2 * Copyright (c) 2016 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
9 package org.opendaylight.protocol.bgp.rib.impl.config;
11 import static org.opendaylight.protocol.bgp.rib.impl.config.OpenConfigMappingUtil.getNeighborInstanceIdentifier;
12 import static org.opendaylight.protocol.bgp.rib.impl.config.OpenConfigMappingUtil.getNeighborInstanceName;
13 import static org.opendaylight.protocol.bgp.rib.impl.config.OpenConfigMappingUtil.getRibInstanceName;
15 import com.google.common.base.Preconditions;
16 import com.google.common.util.concurrent.CheckedFuture;
17 import com.google.common.util.concurrent.FutureCallback;
18 import com.google.common.util.concurrent.Futures;
19 import com.google.common.util.concurrent.ListenableFuture;
20 import java.util.ArrayList;
21 import java.util.Collection;
22 import java.util.Dictionary;
23 import java.util.HashMap;
24 import java.util.Hashtable;
25 import java.util.List;
27 import javax.annotation.concurrent.GuardedBy;
28 import org.opendaylight.controller.md.sal.binding.api.ClusteredDataTreeChangeListener;
29 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
30 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
31 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
32 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
33 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
34 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
35 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
36 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
37 import org.opendaylight.protocol.bgp.openconfig.spi.BGPOpenConfigMappingService;
38 import org.opendaylight.protocol.bgp.rib.impl.spi.BgpDeployer;
39 import org.opendaylight.protocol.bgp.rib.impl.spi.InstanceType;
40 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbors.Neighbor;
41 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.top.Bgp;
42 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.top.bgp.Global;
43 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.top.bgp.Neighbors;
44 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.network.instance.rev151018.network.instance.top.NetworkInstances;
45 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.network.instance.rev151018.network.instance.top.network.instances.NetworkInstance;
46 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.network.instance.rev151018.network.instance.top.network.instances.NetworkInstanceBuilder;
47 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.network.instance.rev151018.network.instance.top.network.instances.NetworkInstanceKey;
48 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.network.instance.rev151018.network.instance.top.network.instances.network.instance.Protocols;
49 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.network.instance.rev151018.network.instance.top.network.instances.network.instance.ProtocolsBuilder;
50 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.network.instance.rev151018.network.instance.top.network.instances.network.instance.protocols.Protocol;
51 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev160614.Protocol1;
52 import org.opendaylight.yangtools.concepts.ListenerRegistration;
53 import org.opendaylight.yangtools.yang.binding.DataObject;
54 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
55 import org.osgi.framework.BundleContext;
56 import org.osgi.framework.ServiceRegistration;
57 import org.osgi.service.blueprint.container.BlueprintContainer;
58 import org.slf4j.Logger;
59 import org.slf4j.LoggerFactory;
61 public final class BgpDeployerImpl implements BgpDeployer, ClusteredDataTreeChangeListener<Bgp>, AutoCloseable {
62 private static final Logger LOG = LoggerFactory.getLogger(BgpDeployerImpl.class);
