Separated OpenstackInterface feature from OpenstackNetworking application.

Change-Id: I4766de7e93c5b432c50a2167b9a9d9d4605b1ad2
diff --git a/apps/openstackinterface/api/src/main/java/org/onosproject/openstackinterface/OpenstackInterfaceService.java b/apps/openstackinterface/api/src/main/java/org/onosproject/openstackinterface/OpenstackInterfaceService.java
new file mode 100644
index 0000000..f565fb2
--- /dev/null
+++ b/apps/openstackinterface/api/src/main/java/org/onosproject/openstackinterface/OpenstackInterfaceService.java
@@ -0,0 +1,110 @@
+/*
+ * Copyright 2015-2016 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.openstackinterface;
+
+import org.onosproject.net.Port;
+
+import java.util.Collection;
+
+/**
+ * Handles port management REST API from Openstack for VMs.
+ */
+public interface OpenstackInterfaceService {
+
+    /**
+     * Returns port information list for the network ID given.
+     *
+     * @param networkId Network ID of the ports
+     * @return port information list
+     */
+    Collection<OpenstackPort> ports(String networkId);
+
+    /**
+     * Returns port information list.
+     *
+     * @return port information list
+     */
+    Collection<OpenstackPort> ports();
+    /**
+     * Returns port information for the port given.
+     *
+     * @param port port reference
+     * @return port information
+     */
+    OpenstackPort port(Port port);
+
+    /**
+     * Returns port information for the port ID given.
+     *
+     * @param portId Port ID
+     * @return port information
+     */
+    OpenstackPort port(String portId);
+
+    /**
+     * Returns network information list for the network ID given.
+     *
+     * @param networkId Network ID
+     * @return network information, or null if not present
+     */
+    OpenstackNetwork network(String networkId);
+
+    /**
+     * Returns the information of all openstack networks.
+     *
+     * @return collection of network information
+     */
+    Collection<OpenstackNetwork> networks();
+
+    /**
+     * Returns subnet information for the subnet ID give.
+     *
+     * @param subnetId Subnet ID
+     * @return subnet information, or null if not present
+     */
+    OpenstackSubnet subnet(String subnetId);
+
+    /**
+     * Returns collection of openstack subnet information.
+     *
+     * @return collection of openststack subnet information
+     */
+    Collection<OpenstackSubnet> subnets();
+
+    /**
+     * Returns the router information list.
+     *
+     * @return router information list
+     */
+    Collection<OpenstackRouter> routers();
+
+    /**
+     * Returns the router information for the router ID given.
+     *
+     * @param routerId router ID
+     * @return router information
+     */
+    OpenstackRouter router(String routerId);
+
+    /**
+     * Returns Security Group information of the security groupd id given.
+     *
+     * @param id security group id
+     * @return security group information
+     */
+    OpenstackSecurityGroup getSecurityGroup(String id);
+
+}