package org.opendaylight.protocol.bgp.rib.impl;
import com.google.common.base.Preconditions;
+import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
+import java.util.List;
import javax.annotation.Nonnull;
import javax.annotation.concurrent.NotThreadSafe;
import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataTreeChangeListener;
+import org.opendaylight.controller.md.sal.dom.api.ClusteredDOMDataTreeChangeListener;
import org.opendaylight.controller.md.sal.dom.api.DOMDataTreeChangeService;
import org.opendaylight.controller.md.sal.dom.api.DOMDataTreeIdentifier;
-import org.opendaylight.protocol.bgp.rib.impl.spi.RIBSupportContextRegistry;
+import org.opendaylight.protocol.bgp.rib.impl.spi.Codecs;
+import org.opendaylight.protocol.bgp.rib.impl.spi.CodecsRegistry;
+import org.opendaylight.protocol.bgp.rib.impl.stats.UnsignedInt32Counter;
+import org.opendaylight.protocol.bgp.rib.spi.IdentifierUtils;
import org.opendaylight.protocol.bgp.rib.spi.RIBSupport;
import org.opendaylight.protocol.bgp.rib.spi.RibSupportUtils;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv4.routes.ipv4.routes.Ipv4Route;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.Update;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.UpdateBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.Attributes;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.update.message.NlriBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.update.message.WithdrawnRoutesBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.PeerId;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.bgp.rib.rib.Peer;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.bgp.rib.rib.peer.AdjRibOut;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.Tables;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.TablesKey;
+import org.opendaylight.yangtools.concepts.ListenerRegistration;
+import org.opendaylight.yangtools.yang.common.QName;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
* performs transcoding to BA form (message) and sends it down the channel.
*/
@NotThreadSafe
-final class AdjRibOutListener implements DOMDataTreeChangeListener {
+final class AdjRibOutListener implements ClusteredDOMDataTreeChangeListener {
private static final Logger LOG = LoggerFactory.getLogger(AdjRibOutListener.class);
+ static final QName PREFIX_QNAME = QName.create(Ipv4Route.QNAME, "prefix").intern();
+ private final YangInstanceIdentifier.NodeIdentifier routeKeyLeaf = new YangInstanceIdentifier.NodeIdentifier(PREFIX_QNAME);
+
private final ChannelOutputLimiter session;
- private final RIBSupportContextRegistry registry;
- private final RIBSupportContextImpl context;
+ private final Codecs codecs;
private final RIBSupport support;
+ private final boolean mpSupport;
+ private final ListenerRegistration<AdjRibOutListener> registerDataTreeChangeListener;
+ private final UnsignedInt32Counter routeCounter;
- private AdjRibOutListener(final TablesKey tablesKey, final YangInstanceIdentifier ribId, final DOMDataTreeChangeService service, final RIBSupportContextRegistry registry, final ChannelOutputLimiter session) {
- this.registry = Preconditions.checkNotNull(registry);
+ private AdjRibOutListener(final PeerId peerId, final TablesKey tablesKey, final YangInstanceIdentifier ribId,
+ final CodecsRegistry registry, final RIBSupport support, final DOMDataTreeChangeService service,
+ final ChannelOutputLimiter session, final boolean mpSupport, final UnsignedInt32Counter routeCounter) {
this.session = Preconditions.checkNotNull(session);
- this.context = (RIBSupportContextImpl) this.registry.getRIBSupportContext(tablesKey);
- this.support = this.context.getRibSupport();
- final YangInstanceIdentifier adjRibOutId = ribId.node(Peer.QNAME).node(Peer.QNAME).node(AdjRibOut.QNAME).node(Tables.QNAME).node(RibSupportUtils.toYangTablesKey(tablesKey));
- service.registerDataTreeChangeListener(new DOMDataTreeIdentifier(LogicalDatastoreType.OPERATIONAL, adjRibOutId), this);
+ this.support = Preconditions.checkNotNull(support);
+ this.codecs = registry.getCodecs(this.support);
+ this.mpSupport = mpSupport;
+ final YangInstanceIdentifier adjRibOutId = ribId.node(Peer.QNAME).node(IdentifierUtils.domPeerId(peerId)).node(AdjRibOut.QNAME).node(Tables.QNAME).node(RibSupportUtils.toYangTablesKey(tablesKey));
+ this.registerDataTreeChangeListener = service.registerDataTreeChangeListener(new DOMDataTreeIdentifier(LogicalDatastoreType.OPERATIONAL, adjRibOutId), this);
+ this.routeCounter = routeCounter;
}
- static AdjRibOutListener create(@Nonnull final TablesKey tablesKey, @Nonnull final YangInstanceIdentifier ribId, @Nonnull final DOMDataTreeChangeService service, @Nonnull final RIBSupportContextRegistry registry, @Nonnull final ChannelOutputLimiter session) {
- return new AdjRibOutListener(tablesKey, ribId, service, registry, session);
