*/
package org.opendaylight.protocol.bgp.mode.impl.add;
+import static com.google.common.base.Verify.verifyNotNull;
+import static org.opendaylight.protocol.bgp.parser.spi.PathIdUtil.NON_PATH_ID;
import static org.opendaylight.protocol.bgp.parser.spi.PathIdUtil.NON_PATH_ID_VALUE;
+import com.google.common.collect.ImmutableList;
import com.google.common.collect.Lists;
-import com.google.common.primitives.UnsignedInteger;
import java.util.ArrayList;
+import java.util.Collections;
import java.util.List;
import java.util.Optional;
-import javax.annotation.concurrent.NotThreadSafe;
-import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
-import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
-import org.opendaylight.protocol.bgp.mode.impl.BGPRouteEntryExportParametersImpl;
-import org.opendaylight.protocol.bgp.mode.spi.AbstractRouteEntry;
-import org.opendaylight.protocol.bgp.rib.spi.BGPPeerTracker;
-import org.opendaylight.protocol.bgp.rib.spi.Peer;
+import java.util.stream.Collectors;
+import org.opendaylight.protocol.bgp.mode.api.RouteEntry;
+import org.opendaylight.protocol.bgp.mode.impl.BestPathStateImpl;
import org.opendaylight.protocol.bgp.rib.spi.RIBSupport;
-import org.opendaylight.protocol.bgp.rib.spi.RouterIds;
-import org.opendaylight.protocol.bgp.rib.spi.entry.RouteEntryDependenciesContainer;
+import org.opendaylight.protocol.bgp.rib.spi.RouterId;
+import org.opendaylight.protocol.bgp.rib.spi.entry.ActualBestPathRoutes;
+import org.opendaylight.protocol.bgp.rib.spi.entry.AdvertizedRoute;
import org.opendaylight.protocol.bgp.rib.spi.entry.RouteEntryInfo;
-import org.opendaylight.protocol.bgp.rib.spi.policy.BGPRouteEntryExportParameters;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.path.attributes.Attributes;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev171207.PeerId;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev171207.Route;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev171207.rib.Tables;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev171207.rib.TablesKey;
+import org.opendaylight.protocol.bgp.rib.spi.entry.StaleBestPathRoute;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev200120.PathId;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.Route;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.rib.Tables;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.rib.tables.Routes;
+import org.opendaylight.yangtools.yang.binding.ChildOf;
+import org.opendaylight.yangtools.yang.binding.ChoiceIn;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.binding.Identifiable;
import org.opendaylight.yangtools.yang.binding.Identifier;
-import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
-import org.opendaylight.yangtools.yang.binding.KeyedInstanceIdentifier;
+import org.opendaylight.yangtools.yang.common.Uint32;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
- * A single route entry inside a route table. Maintains the attributes of
- * from all contributing peers. The information is stored in arrays with a
- * shared map of offsets for peers to allow lookups. This is needed to
- * maintain low memory overhead in face of large number of routes and peers,
- * where individual object overhead becomes the dominating factor.
+ * A single route entry inside a route table. Maintains the attributes from all contributing peers. The information is
+ * stored in arrays with a shared map of offsets for peers to allow lookups. This is needed to maintain low memory
+ * overhead in face of large number of routes and peers, where individual object overhead becomes the dominating factor.
+ *
+ * <p>
+ * This class is NOT thread-safe.
