| /* |
| * Copyright 2016-present 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.drivers.bmv2; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.Lists; |
| import org.onlab.osgi.ServiceNotFoundException; |
| import org.onlab.packet.ChassisId; |
| import org.onosproject.bmv2.api.runtime.Bmv2DeviceAgent; |
| import org.onosproject.bmv2.api.runtime.Bmv2RuntimeException; |
| import org.onosproject.bmv2.api.service.Bmv2Controller; |
| import org.onosproject.net.AnnotationKeys; |
| import org.onosproject.net.DefaultAnnotations; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.PortNumber; |
| import org.onosproject.net.device.DefaultDeviceDescription; |
| import org.onosproject.net.device.DefaultPortDescription; |
| import org.onosproject.net.device.DeviceDescription; |
| import org.onosproject.net.device.DeviceDescriptionDiscovery; |
| import org.onosproject.net.device.PortDescription; |
| import org.onosproject.net.driver.AbstractHandlerBehaviour; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.math.BigInteger; |
| import java.util.List; |
| |
| import static org.onosproject.bmv2.api.runtime.Bmv2Device.*; |
| import static org.onosproject.net.Device.Type.SWITCH; |
| |
| /** |
| * Implementation of the device description discovery behaviour for BMv2. |
| */ |
| public class Bmv2DeviceDescriptionDiscovery extends AbstractHandlerBehaviour implements DeviceDescriptionDiscovery { |
| |
| private static final String JSON_CONFIG_MD5 = "bmv2JsonConfigMd5"; |
| private static final String PROCESS_INSTANCE_ID = "bmv2ProcessInstanceId"; |
| |
| private final Logger log = LoggerFactory.getLogger(this.getClass()); |
| |
| private Bmv2Controller controller; |
| |
| private boolean init() { |
| try { |
| controller = handler().get(Bmv2Controller.class); |
| return true; |
| } catch (ServiceNotFoundException e) { |
| log.warn(e.getMessage()); |
| return false; |
| } |
| } |
| |
| @Override |
| public DeviceDescription discoverDeviceDetails() { |
| |
| if (!init()) { |
| return null; |
| } |
| |
| DeviceId deviceId = handler().data().deviceId(); |
| |
| Bmv2DeviceAgent deviceAgent; |
| try { |
| deviceAgent = controller.getAgent(deviceId); |
| } catch (Bmv2RuntimeException e) { |
| log.error("Failed to connect to Bmv2 device", e); |
| return null; |
| } |
| |
| DefaultAnnotations.Builder annotationsBuilder = DefaultAnnotations.builder(); |
| |
| try { |
| String md5 = deviceAgent.getJsonConfigMd5(); |
| BigInteger i = new BigInteger(1, md5.getBytes()); |
| annotationsBuilder.set(JSON_CONFIG_MD5, String.format("%1$032X", i).toLowerCase()); |
| } catch (Bmv2RuntimeException e) { |
| log.warn("Unable to dump JSON configuration from {}: {}", deviceId, e.explain()); |
| } |
| try { |
| int instanceId = deviceAgent.getProcessInstanceId(); |
| annotationsBuilder.set(PROCESS_INSTANCE_ID, String.valueOf(instanceId)); |
| } catch (Bmv2RuntimeException e) { |
| log.warn("Unable to get process instance ID from {}: {}", deviceId, e.explain()); |
| } |
| |
| annotationsBuilder.set(AnnotationKeys.PROTOCOL, PROTOCOL); |
| |
| return new DefaultDeviceDescription(deviceId.uri(), |
| SWITCH, |
| MANUFACTURER, |
| HW_VERSION, |
| SW_VERSION, |
| SERIAL_NUMBER, |
| new ChassisId(), |
| annotationsBuilder.build()); |
| } |
| |
| @Override |
| public List<PortDescription> discoverPortDetails() { |
| |
| if (!init()) { |
| return null; |
| } |
| |
| DeviceId deviceId = handler().data().deviceId(); |
| |
| Bmv2DeviceAgent deviceAgent; |
| try { |
| deviceAgent = controller.getAgent(deviceId); |
| } catch (Bmv2RuntimeException e) { |
| log.error("Failed to connect to Bmv2 device", e); |
| return null; |
| } |
| |
| List<PortDescription> portDescriptions = Lists.newArrayList(); |
| |
| try { |
| deviceAgent.getPortsInfo().forEach(p -> { |
| PortNumber portNumber = PortNumber.portNumber((long) p.number(), p.ifaceName()); |
| portDescriptions.add(new DefaultPortDescription(portNumber, p.isUp(), DefaultAnnotations.EMPTY)); |
| }); |
| } catch (Bmv2RuntimeException e) { |
| log.error("Unable to get port descriptions of {}: {}", deviceId, e); |
| } |
| |
| return ImmutableList.copyOf(portDescriptions); |
| } |
| } |