2 * Copyright (c) 2016, 2017 Ericsson India Global Services Pvt Ltd. 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
8 package org.opendaylight.netvirt.elan.l2gw.listeners;
10 import static java.util.stream.Collectors.groupingBy;
11 import static java.util.stream.Collectors.toList;
12 import static java.util.stream.Collectors.toMap;
13 import static org.opendaylight.mdsal.common.api.LogicalDatastoreType.CONFIGURATION;
15 import com.google.common.util.concurrent.FutureCallback;
16 import com.google.common.util.concurrent.Futures;
17 import com.google.common.util.concurrent.MoreExecutors;
18 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
19 import java.util.List;
21 import java.util.Optional;
23 import java.util.concurrent.ExecutionException;
24 import java.util.concurrent.TimeUnit;
25 import java.util.function.BiPredicate;
26 import java.util.function.Function;
27 import java.util.function.Predicate;
28 import javax.annotation.PreDestroy;
29 import javax.inject.Inject;
30 import javax.inject.Singleton;
31 import org.opendaylight.genius.datastoreutils.SingleTransactionDataBroker;
32 import org.opendaylight.genius.utils.hwvtep.HwvtepSouthboundUtils;
33 import org.opendaylight.infrautils.metrics.Counter;
34 import org.opendaylight.infrautils.metrics.Labeled;
35 import org.opendaylight.infrautils.metrics.MetricDescriptor;
36 import org.opendaylight.infrautils.metrics.MetricProvider;
37 import org.opendaylight.infrautils.utils.concurrent.Executors;
38 import org.opendaylight.mdsal.binding.api.DataBroker;
39 import org.opendaylight.mdsal.binding.api.DataObjectModification;
40 import org.opendaylight.mdsal.binding.api.ReadTransaction;
41 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
42 import org.opendaylight.netvirt.elan.l2gw.ha.HwvtepHAUtil;
43 import org.opendaylight.netvirt.elan.l2gw.recovery.impl.L2GatewayConnectionInstanceRecoveryHandler;
44 import org.opendaylight.netvirt.elan.l2gw.recovery.impl.L2GatewayServiceRecoveryHandler;
45 import org.opendaylight.netvirt.elan.l2gw.utils.L2GatewayConnectionUtils;
46 import org.opendaylight.netvirt.elan.utils.Scheduler;
47 import org.opendaylight.netvirt.neutronvpn.api.l2gw.L2GatewayCache;
48 import org.opendaylight.netvirt.neutronvpn.api.l2gw.L2GatewayDevice;
49 import org.opendaylight.serviceutils.srm.RecoverableListener;
50 import org.opendaylight.serviceutils.srm.ServiceRecoveryRegistry;
51 import org.opendaylight.serviceutils.tools.listener.AbstractClusteredAsyncDataTreeChangeListener;
52 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
53 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.l2gateways.rev150712.l2gateway.connections.attributes.L2gatewayConnections;
54 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.l2gateways.rev150712.l2gateway.connections.attributes.l2gatewayconnections.L2gatewayConnection;
55 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.rev150712.Neutron;
56 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalAugmentation;
57 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.PhysicalSwitchAugmentation;
58 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.physical._switch.attributes.TunnelIps;
59 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
60 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
61 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
62 import org.slf4j.Logger;
63 import org.slf4j.LoggerFactory;
66 public class L2GatewayConnectionListener extends AbstractClusteredAsyncDataTreeChangeListener<L2gatewayConnection>
67 implements RecoverableListener {
68 private static final Logger LOG = LoggerFactory.getLogger(L2GatewayConnectionListener.class);
69 private static final int MAX_READ_TRIALS = 120;
71 private static final Function<Node, InstanceIdentifier<Node>> TO_GLOBAL_PATH =
72 HwvtepHAUtil::getGlobalNodePathFromPSNode;
