2 * Copyright (c) 2013 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
8 package org.opendaylight.bgpcep.bgp.topology.provider;
10 import java.util.HashSet;
14 import org.opendaylight.bgpcep.topology.TopologyReference;
15 import org.opendaylight.controller.md.sal.common.api.TransactionStatus;
16 import org.opendaylight.controller.md.sal.common.api.data.DataChangeEvent;
17 import org.opendaylight.controller.md.sal.common.api.data.DataModification;
18 import org.opendaylight.controller.sal.binding.api.data.DataChangeListener;
19 import org.opendaylight.controller.sal.binding.api.data.DataModificationTransaction;
20 import org.opendaylight.controller.sal.binding.api.data.DataProviderService;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.LocRib;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.Route;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.Tables;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.TablesKey;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.AddressFamily;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.SubsequentAddressFamily;
27 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.TopologyId;
28 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
29 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
30 import org.opendaylight.yangtools.yang.binding.DataObject;
31 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
32 import org.opendaylight.yangtools.yang.common.RpcResult;
33 import org.slf4j.Logger;
34 import org.slf4j.LoggerFactory;
36 import com.google.common.base.Preconditions;
37 import com.google.common.util.concurrent.FutureCallback;
38 import com.google.common.util.concurrent.Futures;
39 import com.google.common.util.concurrent.JdkFutureAdapters;
41 public abstract class AbstractTopologyBuilder<T extends Route> implements AutoCloseable, DataChangeListener, LocRIBListener, TopologyReference {
42 private static final InstanceIdentifier<LocRib> locRIBPath = InstanceIdentifier.builder(LocRib.class).toInstance();
43 private static final Logger LOG = LoggerFactory.getLogger(AbstractTopologyBuilder.class);
44 private final InstanceIdentifier<Topology> topology;
45 private final DataProviderService dataProvider;
46 private final Class<T> idClass;
48 protected AbstractTopologyBuilder(final DataProviderService dataProvider, final TopologyId topologyId, final Class<T> idClass) {
49 this.dataProvider = Preconditions.checkNotNull(dataProvider);
50 this.topology = InstanceIdentifier.builder(Topology.class, new TopologyKey(Preconditions.checkNotNull(topologyId))).toInstance();
51 this.idClass = Preconditions.checkNotNull(idClass);
54 public static final InstanceIdentifier<Tables> tableInstanceIdentifier(
55 final Class<? extends AddressFamily> afi, final Class<? extends SubsequentAddressFamily> safi) {
56 return InstanceIdentifier.builder(locRIBPath).child(Tables.class, new TablesKey(afi, safi)).toInstance();
59 protected abstract void createObject(DataModification<InstanceIdentifier<?>, DataObject> trans, InstanceIdentifier<T> id, T value);
60 protected abstract void removeObject(DataModification<InstanceIdentifier<?>, DataObject> trans, InstanceIdentifier<T> id, T value);
62 public final DataProviderService getDataProvider() {
67 public final InstanceIdentifier<Topology> getInstanceIdentifier() {
72 public final void onLocRIBChange(final DataModification<InstanceIdentifier<?>, DataObject> trans,
73 final DataChangeEvent<InstanceIdentifier<?>, DataObject> event) {
75 final Set<InstanceIdentifier<T>> ids = new HashSet<>();
76 for (final InstanceIdentifier<?> i : event.getRemovedOperationalData()) {
77 ids.add(Preconditions.checkNotNull(i.firstIdentifierOf(idClass)));
79 for (final InstanceIdentifier<?> i : event.getUpdatedOperationalData().keySet()) {
80 ids.add(Preconditions.checkNotNull(i.firstIdentifierOf(idClass)));
82 for (final InstanceIdentifier<?> i : event.getCreatedOperationalData().keySet()) {
83 ids.add(Preconditions.checkNotNull(i.firstIdentifierOf(idClass)));
86 final Map<InstanceIdentifier<?>, DataObject> o = event.getOriginalOperationalData();
87 final Map<InstanceIdentifier<?>, DataObject> n = event.getUpdatedOperationalData();
88 for (final InstanceIdentifier<T> i : ids) {
89 final T oldValue = idClass.cast(o.get(i));
90 final T newValue = idClass.cast(n.get(i));
92 LOG.debug("Updating object {} value {} -> {}", i, oldValue, newValue);
93 if (oldValue != null) {
94 removeObject(trans, i, oldValue);
96 if (newValue != null) {
97 createObject(trans, i, newValue);
101 Futures.addCallback(JdkFutureAdapters.listenInPoolThread(trans.commit()),
102 new FutureCallback<RpcResult<TransactionStatus>>() {
104 public void onSuccess(final RpcResult<TransactionStatus> result) {
109 public void onFailure(final Throwable t) {
110 LOG.error("Failed to propagate change by listener {}", AbstractTopologyBuilder.this);
116 public final void close() throws Exception {
117 final DataModificationTransaction trans = dataProvider.beginTransaction();
118 trans.removeOperationalData(getInstanceIdentifier());
119 trans.commit().get();
123 public final void onDataChanged(final DataChangeEvent<InstanceIdentifier<?>, DataObject> change) {
124 final DataModificationTransaction trans = dataProvider.beginTransaction();
127 onLocRIBChange(trans, change);
128 } catch (Exception e) {
129 LOG.info("Data change {} was not completely propagated to listener {}", change, this, e);
132 // FIXME: abort the transaction if it's not committing?