     *
+     * @param deviceId device identifier
+     */
+    void setDeviceId(DeviceId deviceId);
+
+    /**
+     * Returns the bridge configuration handler of the node.
+     *
+     * @return bridge config behavior instance
+     */
+    BridgeConfig getBridgeConfig();
+
+    /**
+     * Returns the tunnel configuration handler of the node.
+     *
+     * @return tunnel config behavior instance
+     */
+    TunnelConfig getTunnelConfig();
+}