2 * Copyright (c) 2015 Cisco Systems, Inc. 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.lispflowmapping.implementation.mdsal;
10 import java.util.ArrayList;
11 import java.util.Collection;
12 import java.util.List;
13 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
14 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
15 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification.ModificationType;
16 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
17 import org.opendaylight.controller.md.sal.binding.api.NotificationPublishService;
18 import org.opendaylight.lispflowmapping.interfaces.mapcache.IMappingSystem;
19 import org.opendaylight.lispflowmapping.lisp.type.MappingData;
20 import org.opendaylight.lispflowmapping.lisp.util.LispAddressUtil;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.eid.container.Eid;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.locatorrecords.LocatorRecord;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.locatorrecords.LocatorRecordBuilder;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.mapping.record.container.MappingRecord;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.mapping.record.container.MappingRecordBuilder;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mappingservice.rev150906.MappingDatabase;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mappingservice.rev150906.MappingOrigin;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mappingservice.rev150906.db.instance.Mapping;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mappingservice.rev150906.db.instance.MappingBuilder;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mappingservice.rev150906.mapping.database.VirtualNetworkIdentifier;
31 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
32 import org.slf4j.Logger;
33 import org.slf4j.LoggerFactory;
36 * DataListener for all Mapping modification events.
38 * @author Lorand Jakab
39 * @author Florin Coras
42 public class MappingDataListener extends AbstractDataListener<Mapping> {
43 private static final Logger LOG = LoggerFactory.getLogger(MappingDataListener.class);
44 private IMappingSystem mapSystem;
45 private NotificationPublishService notificationPublishService;
46 private boolean isMaster = false;
48 public MappingDataListener(DataBroker broker, IMappingSystem msmr, NotificationPublishService nps) {
50 setMappingSystem(msmr);
51 setNotificationProviderService(nps);
52 setPath(InstanceIdentifier.create(MappingDatabase.class).child(VirtualNetworkIdentifier.class)
53 .child(Mapping.class));
54 LOG.trace("Registering Mapping listener.");
55 registerDataChangeListener();
58 public void setNotificationProviderService(NotificationPublishService nps) {
59 this.notificationPublishService = nps;
62 void setMappingSystem(IMappingSystem msmr) {
63 this.mapSystem = msmr;
67 public void onDataTreeChanged(Collection<DataTreeModification<Mapping>> changes) {
68 for (DataTreeModification<Mapping> change : changes) {
69 final DataObjectModification<Mapping> mod = change.getRootNode();
71 if (ModificationType.DELETE == mod.getModificationType()) {
72 // Process deleted mappings
74 final Mapping mapping = mod.getDataBefore();
76 // Only treat mapping changes caused by Northbound, since Southbound changes are already handled
77 // before being persisted, except for cluster slaves
78 if (mapping.getOrigin() == MappingOrigin.Southbound && mapSystem.isMaster()) {
82 LOG.trace("Received deleted data");
83 LOG.trace("Key: {}", change.getRootPath().getRootIdentifier());
84 LOG.trace("Value: {}", mapping);
86 final Mapping convertedMapping = convertToBinaryIfNecessary(mapping);
88 mapSystem.removeMapping(convertedMapping.getOrigin(), convertedMapping.getMappingRecord().getEid());
90 } else if (ModificationType.SUBTREE_MODIFIED == mod.getModificationType() || ModificationType.WRITE == mod
91 .getModificationType()) {
92 final Mapping mapping = mod.getDataAfter();
94 // Only treat mapping changes caused by Northbound, since Southbound changes are already handled
95 // before being persisted, except for cluster slaves XXX separate NB and SB to avoid ignoring
97 if (mapping.getOrigin() == MappingOrigin.Southbound && mapSystem.isMaster()) {
101 final Mapping convertedMapping = convertToBinaryIfNecessary(mapping);
102 Eid convertedEid = convertedMapping.getMappingRecord().getEid();
104 if (ModificationType.SUBTREE_MODIFIED == mod.getModificationType()) {
105 LOG.trace("Received update data");
106 LOG.trace("Key: {}", change.getRootPath().getRootIdentifier());
107 LOG.trace("Value: {}", mapping);
108 mapSystem.updateMapping(convertedMapping.getOrigin(), convertedEid,
109 new MappingData(convertedMapping.getMappingRecord()));
111 LOG.trace("Received write data");
112 LOG.trace("Key: {}", change.getRootPath().getRootIdentifier());
113 LOG.trace("Value: {}", mapping);
114 mapSystem.addMapping(convertedMapping.getOrigin(), convertedEid,
115 new MappingData(convertedMapping.getMappingRecord()));
118 LOG.warn("Ignoring unhandled modification type {}", mod.getModificationType());
123 private static Mapping convertToBinaryIfNecessary(Mapping mapping) {
124 MappingRecord originalRecord = mapping.getMappingRecord();
125 List<LocatorRecord> originalLocators = originalRecord.getLocatorRecord();
127 List<LocatorRecord> convertedLocators = null;
128 if (originalLocators != null) {
129 // If convertedLocators is non-null, while originalLocators is also non-null, conversion has been made
130 convertedLocators = convertToBinaryIfNecessary(originalLocators);
133 if (LispAddressUtil.addressNeedsConversionToBinary(originalRecord.getEid().getAddress())
134 || (originalLocators != null && convertedLocators != null)) {
135 MappingRecordBuilder mrb = new MappingRecordBuilder(originalRecord);
136 mrb.setEid(LispAddressUtil.convertToBinary(originalRecord.getEid()));
137 if (convertedLocators != null) {
138 mrb.setLocatorRecord(convertedLocators);
140 return new MappingBuilder(mapping).setMappingRecord(mrb.build()).build();
145 private static List<LocatorRecord> convertToBinaryIfNecessary(List<LocatorRecord> originalLocators) {
146 List<LocatorRecord> convertedLocators = null;
147 for (LocatorRecord record : originalLocators) {
148 if (LispAddressUtil.addressNeedsConversionToBinary(record.getRloc().getAddress())) {
149 LocatorRecordBuilder lrb = new LocatorRecordBuilder(record);
150 lrb.setRloc(LispAddressUtil.convertToBinary(record.getRloc()));
151 if (convertedLocators == null) {
152 convertedLocators = new ArrayList<LocatorRecord>();
154 convertedLocators.add(lrb.build());
157 if (convertedLocators != null) {
158 return convertedLocators;
160 return originalLocators;