| /* |
| * 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.provider.bgp.topology.impl; |
| |
| import static org.onosproject.bgp.controller.BgpDpid.uri; |
| import static org.onosproject.net.DeviceId.deviceId; |
| |
| import org.onlab.packet.ChassisId; |
| 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.Reference; |
| import org.apache.felix.scr.annotations.ReferenceCardinality; |
| import org.onosproject.bgp.controller.BgpController; |
| import org.onosproject.bgp.controller.BgpDpid; |
| import org.onosproject.bgp.controller.BgpNodeListener; |
| import org.onosproject.bgpio.protocol.linkstate.BgpNodeLSNlriVer4; |
| import org.onosproject.net.Device; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.MastershipRole; |
| import org.onosproject.net.device.DefaultDeviceDescription; |
| import org.onosproject.net.device.DeviceDescription; |
| import org.onosproject.net.device.DeviceProvider; |
| import org.onosproject.net.device.DeviceProviderRegistry; |
| import org.onosproject.net.device.DeviceProviderService; |
| import org.onosproject.net.provider.AbstractProvider; |
| import org.onosproject.net.provider.ProviderId; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Provider which uses an BGP controller to detect network infrastructure topology. |
| */ |
| @Component(immediate = true) |
| public class BgpTopologyProvider extends AbstractProvider implements DeviceProvider { |
| |
| public BgpTopologyProvider() { |
| super(new ProviderId("bgp", "org.onosproject.provider.bgp")); |
| } |
| |
| private static final Logger log = LoggerFactory.getLogger(BgpTopologyProvider.class); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected DeviceProviderRegistry deviceProviderRegistry; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected BgpController controller; |
| |
| private DeviceProviderService deviceProviderService; |
| |
| private InternalBgpProvider listener = new InternalBgpProvider(); |
| private static final String UNKNOWN = "unknown"; |
| |
| @Activate |
| public void activate() { |
| deviceProviderService = deviceProviderRegistry.register(this); |
| controller.addListener(listener); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| controller.removeListener(listener); |
| } |
| |
| /* |
| * Implements device and link update. |
| */ |
| private class InternalBgpProvider implements BgpNodeListener { |
| |
| @Override |
| public void addNode(BgpNodeLSNlriVer4 nodeNlri) { |
| log.debug("Add node {}", nodeNlri.toString()); |
| |
| if (deviceProviderService == null) { |
| return; |
| } |
| BgpDpid nodeUri = new BgpDpid(nodeNlri); |
| DeviceId deviceId = deviceId(uri(nodeUri.toString())); |
| ChassisId cId = new ChassisId(); |
| |
| DeviceDescription description = new DefaultDeviceDescription(uri(nodeUri.toString()), Device.Type.ROUTER, |
| UNKNOWN, UNKNOWN, UNKNOWN, UNKNOWN, cId); |
| deviceProviderService.deviceConnected(deviceId, description); |
| |
| } |
| |
| @Override |
| public void deleteNode(BgpNodeLSNlriVer4 nodeNlri) { |
| log.debug("Delete node {}", nodeNlri.toString()); |
| |
| if (deviceProviderService == null) { |
| return; |
| } |
| |
| BgpDpid nodeUri = new BgpDpid(nodeNlri); |
| deviceProviderService.deviceDisconnected(deviceId(uri(nodeUri.toString()))); |
| } |
| } |
| |
| @Override |
| public void triggerProbe(DeviceId deviceId) { |
| // TODO Auto-generated method stub |
| } |
| |
| @Override |
| public void roleChanged(DeviceId deviceId, MastershipRole newRole) { |
| } |
| |
| @Override |
| public boolean isReachable(DeviceId deviceId) { |
| // TODO Auto-generated method stub |
| return true; |
| } |
| } |