63 private final InstanceIdentifier<NetworkInstance> networkInstanceIId;
64 private final BlueprintContainer container;
65 private final BundleContext bundleContext;
66 private final BGPOpenConfigMappingService mappingService;
67 private final ListenerRegistration<BgpDeployerImpl> registration;
69 private final Map<InstanceIdentifier<Bgp>, RibImpl> ribs = new HashMap<>();
71 private final Map<InstanceIdentifier<Neighbor>, PeerBean> peers = new HashMap<>();
72 private final DataBroker dataBroker;
74 private boolean closed;
76 public BgpDeployerImpl(final String networkInstanceName, final BlueprintContainer container, final BundleContext bundleContext, final DataBroker dataBroker,
77 final BGPOpenConfigMappingService mappingService) {
78 this.dataBroker = Preconditions.checkNotNull(dataBroker);
79 this.container = Preconditions.checkNotNull(container);
80 this.bundleContext = Preconditions.checkNotNull(bundleContext);
81 this.mappingService = Preconditions.checkNotNull(mappingService);
82 this.networkInstanceIId = InstanceIdentifier.create(NetworkInstances.class)
83 .child(NetworkInstance.class, new NetworkInstanceKey(networkInstanceName));
84 Futures.addCallback(initializeNetworkInstance(dataBroker, this.networkInstanceIId), new FutureCallback<Void>() {
86 public void onSuccess(final Void result) {
87 LOG.debug("Network Instance {} initialized successfully.", networkInstanceName);
91 public void onFailure(final Throwable t) {
92 LOG.error("Failed to initialize Network Instance {}.", networkInstanceName, t);
95 this.registration = dataBroker.registerDataTreeChangeListener(new DataTreeIdentifier<>(LogicalDatastoreType.CONFIGURATION,
96 this.networkInstanceIId.child(Protocols.class).child(Protocol.class).augmentation(Protocol1.class).child(Bgp.class)), this);
97 LOG.info("BGP Deployer {} started.", networkInstanceName);
101 public synchronized void onDataTreeChanged(final Collection<DataTreeModification<Bgp>> changes) {
103 LOG.trace("BGP Deployer was already closed, skipping changes.");
106 for (final DataTreeModification<Bgp> dataTreeModification : changes) {
107 final InstanceIdentifier<Bgp> rootIdentifier = dataTreeModification.getRootPath().getRootIdentifier();
108 final DataObjectModification<Bgp> rootNode = dataTreeModification.getRootNode();
109 LOG.trace("BGP configuration has changed: {}", rootNode);
110 for (final DataObjectModification<? extends DataObject> dataObjectModification : rootNode.getModifiedChildren()) {
111 if (dataObjectModification.getDataType().equals(Global.class)) {
112 onGlobalChanged((DataObjectModification<Global>) dataObjectModification, rootIdentifier);
113 } else if (dataObjectModification.getDataType().equals(Neighbors.class)) {
114 onNeighborsChanged((DataObjectModification<Neighbors>) dataObjectModification, rootIdentifier);
121 public InstanceIdentifier<NetworkInstance> getInstanceIdentifier() {
122 return this.networkInstanceIId;
126 public synchronized void close() throws Exception {
127 this.registration.close();
128 this.peers.values().forEach(PeerBean::close);
130 this.ribs.values().forEach(RibImpl::close);
135 private static CheckedFuture<Void, TransactionCommitFailedException> initializeNetworkInstance(final DataBroker dataBroker,
136 final InstanceIdentifier<NetworkInstance> networkInstance) {
137 final WriteTransaction wTx = dataBroker.newWriteOnlyTransaction();
138 wTx.merge(LogicalDatastoreType.CONFIGURATION, networkInstance,
139 new NetworkInstanceBuilder().setName(networkInstance.firstKeyOf(NetworkInstance.class).getName()).setProtocols(new ProtocolsBuilder().build()).build());
143 private void onGlobalChanged(final DataObjectModification<Global> dataObjectModification,
144 final InstanceIdentifier<Bgp> rootIdentifier) {
