| /* |
| * 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.pce.rest; |
| |
| import static javax.ws.rs.core.Response.Status.OK; |
| import static org.onlab.util.Tools.nullIsNotFound; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.List; |
| import java.util.LinkedList; |
| |
| import javax.ws.rs.Consumes; |
| import javax.ws.rs.DELETE; |
| import javax.ws.rs.GET; |
| 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 org.onosproject.incubator.net.tunnel.Tunnel; |
| import org.onosproject.incubator.net.tunnel.TunnelId; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.intent.Constraint; |
| import org.onosproject.pce.pceservice.api.PceService; |
| import org.onosproject.pce.pceservice.PcePath; |
| import org.onosproject.pce.pceservice.DefaultPcePath; |
| import org.onosproject.pce.pceservice.LspType; |
| import org.onosproject.rest.AbstractWebResource; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.fasterxml.jackson.databind.JsonNode; |
| import com.fasterxml.jackson.databind.node.ArrayNode; |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| |
| /** |
| * Query and program pce path. |
| */ |
| @Path("path") |
| public class PcePathWebResource extends AbstractWebResource { |
| |
| private final Logger log = LoggerFactory.getLogger(PcePathWebResource.class); |
| public static final String PCE_PATH_NOT_FOUND = "Path not found"; |
| public static final String PCE_PATH_ID_EXIST = "Path exists"; |
| public static final String PCE_PATH_ID_NOT_EXIST = "Path does not exist for the identifier"; |
| public static final String PCE_SETUP_PATH_FAILED = "PCE Setup path has failed."; |
| |
| /** |
| * Retrieve details of all paths created. |
| * |
| * @return 200 OK |
| */ |
| @GET |
| @Produces(MediaType.APPLICATION_JSON) |
| public Response queryAllPath() { |
| log.debug("Query all paths."); |
| Iterable<Tunnel> tunnels = get(PceService.class).queryAllPath(); |
| ObjectNode result = mapper().createObjectNode(); |
| ArrayNode pathEntry = result.putArray("paths"); |
| if (tunnels != null) { |
| for (final Tunnel tunnel : tunnels) { |
| PcePath path = DefaultPcePath.builder().of(tunnel).build(); |
| pathEntry.add(codec(PcePath.class).encode(path, this)); |
| } |
| } |
| return ok(result.toString()).build(); |
| } |
| |
| /** |
| * Retrieve details of a specified path id. |
| * |
| * @param id path id |
| * @return 200 OK, 404 if given identifier does not exist |
| */ |
| @GET |
| @Path("{path_id}") |
| @Produces(MediaType.APPLICATION_JSON) |
| public Response queryPath(@PathParam("path_id") String id) { |
| log.debug("Query path by identifier {}.", id); |
| Tunnel tunnel = nullIsNotFound(get(PceService.class).queryPath(TunnelId.valueOf(id)), |
| PCE_PATH_NOT_FOUND); |
| PcePath path = DefaultPcePath.builder().of(tunnel).build(); |
| ObjectNode result = mapper().createObjectNode(); |
| result.set("path", codec(PcePath.class).encode(path, this)); |
| return ok(result.toString()).build(); |
| } |
| |
| /** |
| * Creates a new path. |
| * |
| * @param stream pce path from json |
| * @return status of the request |
| */ |
| @POST |
| @Consumes(MediaType.APPLICATION_JSON) |
| @Produces(MediaType.APPLICATION_JSON) |
| public Response setupPath(InputStream stream) { |
| log.debug("Setup path."); |
| try { |
| ObjectNode jsonTree = (ObjectNode) mapper().readTree(stream); |
| JsonNode port = jsonTree.get("path"); |
| PcePath path = codec(PcePath.class).decode((ObjectNode) port, this); |
| |
| DeviceId srcDevice = DeviceId.deviceId(path.source()); |
| DeviceId dstDevice = DeviceId.deviceId(path.destination()); |
| LspType lspType = path.lspType(); |
| List<Constraint> listConstrnt = new LinkedList<Constraint>(); |
| |
| // Add bandwidth |
| listConstrnt.add(path.bandwidthConstraint()); |
| |
| // Add cost |
| listConstrnt.add(path.costConstraint()); |
| |
| Boolean issuccess = nullIsNotFound(get(PceService.class) |
| .setupPath(srcDevice, dstDevice, path.name(), listConstrnt, lspType), |
| PCE_SETUP_PATH_FAILED); |
| return Response.status(OK).entity(issuccess.toString()).build(); |
| } catch (IOException e) { |
| log.error("Exception while creating path {}.", e.toString()); |
| throw new IllegalArgumentException(e); |
| } |
| } |
| |
| /** |
| * Update details of a specified path id. |
| * |
| * @param id path id |
| * @param stream pce path from json |
| * @return 200 OK, 404 if given identifier does not exist |
| */ |
| @PUT |
| @Path("{path_id}") |
| @Produces(MediaType.APPLICATION_JSON) |
| @Consumes(MediaType.APPLICATION_JSON) |
| public Response updatePath(@PathParam("path_id") String id, |
| final InputStream stream) { |
| log.debug("Update path by identifier {}.", id); |
| try { |
| ObjectNode jsonTree = (ObjectNode) mapper().readTree(stream); |
| JsonNode pathNode = jsonTree.get("path"); |
| PcePath path = codec(PcePath.class).decode((ObjectNode) pathNode, this); |
| List<Constraint> constrntList = new LinkedList<Constraint>(); |
| // Assign bandwidth |
| if (path.bandwidthConstraint() != null) { |
| constrntList.add(path.bandwidthConstraint()); |
| } |
| |
| // Assign cost |
| if (path.costConstraint() != null) { |
| constrntList.add(path.costConstraint()); |
| } |
| |
| Boolean result = nullIsNotFound(get(PceService.class).updatePath(TunnelId.valueOf(id), constrntList), |
| PCE_PATH_NOT_FOUND); |
| return Response.status(OK).entity(result.toString()).build(); |
| } catch (IOException e) { |
| log.error("Update path failed because of exception {}.", e.toString()); |
| throw new IllegalArgumentException(e); |
| } |
| } |
| |
| /** |
| * Release a specified path. |
| * |
| * @param id path id |
| * @return 200 OK, 404 if given identifier does not exist |
| */ |
| @Path("{path_id}") |
| @DELETE |
| public Response releasePath(@PathParam("path_id") String id) { |
| log.debug("Deletes path by identifier {}.", id); |
| |
| Boolean isSuccess = nullIsNotFound(get(PceService.class).releasePath(TunnelId.valueOf(id)), |
| PCE_PATH_NOT_FOUND); |
| if (!isSuccess) { |
| log.debug("Path identifier {} does not exist", id); |
| } |
| |
| return Response.status(OK).entity(isSuccess.toString()).build(); |
| } |
| } |