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.openconfig.impl.moduleconfig;
11 import com.google.common.base.Function;
12 import com.google.common.base.Optional;
13 import com.google.common.base.Predicate;
14 import com.google.common.collect.FluentIterable;
15 import com.google.common.collect.ImmutableList;
16 import com.google.common.collect.ImmutableMap;
17 import com.google.common.collect.ImmutableMap.Builder;
18 import com.google.common.collect.Iterables;
19 import java.util.ArrayList;
20 import java.util.Collections;
21 import java.util.HashMap;
22 import java.util.List;
24 import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
25 import org.opendaylight.controller.md.sal.binding.api.ReadTransaction;
26 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
27 import org.opendaylight.protocol.bgp.openconfig.impl.util.OpenConfigUtil;
28 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.multiprotocol.rev151009.bgp.common.afi.safi.list.AfiSafi;
29 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.multiprotocol.rev151009.bgp.use.multiple.paths.use.multiple.paths.Config;
30 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.multiprotocol.rev151009.bgp.use.multiple.paths.use.multiple.paths.Ibgp;
31 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.AfiSafi1;
32 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.types.rev151009.AfiSafiType;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.bgp.path.selection.mode.rev160301.AdvertiseAllPaths;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.bgp.path.selection.mode.rev160301.AdvertiseNPaths;
35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.bgp.path.selection.mode.rev160301.PathSelectionModeFactory;
36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.bgp.rib.impl.rev160330.BgpPathSelectionMode;
37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.bgp.rib.impl.rev160330.BgpPsmImpl;
38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.rev130405.ModuleType;
39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.rev130405.ServiceRef;
40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.rev130405.modules.Module;
41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.rev130405.modules.ModuleKey;
42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.rev130405.services.Service;
43 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.rev130405.services.ServiceKey;
44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.rev130405.services.service.Instance;
45 import org.opendaylight.yangtools.yang.binding.ChildOf;
47 final class PathSelectionModeFunction {
49 private static final Map<String, Class<? extends ModuleType>> PATH_SELECTION_MODULE_TYPES;
52 final Builder<String, Class<? extends ModuleType>> builder = ImmutableMap.builder();
53 builder.put(AdvertiseNPaths.QNAME.getLocalName(), AdvertiseNPaths.class);
54 builder.put(AdvertiseAllPaths.QNAME.getLocalName(), AdvertiseAllPaths.class);
55 PATH_SELECTION_MODULE_TYPES = builder.build();
58 private PathSelectionModeFunction() {
59 throw new UnsupportedOperationException();
62 public static <T extends ServiceRef & ChildOf<Module>> List<T> getPathSelectionMode(final ReadOnlyTransaction rTx, final BGPConfigModuleProvider
63 configModuleWriter, final Function<String, T> function, final List<AfiSafi> afiSafis) {
64 final ImmutableList<AfiSafi> afiSafisMultipath = FluentIterable.from(afiSafis).filter(new Predicate<AfiSafi>() {
66 public boolean apply(final AfiSafi afisafi) {
67 final AfiSafi1 afiSafi1 = afisafi.getAugmentation(AfiSafi1.class);
68 if (afiSafi1 != null) {
69 final org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.multiprotocol.rev151009.bgp.use.multiple.paths.UseMultiplePaths useMultiplePaths = afiSafi1.getUseMultiplePaths();
70 if (useMultiplePaths != null) {
71 final Config useMultiplePathsConfig = useMultiplePaths.getConfig();
72 if (useMultiplePathsConfig != null && useMultiplePathsConfig.isEnabled() != null) {
73 return useMultiplePathsConfig.isEnabled();
80 final Optional<Service> maybeService = configModuleWriter.readConfigService(new ServiceKey(BgpPathSelectionMode.class), rTx);
81 if (maybeService.isPresent()) {
82 final Service service = maybeService.get();