145 switch (dataObjectModification.getModificationType()) {
147 onGlobalRemoved(rootIdentifier);
149 case SUBTREE_MODIFIED:
151 onGlobalModified(rootIdentifier, dataObjectModification.getDataAfter(), null);
159 public synchronized void onGlobalModified(final InstanceIdentifier<Bgp> rootIdentifier, final Global global,
160 final WriteConfiguration configurationWriter) {
161 LOG.debug("Modifying RIB instance with configuration: {}", global);
162 //restart existing rib instance with a new configuration
163 final RibImpl ribImpl = this.ribs.get(rootIdentifier);
164 LOG.debug("RIB instance modified {}", ribImpl);
165 if(ribImpl == null ) {
166 onGlobalCreated(rootIdentifier, global, configurationWriter);
167 } else if (!ribImpl.isGlobalEqual(global)) {
168 onGlobalUpdated(rootIdentifier, global, ribImpl, configurationWriter);
172 private List<PeerBean> closeAllBindedPeers(final InstanceIdentifier<Bgp> rootIdentifier) {
173 final List<PeerBean> filtered = new ArrayList<>();
174 this.peers.entrySet().stream().filter(entry -> entry.getKey().contains(rootIdentifier)).forEach(entry -> {
175 final PeerBean peer = entry.getValue();
182 private synchronized void onGlobalCreated(final InstanceIdentifier<Bgp> rootIdentifier, final Global global,
183 final WriteConfiguration configurationWriter) {
184 LOG.debug("Creating RIB instance with configuration: {}", global);
185 final RibImpl ribImpl = (RibImpl) this.container.getComponentInstance(InstanceType.RIB.getBeanName());
186 initiateRibInstance(rootIdentifier, global, ribImpl, configurationWriter);
187 this.ribs.put(rootIdentifier, ribImpl);
188 LOG.debug("RIB instance created {}", ribImpl);
191 private void onGlobalUpdated(final InstanceIdentifier<Bgp> rootIdentifier, final Global global, final RibImpl ribImpl,
192 final WriteConfiguration configurationWriter) {
193 final List<PeerBean> closedPeers = closeAllBindedPeers(rootIdentifier);
195 initiateRibInstance(rootIdentifier, global, ribImpl, configurationWriter);
196 closedPeers.forEach(peer -> peer.restart(ribImpl, this.mappingService));
200 public synchronized void onGlobalRemoved(final InstanceIdentifier<Bgp> rootIdentifier) {
201 LOG.debug("Removing RIB instance: {}", rootIdentifier);
202 final RibImpl ribImpl = this.ribs.remove(rootIdentifier);
203 if (ribImpl != null) {
204 LOG.debug("RIB instance removed {}", ribImpl);
209 private void registerRibInstance(final RibImpl ribImpl, final String ribInstanceName) {
210 final Dictionary<String, String> properties = new Hashtable<>();
211 properties.put(InstanceType.RIB.getBeanName(), ribInstanceName);
212 final ServiceRegistration<?> serviceRegistration = this.bundleContext.registerService(InstanceType.RIB.getServices(), ribImpl, properties);
213 ribImpl.setServiceRegistration(serviceRegistration);
216 private void initiateRibInstance(final InstanceIdentifier<Bgp> rootIdentifier, final Global global,
217 final RibImpl ribImpl, final WriteConfiguration configurationWriter) {
218 final String ribInstanceName = getRibInstanceName(rootIdentifier);
219 ribImpl.start(global, ribInstanceName, this.mappingService, configurationWriter);
220 registerRibInstance(ribImpl, ribInstanceName);
223 private void onNeighborsChanged(final DataObjectModification<Neighbors> dataObjectModification,
224 final InstanceIdentifier<Bgp> rootIdentifier) {
225 for (final DataObjectModification<? extends DataObject> neighborModification : dataObjectModification.getModifiedChildren()) {
226 switch (neighborModification.getModificationType()) {
228 onNeighborRemoved(rootIdentifier, (Neighbor) neighborModification.getDataBefore());
230 case SUBTREE_MODIFIED:
232 onNeighborModified(rootIdentifier, (Neighbor) neighborModification.getDataAfter(), null);