74 private static final Function<Node, InstanceIdentifier<Node>> TO_NODE_PATH =
75 (node) -> HwvtepSouthboundUtils.createInstanceIdentifier(node.getNodeId());
77 private static final Function<InstanceIdentifier<Node>, String> GET_DEVICE_NAME = HwvtepHAUtil::getPsName;
79 private static final Predicate<InstanceIdentifier<Node>> IS_PS_NODE = (psIid) ->
80 HwvtepHAUtil.getPsName(psIid) != null;
82 private static final Predicate<Node> IS_HA_PARENT_NODE = (node) -> {
83 HwvtepGlobalAugmentation augmentation = node.augmentation(HwvtepGlobalAugmentation.class);
84 if (augmentation != null && augmentation.getManagers() != null) {
85 return augmentation.getManagers().stream().anyMatch(
86 manager -> manager.key().getTarget().getValue().equals(HwvtepHAUtil.MANAGER_KEY));
91 private static final BiPredicate<InstanceIdentifier<Node>, Node> PS_NODE_OF_PARENT_NODE =
92 (psIid, node) -> psIid.firstKeyOf(Node.class).getNodeId().getValue().contains(node.getNodeId().getValue());
94 private final DataBroker broker;
95 private final L2GatewayConnectionUtils l2GatewayConnectionUtils;
96 private final Scheduler scheduler;
97 private final L2GatewayCache l2GatewayCache;
98 private final Labeled<Labeled<Counter>> elanConnectionsCounter;
101 public L2GatewayConnectionListener(final DataBroker db, L2GatewayConnectionUtils l2GatewayConnectionUtils,
102 Scheduler scheduler, L2GatewayCache l2GatewayCache,
103 MetricProvider metricProvider,
104 final L2GatewayServiceRecoveryHandler l2GatewayServiceRecoveryHandler,
105 final L2GatewayConnectionInstanceRecoveryHandler l2InstanceRecoveryHandler,
106 final ServiceRecoveryRegistry serviceRecoveryRegistry) {
107 super(db, LogicalDatastoreType.CONFIGURATION, InstanceIdentifier.create(Neutron.class)
108 .child(L2gatewayConnections.class).child(L2gatewayConnection.class),
109 Executors.newListeningSingleThreadExecutor("L2GatewayConnectionListener", LOG));
111 this.l2GatewayConnectionUtils = l2GatewayConnectionUtils;
112 this.scheduler = scheduler;
113 this.l2GatewayCache = l2GatewayCache;
114 this.elanConnectionsCounter = metricProvider.newCounter(MetricDescriptor.builder()
115 .anchor(this).project("netvirt").module("l2gw").id("connections").build(), "modification", "elan");
116 serviceRecoveryRegistry.addRecoverableListener(l2GatewayServiceRecoveryHandler.buildServiceRegistryKey(),
118 serviceRecoveryRegistry.addRecoverableListener(l2InstanceRecoveryHandler.buildServiceRegistryKey(),
124 loadL2GwDeviceCache(1);
125 LOG.trace("Loading l2gw connection cache");
126 loadL2GwConnectionCache();
131 public void close() {
133 Executors.shutdownAndAwaitTermination(getExecutorService());
137 public void registerListener() {
139 LOG.info("Registering L2GatewayConnectionListener");
142 public void deregisterListener() {
144 LOG.info("Deregistering L2GatewayConnectionListener");
148 public void add(final InstanceIdentifier<L2gatewayConnection> identifier, final L2gatewayConnection input) {
149 LOG.trace("Adding L2gatewayConnection: {}", input);
150 elanConnectionsCounter
151 .label(DataObjectModification.ModificationType.WRITE.name())
152 .label(input.getNetworkId().getValue()).increment();
153 // Get associated L2GwId from 'input'
154 // Create logical switch in each of the L2GwDevices part of L2Gw
155 // Logical switch name is network UUID
156 // Add L2GwDevices to ELAN
157 l2GatewayConnectionUtils.addL2GatewayConnection(input);
161 public void remove(InstanceIdentifier<L2gatewayConnection> identifier, L2gatewayConnection input) {
162 LOG.trace("Removing L2gatewayConnection: {}", input);
163 elanConnectionsCounter
164 .label(DataObjectModification.ModificationType.DELETE.name())
165 .label(input.getNetworkId().getValue()).increment();
166 l2GatewayConnectionUtils.deleteL2GatewayConnection(input);
170 public void update(InstanceIdentifier<L2gatewayConnection> identifier, L2gatewayConnection original,
171 L2gatewayConnection update) {
