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 com.google.common.base.Preconditions;
12 import com.google.common.base.Strings;
13 import com.google.common.util.concurrent.Futures;
14 import com.google.common.util.concurrent.ListenableFuture;
15 import java.util.Objects;
16 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
17 import org.opendaylight.controller.md.sal.dom.api.DOMDataTreeChangeService;
18 import org.opendaylight.controller.md.sal.dom.api.DOMDataTreeIdentifier;
19 import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonService;
20 import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceRegistration;
21 import org.opendaylight.mdsal.singleton.common.api.ServiceGroupIdentifier;
22 import org.opendaylight.protocol.bgp.openconfig.spi.BGPOpenConfigMappingService;
23 import org.opendaylight.protocol.bgp.rib.impl.ApplicationPeer;
24 import org.opendaylight.protocol.bgp.rib.impl.spi.BgpDeployer.WriteConfiguration;
25 import org.opendaylight.protocol.bgp.rib.impl.spi.RIB;
26 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbor.group.Config;
27 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbors.Neighbor;
28 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.ApplicationRib;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.ApplicationRibId;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.Tables;
32 import org.opendaylight.yangtools.concepts.ListenerRegistration;
33 import org.opendaylight.yangtools.yang.common.QName;
34 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
35 import org.slf4j.Logger;
36 import org.slf4j.LoggerFactory;
38 public class AppPeer implements PeerBean {
39 private static final Logger LOG = LoggerFactory.getLogger(AppPeer.class);
40 private static final QName APP_ID_QNAME = QName.create(ApplicationRib.QNAME, "id").intern();
41 private Neighbor currentConfiguration;
42 private BgpAppPeerSingletonService bgpAppPeerSingletonService;
43 private BGPOpenConfigMappingService mappingService;
46 public void start(final RIB rib, final Neighbor neighbor, final BGPOpenConfigMappingService mappingService, final WriteConfiguration configurationWriter) {
47 this.currentConfiguration = neighbor;
48 this.mappingService = mappingService;
49 this.bgpAppPeerSingletonService = new BgpAppPeerSingletonService(rib, createAppRibId(neighbor), neighbor.getNeighborAddress().getIpv4Address(),
54 public void restart(final RIB rib, final BGPOpenConfigMappingService mappingService) {
55 Preconditions.checkState(this.currentConfiguration != null);
56 start(rib, this.currentConfiguration, mappingService, null);
62 this.bgpAppPeerSingletonService.close();
63 } catch (final Exception e) {
64 LOG.warn("Failed to close application peer instance", e);
69 public Boolean containsEqualConfiguration(final Neighbor neighbor) {
70 return Objects.equals(this.currentConfiguration.getKey(), neighbor.getKey())
71 && this.mappingService.isApplicationPeer(neighbor);
74 private static ApplicationRibId createAppRibId(final Neighbor neighbor) {
75 final Config config = neighbor.getConfig();
76 if (config != null && !Strings.isNullOrEmpty(config.getDescription())) {
77 return new ApplicationRibId(config.getDescription());
79 return new ApplicationRibId(neighbor.getNeighborAddress().getIpv4Address().getValue());
82 private final class BgpAppPeerSingletonService implements ClusterSingletonService, AutoCloseable {
83 private final ApplicationPeer applicationPeer;
84 private final DOMDataTreeChangeService dataTreeChangeService;
85 private final ApplicationRibId appRibId;
86 private ClusterSingletonServiceRegistration singletonServiceRegistration;
87 private ListenerRegistration<ApplicationPeer> registration;
88 private final ServiceGroupIdentifier serviceGroupIdentifier;
89 private final WriteConfiguration configurationWriter;
91 BgpAppPeerSingletonService(final RIB rib, final ApplicationRibId appRibId, final Ipv4Address neighborAddress, final WriteConfiguration configurationWriter) {
92 this.applicationPeer = new ApplicationPeer(appRibId, neighborAddress, rib);
93 this.appRibId = appRibId;
94 this.dataTreeChangeService = rib.getService();
95 this.serviceGroupIdentifier = rib.getRibIServiceGroupIdentifier();
96 this.configurationWriter = configurationWriter;
97 LOG.info("Application Peer Singleton Service {} registered", getIdentifier());
98 //this need to be always the last step
99 this.singletonServiceRegistration = rib.registerClusterSingletonService(this);
103 public void close() throws Exception {
104 if (this.singletonServiceRegistration != null) {
105 this.singletonServiceRegistration.close();
106 this.singletonServiceRegistration = null;
111 public void instantiateServiceInstance() {
112 if(this.configurationWriter != null) {
113 this.configurationWriter.apply();
115 LOG.info("Application Peer Singleton Service {} instantiated", getIdentifier());
116 final YangInstanceIdentifier yangIId = YangInstanceIdentifier.builder().node(ApplicationRib.QNAME)
117 .nodeWithKey(ApplicationRib.QNAME, APP_ID_QNAME, this.appRibId.getValue()).node(Tables.QNAME).node(Tables.QNAME).build();
118 this.applicationPeer.instantiateServiceInstance();
119 this.registration = this.dataTreeChangeService
120 .registerDataTreeChangeListener(new DOMDataTreeIdentifier(LogicalDatastoreType.CONFIGURATION, yangIId), this.applicationPeer);
124 public ListenableFuture<Void> closeServiceInstance() {
125 LOG.info("Application Peer Singleton Service {} instance closed", getIdentifier());
126 this.registration.close();
127 this.applicationPeer.close();
128 return Futures.immediateFuture(null);
132 public ServiceGroupIdentifier getIdentifier() {
133 return this.serviceGroupIdentifier;