2 * Copyright (c) 2018 AT&T Intellectual Property. 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.protocol.bgp.rib.impl.config;
10 import static org.opendaylight.protocol.bgp.parser.GracefulRestartUtil.gracefulRestartCapability;
11 import static org.opendaylight.protocol.bgp.parser.GracefulRestartUtil.gracefulRestartTable;
13 import com.google.common.collect.Maps;
14 import java.util.ArrayList;
15 import java.util.Collection;
16 import java.util.HashMap;
17 import java.util.HashSet;
18 import java.util.List;
21 import org.opendaylight.protocol.bgp.openconfig.spi.BGPTableTypeRegistryConsumer;
22 import org.opendaylight.protocol.bgp.rib.impl.BgpPeerUtil;
23 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.multiprotocol.rev151009.bgp.common.afi.safi.list.AfiSafi;
24 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.multiprotocol.rev151009.bgp.common.afi.safi.list.afi.safi.GracefulRestart;
25 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.multiprotocol.rev151009.bgp.common.afi.safi.list.afi.safi.graceful.restart.Config;
26 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.types.rev151009.AfiSafiType;
27 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.types.rev171204.Uint24;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.ll.graceful.restart.rev181112.Config1;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.ll.graceful.restart.rev181112.Config2;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.ll.graceful.restart.rev181112.afi.safi.ll.graceful.restart.LlGracefulRestart;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev200120.open.message.BgpParameters;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev200120.open.message.BgpParametersBuilder;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev200120.open.message.bgp.parameters.OptionalCapabilities;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev200120.open.message.bgp.parameters.OptionalCapabilitiesBuilder;
35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev200120.open.message.bgp.parameters.optional.capabilities.CParameters;
36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev200120.open.message.bgp.parameters.optional.capabilities.CParametersBuilder;
37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.CParameters1Builder;
38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.mp.capabilities.LlGracefulRestartCapabilityBuilder;
39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.mp.capabilities.ll.graceful.restart.capability.Tables.AfiFlags;
40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.mp.capabilities.ll.graceful.restart.capability.TablesBuilder;
41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.rib.TablesKey;
42 import org.opendaylight.yangtools.yang.binding.util.BindingMap;
43 import org.opendaylight.yangtools.yang.common.Uint32;
44 import org.slf4j.Logger;
45 import org.slf4j.LoggerFactory;
48 * Helpers for dealing with Graceful Restart capabilities.
50 * @deprecated This class is competing with bgp-parser-api's view of GR and will be renamed and/or eliminated.
52 // FIXME: This functionality should live in bgp-parser-api, except the use of RIB version of TablesKey prevents that.
53 // We should be able to refactor this class by providing TablesKey translation somewhere.
55 public final class GracefulRestartUtil {
56 private static final Logger LOG = LoggerFactory.getLogger(GracefulRestartUtil.class);
58 private GracefulRestartUtil() {
62 public static CParameters getGracefulCapability(final Map<TablesKey, Boolean> tables,
63 final int restartTime,
64 final boolean localRestarting) {
65 return gracefulRestartCapability(tables.entrySet().stream()
67 final TablesKey key = entry.getKey();
68 return gracefulRestartTable(key.getAfi(), key.getSafi(), entry.getValue());
70 .collect(BindingMap.toMap()), restartTime, localRestarting);
73 public static CParameters getLlGracefulCapability(final Set<BgpPeerUtil.LlGracefulRestartDTO> llGracefulRestarts) {
74 return new CParametersBuilder()
75 .addAugmentation(new CParameters1Builder()
76 .setLlGracefulRestartCapability(new LlGracefulRestartCapabilityBuilder()
77 .setTables(llGracefulRestarts.stream()
78 .map(dto -> new TablesBuilder()
79 .setAfi(dto.getTableKey().getAfi())
80 .setSafi(dto.getTableKey().getSafi())
81 .setAfiFlags(new AfiFlags(dto.isForwarding()))
82 .setLongLivedStaleTime(new Uint24(Uint32.valueOf(dto.getStaleTime())))
84 .collect(BindingMap.toMap()))
90 static Set<TablesKey> getGracefulTables(final Collection<? extends AfiSafi> afiSafis,
91 final BGPTableTypeRegistryConsumer tableTypeRegistry) {
92 Set<TablesKey> gracefulTables = new HashSet<>();
93 for (final AfiSafi afiSafi : afiSafis) {
94 final GracefulRestart gr = afiSafi.getGracefulRestart();
96 final Config config = gr.getConfig();
97 if (config != null && Boolean.TRUE.equals(config.getEnabled())) {
98 final AfiSafiType afiSafiName = afiSafi.getAfiSafiName();
99 if (afiSafiName != null) {
100 final TablesKey tablesKey = tableTypeRegistry.getTableKey(afiSafiName);
101 if (tablesKey != null) {
102 gracefulTables.add(tablesKey);
108 return gracefulTables;
111 static Map<TablesKey, Integer> getLlGracefulTimers(final Collection<? extends AfiSafi> afiSafis,
112 final BGPTableTypeRegistryConsumer tableTypeRegistry) {
113 final Map<TablesKey, Integer> timers = new HashMap<>();
114 afiSafis.forEach(afiSafi -> {
115 final GracefulRestart gracefulRestart = afiSafi.getGracefulRestart();
116 if (gracefulRestart != null) {
117 final Config gracefulRestartConfig = gracefulRestart.getConfig();
118 if (gracefulRestartConfig != null) {
119 final LlGracefulRestart llGracefulRestart;
120 final Config1 peerAug = gracefulRestartConfig.augmentation(Config1.class);
121 if (peerAug != null) {
122 llGracefulRestart = peerAug.getLlGracefulRestart();
124 final Config2 neighborAug = gracefulRestartConfig.augmentation(Config2.class);
125 if (neighborAug != null) {
126 llGracefulRestart = neighborAug.getLlGracefulRestart();
131 if (llGracefulRestart != null) {
132 final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.ll.graceful.restart
133 .rev181112.afi.safi.ll.graceful.restart.ll.graceful.restart.Config config =
134 llGracefulRestart.getConfig();
135 if (config != null) {
136 final Uint24 staleTime = config.getLongLivedStaleTime();
137 if (staleTime != null && staleTime.getValue().toJava() > 0) {
138 final TablesKey key = tableTypeRegistry.getTableKey(afiSafi.getAfiSafiName());
140 timers.put(key, staleTime.getValue().intValue());
142 LOG.debug("Skipping unsupported afi-safi {}", afiSafi.getAfiSafiName());
153 public static BgpParameters getGracefulBgpParameters(final List<OptionalCapabilities> fixedCapabilities,
154 final Set<TablesKey> gracefulTables,
155 final Set<TablesKey> preservedTables,
156 final int gracefulRestartTimer,
157 final boolean localRestarting,
158 final Set<BgpPeerUtil.LlGracefulRestartDTO> llGracefulDTOs) {
159 final List<OptionalCapabilities> capabilities = new ArrayList<>(fixedCapabilities);
160 capabilities.add(new OptionalCapabilitiesBuilder()
161 .setCParameters(getGracefulCapability(Maps.asMap(gracefulTables, preservedTables::contains),
162 gracefulRestartTimer, localRestarting))
164 capabilities.add(new OptionalCapabilitiesBuilder()
165 .setCParameters(getLlGracefulCapability(llGracefulDTOs))
168 return new BgpParametersBuilder().setOptionalCapabilities(capabilities).build();