| /* |
| * 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.rest.resources; |
| |
| import java.util.Spliterator; |
| import java.util.Spliterators; |
| import java.util.stream.StreamSupport; |
| |
| import javax.ws.rs.GET; |
| import javax.ws.rs.Path; |
| import javax.ws.rs.Produces; |
| import javax.ws.rs.QueryParam; |
| import javax.ws.rs.core.Context; |
| import javax.ws.rs.core.MediaType; |
| import javax.ws.rs.core.Response; |
| import javax.ws.rs.core.UriBuilder; |
| import javax.ws.rs.core.UriInfo; |
| |
| import org.onosproject.codec.JsonCodec; |
| import org.onosproject.net.ConnectPoint; |
| import org.onosproject.net.Link; |
| import org.onosproject.net.link.LinkService; |
| import org.onosproject.net.statistic.Load; |
| import org.onosproject.net.statistic.StatisticService; |
| import org.onosproject.rest.AbstractWebResource; |
| |
| import com.fasterxml.jackson.databind.node.ArrayNode; |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| |
| import static org.onosproject.net.DeviceId.deviceId; |
| import static org.onosproject.net.PortNumber.portNumber; |
| |
| /** |
| * Statistics REST APIs. |
| */ |
| @Path("statistics") |
| public class StatisticsWebResource extends AbstractWebResource { |
| @Context |
| UriInfo uriInfo; |
| |
| /** |
| * Gets the Load statistics for all links, or for a specific link. |
| * |
| * @param deviceId (optional) device ID for a specific link |
| * @param port (optional) port number for a specified link |
| * @return JSON encoded array lof Load objects |
| */ |
| @GET |
| @Path("flows/link") |
| @Produces(MediaType.APPLICATION_JSON) |
| public Response getLoads(@QueryParam("device") String deviceId, |
| @QueryParam("port") String port) { |
| Iterable<Link> links; |
| |
| if (deviceId == null || port == null) { |
| links = get(LinkService.class).getLinks(); |
| } else { |
| ConnectPoint connectPoint = new ConnectPoint(deviceId(deviceId), |
| portNumber(port)); |
| links = get(LinkService.class).getLinks(connectPoint); |
| } |
| ObjectNode result = mapper().createObjectNode(); |
| ArrayNode loads = mapper().createArrayNode(); |
| JsonCodec<Load> loadCodec = codec(Load.class); |
| StatisticService statsService = getService(StatisticService.class); |
| |
| |
| StreamSupport.stream(Spliterators.spliteratorUnknownSize( |
| links.iterator(), Spliterator.ORDERED), false) |
| .forEach(link -> { |
| ObjectNode loadNode = loadCodec.encode(statsService.load(link), this); |
| |
| UriBuilder locationBuilder = uriInfo.getBaseUriBuilder() |
| .path("links") |
| .queryParam("device", link.src().deviceId().toString()) |
| .queryParam("port", link.src().port().toString()); |
| loadNode.put("link", locationBuilder.build().toString()); |
| loads.add(loadNode); |
| }); |
| result.set("loads", loads); |
| return ok(result).build(); |
| } |
| } |