| /* |
| * Copyright 2015-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.provider.netconf.device.impl; |
| |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| import com.google.common.base.Objects; |
| import com.google.common.base.Preconditions; |
| import com.google.common.collect.ImmutableList; |
| import org.apache.felix.scr.annotations.Activate; |
| import org.apache.felix.scr.annotations.Component; |
| import org.apache.felix.scr.annotations.Deactivate; |
| import org.apache.felix.scr.annotations.Modified; |
| import org.apache.felix.scr.annotations.Property; |
| import org.apache.felix.scr.annotations.Reference; |
| import org.apache.felix.scr.annotations.ReferenceCardinality; |
| import org.onlab.packet.ChassisId; |
| import org.onlab.util.Tools; |
| import org.onosproject.cfg.ComponentConfigService; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.incubator.net.config.basics.ConfigException; |
| import org.onosproject.mastership.MastershipService; |
| import org.onosproject.net.AnnotationKeys; |
| import org.onosproject.net.DefaultAnnotations; |
| import org.onosproject.net.Device; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.MastershipRole; |
| import org.onosproject.net.PortNumber; |
| import org.onosproject.net.SparseAnnotations; |
| import org.onosproject.net.behaviour.PortDiscovery; |
| import org.onosproject.net.config.ConfigFactory; |
| import org.onosproject.net.config.NetworkConfigEvent; |
| import org.onosproject.net.config.NetworkConfigListener; |
| import org.onosproject.net.config.NetworkConfigRegistry; |
| import org.onosproject.net.config.basics.SubjectFactories; |
| import org.onosproject.net.device.DefaultDeviceDescription; |
| import org.onosproject.net.device.DeviceDescription; |
| import org.onosproject.net.device.DeviceDescriptionDiscovery; |
| import org.onosproject.net.device.DeviceEvent; |
| import org.onosproject.net.device.DeviceListener; |
| import org.onosproject.net.device.DeviceProvider; |
| import org.onosproject.net.device.DeviceProviderRegistry; |
| import org.onosproject.net.device.DeviceProviderService; |
| import org.onosproject.net.device.DeviceService; |
| import org.onosproject.net.device.PortStatistics; |
| import org.onosproject.net.device.PortStatisticsDiscovery; |
| import org.onosproject.net.key.DeviceKey; |
| import org.onosproject.net.key.DeviceKeyAdminService; |
| import org.onosproject.net.key.DeviceKeyId; |
| import org.onosproject.net.provider.AbstractProvider; |
| import org.onosproject.net.provider.ProviderId; |
| import org.onosproject.netconf.NetconfController; |
| import org.onosproject.netconf.NetconfDeviceListener; |
| import org.onosproject.netconf.NetconfException; |
| import org.osgi.service.component.ComponentContext; |
| import org.slf4j.Logger; |
| |
| import java.io.IOException; |
| import java.net.Socket; |
| import java.net.URI; |
| import java.net.URISyntaxException; |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.Dictionary; |
| import java.util.List; |
| import java.util.Set; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.ScheduledExecutorService; |
| import java.util.concurrent.ScheduledFuture; |
| import java.util.concurrent.TimeUnit; |
| |
| import static java.util.concurrent.Executors.newScheduledThreadPool; |
| import static org.onlab.util.Tools.groupedThreads; |
| import static org.onosproject.net.config.basics.SubjectFactories.APP_SUBJECT_FACTORY; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Provider which uses an NETCONF controller to detect device. |
| */ |
| @Component(immediate = true) |
| public class NetconfDeviceProvider extends AbstractProvider |
| implements DeviceProvider { |
| |
