| /* |
| * 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.drivers.dellrest; |
| |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.behaviour.ControllerConfig; |
| import org.onosproject.net.behaviour.ControllerInfo; |
| import org.onosproject.net.driver.AbstractHandlerBehaviour; |
| import org.onosproject.net.driver.DriverHandler; |
| import org.onosproject.protocol.rest.RestSBController; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import javax.ws.rs.core.MediaType; |
| import java.io.InputStream; |
| import java.io.StringBufferInputStream; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| public class DellRestOpenFlowControllerConfig extends AbstractHandlerBehaviour |
| implements ControllerConfig { |
| |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| private static final String TCP = "tcp"; |
| private static final String CLI_REQUEST = "/running/dell/_operations/cli"; |
| private static final String SET_CONTROLLERS_XML = "<input>" + |
| "<config-commands>" + |
| "openflow of-instance 1\\r\\n" + // for now supports only one instance |
| "shutdown\\r\\n" + |
| "%s" + |
| "of-version 1.3\\r\\n" + |
| "no shutdown" + // TODO: check previous state |
| "</config-commands>" + |
| "</input>"; |
| private static final String SET_CONTROLLER = "controller %d %s port %d tcp\\r\\n"; |
| private static final String NO_CONTROLLER = "no controller %d\\r\\n"; |
| private static final int MAX_CONTROLLERS = 2; |
| |
| @Override |
| public List<ControllerInfo> getControllers() { |
| return new ArrayList<>(); |
| } |
| |
| // Example test with ONOS CLI: |
| // device-setcontrollers rest:10.251.217.143:8008 tcp:1.2.3.4:2222 |
| |
| // TODO: assumes that of-instance 1 was in "no shutdown" state, |
| // check previous state |
| @Override |
| public void setControllers(List<ControllerInfo> controllers) { |
| |
| // Dell supports max 2 controllers per of-instance |
| if (controllers.size() > MAX_CONTROLLERS) { |
| log.warn("Cannot set more than 2 controllers."); |
| } |
| |
| DriverHandler handler = handler(); |
| RestSBController controller = checkNotNull(handler.get(RestSBController.class)); |
| DeviceId deviceId = handler.data().deviceId(); |
| |
| String controllerCommands = getControllerCommands(controllers).stream() |
| .reduce(String::concat) |
| .orElse(""); |
| |
| InputStream payload = new StringBufferInputStream(String.format(SET_CONTROLLERS_XML, controllerCommands)); |
| String resp = controller.post(deviceId, CLI_REQUEST, payload, MediaType.valueOf("*/*"), String.class); |
| log.info("{}", resp); |
| } |
| |
| // Get controller commands for maximum first 2 controllers |
| private List<String> getControllerCommands(List<ControllerInfo> controllers) { |
| List<String> controllerCommands = new ArrayList<>(); |
| |
| for (int controllerNum = 0; controllerNum < MAX_CONTROLLERS; ++controllerNum) { |
| if (controllers.size() > controllerNum) { |
| ControllerInfo controllerInfo = controllers.get(controllerNum); |
| // Only "tcp" type is supported |
| if (controllerInfo.type().equals(TCP)) { |
| String ip = controllerInfo.ip().toString(); |
| int port = controllerInfo.port(); |
| controllerCommands.add(String.format(SET_CONTROLLER, controllerNum + 1, ip, port)); |
| } else { |
| log.warn("Controller type can only be 'tcp'"); |
| controllerCommands.add(String.format(NO_CONTROLLER, controllerNum + 1)); |
| } |
| } else { |
| // remove existing controller |
| controllerCommands.add(String.format(NO_CONTROLLER, controllerNum + 1)); |
| } |
| } |
| |
| return controllerCommands; |
| } |
| } |