2 * Copyright (c) 2018 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.utils;
10 import static org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType.CONFIGURATION;
12 import java.util.ArrayList;
13 import java.util.Collections;
14 import java.util.HashMap;
15 import java.util.List;
17 import java.util.concurrent.ConcurrentHashMap;
18 import java.util.concurrent.ScheduledFuture;
19 import java.util.concurrent.TimeUnit;
20 import java.util.function.BiPredicate;
21 import java.util.function.Function;
22 import java.util.function.Predicate;
23 import java.util.stream.Collectors;
24 import javax.inject.Inject;
25 import javax.inject.Singleton;
26 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
27 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
28 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
29 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
30 import org.opendaylight.genius.mdsalutil.MDSALUtil;
31 import org.opendaylight.genius.utils.hwvtep.HwvtepSouthboundUtils;
32 import org.opendaylight.infrautils.utils.concurrent.ListenableFutures;
33 import org.opendaylight.netvirt.elan.cache.ElanInstanceCache;
34 import org.opendaylight.netvirt.elan.utils.Scheduler;
35 import org.opendaylight.netvirt.neutronvpn.api.l2gw.L2GatewayCache;
36 import org.opendaylight.netvirt.neutronvpn.api.l2gw.L2GatewayDevice;
37 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.config.rev150710.ElanConfig;
38 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.l2gateways.rev150712.l2gateway.connections.attributes.l2gatewayconnections.L2gatewayConnection;
39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalAugmentation;
40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepPhysicalPortAugmentation;
41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.global.attributes.LogicalSwitches;
42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.physical.port.attributes.VlanBindings;
43 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
44 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
45 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeBuilder;
46 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPoint;
47 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
48 import org.slf4j.Logger;
49 import org.slf4j.LoggerFactory;
52 public class StaleVlanBindingsCleaner {
54 private static final Logger LOG = LoggerFactory.getLogger(StaleVlanBindingsCleaner.class);
55 private static final int DEFAULT_STALE_CLEANUP_DELAY_SECS = 900;
57 private static Function<VlanBindings, String> LOGICAL_SWITCH_FROM_BINDING =
58 (binding) -> binding.getLogicalSwitchRef().getValue().firstKeyOf(
59 LogicalSwitches.class).getHwvtepNodeName().getValue();
61 private static BiPredicate<List<String>, String> IS_STALE_LOGICAL_SWITCH =
62 (validNetworks, logicalSwitch) -> !validNetworks.contains(logicalSwitch);
64 private static Predicate<TerminationPoint> CONTAINS_VLANBINDINGS = (port) ->
65 port.augmentation(HwvtepPhysicalPortAugmentation.class) != null
66 && port.augmentation(HwvtepPhysicalPortAugmentation.class).getVlanBindings() != null;
69 private final DataBroker broker;
70 private final ManagedNewTransactionRunner txRunner;
71 private final ElanL2GatewayUtils elanL2GatewayUtils;
72 private final Scheduler scheduler;
73 private final ElanConfig elanConfig;
74 private final L2GatewayCache l2GatewayCache;
75 private final ElanInstanceCache elanInstanceCache;
76 private final Map<NodeId, ScheduledFuture> cleanupTasks = new ConcurrentHashMap<>();
79 public StaleVlanBindingsCleaner(final DataBroker broker,
80 final ElanL2GatewayUtils elanL2GatewayUtils,
81 final Scheduler scheduler,
82 final ElanConfig elanConfig,
83 final L2GatewayCache l2GatewayCache,
84 final ElanInstanceCache elanInstanceCache) {
86 this.txRunner = new ManagedNewTransactionRunnerImpl(broker);
87 this.elanL2GatewayUtils = elanL2GatewayUtils;
88 this.scheduler = scheduler;
89 this.elanConfig = elanConfig;
90 this.l2GatewayCache = l2GatewayCache;
91 this.elanInstanceCache = elanInstanceCache;
94 private long getCleanupDelay() {
95 return elanConfig.getL2gwStaleVlanCleanupDelaySecs() != null
96 ? elanConfig.getL2gwStaleVlanCleanupDelaySecs() : DEFAULT_STALE_CLEANUP_DELAY_SECS;
99 public void scheduleStaleCleanup(final String deviceName,
100 final InstanceIdentifier<Node> globalNodeIid,
101 final InstanceIdentifier<Node> psNodeIid) {