| private final Logger log = getLogger(getClass()); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected DeviceProviderRegistry providerRegistry; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected NetconfController controller; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected NetworkConfigRegistry cfgService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected DeviceService deviceService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected DeviceKeyAdminService deviceKeyAdminService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected MastershipService mastershipService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected ComponentConfigService componentConfigService; |
| |
| |
| protected static final String APP_NAME = "org.onosproject.netconf"; |
| protected static final String SCHEME_NAME = "netconf"; |
| private static final String DEVICE_PROVIDER_PACKAGE = "org.onosproject.netconf.provider.device"; |
| private static final String UNKNOWN = "unknown"; |
| protected static final String ISNULL = "NetconfDeviceInfo is null"; |
| private static final String IPADDRESS = "ipaddress"; |
| private static final String NETCONF = "netconf"; |
| private static final String PORT = "port"; |
| private static final int CORE_POOL_SIZE = 10; |
| |
| private static final int DEFAULT_POLL_FREQUENCY_SECONDS = 30; |
| @Property(name = "pollFrequency", intValue = DEFAULT_POLL_FREQUENCY_SECONDS, |
| label = "Configure poll frequency for port status and statistics; " + |
| "default is 30 sec") |
| private int pollFrequency = DEFAULT_POLL_FREQUENCY_SECONDS; |
| |
| protected final ExecutorService executor = |
| Executors.newFixedThreadPool(5, groupedThreads("onos/netconfdeviceprovider", |
| "device-installer-%d", log)); |
| protected ScheduledExecutorService connectionExecutor |
| = newScheduledThreadPool(CORE_POOL_SIZE, |
| groupedThreads("onos/netconfdeviceprovider", |
| "connection-executor-%d", log)); |
| |
| protected DeviceProviderService providerService; |
| private NetconfDeviceListener innerNodeListener = new InnerNetconfDeviceListener(); |
| private InternalDeviceListener deviceListener = new InternalDeviceListener(); |
| protected ScheduledFuture<?> scheduledTask; |
| |
| protected final List<ConfigFactory> factories = ImmutableList.of( |
| new ConfigFactory<DeviceId, NetconfDeviceConfig>( |
| SubjectFactories.DEVICE_SUBJECT_FACTORY, |
| NetconfDeviceConfig.class, SCHEME_NAME) { |
| @Override |
| public NetconfDeviceConfig createConfig() { |
| return new NetconfDeviceConfig(); |
| } |
| }, |
| new ConfigFactory<ApplicationId, NetconfProviderConfig>(APP_SUBJECT_FACTORY, |
| NetconfProviderConfig.class, |
| "devices", |
| true) { |
| @Override |
| public NetconfProviderConfig createConfig() { |
| return new NetconfProviderConfig(); |
| } |
| }); |
| |
| protected final NetworkConfigListener cfgListener = new InternalNetworkConfigListener(); |
| private ApplicationId appId; |
| private boolean active; |
| |
| |
| @Activate |
| public void activate(ComponentContext context) { |
| active = true; |
| componentConfigService.registerProperties(getClass()); |
| providerService = providerRegistry.register(this); |
| appId = coreService.registerApplication(APP_NAME); |
| factories.forEach(cfgService::registerConfigFactory); |
| cfgService.addListener(cfgListener); |
| controller.addDeviceListener(innerNodeListener); |
| deviceService.addListener(deviceListener); |
| translateConfig(); |
| executor.execute(NetconfDeviceProvider.this::connectDevices); |
| modified(context); |
| log.info("Started"); |
| } |
| |
| |
| @Deactivate |
| public void deactivate() { |
| componentConfigService.unregisterProperties(getClass(), false); |
| deviceService.removeListener(deviceListener); |
| active = false; |
| controller.getNetconfDevices().forEach(id -> { |