172 LOG.trace("Updating L2gatewayConnection : original value={}, updated value={}", original, update);
175 @SuppressFBWarnings(value = "UPM_UNCALLED_PRIVATE_METHOD",
176 justification = "https://github.com/spotbugs/spotbugs/issues/811")
177 private void loadL2GwDeviceCache(final int trialNo) {
178 scheduler.getScheduledExecutorService().schedule(() -> {
179 if (trialNo == MAX_READ_TRIALS) {
180 LOG.error("Failed to read config topology");
183 ReadTransaction tx = broker.newReadOnlyTransaction();
184 InstanceIdentifier<Topology> topoIid = HwvtepSouthboundUtils.createHwvtepTopologyInstanceIdentifier();
185 Futures.addCallback(tx.read(CONFIGURATION, topoIid), new FutureCallback<Optional<Topology>>() {
187 public void onSuccess(Optional<Topology> topologyOptional) {
188 if (topologyOptional != null && topologyOptional.isPresent()) {
189 loadL2GwDeviceCache(topologyOptional.get().getNode());
195 public void onFailure(Throwable throwable) {
196 loadL2GwDeviceCache(trialNo + 1);
198 }, MoreExecutors.directExecutor());
200 }, 1, TimeUnit.SECONDS);
203 @SuppressFBWarnings(value = "UPM_UNCALLED_PRIVATE_METHOD",
204 justification = "https://github.com/spotbugs/spotbugs/issues/811")
205 private void loadL2GwDeviceCache(List<Node> nodes) {
207 LOG.debug("No config topology nodes are present");
210 Map<InstanceIdentifier<Node>, Node> allNodes = nodes
212 .collect(toMap(TO_NODE_PATH, Function.identity()));
214 LOG.trace("Loading all config nodes");
216 Set<InstanceIdentifier<Node>> allIids = allNodes.keySet();
218 Map<String, List<InstanceIdentifier<Node>>> psNodesByDeviceName = allIids
221 .collect(groupingBy(GET_DEVICE_NAME, toList()));
224 allNodes.values().stream()
225 .filter(IS_HA_PARENT_NODE)
226 .forEach(parentNode -> allIids.stream()
228 .filter(psIid -> PS_NODE_OF_PARENT_NODE.test(psIid, parentNode))
229 .forEach(psIid -> addL2DeviceToCache(psIid, parentNode, allNodes.get(psIid))));
231 //Process non HA nodes there will be only one ps node iid for each device for non ha nodes
232 psNodesByDeviceName.values().stream()
233 .filter(psIids -> psIids.size() == 1)
234 .map(psIids -> psIids.get(0))
236 Node psNode = allNodes.get(psIid);
237 Node globalNode = allNodes.get(TO_GLOBAL_PATH.apply(psNode));
238 if (globalNode != null) {
239 addL2DeviceToCache(psIid, globalNode, psNode);
244 public void loadL2GwConnectionCache() {
245 InstanceIdentifier<L2gatewayConnections> parentIid = InstanceIdentifier
246 .create(Neutron.class)
247 .child(L2gatewayConnections.class);
249 Optional<L2gatewayConnections> optional = Optional.empty();
251 optional = SingleTransactionDataBroker.syncReadOptional(broker, CONFIGURATION,
253 } catch (ExecutionException | InterruptedException e) {
254 LOG.error("loadL2GwConnectionCache: Exception while reading L2gatewayConnections DS", e);
256 if (optional.isPresent() && optional.get().getL2gatewayConnection() != null) {
257 LOG.trace("Found some connections to fill in l2gw connection cache");
258 optional.get().getL2gatewayConnection()
259 .forEach(connection -> {
260 add(parentIid.child(L2gatewayConnection.class, connection.key()), connection);
265 void addL2DeviceToCache(InstanceIdentifier<Node> psIid, Node globalNode, Node psNode) {
266 LOG.trace("Adding device to cache {}", psNode.getNodeId().getValue());
267 String deviceName = HwvtepHAUtil.getPsName(psIid);
268 L2GatewayDevice l2GwDevice = l2GatewayCache.addOrGet(deviceName);
269 l2GwDevice.setConnected(true);
270 l2GwDevice.setHwvtepNodeId(globalNode.getNodeId().getValue());
272 List<TunnelIps> tunnelIps = psNode.augmentation(PhysicalSwitchAugmentation.class) != null
273 ? psNode.augmentation(PhysicalSwitchAugmentation.class).getTunnelIps() : null;
274 if (tunnelIps != null) {
275 for (TunnelIps tunnelIp : tunnelIps) {
276 IpAddress tunnelIpAddr = tunnelIp.getTunnelIpsKey();
277 l2GwDevice.addTunnelIp(tunnelIpAddr);