83 final List<Module> modules = new ArrayList<>();
84 final Map<String, String> moduleNameToService = new HashMap<>();
85 for (final Instance instance : service.getInstance()) {
86 final String moduleName = OpenConfigUtil.getModuleName(instance.getProvider());
87 final ModuleKey moduleKey = new ModuleKey(moduleName, BgpPsmImpl.class);
88 final Optional<Module> moduleConfig = configModuleWriter.readModuleConfiguration(moduleKey, rTx);
89 if (moduleConfig.isPresent()) {
90 modules.add(moduleConfig.get());
92 moduleNameToService.put(moduleName, instance.getName());
95 return TableTypesFunction.toServices(function, afiSafisMultipath, afiSafiToModuleName(afiSafisMultipath, modules, configModuleWriter, rTx), moduleNameToService);
97 return Collections.emptyList();
98 } catch (final ReadFailedException e) {
99 throw new IllegalStateException(OpenConfigUtil.FAILED_TO_READ_SERVICE, e);
103 private static Class<? extends ModuleType> getModuleTypeClass(final String moduleType) {
104 return PATH_SELECTION_MODULE_TYPES.get(moduleType);
107 private static Map<Class<? extends AfiSafiType>, String> afiSafiToModuleName(final List<AfiSafi> afiSafis, final List<Module> modules, final BGPConfigModuleProvider configModuleWriter, final ReadTransaction rTx) throws ReadFailedException {
108 final Map<Class<? extends AfiSafiType>, String> afiSafiToModuleName = new HashMap<>(afiSafis.size());
109 for (final Module module : modules) {
110 final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.bgp.rib.impl.rev160330.modules.module.configuration.BgpPsmImpl config =
111 ((org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.bgp.rib.impl.rev160330.modules.module.configuration.BgpPsmImpl) module.getConfiguration());
113 final Optional<AfiSafi> tryFind = Iterables.tryFind(afiSafis, new Predicate<AfiSafi>() {
115 public boolean apply(final AfiSafi input) {
116 final Optional<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.BgpTableType> bgpTableType = OpenConfigUtil.toBgpTableType(input.getAfiSafiName());
117 if (bgpTableType.isPresent() && AddPathFunction.tableTypeExists(configModuleWriter, rTx,
118 (String) config.getPathAddressFamily().getName(), bgpTableType.get())) {
119 final Ibgp ibgp = input.getAugmentation(AfiSafi1.class).getUseMultiplePaths().getIbgp();
120 return pathSelectionModeExists(configModuleWriter, rTx, (String) config.getPathSelectionMode().getName(), ibgp);
125 if (tryFind.isPresent()) {
126 afiSafiToModuleName.put(tryFind.get().getAfiSafiName(), module.getName());
129 return afiSafiToModuleName;
132 public static boolean pathSelectionModeExists(final BGPConfigModuleProvider configModuleWriter, final ReadTransaction rTx,
133 final String instanceName, final Ibgp ibgp) {
136 final Optional<Service> maybeService = configModuleWriter.readConfigService(new ServiceKey(PathSelectionModeFactory.class), rTx);
137 if (maybeService.isPresent()) {
138 for (final Instance instance : maybeService.get().getInstance()) {
139 final String provider = instance.getProvider();
140 final String moduleName = OpenConfigUtil.getModuleName(provider);
141 final String moduleType = OpenConfigUtil.getModuleType(provider);
142 if (moduleName.equals(instanceName)) {
143 final ModuleKey moduleKey = new ModuleKey(moduleName, getModuleTypeClass(moduleType));
144 final Optional<Module> moduleConfig = configModuleWriter.readModuleConfiguration(moduleKey, rTx);
145 if (moduleConfig.isPresent()) {
146 if (ibgp != null && ibgp.getConfig() != null && ibgp.getConfig().getMaximumPaths() != null) {
147 final long maxPaths = ibgp.getConfig().getMaximumPaths();
148 if (moduleConfig.get().getType().equals(AdvertiseNPaths.class)) {
149 final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.bgp.path.selection.mode.rev160301.modules.module.configuration.AdvertiseNPaths config =
150 (org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.bgp.path.selection.mode.rev160301.modules.module.configuration.AdvertiseNPaths)moduleConfig.get().getConfiguration();
151 if (maxPaths == config.getNBestPaths().longValue()) {
156 if (moduleConfig.get().getType().equals(AdvertiseAllPaths.class)) {
165 } catch (final ReadFailedException e) {
166 throw new IllegalStateException(OpenConfigUtil.FAILED_TO_READ_SERVICE, e);