HelloONOS | 137e1fb | 2019-08-20 16:43:52 +0900 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2019-present Open Networking Foundation |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package org.onosproject.drivers.dellrest; |
| 18 | |
| 19 | import org.onosproject.net.DeviceId; |
| 20 | import org.onosproject.net.behaviour.ControllerConfig; |
| 21 | import org.onosproject.net.behaviour.ControllerInfo; |
| 22 | import org.onosproject.net.driver.AbstractHandlerBehaviour; |
| 23 | import org.onosproject.net.driver.DriverHandler; |
| 24 | import org.onosproject.protocol.rest.RestSBController; |
| 25 | import org.slf4j.Logger; |
| 26 | import org.slf4j.LoggerFactory; |
| 27 | |
| 28 | import javax.ws.rs.core.MediaType; |
| 29 | import java.io.InputStream; |
| 30 | import java.io.StringBufferInputStream; |
| 31 | import java.util.ArrayList; |
| 32 | import java.util.List; |
| 33 | |
| 34 | import static com.google.common.base.Preconditions.checkNotNull; |
| 35 | |
| 36 | public class DellRestOpenFlowControllerConfig extends AbstractHandlerBehaviour |
| 37 | implements ControllerConfig { |
| 38 | |
| 39 | private final Logger log = LoggerFactory.getLogger(getClass()); |
| 40 | |
| 41 | private static final String TCP = "tcp"; |
| 42 | private static final String CLI_REQUEST = "/running/dell/_operations/cli"; |
| 43 | private static final String SET_CONTROLLERS_XML = "<input>" + |
| 44 | "<config-commands>" + |
| 45 | "openflow of-instance 1\\r\\n" + // for now supports only one instance |
| 46 | "shutdown\\r\\n" + |
| 47 | "%s" + |
| 48 | "of-version 1.3\\r\\n" + |
| 49 | "no shutdown" + // TODO: check previous state |
| 50 | "</config-commands>" + |
| 51 | "</input>"; |
| 52 | private static final String SET_CONTROLLER = "controller %d %s port %d tcp\\r\\n"; |
| 53 | private static final String NO_CONTROLLER = "no controller %d\\r\\n"; |
| 54 | private static final int MAX_CONTROLLERS = 2; |
| 55 | |
| 56 | @Override |
| 57 | public List<ControllerInfo> getControllers() { |
| 58 | return new ArrayList<>(); |
| 59 | } |
| 60 | |
| 61 | // Example test with ONOS CLI: |
| 62 | // device-setcontrollers rest:10.251.217.143:8008 tcp:1.2.3.4:2222 |
| 63 | |
| 64 | // TODO: assumes that of-instance 1 was in "no shutdown" state, |
| 65 | // check previous state |
| 66 | @Override |
| 67 | public void setControllers(List<ControllerInfo> controllers) { |
| 68 | |
| 69 | // Dell supports max 2 controllers per of-instance |
| 70 | if (controllers.size() > MAX_CONTROLLERS) { |
| 71 | log.warn("Cannot set more than 2 controllers."); |
| 72 | } |
| 73 | |
| 74 | DriverHandler handler = handler(); |
| 75 | RestSBController controller = checkNotNull(handler.get(RestSBController.class)); |
| 76 | DeviceId deviceId = handler.data().deviceId(); |
| 77 | |
| 78 | String controllerCommands = getControllerCommands(controllers).stream() |
| 79 | .reduce(String::concat) |
| 80 | .orElse(""); |
| 81 | |
| 82 | InputStream payload = new StringBufferInputStream(String.format(SET_CONTROLLERS_XML, controllerCommands)); |
| 83 | String resp = controller.post(deviceId, CLI_REQUEST, payload, MediaType.valueOf("*/*"), String.class); |
| 84 | log.info("{}", resp); |
| 85 | } |
| 86 | |
| 87 | // Get controller commands for maximum first 2 controllers |
| 88 | private List<String> getControllerCommands(List<ControllerInfo> controllers) { |
| 89 | List<String> controllerCommands = new ArrayList<>(); |
| 90 | |
| 91 | for (int controllerNum = 0; controllerNum < MAX_CONTROLLERS; ++controllerNum) { |
| 92 | if (controllers.size() > controllerNum) { |
| 93 | ControllerInfo controllerInfo = controllers.get(controllerNum); |
| 94 | // Only "tcp" type is supported |
| 95 | if (controllerInfo.type().equals(TCP)) { |
| 96 | String ip = controllerInfo.ip().toString(); |
| 97 | int port = controllerInfo.port(); |
| 98 | controllerCommands.add(String.format(SET_CONTROLLER, controllerNum + 1, ip, port)); |
| 99 | } else { |
| 100 | log.warn("Controller type can only be 'tcp'"); |
| 101 | controllerCommands.add(String.format(NO_CONTROLLER, controllerNum + 1)); |
| 102 | } |
| 103 | } else { |
| 104 | // remove existing controller |
| 105 | controllerCommands.add(String.format(NO_CONTROLLER, controllerNum + 1)); |
| 106 | } |
| 107 | } |
| 108 | |
| 109 | return controllerCommands; |
| 110 | } |
| 111 | } |