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/*
* 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;
}
}
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