[ONOS-7731] Add openstack vtap skeleton code

Change-Id: Ib3d3c757cb90a8525af3932619c3877f7f4c1b4f
diff --git a/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/web/OpenstackVtapWebResource.java b/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/web/OpenstackVtapWebResource.java
new file mode 100644
index 0000000..89468ac
--- /dev/null
+++ b/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/web/OpenstackVtapWebResource.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2018-present 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.openstackvtap.web;
+
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.onosproject.rest.AbstractWebResource;
+
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+import javax.ws.rs.Produces;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+
+/**
+ * Handles REST API call of openstack vtap.
+ */
+@Path("vtap")
+public class OpenstackVtapWebResource extends AbstractWebResource {
+
+    private final ObjectNode root = mapper().createObjectNode();
+
+    /**
+     * OpenstackVtapServiceImpl method.
+     *
+     * @return 200 OK
+     *
+     * @onos.rsModel dummy
+     */
+    @GET
+    @Produces(MediaType.APPLICATION_JSON)
+    public Response dummy() {
+        return ok(root).build();
+    }
+}