| deviceKeyAdminService.removeKey(DeviceKeyId.deviceKeyId(id.toString())); |
| controller.disconnectDevice(id, true); |
| }); |
| controller.removeDeviceListener(innerNodeListener); |
| deviceService.removeListener(deviceListener); |
| providerRegistry.unregister(this); |
| providerService = null; |
| factories.forEach(cfgService::unregisterConfigFactory); |
| scheduledTask.cancel(true); |
| executor.shutdown(); |
| log.info("Stopped"); |
| } |
| |
| |
| @Modified |
| public void modified(ComponentContext context) { |
| if (context != null) { |
| Dictionary<?, ?> properties = context.getProperties(); |
| pollFrequency = Tools.getIntegerProperty(properties, "pollFrequency", |
| DEFAULT_POLL_FREQUENCY_SECONDS); |
| log.info("Configured. Poll frequency is configured to {} seconds", pollFrequency); |
| } |
| if (scheduledTask != null) { |
| scheduledTask.cancel(false); |
| } |
| scheduledTask = schedulePolling(); |
| } |
| |
| public NetconfDeviceProvider() { |
| super(new ProviderId(SCHEME_NAME, DEVICE_PROVIDER_PACKAGE)); |
| } |
| |
| // Checks connection to devices in the config file |
| // every DEFAULT_POLL_FREQUENCY_SECONDS seconds. |
| private ScheduledFuture schedulePolling() { |
| return connectionExecutor.scheduleAtFixedRate(exceptionSafe(this::checkAndUpdateDevices), |
| pollFrequency / 10, |
| pollFrequency, TimeUnit.SECONDS); |
| } |
| |
| private Runnable exceptionSafe(Runnable runnable) { |
| return new Runnable() { |
| |
| @Override |
| public void run() { |
| try { |
| runnable.run(); |
| } catch (Exception e) { |
| log.error("Unhandled Exception", e); |
| } |
| } |
| }; |
| } |
| |
| @Override |
| public void triggerProbe(DeviceId deviceId) { |
| // TODO: This will be implemented later. |
| log.debug("Should be triggering probe on device {}", deviceId); |
| } |
| |
| @Override |
| public void roleChanged(DeviceId deviceId, MastershipRole newRole) { |
| if (active) { |
| switch (newRole) { |
| case MASTER: |
| initiateConnection(deviceId, newRole); |
| log.debug("Accepting mastership role change to {} for device {}", newRole, deviceId); |
| break; |
| case STANDBY: |
| controller.disconnectDevice(deviceId, false); |
| providerService.receivedRoleReply(deviceId, newRole, MastershipRole.STANDBY); |
| //else no-op |
| break; |
| case NONE: |
| controller.disconnectDevice(deviceId, false); |
| providerService.receivedRoleReply(deviceId, newRole, MastershipRole.NONE); |
| break; |
| default: |
| log.error("Unimplemented Mastership state : {}", newRole); |
| |
| } |
| } |
| } |
| |
| @Override |
| public boolean isReachable(DeviceId deviceId) { |
| //FIXME this is a workaround util device state is shared |
| // between controller instances. |
| Device device = deviceService.getDevice(deviceId); |
| String ip; |
| int port; |
| if (device != null) { |
| ip = device.annotations().value(IPADDRESS); |
| port = Integer.parseInt(device.annotations().value(PORT)); |
| } else { |
| String[] info = deviceId.toString().split(":"); |
| if (info.length == 3) { |
| ip = info[1]; |
| port = Integer.parseInt(info[2]); |
| } else { |
| ip = Arrays.asList(info).stream().filter(el -> !el.equals(info[0]) |
| && !el.equals(info[info.length - 1])) |
| .reduce((t, u) -> t + ":" + u) |
| .get(); |
| log.debug("ip v6 {}", ip); |
| port = Integer.parseInt(info[info.length - 1]); |
| } |
| } |
| //test connection to device opening a socket to it. |
| try (Socket socket = new Socket(ip, port)) { |
| log.debug("rechability of {}, {}, {}", deviceId, socket.isConnected(), !socket.isClosed()); |
| return socket.isConnected() && !socket.isClosed(); |
| } catch (IOException e) { |
| log.info("Device {} is not reachable", deviceId); |
| return false; |
| } |
| } |
| |
| @Override |
| public void changePortState(DeviceId deviceId, PortNumber portNumber, |
