Simon Hunt
Committed by Gerrit Code Review

GUI -- Simpler version of DeviceGuiResource for the UI.

 D'Oh -- has to have public-no-args constructor!

Change-Id: Ib586f74bdd109385fd1772e53122e096bdd7e8d5
/*
* 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.gui;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
import org.onlab.rest.BaseResource;
import org.onosproject.net.Annotations;
import org.onosproject.net.Device;
import org.onosproject.net.device.DeviceService;
import org.slf4j.Logger;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Response;
import static org.slf4j.LoggerFactory.getLogger;
/**
* UI REST resource for interacting with the inventory of infrastructure devices.
*/
@Path("device")
public class DeviceGuiResource extends BaseResource {
private static final String ICON_ID_ONLINE = "deviceOnline";
private static final String ICON_ID_OFFLINE = "deviceOffline";
private static final Logger log = getLogger(DeviceGuiResource.class);
private final ObjectMapper mapper = new ObjectMapper();
// return list of devices
@GET
@Produces("application/json")
public Response getDevices() {
ObjectNode rootNode = mapper.createObjectNode();
ArrayNode devices = mapper.createArrayNode();
DeviceService service = get(DeviceService.class);
for (Device dev: service.getDevices()) {
devices.add(deviceJson(service, dev));
}
rootNode.set("devices", devices);
return Response.ok(rootNode.toString()).build();
}
/**
* Returns a JSON node representing the specified device.
*
* @param device infrastructure device
* @return JSON node
*/
private ObjectNode deviceJson(DeviceService service, Device device) {
boolean available = service.isAvailable(device.id());
String iconId = available ? ICON_ID_ONLINE : ICON_ID_OFFLINE;
ObjectNode result = mapper.createObjectNode();
result.put("id", device.id().toString())
.put("available", service.isAvailable(device.id()))
.put("_iconid_available", iconId)
.put("type", device.type().toString())
.put("role", service.getRole(device.id()).toString())
.put("mfr", device.manufacturer())
.put("hw", device.hwVersion())
.put("sw", device.swVersion())
.put("serial", device.serialNumber())
.set("annotations", annotations(mapper, device.annotations()));
return result;
}
/**
* Produces a JSON object from the specified key/value annotations.
*
* @param mapper ObjectMapper to use while converting to JSON
* @param annotations key/value annotations
* @return JSON object
*/
private static ObjectNode annotations(ObjectMapper mapper, Annotations annotations) {
ObjectNode result = mapper.createObjectNode();
for (String key : annotations.keys()) {
result.put(key, annotations.value(key));
}
return result;
}
}