| /* |
| * Copyright 2015 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.driver.netconf; |
| |
| import org.apache.commons.configuration.ConfigurationException; |
| import org.apache.commons.configuration.HierarchicalConfiguration; |
| import org.apache.commons.configuration.XMLConfiguration; |
| import org.apache.commons.configuration.tree.ConfigurationNode; |
| import org.onlab.packet.IpAddress; |
| import org.onosproject.net.behaviour.ControllerInfo; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.InputStream; |
| import java.io.StringWriter; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Parser for Netconf XML configurations and replys. |
| */ |
| final class XmlConfigParser { |
| public static final Logger log = LoggerFactory |
| .getLogger(XmlConfigParser.class); |
| |
| private XmlConfigParser() { |
| //not called, preventing any allocation |
| } |
| |
| |
| protected static HierarchicalConfiguration loadXml(InputStream xmlStream) { |
| XMLConfiguration cfg = new XMLConfiguration(); |
| try { |
| cfg.load(xmlStream); |
| return cfg; |
| } catch (ConfigurationException e) { |
| throw new IllegalArgumentException("Cannot load xml from Stream", e); |
| } |
| } |
| |
| protected static List<ControllerInfo> parseStreamControllers(HierarchicalConfiguration cfg) { |
| List<ControllerInfo> controllers = new ArrayList<>(); |
| List<HierarchicalConfiguration> fields = |
| cfg.configurationsAt("data.capable-switch." + |
| "logical-switches." + |
| "switch.controllers.controller"); |
| for (HierarchicalConfiguration sub : fields) { |
| controllers.add(new ControllerInfo( |
| IpAddress.valueOf(sub.getString("ip-address")), |
| Integer.parseInt(sub.getString("port")), |
| sub.getString("protocol"))); |
| } |
| return controllers; |
| } |
| |
| protected static String parseSwitchId(HierarchicalConfiguration cfg) { |
| HierarchicalConfiguration field = |
| cfg.configurationAt("data.capable-switch." + |
| "logical-switches." + |
| "switch"); |
| return field.getProperty("id").toString(); |
| } |
| |
| protected static String parseCapableSwitchId(HierarchicalConfiguration cfg) { |
| HierarchicalConfiguration field = |
| cfg.configurationAt("data.capable-switch"); |
| return field.getProperty("id").toString(); |
| } |
| |
| protected static String createControllersConfig(HierarchicalConfiguration cfg, |
| HierarchicalConfiguration actualCfg, |
| String target, String netconfOperation, |
| String controllerOperation, |
| List<ControllerInfo> controllers) { |
| //cfg.getKeys().forEachRemaining(key -> System.out.println(key)); |
| cfg.setProperty("edit-config.target", target); |
| cfg.setProperty("edit-config.default-operation", netconfOperation); |
| cfg.setProperty("edit-config.config.capable-switch.id", |
| parseCapableSwitchId(actualCfg)); |
| cfg.setProperty("edit-config.config.capable-switch." + |
| "logical-switches.switch.id", parseSwitchId(actualCfg)); |
| List<ConfigurationNode> newControllers = new ArrayList<>(); |
| for (ControllerInfo ci : controllers) { |
| XMLConfiguration controller = new XMLConfiguration(); |
| controller.setRoot(new HierarchicalConfiguration.Node("controller")); |
| String id = ci.type() + ":" + ci.ip() + ":" + ci.port(); |
| controller.setProperty("id", id); |
| controller.setProperty("ip-address", ci.ip()); |
| controller.setProperty("port", ci.port()); |
| controller.setProperty("protocol", ci.type()); |
| newControllers.add(controller.getRootNode()); |
| } |
| cfg.addNodes("edit-config.config.capable-switch.logical-switches." + |
| "switch.controllers", newControllers); |
| XMLConfiguration editcfg = (XMLConfiguration) cfg; |
| StringWriter stringWriter = new StringWriter(); |
| try { |
| editcfg.save(stringWriter); |
| } catch (ConfigurationException e) { |
| e.printStackTrace(); |
| } |
| String s = stringWriter.toString() |
| .replaceAll("<controller>", |
| "<controller nc:operation=\"" + controllerOperation + "\">"); |
| s = s.replace("<target>" + target + "</target>", |
| "<target><" + target + "/></target>"); |
| return s; |
| |
| } |
| |
| //TODO implement mor methods for parsing configuration when you need them |
| } |