| boolean enable) { |
| // TODO if required |
| } |
| |
| private class InnerNetconfDeviceListener implements NetconfDeviceListener { |
| |
| |
| @Override |
| public void deviceAdded(DeviceId deviceId) { |
| //no-op |
| log.debug("Netconf device {} added to Netconf subController", deviceId); |
| } |
| |
| @Override |
| public void deviceRemoved(DeviceId deviceId) { |
| Preconditions.checkNotNull(deviceId, ISNULL); |
| |
| if (deviceService.getDevice(deviceId) != null) { |
| providerService.deviceDisconnected(deviceId); |
| log.debug("Netconf device {} removed from Netconf subController", deviceId); |
| } else { |
| log.warn("Netconf device {} does not exist in the store, " + |
| "it may already have been removed", deviceId); |
| } |
| } |
| } |
| |
| private void connectDevices() { |
| Set<DeviceId> deviceSubjects = |
| cfgService.getSubjects(DeviceId.class, NetconfDeviceConfig.class); |
| deviceSubjects.forEach(deviceId -> { |
| NetconfDeviceConfig config = |
| cfgService.getConfig(deviceId, NetconfDeviceConfig.class); |
| DeviceDescription deviceDescription = createDeviceRepresentation(deviceId, config); |
| log.debug("Connecting NETCONF device {}, on {}:{} with username {}", |
| deviceId, config.ip(), config.port(), config.username()); |
| storeDeviceKey(config.sshKey(), config.username(), config.password(), deviceId); |
| if (deviceService.getDevice(deviceId) == null) { |
| providerService.deviceConnected(deviceId, deviceDescription); |
| } |
| try { |
| checkAndUpdateDevice(deviceId, deviceDescription); |
| } catch (Exception e) { |
| log.error("Unhandled exception checking {}", deviceId, e); |
| } |
| }); |
| } |
| |
| private void checkAndUpdateDevice(DeviceId deviceId, DeviceDescription deviceDescription) { |
| Device device = deviceService.getDevice(deviceId); |
| if (device == null) { |
| log.debug("Device {} has not been added to store, " + |
| "since it's not reachable", deviceId); |
| } else { |
| boolean isReachable = isReachable(deviceId); |
| if (isReachable && !deviceService.isAvailable(deviceId)) { |
| if (device.is(DeviceDescriptionDiscovery.class)) { |
| if (mastershipService.isLocalMaster(deviceId)) { |
| DeviceDescriptionDiscovery deviceDescriptionDiscovery = |
| device.as(DeviceDescriptionDiscovery.class); |
| DeviceDescription updatedDeviceDescription = |
| deviceDescriptionDiscovery.discoverDeviceDetails(); |
| if (updatedDeviceDescription != null && |
| !descriptionEquals(device, updatedDeviceDescription)) { |
| providerService.deviceConnected( |
| deviceId, new DefaultDeviceDescription( |
| updatedDeviceDescription, true, |
| updatedDeviceDescription.annotations())); |
| } else if (updatedDeviceDescription == null) { |
| providerService.deviceConnected( |
| deviceId, new DefaultDeviceDescription( |
| deviceDescription, true, |
| deviceDescription.annotations())); |
| } |
| //if ports are not discovered, retry the discovery |
| if (deviceService.getPorts(deviceId).isEmpty()) { |
| discoverPorts(deviceId); |
| } |
| } |
| } else { |
| log.warn("No DeviceDescriptionDiscovery behaviour for device {} " + |
| "using DefaultDeviceDescription", deviceId); |
| providerService.deviceConnected( |
| deviceId, new DefaultDeviceDescription( |
| deviceDescription, true, deviceDescription.annotations())); |
| } |
| } else if (!isReachable && deviceService.isAvailable(deviceId)) { |
| providerService.deviceDisconnected(deviceId); |
| } else if (isReachable && deviceService.isAvailable(deviceId) && |
| mastershipService.isLocalMaster(deviceId)) { |
| updatePortStatistics(device); |
| } |
| } |
| } |
| |
| private void updatePortStatistics(Device device) { |
| if (device.is(PortStatisticsDiscovery.class)) { |
| PortStatisticsDiscovery d = device.as(PortStatisticsDiscovery.class); |
