[ONOS-3947] Implement Openstack FloatingIP REST call json parser

 - Implement Openstack FloatingIP REST call json parser

Change-Id: I6123bc13eea00a973bdec3ff5503949b25ebceca

+/*
+ * Copyright 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.web;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.onlab.packet.Ip4Address;
+import org.onosproject.codec.CodecContext;
+import org.onosproject.codec.JsonCodec;
+import org.onosproject.openstackinterface.OpenstackFloatingIP;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+/**
+ * Implementation of the OpenstackFloatingIP Codec.
+ */
+public class OpenstackFloatingIpCodec extends JsonCodec<OpenstackFloatingIP> {
+    private final Logger log = LoggerFactory.getLogger(getClass());
+
+    private static final String FLOATINGIP = "floatingip";
+    private static final String FLOATING_NETWORK_ID = "floating_network_id";
+    private static final String ROUTER_ID = "router_id";
+    private static final String FIXED_IP_ADDRESS = "fixed_ip_address";
+    private static final String FLOATING_IP_ADDRESS = "floating_ip_address";
+    private static final String TENANT_ID = "tenant_id";
+    private static final String STATUS = "status";
+    private static final String PORT_ID = "port_id";
+    private static final String ID = "id";
+
+    /**
+     * Decodes the OpenstackFloatingIP.
+     *
+     * @param json    JSON to decode
+     * @param context decoding context
+     * @return OpenstackFloatingIP
+     */
+    @Override
+    public OpenstackFloatingIP decode(ObjectNode json, CodecContext context) {
+        if (json == null || !json.isObject()) {
+            return null;
+        }
+
+        JsonNode floatingIpInfo = json.get(FLOATINGIP);
+        if (floatingIpInfo == null) {
+            floatingIpInfo = json;
+        }
+
+        String networkId = floatingIpInfo.path(FLOATING_NETWORK_ID).asText();
+        String routerId = floatingIpInfo.path(ROUTER_ID).asText();
+        String fixedIpAddressStr = floatingIpInfo.path(FIXED_IP_ADDRESS).asText();
+        String floatingIpAddressStr = floatingIpInfo.path(FLOATING_IP_ADDRESS).asText();
+        String tenantId = floatingIpInfo.path(TENANT_ID).asText();
+        String statusStr = floatingIpInfo.path(STATUS).asText();
+        String portId = floatingIpInfo.path(PORT_ID).asText();
+        String id = floatingIpInfo.path(ID).asText();
+
+        checkNotNull(networkId);
+        checkNotNull(floatingIpAddressStr);
+        checkNotNull(tenantId);
+        checkNotNull(statusStr);
+        checkNotNull(id);
+
+        if (routerId != null && routerId.equals("null")) {
+            routerId = null;
+        }
+
+        Ip4Address fixedIpAddress = null;
+        if (fixedIpAddressStr != null && !fixedIpAddressStr.equals("null")) {
+            fixedIpAddress = Ip4Address.valueOf(fixedIpAddressStr);
+        }
+
+        Ip4Address floatingIpAddress = Ip4Address.valueOf(floatingIpAddressStr);
+
+        OpenstackFloatingIP.FloatingIpStatus status =
+                OpenstackFloatingIP.FloatingIpStatus.valueOf(statusStr);
+
+        if (portId != null && portId.equals("null")) {
+            portId = null;
+        }
+
+        OpenstackFloatingIP.Builder osFloatingIpBuilder =
+                new OpenstackFloatingIP.Builder();
+
+        return osFloatingIpBuilder.networkId(networkId)
+                .routerId(routerId)
+                .fixedIpAddress(fixedIpAddress)
+                .floatingIpAddress(floatingIpAddress)
+                .tenantId(tenantId)
+                .status(status)
+                .portId(portId)
+                .id(id)
+                .build();
+    }
+
+}

+/*
+ * Copyright 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.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.OpenstackRoutingService;
+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);
+
+            OpenstackRoutingService routingService =
+                    getService(OpenstackRoutingService.class);
+
+            routingService.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);
+
+            OpenstackRoutingService routingService =
+                    getService(OpenstackRoutingService.class);
+
+            routingService.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 200 OK
+     */
+    @DELETE
+    @Path("{id}")
+    @Produces(MediaType.APPLICATION_JSON)
+    public Response deleteFloatingIp(@PathParam("id") String id) {
+        checkNotNull(id);
+
+        OpenstackRoutingService routingService =
+                getService(OpenstackRoutingService.class);
+        routingService.deleteFloatingIP(id);
+
+        log.debug("REST API DELETE floatingip is called {}", id);
+
+        return Response.status(Response.Status.OK).build();
+    }
+
+}

@@ -33,7 +33,8 @@
                 org.onosproject.openstacknetworking.web.OpenstackPortWebResource,
                 org.onosproject.openstacknetworking.web.OpenstackNetworkWebResource,
                 org.onosproject.openstacknetworking.web.OpenstackSubnetWebResource,
-                org.onosproject.openstacknetworking.web.OpensatckRouterWebResource
+                org.onosproject.openstacknetworking.web.OpensatckRouterWebResource,
+                org.onosproject.openstacknetworking.web.OpenstackFloatingIpWebResource
             </param-value>
         </init-param>
         <load-on-startup>1</load-on-startup>