*/
-@NotThreadSafe
-public abstract class AddPathAbstractRouteEntry extends AbstractRouteEntry<AddPathBestPath> {
+public abstract class AddPathAbstractRouteEntry<C extends Routes & DataObject & ChoiceIn<Tables>,
+ S extends ChildOf<? super C>, R extends Route & ChildOf<? super S> & Identifiable<I>, I extends Identifier<R>>
+ implements RouteEntry<C, S, R, I> {
+ private static final class Stale<C extends Routes & DataObject & ChoiceIn<Tables>,
+ S extends ChildOf<? super C>, R extends Route & ChildOf<? super S> & Identifiable<I>,
+ I extends Identifier<R>> extends StaleBestPathRoute<C, S, R, I> {
+ private final List<I> addPathRouteKeyIdentifier;
+ private final List<I> staleRouteKeyIdentifier;
+ private final boolean isNonAddPathBestPathNew;
+
+ Stale(final RIBSupport<C, S, R, I> ribSupport, final String routeKey, final List<PathId> staleRoutesPathIds,
+ final List<PathId> withdrawalRoutePathIds, final boolean isNonAddPathBestPathNew) {
+ super(ribSupport.createRouteListKey(routeKey));
+ this.isNonAddPathBestPathNew = isNonAddPathBestPathNew;
+
+ this.staleRouteKeyIdentifier = staleRoutesPathIds.stream()
+ .map(pathId -> ribSupport.createRouteListKey(pathId, routeKey)).collect(Collectors.toList());
+ if (withdrawalRoutePathIds != null) {
+ this.addPathRouteKeyIdentifier = withdrawalRoutePathIds.stream()
+ .map(pathId -> ribSupport.createRouteListKey(pathId, routeKey)).collect(Collectors.toList());
+ } else {
+ this.addPathRouteKeyIdentifier = Collections.emptyList();
+ }
+ }
- private static final Logger LOG = LoggerFactory.getLogger(AddPathAbstractRouteEntry.class);
- private List<AddPathBestPath> bestPath;
- private List<AddPathBestPath> bestPathRemoved;
- protected OffsetMap offsets = OffsetMap.EMPTY;
- protected Attributes[] values = new Attributes[0];
- protected Long[] pathsId = new Long[0];
- private long pathIdCounter = 0L;
- private boolean oldNonAddPathBestPathTheSame;
- private List<AddPathBestPath> newBestPathToBeAdvertised;
- private List<RemovedPath> removedPaths;
+ @Override
+ public List<I> getStaleRouteKeyIdentifiers() {
+ return this.staleRouteKeyIdentifier;
+ }
+
+ @Override
+ public List<I> getAddPathRouteKeyIdentifiers() {
+ return addPathRouteKeyIdentifier;
+ }
- public AddPathAbstractRouteEntry(final BGPPeerTracker peerTracker) {
- super(peerTracker);
+ @Override
+ public boolean isNonAddPathBestPathNew() {
+ return isNonAddPathBestPathNew;
+ }
}
- private static final class RemovedPath {
- private final RouteKey key;
- private final long pathId;
+ private static final Logger LOG = LoggerFactory.getLogger(AddPathAbstractRouteEntry.class);
+ private static final Uint32[] EMPTY_PATHS_ID = new Uint32[0];
+ private static final Route[] EMPTY_VALUES = new Route[0];
- RemovedPath(final RouteKey key, final long pathId) {
- this.key = key;
- this.pathId = pathId;
- }
+ private RouteKeyOffsets offsets = RouteKeyOffsets.EMPTY;
+ private R[] values = (R[]) EMPTY_VALUES;
+ private Uint32[] pathsId = EMPTY_PATHS_ID;
+ private List<AddPathBestPath> bestPath;
+ private List<AddPathBestPath> bestPathRemoved;
+ private List<AddPathBestPath> newBestPathToBeAdvertised;
+ private List<Uint32> removedPathsId;
- long getPathId() {
- return this.pathId;
- }
+ private long pathIdCounter = 0L;
+ private boolean isNonAddPathBestPathNew;
- UnsignedInteger getRouteId() {
- return this.key.getRouteId();
- }
+ private R createRoute(final RIBSupport<C, S, R, I> ribSup, final String routeKey, final AddPathBestPath path) {
+ final RouteKeyOffsets map = this.offsets;
+ final R route = map.getValue(this.values, map.offsetOf(path.getRouteKey()));
+ return ribSup.createRoute(route, ribSup.createRouteListKey(pathIdObj(path.getPathIdLong()), routeKey),
+ path.getAttributes());
}
- protected int addRoute(final RouteKey key, final Attributes attributes) {
+ @Override
+ public final int addRoute(final RouterId routerId, final Uint32 remotePathId, final R route) {
+ final RouteKey key = new RouteKey(routerId, remotePathId);
int offset = this.offsets.offsetOf(key);
if (offset < 0) {
- final OffsetMap newOffsets = this.offsets.with(key);
+ final RouteKeyOffsets newOffsets = this.offsets.with(key);
offset = newOffsets.offsetOf(key);
- final Attributes[] newAttributes = newOffsets.expand(this.offsets, this.values, offset);
- final Long[] newPathsId = newOffsets.expand(this.offsets, this.pathsId, offset);
- this.values = newAttributes;
+ final R[] newRoute = newOffsets.expand(this.offsets, this.values, offset);
+ final Uint32[] newPathsId = newOffsets.expand(this.offsets, this.pathsId, offset);
+ this.values = newRoute;
this.offsets = newOffsets;
this.pathsId = newPathsId;
- this.offsets.setValue(this.pathsId, offset, ++this.pathIdCounter);
+ this.offsets.setValue(this.pathsId, offset, Uint32.valueOf(++this.pathIdCounter));
}
- this.offsets.setValue(this.values, offset, attributes);
- LOG.trace("Added route from {} attributes {}", key.getRouteId(), attributes);
+ this.offsets.setValue(this.values, offset, route);
+ LOG.trace("Added route {} from {}", route, routerId);
return offset;
}
- /**
- * Remove route.
