Akihiro Yamanouchi | 5e5d4df | 2016-06-08 17:06:33 +0900 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2016-present Open Networking Laboratory |
| 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.fujitsu; |
| 18 | |
| 19 | import com.google.common.collect.ImmutableList; |
| 20 | import org.apache.commons.configuration.HierarchicalConfiguration; |
| 21 | import org.onosproject.drivers.utilities.XmlConfigParser; |
| 22 | import org.onlab.packet.IpAddress; |
| 23 | import org.onosproject.mastership.MastershipService; |
| 24 | import org.onosproject.net.DeviceId; |
| 25 | import org.onosproject.net.behaviour.ControllerConfig; |
| 26 | import org.onosproject.net.behaviour.ControllerInfo; |
| 27 | import org.onosproject.net.driver.AbstractHandlerBehaviour; |
| 28 | import org.onosproject.net.driver.DriverHandler; |
| 29 | import org.onosproject.netconf.NetconfController; |
| 30 | import org.slf4j.Logger; |
| 31 | |
| 32 | import java.io.ByteArrayInputStream; |
| 33 | import java.io.IOException; |
| 34 | import java.nio.charset.StandardCharsets; |
| 35 | import java.util.ArrayList; |
| 36 | import java.util.List; |
| 37 | |
| 38 | import static com.google.common.base.Preconditions.checkNotNull; |
| 39 | import static org.slf4j.LoggerFactory.getLogger; |
| 40 | |
| 41 | /** |
| 42 | * Implementation to get and set parameters available in VOLT NE |
| 43 | * through the Netconf protocol. |
| 44 | */ |
| 45 | public class FujitsuVoltControllerConfig extends AbstractHandlerBehaviour |
| 46 | implements ControllerConfig { |
| 47 | |
| 48 | private final Logger log = getLogger(FujitsuVoltControllerConfig.class); |
| 49 | |
| 50 | private static final String DOT = "."; |
| 51 | private static final String VOLT_NE_NAMESPACE = |
| 52 | "xmlns=\"http://fujitsu.com/ns/volt/1.1\""; |
| 53 | private static final String DATA = "data"; |
| 54 | private static final String VOLT_NE = "volt-ne"; |
| 55 | private static final String VOLT_OFCONFIG = "volt-ofconfig"; |
| 56 | private static final String OF_CONTROLLERS = "of-controllers"; |
| 57 | private static final String OF_CONTROLLER = "of-controller"; |
| 58 | private static final String CONTROLLER_INFO = "controller-info"; |
| 59 | private static final String REPORT_ALL = "report-all"; |
| 60 | private static final String IP_ADDRESS = "ip-address"; |
| 61 | private static final String PORT = "port"; |
| 62 | private static final String PROTOCOL = "protocol"; |
| 63 | |
| 64 | private static final String VOLT_NE_OPEN = "<" + VOLT_NE + " "; |
| 65 | private static final String VOLT_NE_CLOSE = "</" + VOLT_NE + ">"; |
| 66 | private static final String VOLT_OFCONFIG_EL = "<" + VOLT_OFCONFIG + "/>\n"; |
| 67 | |
| 68 | private static final String VOLT_DATACONFIG = DATA + DOT + VOLT_NE + DOT + |
| 69 | VOLT_OFCONFIG + DOT + OF_CONTROLLERS + DOT + OF_CONTROLLER; |
| 70 | |
| 71 | @Override |
| 72 | public List<ControllerInfo> getControllers() { |
| 73 | DriverHandler handler = handler(); |
| 74 | NetconfController controller = handler.get(NetconfController.class); |
| 75 | MastershipService mastershipService = handler.get(MastershipService.class); |
| 76 | DeviceId ncDeviceId = handler.data().deviceId(); |
| 77 | checkNotNull(controller, "Netconf controller is null"); |
| 78 | List<ControllerInfo> controllers = new ArrayList<>(); |
| 79 | if (mastershipService.isLocalMaster(ncDeviceId)) { |
| 80 | try { |
| 81 | StringBuilder request = new StringBuilder(); |
| 82 | request.append(VOLT_NE_OPEN).append(VOLT_NE_NAMESPACE).append(">\n"); |
| 83 | request.append(VOLT_OFCONFIG_EL); |
| 84 | request.append(VOLT_NE_CLOSE); |
| 85 | |
| 86 | String reply; |
| 87 | reply = controller. |
| 88 | getDevicesMap().get(ncDeviceId).getSession(). |
| 89 | get(request.toString(), REPORT_ALL); |
| 90 | log.debug("Reply XML {}", reply); |
| 91 | controllers.addAll(parseStreamVoltControllers(XmlConfigParser. |
| 92 | loadXml(new ByteArrayInputStream(reply.getBytes(StandardCharsets.UTF_8))))); |
| 93 | } catch (IOException e) { |
| 94 | log.error("Cannot communicate to device {} ", ncDeviceId); |
| 95 | } |
| 96 | } else { |
| 97 | log.warn("I'm not master for {} please use master, {} to execute command", |
| 98 | ncDeviceId, |
| 99 | mastershipService.getMasterFor(ncDeviceId)); |
| 100 | } |
| 101 | return ImmutableList.copyOf(controllers); |
| 102 | } |
| 103 | |
| 104 | @Override |
| 105 | public void setControllers(List<ControllerInfo> controllers) { |
| 106 | // TODO update later |
| 107 | log.warn("Operation not supported"); |
| 108 | } |
| 109 | |
| 110 | /** |
| 111 | * Parses XML string to get controller information. |
| 112 | * |
| 113 | * @param cfg a hierarchical configuration |
| 114 | * @return a list of controllers |
| 115 | */ |
| 116 | private List<ControllerInfo> parseStreamVoltControllers(HierarchicalConfiguration cfg) { |
| 117 | List<ControllerInfo> controllers = new ArrayList<>(); |
| 118 | List<HierarchicalConfiguration> fields = |
| 119 | cfg.configurationsAt(VOLT_DATACONFIG); |
| 120 | |
| 121 | for (HierarchicalConfiguration sub : fields) { |
| 122 | List<HierarchicalConfiguration> childFields = |
| 123 | sub.configurationsAt(CONTROLLER_INFO); |
| 124 | |
| 125 | for (HierarchicalConfiguration child : childFields) { |
| 126 | ControllerInfo controller = new ControllerInfo( |
| 127 | IpAddress.valueOf(child.getString(IP_ADDRESS)), |
| 128 | Integer.parseInt(child.getString(PORT)), |
| 129 | child.getString(PROTOCOL)); |
| 130 | |
| 131 | log.debug("VOLT: OFCONTROLLER: PROTOCOL={}, IP={}, PORT={} ", |
| 132 | controller.type(), controller.ip(), controller.port()); |
| 133 | controllers.add(controller); |
| 134 | } |
| 135 | } |
| 136 | return controllers; |
| 137 | } |
| 138 | |
| 139 | } |