| Collection<PortStatistics> portStatistics = d.discoverPortStatistics(); |
| if (portStatistics != null) { |
| providerService.updatePortStatistics(device.id(), |
| portStatistics); |
| } |
| } else { |
| log.debug("No port statistics getter behaviour for device {}", |
| device.id()); |
| } |
| } |
| |
| private boolean descriptionEquals(Device device, DeviceDescription updatedDeviceDescription) { |
| return Objects.equal(device.id().uri(), updatedDeviceDescription.deviceUri()) |
| && Objects.equal(device.type(), updatedDeviceDescription.type()) |
| && Objects.equal(device.manufacturer(), updatedDeviceDescription.manufacturer()) |
| && Objects.equal(device.hwVersion(), updatedDeviceDescription.hwVersion()) |
| && Objects.equal(device.swVersion(), updatedDeviceDescription.swVersion()) |
| && Objects.equal(device.serialNumber(), updatedDeviceDescription.serialNumber()) |
| && Objects.equal(device.chassisId(), updatedDeviceDescription.chassisId()) |
| && Objects.equal(device.annotations(), updatedDeviceDescription.annotations()); |
| } |
| |
| private void checkAndUpdateDevices() { |
| Set<DeviceId> deviceSubjects = |
| cfgService.getSubjects(DeviceId.class, NetconfDeviceConfig.class); |
| deviceSubjects.forEach(deviceId -> { |
| NetconfDeviceConfig config = |
| cfgService.getConfig(deviceId, NetconfDeviceConfig.class); |
| DeviceDescription deviceDescription = createDeviceRepresentation(deviceId, config); |
| storeDeviceKey(config.sshKey(), config.username(), config.password(), deviceId); |
| checkAndUpdateDevice(deviceId, deviceDescription); |
| }); |
| } |
| |
| private DeviceDescription createDeviceRepresentation(DeviceId deviceId, NetconfDeviceConfig config) { |
| Preconditions.checkNotNull(deviceId, ISNULL); |
| //Netconf configuration object |
| ChassisId cid = new ChassisId(); |
| String ipAddress = config.ip().toString(); |
| SparseAnnotations annotations = DefaultAnnotations.builder() |
| .set(IPADDRESS, ipAddress) |
| .set(PORT, String.valueOf(config.port())) |
| .set(AnnotationKeys.PROTOCOL, SCHEME_NAME.toUpperCase()) |
| .build(); |
| return new DefaultDeviceDescription( |
| deviceId.uri(), |
| Device.Type.SWITCH, |
| UNKNOWN, UNKNOWN, |
| UNKNOWN, UNKNOWN, |
| cid, false, |
| annotations); |
| } |
| |
| private void storeDeviceKey(String sshKey, String username, String password, DeviceId deviceId) { |
| if (sshKey.equals("")) { |
| deviceKeyAdminService.addKey( |
| DeviceKey.createDeviceKeyUsingUsernamePassword( |
| DeviceKeyId.deviceKeyId(deviceId.toString()), |
| null, username, password)); |
| } else { |
| deviceKeyAdminService.addKey( |
| DeviceKey.createDeviceKeyUsingSshKey( |
| DeviceKeyId.deviceKeyId(deviceId.toString()), |
| null, username, password, |
| sshKey)); |
| } |
| } |
| |
| private void initiateConnection(DeviceId deviceId, MastershipRole newRole) { |
| try { |
| if (isReachable(deviceId)) { |
| controller.connectDevice(deviceId); |
| providerService.receivedRoleReply(deviceId, newRole, MastershipRole.MASTER); |
| } |
| } catch (Exception e) { |
| if (deviceService.getDevice(deviceId) != null) { |
| providerService.deviceDisconnected(deviceId); |
| } |
| deviceKeyAdminService.removeKey(DeviceKeyId.deviceKeyId(deviceId.toString())); |
| throw new RuntimeException(new NetconfException( |
| "Can't connect to NETCONF device " + deviceId, e)); |
| |
| } |
| } |
| |
| private void discoverPorts(DeviceId deviceId) { |
| Device device = deviceService.getDevice(deviceId); |
| //TODO remove when PortDiscovery is removed from master |
| if (device.is(PortDiscovery.class)) { |
| PortDiscovery portConfig = device.as(PortDiscovery.class); |
| providerService.updatePorts(deviceId, |
| portConfig.getPorts()); |
| } else if (device.is(DeviceDescriptionDiscovery.class)) { |