241 public synchronized void onNeighborModified(final InstanceIdentifier<Bgp> rootIdentifier, final Neighbor neighbor,
242 final WriteConfiguration configurationWriter) {
243 LOG.debug("Modifying Peer instance with configuration: {}", neighbor);
244 //restart peer instance with a new configuration
245 final PeerBean bgpPeer = this.peers.get(getNeighborInstanceIdentifier(rootIdentifier, neighbor.getKey()));
246 if (bgpPeer == null) {
247 onNeighborCreated(rootIdentifier, neighbor, configurationWriter);
248 } else if(!bgpPeer.containsEqualConfiguration(neighbor)){
250 final InstanceIdentifier<Neighbor> neighborInstanceIdentifier = getNeighborInstanceIdentifier(rootIdentifier, neighbor.getKey());
251 initiatePeerInstance(rootIdentifier, neighborInstanceIdentifier, neighbor, bgpPeer, configurationWriter);
253 LOG.debug("Peer instance modified {}", bgpPeer);
256 private synchronized void onNeighborCreated(final InstanceIdentifier<Bgp> rootIdentifier, final Neighbor neighbor,
257 final WriteConfiguration configurationWriter) {
258 LOG.debug("Creating Peer instance with configuration: {}", neighbor);
259 final PeerBean bgpPeer;
260 if (this.mappingService.isApplicationPeer(neighbor)) {
261 bgpPeer = (PeerBean) this.container.getComponentInstance(InstanceType.APP_PEER.getBeanName());
263 bgpPeer = (PeerBean) this.container.getComponentInstance(InstanceType.PEER.getBeanName());
265 final InstanceIdentifier<Neighbor> neighborInstanceIdentifier = getNeighborInstanceIdentifier(rootIdentifier, neighbor.getKey());
266 initiatePeerInstance(rootIdentifier, neighborInstanceIdentifier, neighbor, bgpPeer, configurationWriter);
267 this.peers.put(neighborInstanceIdentifier, bgpPeer);
268 LOG.debug("Peer instance created {}", bgpPeer);
272 public synchronized void onNeighborRemoved(final InstanceIdentifier<Bgp> rootIdentifier, final Neighbor neighbor) {
273 LOG.debug("Removing Peer instance: {}", rootIdentifier);
274 final PeerBean bgpPeer = this.peers.remove(getNeighborInstanceIdentifier(rootIdentifier, neighbor.getKey()));
275 if (bgpPeer != null) {
277 LOG.debug("Peer instance removed {}", bgpPeer);
281 private void registerPeerInstance(final BgpPeer bgpPeer, final String peerInstanceName) {
282 final Dictionary<String, String> properties = new Hashtable<>();
283 properties.put(InstanceType.PEER.getBeanName(), peerInstanceName);
284 final ServiceRegistration<?> serviceRegistration = this.bundleContext.registerService(InstanceType.PEER.getServices(), bgpPeer, properties);
285 bgpPeer.setServiceRegistration(serviceRegistration);
288 private void initiatePeerInstance(final InstanceIdentifier<Bgp> rootIdentifier, final InstanceIdentifier<Neighbor> neighborIdentifier, final Neighbor neighbor,
289 final PeerBean bgpPeer, final WriteConfiguration configurationWriter) {
290 final String peerInstanceName = getNeighborInstanceName(neighborIdentifier);
291 final RibImpl rib = this.ribs.get(rootIdentifier);
293 bgpPeer.start(rib, neighbor, this.mappingService, configurationWriter);
294 if (bgpPeer instanceof BgpPeer) {
295 registerPeerInstance((BgpPeer) bgpPeer, peerInstanceName);
301 public BGPOpenConfigMappingService getMappingService() {
302 return this.mappingService;
306 public <T extends DataObject> ListenableFuture<Void> writeConfiguration(final T data, final InstanceIdentifier<T> identifier) {
307 final ReadWriteTransaction wTx = this.dataBroker.newReadWriteTransaction();
308 wTx.put(LogicalDatastoreType.CONFIGURATION, identifier, data);
313 public <T extends DataObject> ListenableFuture<Void> removeConfiguration(
314 final InstanceIdentifier<T> identifier) {
315 final WriteTransaction wTx = this.dataBroker.newWriteOnlyTransaction();
316 wTx.delete(LogicalDatastoreType.CONFIGURATION, identifier);