| /* |
| * Copyright 2020-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.drivers.server; |
| |
| import org.onlab.util.Bandwidth; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.behaviour.DefaultQueueDescription; |
| import org.onosproject.net.behaviour.QueueConfigBehaviour; |
| import org.onosproject.net.behaviour.QueueDescription; |
| import org.onosproject.net.behaviour.QueueDescription.Type; |
| import org.onosproject.net.behaviour.QueueId; |
| import org.onosproject.protocol.rest.RestSBDevice; |
| |
| import org.slf4j.Logger; |
| |
| import com.fasterxml.jackson.databind.JsonNode; |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| import com.google.common.collect.Sets; |
| import com.google.common.collect.ImmutableList; |
| |
| import java.io.InputStream; |
| import java.io.IOException; |
| import java.util.EnumSet; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.Map; |
| import javax.ws.rs.ProcessingException; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static org.onosproject.drivers.server.Constants.JSON; |
| import static org.onosproject.drivers.server.Constants.PARAM_ID; |
| import static org.onosproject.drivers.server.Constants.PARAM_NICS; |
| import static org.onosproject.drivers.server.Constants.PARAM_NIC_MAX_RATE; |
| import static org.onosproject.drivers.server.Constants.PARAM_QUEUES; |
| import static org.onosproject.drivers.server.Constants.PARAM_TYPE; |
| import static org.onosproject.drivers.server.Constants.MSG_DEVICE_NULL; |
| import static org.onosproject.drivers.server.Constants.MSG_DEVICE_ID_NULL; |
| import static org.onosproject.drivers.server.Constants.URL_NIC_QUEUE_ADMIN; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Implementation of queue config behaviour for server devices. |
| */ |
| public class ServerQueueConfig |
| extends BasicServerDriver |
| implements QueueConfigBehaviour { |
| |
| private final Logger log = getLogger(getClass()); |
| |
| public ServerQueueConfig() { |
| super(); |
| log.debug("Started"); |
| } |
| |
| @Override |
| public Collection<QueueDescription> getQueues() { |
| // Retrieve the device ID from the handler |
| DeviceId deviceId = super.getDeviceId(); |
| checkNotNull(deviceId, MSG_DEVICE_ID_NULL); |
| |
| // Get the device |
| RestSBDevice device = super.getDevice(deviceId); |
| checkNotNull(device, MSG_DEVICE_NULL); |
| |
| // Hit the path that provides queue administration |
| InputStream response = null; |
| try { |
| response = getController().get(deviceId, URL_NIC_QUEUE_ADMIN, JSON); |
| } catch (ProcessingException pEx) { |
| log.error("Failed to get NIC queues from device: {}", deviceId); |
| return Collections.EMPTY_LIST; |
| } |
| |
| // Load the JSON into object |
| ObjectMapper mapper = new ObjectMapper(); |
| Map<String, Object> jsonMap = null; |
| JsonNode jsonNode = null; |
| ObjectNode objNode = null; |
| try { |
| jsonMap = mapper.readValue(response, Map.class); |
| jsonNode = mapper.convertValue(jsonMap, JsonNode.class); |
| objNode = (ObjectNode) jsonNode; |
| } catch (IOException ioEx) { |
| log.error("Failed to get NIC queues from device: {}", deviceId); |
| return Collections.EMPTY_LIST; |
| } |
| |
| if (objNode == null) { |
| log.error("Failed to get NIC queues from device: {}", deviceId); |
| return Collections.EMPTY_LIST; |
| } |
| |
| Collection<QueueDescription> queueDescs = Sets.newHashSet(); |
| |
| // Fetch NICs' array |
| JsonNode nicsNode = objNode.path(PARAM_NICS); |
| |
| for (JsonNode nn : nicsNode) { |
| ObjectNode nicObjNode = (ObjectNode) nn; |
| int nicId = nicObjNode.path(PARAM_ID).asInt(); |
| JsonNode queuesNode = nicObjNode.path(PARAM_QUEUES); |
| |
| // Each NIC has a set of queues |
| for (JsonNode qn : queuesNode) { |
| ObjectNode queueObjNode = (ObjectNode) qn; |
| |
| // Get the attributes of a queue |
| int queueIdInt = queueObjNode.path(PARAM_ID).asInt(); |
| String queueTypeStr = get(qn, PARAM_TYPE); |
| long queueRateInt = queueObjNode.path(PARAM_NIC_MAX_RATE).asLong(); |
| |
| QueueId queueId = QueueId.queueId("nic" + nicId + ":" + queueIdInt); |
| EnumSet<Type> queueTypes = getQueueTypesFromString(queueTypeStr); |
| Bandwidth queueRate = Bandwidth.mbps(queueRateInt); |
| |
| queueDescs.add( |
| DefaultQueueDescription.builder() |
| .queueId(queueId) |
| .type(queueTypes) |
| .maxRate(queueRate) |
| .build()); |
| } |
| } |
| |
| log.info("[Device {}] NIC queues: {}", deviceId, queueDescs); |
| |
| return ImmutableList.copyOf(queueDescs); |
| } |
| |
| @Override |
| public QueueDescription getQueue(QueueDescription queueDesc) { |
| for (QueueDescription qDesc : getQueues()) { |
| if (queueDesc.queueId().equals(qDesc.queueId())) { |
| return qDesc; |
| } |
| } |
| |
| return null; |
| } |
| |
| @Override |
| public boolean addQueue(QueueDescription queue) { |
| throw new UnsupportedOperationException("Add queue operation not supported"); |
| } |
| |
| @Override |
| public void deleteQueue(QueueId queueId) { |
| throw new UnsupportedOperationException("Delete queue operation not supported"); |
| } |
| |
| /** |
| * Convert string-based queue type into enum set. |
| * |
| * @param queueTypeStr string-based queue type |
| * @return queue types enum set |
| */ |
| private EnumSet<Type> getQueueTypesFromString(String queueTypeStr) { |
| EnumSet<Type> enumSet = EnumSet.noneOf(Type.class); |
| if ((queueTypeStr == null) || (queueTypeStr.isEmpty())) { |
| return enumSet; |
| } |
| |
| if (queueTypeStr.toUpperCase().equals("MIN")) { |
| enumSet.add(Type.MAX); |
| } else if (queueTypeStr.toUpperCase().equals("MAX")) { |
| enumSet.add(Type.MIN); |
| } else if (queueTypeStr.toUpperCase().equals("PRIORITY")) { |
| enumSet.add(Type.PRIORITY); |
| } else { |
| enumSet.add(Type.BURST); |
| } |
| |
| return enumSet; |
| } |
| |
| } |