102 NodeId psNodeId = psNodeIid.firstKeyOf(Node.class).getNodeId();
103 cleanupTasks.compute(psNodeId, (key, ft) -> {
107 return scheduler.getScheduledExecutorService().schedule(
109 L2GatewayDevice l2GwDevice = l2GatewayCache.get(deviceName);
110 NodeId globalNodeId = globalNodeIid.firstKeyOf(Node.class).getNodeId();
111 Node configNode = MDSALUtil.read(broker, CONFIGURATION, globalNodeIid)
112 .or(defaultNode(globalNodeId));
113 Node configPsNode = MDSALUtil.read(broker, CONFIGURATION, psNodeIid).or(defaultNode(psNodeId));
114 cleanupStaleLogicalSwitches(l2GwDevice, configNode, configPsNode);
115 cleanupTasks.remove(psNodeIid.firstKeyOf(Node.class).getNodeId());
116 }, getCleanupDelay(), TimeUnit.SECONDS);
120 private Node defaultNode(final NodeId nodeId) {
121 return new NodeBuilder().setNodeId(nodeId).build();
124 private void cleanupStaleLogicalSwitches(final L2GatewayDevice l2GwDevice,
125 final Node configNode,
126 final Node configPsNode) {
128 String globalNodeId = configNode.getNodeId().getValue();
129 List<L2gatewayConnection> connectionsOfDevice = L2GatewayConnectionUtils.getAssociatedL2GwConnections(
130 broker, l2GwDevice.getL2GatewayIds());
132 List<String> validNetworks = connectionsOfDevice.stream()
133 .map((connection) -> connection.getNetworkId().getValue())
134 .filter(elan -> elanInstanceCache.get(elan).isPresent())
135 .collect(Collectors.toList());
137 List<String> logicalSwitchesOnDevice = getLogicalSwitchesOnDevice(configNode);
139 List<String> staleLogicalSwitches = logicalSwitchesOnDevice.stream()
140 .filter((staleLogicalSwitch) -> IS_STALE_LOGICAL_SWITCH.test(validNetworks, staleLogicalSwitch))
141 .collect(Collectors.toList());
143 if (!staleLogicalSwitches.isEmpty()) {
144 Map<String, List<InstanceIdentifier<VlanBindings>>> vlansByLogicalSwitch = getVlansByLogicalSwitchOnDevice(
146 staleLogicalSwitches.forEach((staleLogicalSwitch) -> cleanupStaleBindings(
147 globalNodeId, vlansByLogicalSwitch, staleLogicalSwitch));
151 private Map<String, List<InstanceIdentifier<VlanBindings>>> getVlansByLogicalSwitchOnDevice(
152 final Node configPsNode) {
153 List<TerminationPoint> ports = configPsNode.getTerminationPoint();
155 return Collections.emptyMap();
157 Map<String, List<InstanceIdentifier<VlanBindings>>> vlans = new HashMap<>();
159 .filter(CONTAINS_VLANBINDINGS)
160 .forEach((port) -> port.augmentation(HwvtepPhysicalPortAugmentation.class)
162 .forEach((binding) -> putVlanBindingVsLogicalSwitch(configPsNode, vlans, port, binding)));
166 private void putVlanBindingVsLogicalSwitch(final Node configPsNode,
167 final Map<String, List<InstanceIdentifier<VlanBindings>>> vlans,
168 final TerminationPoint port,
169 final VlanBindings binding) {
170 String logicalSwitch = LOGICAL_SWITCH_FROM_BINDING.apply(binding);
171 vlans.computeIfAbsent(logicalSwitch, (name) -> new ArrayList<>())
172 .add(createVlanIid(configPsNode.getNodeId(), port, binding));
175 private InstanceIdentifier<VlanBindings> createVlanIid(final NodeId nodeId,
176 final TerminationPoint tp,
177 final VlanBindings vlanBinding) {
178 return HwvtepSouthboundUtils.createInstanceIdentifier(nodeId)
179 .child(TerminationPoint.class, tp.key())
180 .augmentation(HwvtepPhysicalPortAugmentation.class)
181 .child(VlanBindings.class, vlanBinding.key());
184 private void cleanupStaleBindings(final String globalNodeId,
185 final Map<String, List<InstanceIdentifier<VlanBindings>>> vlans,
186 final String staleLogicalSwitch) {
188 LOG.trace("CleanupStaleBindings for logical switch {}", staleLogicalSwitch);
189 ListenableFutures.addErrorLogging(
190 txRunner.callWithNewReadWriteTransactionAndSubmit(tx -> {
191 if (vlans.containsKey(staleLogicalSwitch)) {
192 vlans.get(staleLogicalSwitch)
193 .forEach((vlanIid) -> tx.delete(LogicalDatastoreType.CONFIGURATION, vlanIid));
196 LOG, "Failed to delete stale vlan bindings from node {}", globalNodeId);
197 elanL2GatewayUtils.scheduleDeleteLogicalSwitch(new NodeId(globalNodeId), staleLogicalSwitch, true);
200 private List<String> getLogicalSwitchesOnDevice(final Node globalConfigNode) {
201 HwvtepGlobalAugmentation augmentation = globalConfigNode.augmentation(HwvtepGlobalAugmentation.class);
202 if (augmentation == null || augmentation.getLogicalSwitches() == null) {
203 return Collections.emptyList();
206 .getLogicalSwitches()
208 .map((ls) -> ls.getHwvtepNodeName().getValue())
209 .collect(Collectors.toList());