- *
- * @param key RouteKey of removed route
- * @param offset Offset of removed route
- * @return true if it was the last route
- */
- protected final boolean removeRoute(final RouteKey key, final int offset) {
- final long pathId = this.offsets.getValue(this.pathsId, offset);
- this.values = this.offsets.removeValue(this.values, offset);
- this.pathsId = this.offsets.removeValue(this.pathsId, offset);
+ @Override
+ public final boolean removeRoute(final RouterId routerId, final Uint32 remotePathId) {
+ final RouteKey key = new RouteKey(routerId, remotePathId);
+ final int offset = this.offsets.offsetOf(key);
+ final Uint32 pathId = this.offsets.getValue(this.pathsId, offset);
+ this.values = this.offsets.removeValue(this.values, offset, (R[]) EMPTY_VALUES);
+ this.pathsId = this.offsets.removeValue(this.pathsId, offset, EMPTY_PATHS_ID);
this.offsets = this.offsets.without(key);
- if (this.removedPaths == null) {
- this.removedPaths = new ArrayList<>();
+ if (this.removedPathsId == null) {
+ this.removedPathsId = new ArrayList<>();
}
- this.removedPaths.add(new RemovedPath(key, pathId));
- return isEmpty();
+ this.removedPathsId.add(pathId);
+ return this.offsets.isEmpty();
}
@Override
- public void updateBestPaths(
- final RouteEntryDependenciesContainer entryDependencies,
- final Identifier routeKey,
- final WriteTransaction tx) {
-
- final RIBSupport ribSupport = entryDependencies.getRibSupport();
- final KeyedInstanceIdentifier<Tables, TablesKey> locRibTarget = entryDependencies.getLocRibTableTarget();
- if (this.bestPathRemoved != null) {
- this.bestPathRemoved.forEach(path -> {
- final Identifier newRouteKey = ribSupport.createNewRouteKey(path.getPathId(), routeKey);
- final InstanceIdentifier routeTarget = ribSupport.createRouteIdentifier(locRibTarget, newRouteKey);
- LOG.debug("Delete route from LocRib {}", routeTarget);
- tx.delete(LogicalDatastoreType.OPERATIONAL, routeTarget);
- });
- this.bestPathRemoved = null;
- }
- if (this.removedPaths != null) {
- this.removedPaths.forEach(removedPath -> {
- final Identifier routeKeyAddPath
- = ribSupport.createNewRouteKey(removedPath.getPathId(), routeKey);
- final Identifier routeKeyNonAddPath = ribSupport.createNewRouteKey(NON_PATH_ID_VALUE, routeKey);
- fillAdjRibsOut(true, null, null, null,
- routeKeyNonAddPath, routeKeyAddPath,
- RouterIds.createPeerId(removedPath.getRouteId()),
- entryDependencies.getLocalTablesKey(), entryDependencies, tx);
- });
- this.removedPaths = null;
+ public final Optional<StaleBestPathRoute<C, S, R, I>> removeStalePaths(final RIBSupport<C, S, R, I> ribSupport,
+ final String routeKey) {
+ final List<PathId> stalePaths;
+ if (bestPathRemoved != null && !bestPathRemoved.isEmpty()) {
+ stalePaths = bestPathRemoved.stream().map(AddPathBestPath::getPathIdLong)
+ .map(AddPathAbstractRouteEntry::pathIdObj).collect(Collectors.toList());
+ bestPathRemoved = null;
+ } else {
+ stalePaths = Collections.emptyList();
}
- if (this.newBestPathToBeAdvertised != null) {
- this.newBestPathToBeAdvertised.forEach(path -> addPathToDataStore(entryDependencies, path,