+ static AdjRibOutListener create(@Nonnull final PeerId peerId, @Nonnull final TablesKey tablesKey, @Nonnull final YangInstanceIdentifier ribId,
+ @Nonnull final CodecsRegistry registry, @Nonnull final RIBSupport support, @Nonnull final DOMDataTreeChangeService service,
+ @Nonnull final ChannelOutputLimiter session, @Nonnull final boolean mpSupport, @Nonnull final UnsignedInt32Counter routeCounter
+ ) {
+ return new AdjRibOutListener(peerId, tablesKey, ribId, registry, support, service, session, mpSupport, routeCounter);
}
@Override
public void onDataTreeChanged(final Collection<DataTreeCandidate> changes) {
LOG.debug("Data change received for AdjRibOut {}", changes);
for (final DataTreeCandidate tc : changes) {
+ LOG.trace("Change {} type {}", tc.getRootNode(), tc.getRootNode().getModificationType());
for (final DataTreeCandidateNode child : tc.getRootNode().getChildNodes()) {
- for (final DataTreeCandidateNode route : this.context.getRibSupport().changedRoutes(child)) {
- final Update update;
-
- switch (route.getModificationType()) {
- case UNMODIFIED:
- LOG.debug("Skipping unmodified route {}", route.getIdentifier());
- continue;
- case DELETE:
- // FIXME: we can batch deletions into a single batch
- update = withdraw((MapEntryNode) route.getDataBefore().get());
- break;
- case SUBTREE_MODIFIED:
- case WRITE:
- update = advertise((MapEntryNode) route.getDataAfter().get());
- break;
- default:
- LOG.warn("Ignoring unhandled modification type {}", route.getModificationType());
- continue;
- }
-
- LOG.debug("Writing update {}", update);
- this.session.write(update);
- }
+ processSupportedFamilyRoutes(child);
}
}
this.session.flush();
}
+ private void processSupportedFamilyRoutes(final DataTreeCandidateNode child) {
+ for (final DataTreeCandidateNode route : this.support.changedRoutes(child)) {
+ processRouteChange(route);
+ }
+ }
+
+ private void processRouteChange(final DataTreeCandidateNode route) {
+ final Update update;
+ switch (route.getModificationType()) {
+ case UNMODIFIED:
+ LOG.debug("Skipping unmodified route {}", route.getIdentifier());
+ return;
+ case DELETE:
+ case DISAPPEARED:
+ // FIXME: we can batch deletions into a single batch
+ update = withdraw((MapEntryNode) route.getDataBefore().get());
+ LOG.debug("Withdrawing routes {}", update);
+ break;
+ case APPEARED:
+ case SUBTREE_MODIFIED:
+ case WRITE:
+ update = advertise((MapEntryNode) route.getDataAfter().get());
+ LOG.debug("Advertising routes {}", update);
+ break;
+ default:
+ LOG.warn("Ignoring unhandled modification type {}", route.getModificationType());
+ return;
+ }
+ this.session.write(update);
+ }
+
private Attributes routeAttributes(final MapEntryNode route) {
if (LOG.isDebugEnabled()) {
LOG.debug("AdjRibOut parsing route {}", NormalizedNodes.toStringTree(route));
}
-
final ContainerNode advertisedAttrs = (ContainerNode) NormalizedNodes.findNode(route, this.support.routeAttributesIdentifier()).orNull();
- return this.context.deserializeAttributes(advertisedAttrs);
+ return this.codecs.deserializeAttributes(advertisedAttrs);
}
private Update withdraw(final MapEntryNode route) {
- return this.support.buildUpdate(Collections.singleton(route), Collections.<MapEntryNode>emptyList(), routeAttributes(route));
+ this.routeCounter.decreaseCount();
+ if (!this.mpSupport) {
+ return buildUpdate(Collections.<MapEntryNode>emptyList(), Collections.singleton(route), routeAttributes(route));
+ }
+ return this.support.buildUpdate(Collections.<MapEntryNode>emptyList(), Collections.singleton(route), routeAttributes(route));
}
private Update advertise(final MapEntryNode route) {
- return this.support.buildUpdate(Collections.<MapEntryNode>emptyList(), Collections.singleton(route), routeAttributes(route));
+ this.routeCounter.increaseCount();
+ if (!this.mpSupport) {
+ return buildUpdate(Collections.singleton(route), Collections.<MapEntryNode>emptyList(), routeAttributes(route));
+ }
+ return this.support.buildUpdate(Collections.singleton(route), Collections.<MapEntryNode>emptyList(), routeAttributes(route));
+ }
+
+ private Update buildUpdate(@Nonnull final Collection<MapEntryNode> advertised, @Nonnull final Collection<MapEntryNode> withdrawn, @Nonnull final Attributes attr) {
+ final UpdateBuilder ub = new UpdateBuilder()
+ .setWithdrawnRoutes(new WithdrawnRoutesBuilder().setWithdrawnRoutes(extractPrefixes(withdrawn)).build())
+ .setNlri(new NlriBuilder().setNlri(extractPrefixes(advertised)).build());
+ ub.setAttributes(attr);
+ return ub.build();
+ }
+
+ private List<Ipv4Prefix> extractPrefixes(final Collection<MapEntryNode> routes) {
+ final List<Ipv4Prefix> prefs = new ArrayList<>(routes.size());
+ for (final MapEntryNode ipv4Route : routes) {
+ final String prefix = (String) ipv4Route.getChild(this.routeKeyLeaf).get().getValue();
+ prefs.add(new Ipv4Prefix(prefix));
+ }
+ return prefs;
+ }
+
+ public void close() {
+ this.registerDataTreeChangeListener.close();
+ }
+
+ boolean isMpSupported() {
+ return this.mpSupport;
}
}