| DeviceDescriptionDiscovery deviceDescriptionDiscovery = |
| device.as(DeviceDescriptionDiscovery.class); |
| providerService.updatePorts(deviceId, |
| deviceDescriptionDiscovery.discoverPortDetails()); |
| } else { |
| log.warn("No portGetter behaviour for device {}", deviceId); |
| } |
| |
| // Port statistics discovery |
| updatePortStatistics(device); |
| } |
| |
| /** |
| * Return the DeviceId about the device containing the URI. |
| * |
| * @param ip IP address |
| * @param port port number |
| * @return DeviceId |
| */ |
| public DeviceId getDeviceId(String ip, int port) { |
| try { |
| return DeviceId.deviceId(new URI(NETCONF, ip + ":" + port, null)); |
| } catch (URISyntaxException e) { |
| throw new IllegalArgumentException("Unable to build deviceID for device " |
| + ip + ":" + port, e); |
| } |
| } |
| |
| |
| protected void translateConfig() { |
| NetconfProviderConfig cfg = cfgService.getConfig(appId, NetconfProviderConfig.class); |
| if (cfg != null) { |
| try { |
| cfg.getDevicesAddresses().forEach(addr -> { |
| DeviceId deviceId = getDeviceId(addr.ip().toString(), addr.port()); |
| log.info("Translating config for device {}", deviceId); |
| if (cfgService.getConfig(deviceId, NetconfDeviceConfig.class) == null) { |
| ObjectMapper mapper = new ObjectMapper(); |
| ObjectNode device = mapper.createObjectNode(); |
| device.put("ip", addr.ip().toString()); |
| device.put("port", addr.port()); |
| device.put("username", addr.name()); |
| device.put("password", addr.password()); |
| device.put("sshkey", addr.sshkey()); |
| cfgService.applyConfig(deviceId, NetconfDeviceConfig.class, device); |
| } else { |
| // This is a corner case where new updated config is |
| // pushed with old /app tree after an initial with the |
| // new device/ tree. Since old method will be deprecated |
| // it's ok to ignore |
| log.warn("Config for device {} already exists, ignoring", deviceId); |
| } |
| |
| }); |
| } catch (ConfigException e) { |
| log.error("Cannot read config error " + e); |
| } |
| } |
| } |
| |
| /** |
| * Listener for configuration events. |
| */ |
| private class InternalNetworkConfigListener implements NetworkConfigListener { |
| |
| |
| @Override |
| public void event(NetworkConfigEvent event) { |
| if (event.configClass().equals(NetconfDeviceConfig.class)) { |
| executor.execute(NetconfDeviceProvider.this::connectDevices); |
| } else { |
| log.warn("Injecting device via this Json is deprecated, " + |
| "please put configuration under devices/ as shown in the wiki"); |
| translateConfig(); |
| } |
| |
| } |
| |
| @Override |
| public boolean isRelevant(NetworkConfigEvent event) { |
| return (event.configClass().equals(NetconfDeviceConfig.class) || |
| event.configClass().equals(NetconfProviderConfig.class)) && |
| (event.type() == NetworkConfigEvent.Type.CONFIG_ADDED || |
| event.type() == NetworkConfigEvent.Type.CONFIG_UPDATED); |
| } |
| } |
| |
| /** |
| * Listener for core device events. |
| */ |
| private class InternalDeviceListener implements DeviceListener { |
| @Override |
| public void event(DeviceEvent event) { |
| if ((event.type() == DeviceEvent.Type.DEVICE_ADDED)) { |
| executor.execute(() -> discoverPorts(event.subject().id())); |
| } else if ((event.type() == DeviceEvent.Type.DEVICE_REMOVED)) { |
| log.debug("removing device {}", event.subject().id()); |
| controller.disconnectDevice(event.subject().id(), true); |
| } |
| } |
| |
| @Override |
| public boolean isRelevant(DeviceEvent event) { |
| if (mastershipService.getMasterFor(event.subject().id()) == null) { |
| return true; |
| } |
| return SCHEME_NAME.toUpperCase() |
| .equals(event.subject().annotations().value(AnnotationKeys.PROTOCOL)) && |
| mastershipService.isLocalMaster(event.subject().id()); |
| } |
| } |
| } |