- isFirstBestPath(this.bestPath.indexOf(path)), routeKey, tx));
- this.newBestPathToBeAdvertised = null;
+ List<PathId> removedPaths;
+ if (removedPathsId != null) {
+ removedPaths = Lists.transform(removedPathsId, AddPathAbstractRouteEntry::pathIdObj);
+ this.removedPathsId = null;
+ } else {
+ removedPaths = Collections.emptyList();
}
+
+ return stalePaths.isEmpty() && removedPaths.isEmpty() ? Optional.empty()
+ : Optional.of(new Stale<>(ribSupport, routeKey, stalePaths, removedPaths, isNonAddPathBestPathNew));
}
@Override
- public void initializeBestPaths(final RouteEntryDependenciesContainer entryDependencies,
- final RouteEntryInfo entryInfo, final WriteTransaction tx) {
- if (this.bestPath != null) {
- final Peer toPeer = entryInfo.getToPeer();
- final TablesKey localTk = entryDependencies.getLocalTablesKey();
- final boolean destPeerSupAddPath = toPeer.supportsAddPathSupported(localTk);
- for (final AddPathBestPath path : this.bestPath) {
- if (!filterRoutes(path.getPeerId(), toPeer, localTk)) {
- continue;
- }
- writeRoutePath(entryInfo, destPeerSupAddPath, path, localTk, entryDependencies, tx);
- }
+ public final List<AdvertizedRoute<C, S, R, I>> newBestPaths(final RIBSupport<C, S, R, I> ribSupport,
+ final String routeKey) {
+ if (this.newBestPathToBeAdvertised == null || this.newBestPathToBeAdvertised.isEmpty()) {
+ return Collections.emptyList();
}
- }
-
- @SuppressWarnings("unchecked")
- private void writeRoutePath(final RouteEntryInfo entryInfo,
- final boolean destPeerSupAddPath, final AddPathBestPath path,
- final TablesKey localTK, final RouteEntryDependenciesContainer routeEntryDep, final WriteTransaction tx) {
- final Identifier routeKey = entryInfo.getRouteKey();
- final RIBSupport ribSupport = routeEntryDep.getRibSupport();
- final BGPRouteEntryExportParameters baseExp = new BGPRouteEntryExportParametersImpl(
- this.peerTracker.getPeer(path.getPeerId()), entryInfo.getToPeer());
- final Optional<Attributes> effAttrib = routeEntryDep.getRoutingPolicies()
- .applyExportPolicies(baseExp, path.getAttributes());
-
- Identifier newRouteKey = ribSupport.createNewRouteKey(destPeerSupAddPath
- ? path.getPathId() : NON_PATH_ID_VALUE, routeKey);
- final Peer toPeer = entryInfo.getToPeer();
- final Route route = createRoute(ribSupport, newRouteKey, destPeerSupAddPath
- ? path.getPathId() : NON_PATH_ID_VALUE, path);
- InstanceIdentifier ribOutIId = ribSupport.createRouteIdentifier(toPeer.getRibOutIId(localTK), newRouteKey);
- if (effAttrib.isPresent() && route != null) {
- LOG.debug("Write route {} to peer AdjRibsOut {}", route, toPeer.getPeerId());
- tx.put(LogicalDatastoreType.OPERATIONAL, ribOutIId, route);
- tx.put(LogicalDatastoreType.OPERATIONAL, ribOutIId.child(Attributes.class), effAttrib.get());
+ final List<AdvertizedRoute<C, S, R, I>> advertized = new ArrayList<>(newBestPathToBeAdvertised.size());
+ final AddPathBestPath firstBestPath = this.bestPath.isEmpty() ? null : this.bestPath.get(0);
+ for (final AddPathBestPath path : this.newBestPathToBeAdvertised) {
+ final R routeAddPath = createRoute(ribSupport, routeKey, path);
+ // FIXME: can we use identity check here?
