SONA: openstackSwitching
-Added ARP handler
-Added OpenstackSubnet to encode and decode subnet-related message from Openstack
-Rebased with 5896 (Modified DhcpService for OpenStack)

Change-Id: Ic63e5c82d0301fa5c45d1a41548d8dc3a8b1ec57
diff --git a/apps/openstackswitching/src/main/java/org/onosproject/openstackswitching/web/OpenstackSubnetWebResource.java b/apps/openstackswitching/src/main/java/org/onosproject/openstackswitching/web/OpenstackSubnetWebResource.java
new file mode 100644
index 0000000..af1ae9d
--- /dev/null
+++ b/apps/openstackswitching/src/main/java/org/onosproject/openstackswitching/web/OpenstackSubnetWebResource.java
@@ -0,0 +1,64 @@
+/*
+ * 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.openstackswitching.web;
+
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.onosproject.openstackswitching.OpenstackSubnet;
+import org.onosproject.openstackswitching.OpenstackSwitchingService;
+import org.onosproject.rest.AbstractWebResource;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.ws.rs.Consumes;
+import javax.ws.rs.POST;
+import javax.ws.rs.Path;
+import javax.ws.rs.Produces;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import java.io.InputStream;
+
+@Path("subnets")
+public class OpenstackSubnetWebResource extends AbstractWebResource {
+    protected static final Logger log = LoggerFactory
+            .getLogger(OpenstackSubnetWebResource.class);
+
+    private static final OpenstackSubnetCodec SUBNET_CODEC = new OpenstackSubnetCodec();
+
+    @POST
+    @Consumes(MediaType.APPLICATION_JSON)
+    @Produces(MediaType.APPLICATION_JSON)
+    public Response createSubnet(InputStream input) {
+        try {
+            ObjectMapper mapper = new ObjectMapper();
+            ObjectNode subnetNode = (ObjectNode) mapper.readTree(input);
+
+            OpenstackSubnet openstackSubnet = SUBNET_CODEC.decode(subnetNode, this);
+
+            OpenstackSwitchingService switchingService = get(OpenstackSwitchingService.class);
+            switchingService.createSubnet(openstackSubnet);
+            log.info("REST API subnets is called with {}", subnetNode.toString());
+            return Response.status(Response.Status.OK).build();
+        } catch (Exception e) {
+            log.error("Creates VirtualSubnet failed because of exception {}",
+                    e.toString());
+            return Response.status(Response.Status.INTERNAL_SERVER_ERROR).entity(e.toString())
+                    .build();
+        }
+    }
+
+}