ONOS-5182 Simplified OpenStack networking application structure

Change-Id: Ic7941f2c9a2febec4f24745278c4c305a3937097
diff --git a/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/web/OpenstackFloatingIpWebResource.java b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/web/OpenstackFloatingIpWebResource.java
new file mode 100644
index 0000000..a6880fd
--- /dev/null
+++ b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/web/OpenstackFloatingIpWebResource.java
@@ -0,0 +1,133 @@
+/*
+ * Copyright 2016-present 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.openstacknetworking.web;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.onosproject.openstackinterface.OpenstackFloatingIP;
+import org.onosproject.openstackinterface.web.OpenstackFloatingIpCodec;
+import org.onosproject.openstacknetworking.api.OpenstackFloatingIpService;
+import org.onosproject.rest.AbstractWebResource;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.ws.rs.Consumes;
+import javax.ws.rs.DELETE;
+import javax.ws.rs.POST;
+import javax.ws.rs.PUT;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.Produces;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import java.io.InputStream;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+/**
+ * Handles REST API call of Neutron L3 plugin.
+ */
+@Path("floatingips")
+public class OpenstackFloatingIpWebResource extends AbstractWebResource {
+    private final Logger log = LoggerFactory.getLogger(getClass());
+
+    private static final OpenstackFloatingIpCodec FLOATING_IP_CODEC = new OpenstackFloatingIpCodec();
+
+    /**
+     * Create FloatingIP.
+     *
+     * @param input JSON data describing FloatingIP
+     * @return 200 OK
+     */
+    @POST
+    @Consumes(MediaType.APPLICATION_JSON)
+    @Produces(MediaType.APPLICATION_JSON)
+    public Response createFloatingIp(InputStream input) {
+        checkNotNull(input);
+
+        try {
+            ObjectMapper mapper = new ObjectMapper();
+            ObjectNode floatingIpNode = (ObjectNode) mapper.readTree(input);
+
+            OpenstackFloatingIP osFloatingIp = FLOATING_IP_CODEC.decode(floatingIpNode, this);
+            OpenstackFloatingIpService floatingIpService =
+                    getService(OpenstackFloatingIpService.class);
+            floatingIpService.createFloatingIp(osFloatingIp);
+
+            log.debug("REST API CREATE floatingip called");
+            return Response.status(Response.Status.OK).build();
+        } catch (Exception e) {
+            log.error("createFloatingIp failed with {}", e.toString());
+            return Response.status(Response.Status.INTERNAL_SERVER_ERROR).entity(e.toString())
+                    .build();
+        }
+    }
+
+    /**
+     * Update FloatingIP.
+     *
+     * @param id    FloatingIP identifier
+     * @param input JSON data describing FloatingIP
+     * @return 200 OK
+     */
+    @PUT
+    @Path("{id}")
+    @Consumes(MediaType.APPLICATION_JSON)
+    @Produces(MediaType.APPLICATION_JSON)
+    public Response updateFloatingIp(@PathParam("id") String id, InputStream input) {
+        checkNotNull(id);
+        checkNotNull(input);
+
+        try {
+            ObjectMapper mapper = new ObjectMapper();
+            ObjectNode floatingIpNode = (ObjectNode) mapper.readTree(input);
+
+            OpenstackFloatingIP osFloatingIp = FLOATING_IP_CODEC.decode(floatingIpNode, this);
+            OpenstackFloatingIpService floatingIpService =
+                    getService(OpenstackFloatingIpService.class);
+            floatingIpService.updateFloatingIp(osFloatingIp);
+
+            log.debug("REST API UPDATE floatingip called {}", id);
+            return Response.status(Response.Status.OK).build();
+        } catch (Exception e) {
+            log.error("updateFloatingIp failed with {}", e.toString());
+            return Response.status(Response.Status.INTERNAL_SERVER_ERROR).entity(e.toString())
+                    .build();
+        }
+    }
+
+    /**
+     * Delete FloatingIP.
+     *
+     * @param id FloatingIP identifier
+     * @return 204 OK
+     */
+    @DELETE
+    @Path("{id}")
+    @Consumes(MediaType.APPLICATION_JSON)
+    public Response deleteFloatingIp(@PathParam("id") String id) {
+        checkNotNull(id);
+
+        OpenstackFloatingIpService floatingIpService =
+                getService(OpenstackFloatingIpService.class);
+        floatingIpService.deleteFloatingIp(id);
+
+        log.debug("REST API DELETE floatingip is called {}", id);
+        return Response.noContent().build();
+    }
+
+}