+ final boolean isFirstBestPath = firstBestPath != null && firstBestPath.equals(path);
+ final AdvertizedRoute<C, S, R, I> adv = new AdvertizedRoute<>(ribSupport, isFirstBestPath,
+ routeAddPath, path.getAttributes(), path.getPeerId(), path.isDepreferenced());
+ advertized.add(adv);
}
+ this.newBestPathToBeAdvertised = null;
+ return advertized;
}
- private void addPathToDataStore(
- final RouteEntryDependenciesContainer entryDep,
- final AddPathBestPath path,
- final boolean isFirstBestPath,
- final Identifier routeKey,
- final WriteTransaction tx) {
- final RIBSupport ribSup = entryDep.getRibSupport();
- final Identifier routeKeyAddPath = ribSup.createNewRouteKey(path.getPathId(), routeKey);
- final Identifier routeKeyAddNonPath = ribSup.createNewRouteKey(NON_PATH_ID_VALUE, routeKey);
- final Route routeAddPath = createRoute(ribSup, routeKeyAddPath, path.getPathId(), path);
- final Route routeNonAddPath = createRoute(ribSup, routeKeyAddNonPath, NON_PATH_ID_VALUE, path);
-
- final KeyedInstanceIdentifier<Tables, TablesKey> locRibTarget = entryDep.getLocRibTableTarget();
- final InstanceIdentifier routeTarget = ribSup.createRouteIdentifier(locRibTarget, routeKeyAddPath);
- LOG.debug("Write route to LocRib {}", routeAddPath);
- tx.put(LogicalDatastoreType.OPERATIONAL, routeTarget, routeAddPath);
-
- fillAdjRibsOut(isFirstBestPath, path.getAttributes(), routeNonAddPath, routeAddPath, routeKeyAddNonPath,
- routeKeyAddPath, path.getPeerId(), entryDep.getLocalTablesKey(), entryDep, tx);
- }
-
- @SuppressWarnings("unchecked")
- private void fillAdjRibsOut(
- final boolean isFirstBestPath,
- final Attributes attributes,
- final Route routeNonAddPath,
- final Route routeAddPath,
- final Identifier routeKeyAddNonPath,
- final Identifier routeKeyAddPath,
- final PeerId fromPeerId,
- final TablesKey localTK,
- final RouteEntryDependenciesContainer routeEntryDep,
- final WriteTransaction tx) {
- /*
- * We need to keep track of routers and populate adj-ribs-out, too. If we do not, we need to
- * expose from which client a particular route was learned from in the local RIB, and have
- * the listener perform filtering.
- *
- * We walk the policy set in order to minimize the amount of work we do for multiple peers:
- * if we have two eBGP peers, for example, there is no reason why we should perform the translation
- * multiple times.
- */
- final RIBSupport ribSupport = routeEntryDep.getRibSupport();
- for (final Peer toPeer : this.peerTracker.getPeers()) {
- if (!filterRoutes(fromPeerId, toPeer, localTK)) {
- continue;
- }
- final boolean destPeerSupAddPath = toPeer.supportsAddPathSupported(localTK);
-
- if (toPeer.getPeerId().getValue().equals("bgp://127.0.0.5")) {
- LOG.debug("Write route {} to peer AdjRibsOut {}", toPeer.getPeerId());
- }
- if (peersSupportsAddPathOrIsFirstBestPath(destPeerSupAddPath, isFirstBestPath)) {
-
- Optional<Attributes> effAttrib = Optional.empty();
- final Peer fromPeer = this.peerTracker.getPeer(fromPeerId);
-
- if (fromPeer != null && attributes != null) {
- final BGPRouteEntryExportParameters baseExp
- = new BGPRouteEntryExportParametersImpl(fromPeer, toPeer);
- effAttrib = routeEntryDep.getRoutingPolicies()
- .applyExportPolicies(baseExp, attributes);
- }
- Route newRoute = null;
- InstanceIdentifier ribOutRoute = null;
- if (destPeerSupAddPath) {
- newRoute = routeAddPath;
- ribOutRoute
- = ribSupport.createRouteIdentifier(toPeer.getRibOutIId(localTK), routeKeyAddPath);
- } else if (!this.oldNonAddPathBestPathTheSame) {
- ribOutRoute
- = ribSupport.createRouteIdentifier(toPeer.getRibOutIId(localTK), routeKeyAddNonPath);
- newRoute = routeNonAddPath;
- }
-
- if (effAttrib.isPresent() && newRoute != null) {
- LOG.debug("Write route {} to peer AdjRibsOut {}", newRoute, toPeer.getPeerId());
- tx.put(LogicalDatastoreType.OPERATIONAL, ribOutRoute, newRoute);
- tx.put(LogicalDatastoreType.OPERATIONAL, ribOutRoute.child(Attributes.class), effAttrib.get());
- } else if (ribOutRoute != null) {
- LOG.trace("Removing {} from transaction for peer {}", ribOutRoute, toPeer.getPeerId());
- tx.delete(LogicalDatastoreType.OPERATIONAL, ribOutRoute);
- }
- }
+ @Override
+ public final List<ActualBestPathRoutes<C, S, R, I>> actualBestPaths(final RIBSupport<C, S, R, I> ribSupport,
+ final RouteEntryInfo entryInfo) {
+ if (this.bestPath == null || this.bestPath.isEmpty()) {
+ return Collections.emptyList();
}
+ final List<ActualBestPathRoutes<C, S, R, I>> preexistentRoutes = new ArrayList<>();
+ for (final AddPathBestPath path : this.bestPath) {
+ final R route = createRoute(ribSupport, entryInfo.getRouteKey(), path);
+ final ActualBestPathRoutes<C, S, R, I> adv = new ActualBestPathRoutes<>(ribSupport, route, path.getPeerId(),
+ path.getAttributes(), path.isDepreferenced());
+ preexistentRoutes.add(adv);
+ }
+ return preexistentRoutes;
}
-
- protected final OffsetMap getOffsets() {
- return this.offsets;
- }
-
- public final boolean isEmpty() {
- return this.offsets.isEmpty();
+ @Override
+ public final boolean selectBest(final long localAs) {
+ final int size;
+ return isBestPathNew((size = offsets.size()) == 0 ? ImmutableList.of() : selectBest(localAs, size));
}
- private void selectBest(final RouteKey key, final AddPathSelector selector) {
- final int offset = this.offsets.offsetOf(key);
- final Attributes attributes = this.offsets.getValue(this.values, offset);
- final long pathId = this.offsets.getValue(this.pathsId, offset);
- LOG.trace("Processing router key {} attributes {}", key, attributes);
- selector.processPath(attributes, key, offset, pathId);
- }
+ protected abstract ImmutableList<AddPathBestPath> selectBest(long localAs, int size);
/**
- * Process best path selection.
