| /* |
| * Copyright 2019-present Open Networking Foundation |
| * |
| * 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.k8snode.web; |
| |
| import com.fasterxml.jackson.databind.JsonNode; |
| import com.fasterxml.jackson.databind.node.ArrayNode; |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| import com.google.common.collect.Sets; |
| import org.onosproject.k8snode.api.K8sApiConfig; |
| import org.onosproject.k8snode.api.K8sApiConfigAdminService; |
| import org.onosproject.k8snode.api.K8sNode; |
| import org.onosproject.k8snode.api.K8sNodeAdminService; |
| 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.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 java.io.InputStream; |
| import java.util.Set; |
| |
| import static com.fasterxml.jackson.databind.SerializationFeature.INDENT_OUTPUT; |
| import static javax.ws.rs.core.Response.created; |
| import static org.onlab.util.Tools.nullIsIllegal; |
| import static org.onlab.util.Tools.readTreeFromStream; |
| import static org.onosproject.k8snode.util.K8sNodeUtil.endpoint; |
| |
| /** |
| * Handles REST API call of kubernetes node config. |
| */ |
| |
| @Path("configure") |
| public class K8sNodeWebResource extends AbstractWebResource { |
| |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| private static final String MESSAGE_NODE = "Received node %s request"; |
| private static final String NODES = "nodes"; |
| private static final String API_CONFIGS = "apiConfigs"; |
| private static final String CREATE = "CREATE"; |
| private static final String UPDATE = "UPDATE"; |
| private static final String NODE_ID = "NODE_ID"; |
| private static final String REMOVE = "REMOVE"; |
| |
| private static final String HOST_NAME = "hostname"; |
| private static final String ENDPOINT = "endpoint"; |
| private static final String ERROR_MESSAGE = " cannot be null"; |
| |
| private final K8sNodeAdminService nodeAdminService = get(K8sNodeAdminService.class); |
| private final K8sApiConfigAdminService configAdminService = get(K8sApiConfigAdminService.class); |
| |
| @Context |
| private UriInfo uriInfo; |
| |
| /** |
| * Creates a set of kubernetes nodes' config from the JSON input stream. |
| * |
| * @param input kubernetes nodes JSON input stream |
| * @return 201 CREATED if the JSON is correct, 400 BAD_REQUEST if the JSON |
| * is malformed |
| * @onos.rsModel K8sNode |
| */ |
| @POST |
| @Path("node") |
| @Consumes(MediaType.APPLICATION_JSON) |
| @Produces(MediaType.APPLICATION_JSON) |
| public Response createNodes(InputStream input) { |
| log.trace(String.format(MESSAGE_NODE, CREATE)); |
| |
| readNodeConfiguration(input).forEach(node -> { |
| K8sNode existing = nodeAdminService.node(node.hostname()); |
| if (existing == null) { |
| nodeAdminService.createNode(node); |
| } |
| }); |
| |
| UriBuilder locationBuilder = uriInfo.getBaseUriBuilder() |
| .path(NODES) |
| .path(NODE_ID); |
| |
| return created(locationBuilder.build()).build(); |
| } |
| |
| /** |
| * Updates a set of kubernetes nodes' config from the JSON input stream. |
| * |
| * @param input kubernetes nodes JSON input stream |
| * @return 200 OK with the updated kubernetes node's config, 400 BAD_REQUEST |
| * if the JSON is malformed, and 304 NOT_MODIFIED without the updated config |
| * @onos.rsModel K8sNode |
| */ |
| @PUT |
| @Path("node") |
| @Consumes(MediaType.APPLICATION_JSON) |
| @Produces(MediaType.APPLICATION_JSON) |
| public Response updateNodes(InputStream input) { |
| log.trace(String.format(MESSAGE_NODE, UPDATE)); |
| |
| Set<K8sNode> nodes = readNodeConfiguration(input); |
| for (K8sNode node: nodes) { |
| K8sNode existing = nodeAdminService.node(node.hostname()); |
| if (existing == null) { |
| log.warn("There is no node configuration to update : {}", node.hostname()); |
| return Response.notModified().build(); |
| } else if (!existing.equals(node)) { |
| nodeAdminService.updateNode(node); |
| } |
| } |
| |
| return Response.ok().build(); |
| } |
| |
| /** |
| * Removes a set of kubernetes nodes' config from the JSON input stream. |
| * |
| * @param hostname host name contained in kubernetes nodes configuration |
| * @return 204 NO_CONTENT, 400 BAD_REQUEST if the JSON is malformed, and |
| * 304 NOT_MODIFIED without the updated config |
| */ |
| @DELETE |
| @Path("node/{hostname}") |
| @Consumes(MediaType.APPLICATION_JSON) |
| @Produces(MediaType.APPLICATION_JSON) |
| public Response deleteNodes(@PathParam("hostname") String hostname) { |
| log.trace(String.format(MESSAGE_NODE, REMOVE)); |
| |
| K8sNode existing = |