+ * Process a specific route offset into specified selector.
*
- * @param localAs The local autonomous system number
- * @param keyList List of RouteKey
- * @return the best path inside offset map passed
+ * @param selector selector to update
+ * @param offset offset to process
*/
- protected AddPathBestPath selectBest(final long localAs, final List<RouteKey> keyList) {
- /*
- * FIXME: optimize flaps by making sure we consider stability of currently-selected route.
- */
- final AddPathSelector selector = new AddPathSelector(localAs);
- Lists.reverse(keyList).forEach(key -> selectBest(key, selector));
- LOG.trace("Best path selected {}", this.bestPath);
- return selector.result();
+ protected final void processOffset(final AddPathSelector selector, final int offset) {
+ final RouteKey key = offsets.getKey(offset);
+ final R route = offsets.getValue(values, offset);
+ final Uint32 pathId = offsets.getValue(pathsId, offset);
+ LOG.trace("Processing router key {} route {}", key, route);
+ selector.processPath(route.getAttributes(), key, offset, pathId);
}
- private static boolean isFirstBestPath(final int bestPathPosition) {
- return bestPathPosition == 0;
+ protected final AddPathBestPath bestPathAt(final int offset) {
+ final Route route = verifyNotNull(offsets.getValue(values, offset));
+ return new AddPathBestPath(new BestPathStateImpl(route.getAttributes()), offsets.getKey(offset),
+ offsets.getValue(pathsId, offset), offset);
}
- private static boolean peersSupportsAddPathOrIsFirstBestPath(final boolean peerSupportsAddPath,
- final boolean isFirstBestPath) {
- return !(!peerSupportsAddPath && !isFirstBestPath);
- }
-
- protected boolean isBestPathNew(final List<AddPathBestPath> newBestPathList) {
- this.oldNonAddPathBestPathTheSame = isNonAddPathBestPathTheSame(newBestPathList);
+ private boolean isBestPathNew(final ImmutableList<AddPathBestPath> newBestPathList) {
+ this.isNonAddPathBestPathNew = !isNonAddPathBestPathTheSame(newBestPathList);
filterRemovedPaths(newBestPathList);
if (this.bestPathRemoved != null && !this.bestPathRemoved.isEmpty()
|| newBestPathList != null
&& !newBestPathList.equals(this.bestPath)) {
- this.newBestPathToBeAdvertised = new ArrayList<>(newBestPathList);
if (this.bestPath != null) {
+ this.newBestPathToBeAdvertised = new ArrayList<>(newBestPathList);
this.newBestPathToBeAdvertised.removeAll(this.bestPath);
+ } else {
+ this.newBestPathToBeAdvertised = newBestPathList;
}
this.bestPath = newBestPathList;
LOG.trace("Actual Best {}, removed best {}", this.bestPath, this.bestPathRemoved);
present.ifPresent(addPathBestPath -> this.bestPathRemoved.remove(oldBest));
});
}
+
+ private static PathId pathIdObj(final Uint32 pathId) {
+ return NON_PATH_ID_VALUE.equals(pathId) ? NON_PATH_ID : new PathId(pathId);
+ }
}
Code Review / bgpcep.git / blobdiff