| nodeAdminService.node(nullIsIllegal(hostname, HOST_NAME + ERROR_MESSAGE)); |
| |
| if (existing == null) { |
| log.warn("There is no node configuration to delete : {}", hostname); |
| return Response.notModified().build(); |
| } else { |
| nodeAdminService.removeNode(hostname); |
| } |
| |
| return Response.noContent().build(); |
| } |
| |
| private Set<K8sNode> readNodeConfiguration(InputStream input) { |
| Set<K8sNode> nodeSet = Sets.newHashSet(); |
| try { |
| JsonNode jsonTree = readTreeFromStream(mapper().enable(INDENT_OUTPUT), input); |
| ArrayNode nodes = (ArrayNode) jsonTree.path(NODES); |
| nodes.forEach(node -> { |
| try { |
| ObjectNode objectNode = node.deepCopy(); |
| K8sNode k8sNode = |
| codec(K8sNode.class).decode(objectNode, this); |
| |
| nodeSet.add(k8sNode); |
| } catch (Exception e) { |
| log.error("Exception occurred due to {}", e); |
| throw new IllegalArgumentException(); |
| } |
| }); |
| } catch (Exception e) { |
| throw new IllegalArgumentException(e); |
| } |
| |
| return nodeSet; |
| } |
| |
| /** |
| * Creates a set of kubernetes API config from the JSON input stream. |
| * |
| * @param input kubernetes API configs JSON input stream |
| * @return 201 CREATED if the JSON is correct, 400 BAD_REQUEST if the JSON |
| * is malformed |
| * @onos.rsModel K8sApiConfig |
| */ |
| @POST |
| @Path("api") |
| @Consumes(MediaType.APPLICATION_JSON) |
| @Produces(MediaType.APPLICATION_JSON) |
| public Response createApiConfigs(InputStream input) { |
| log.trace(String.format(MESSAGE_NODE, CREATE)); |
| |
| readApiConfigConfiguration(input).forEach(config -> { |
| K8sApiConfig existing = configAdminService.apiConfig(endpoint(config)); |
| if (existing == null) { |
| configAdminService.createApiConfig(config); |
| } |
| }); |
| |
| UriBuilder locationBuilder = uriInfo.getBaseUriBuilder() |
| .path(API_CONFIGS); |
| |
| return created(locationBuilder.build()).build(); |
| } |
| |
| /** |
| * Updates a set of kubernetes API config from the JSON input stream. |
| * |
| * @param input kubernetes API configs JSON input stream |
| * @return 200 OK with the updated kubernetes API config, 400 BAD_REQUEST |
| * if the JSON is malformed, and 304 NOT_MODIFIED without the updated config |
| * @onos.rsModel K8sApiConfig |
| */ |
| @PUT |
| @Path("api") |
| @Consumes(MediaType.APPLICATION_JSON) |
| @Produces(MediaType.APPLICATION_JSON) |
| public Response updateApiConfigs(InputStream input) { |
| log.trace(String.format(MESSAGE_NODE, UPDATE)); |
| |
| Set<K8sApiConfig> configs = readApiConfigConfiguration(input); |
| for (K8sApiConfig config: configs) { |
| K8sApiConfig existing = configAdminService.apiConfig(endpoint(config)); |
| if (existing == null) { |
| log.warn("There is no API configuration to update : {}", endpoint(config)); |
| return Response.notModified().build(); |
| } else if (!existing.equals(config)) { |
| configAdminService.updateApiConfig(config); |
| } |
| } |
| |
| return Response.ok().build(); |
| } |
| |
| /** |
| * Removes a kubernetes API config. |
| * |
| * @param endpoint kubernetes API endpoint |
| * @return 204 NO_CONTENT, 400 BAD_REQUEST if the JSON is malformed |
| */ |
| @DELETE |
| @Path("api/{endpoint : .+}") |
| @Consumes(MediaType.APPLICATION_JSON) |
| @Produces(MediaType.APPLICATION_JSON) |
| public Response deleteApiConfig(@PathParam("endpoint") String endpoint) { |
| log.trace(String.format(MESSAGE_NODE, REMOVE)); |
| |
| K8sApiConfig existing = |
| configAdminService.apiConfig(nullIsIllegal(endpoint, ENDPOINT + ERROR_MESSAGE)); |
| |
| if (existing == null) { |
| log.warn("There is no API configuration to delete : {}", endpoint); |
| return Response.notModified().build(); |
| } else { |
| configAdminService.removeApiConfig(endpoint); |
| } |
| |
| return Response.noContent().build(); |
| } |
| |
| private Set<K8sApiConfig> readApiConfigConfiguration(InputStream input) { |
| Set<K8sApiConfig> configSet = Sets.newHashSet(); |
| try { |
| JsonNode jsonTree = readTreeFromStream(mapper().enable(INDENT_OUTPUT), input); |
| ArrayNode configs = (ArrayNode) jsonTree.path(API_CONFIGS); |
| configs.forEach(config -> { |
| try { |
| ObjectNode objectNode = config.deepCopy(); |
| K8sApiConfig k8sApiConfig = |
| codec(K8sApiConfig.class).decode(objectNode, this); |
| |
| configSet.add(k8sApiConfig); |
| } catch (Exception e) { |
| log.error("Exception occurred due to {}", e); |
| throw new IllegalArgumentException(); |
| } |
| }); |
| } catch (Exception e) { |
| throw new IllegalArgumentException(e); |
| } |
| |
| return configSet; |
| } |
| } |