import com.google.common.collect.Iterables;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
+import java.util.AbstractMap.SimpleEntry;
+import java.util.Map.Entry;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import org.opendaylight.bgp.concepts.NextHopUtil;
import org.opendaylight.protocol.bgp.parser.BGPParsingException;
import org.opendaylight.protocol.bgp.parser.BgpTableTypeImpl;
import org.opendaylight.protocol.bgp.parser.spi.AddressFamilyRegistry;
+import org.opendaylight.protocol.bgp.parser.spi.NextHopParserSerializer;
import org.opendaylight.protocol.bgp.parser.spi.NlriParser;
import org.opendaylight.protocol.bgp.parser.spi.NlriRegistry;
import org.opendaylight.protocol.bgp.parser.spi.NlriSerializer;
+import org.opendaylight.protocol.bgp.parser.spi.PeerSpecificParserConstraint;
import org.opendaylight.protocol.bgp.parser.spi.SubsequentAddressFamilyRegistry;
import org.opendaylight.protocol.concepts.AbstractRegistration;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.BgpTableType;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.MpReachNlri;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.MpReachNlriBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.MpUnreachNlri;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.MpUnreachNlriBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpReachNlri;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpReachNlriBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpUnreachNlri;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpUnreachNlriBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.AddressFamily;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.SubsequentAddressFamily;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.CNextHop;
import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
final class SimpleNlriRegistry implements NlriRegistry {
private static final int RESERVED = 1;
+ private static final int NEXT_HOP_LENGHT = 1;
+ private static final String PARSER_NOT_FOUND = "Nlri parser not found for table type {}";
+ private static final Logger LOG = LoggerFactory.getLogger(SimpleNlriRegistry.class);
private final ConcurrentMap<BgpTableType, NlriParser> handlers = new ConcurrentHashMap<>();
private final ConcurrentMap<Class<? extends DataObject>, NlriSerializer> serializers = new ConcurrentHashMap<>();
+ private final ConcurrentMap<BgpTableType, NextHopParserSerializer> nextHopParsers = new ConcurrentHashMap<>();
+ private final ConcurrentMap<Entry<Class<? extends CNextHop>, BgpTableType>, NextHopParserSerializer> nextHopSerializers = new ConcurrentHashMap<>();
private final SubsequentAddressFamilyRegistry safiReg;
private final AddressFamilyRegistry afiReg;
}
private static BgpTableType createKey(final Class<? extends AddressFamily> afi,
- final Class<? extends SubsequentAddressFamily> safi) {
+ final Class<? extends SubsequentAddressFamily> safi) {
Preconditions.checkNotNull(afi);
Preconditions.checkNotNull(safi);
return new BgpTableTypeImpl(afi, safi);
}
- synchronized AutoCloseable registerNlriSerializer(final Class<? extends DataObject> nlriClass, final NlriSerializer serializer){
+ synchronized AutoCloseable registerNlriSerializer(final Class<? extends DataObject> nlriClass, final
+ NlriSerializer serializer){
final NlriSerializer prev = this.serializers.get(nlriClass);
Preconditions.checkState(prev == null, "Serializer already bound to class " + prev);
this.serializers.put(nlriClass, serializer);
+
final Object lock = this;
return new AbstractRegistration() {
@Override
}
synchronized AutoCloseable registerNlriParser(final Class<? extends AddressFamily> afi,
- final Class<? extends SubsequentAddressFamily> safi, final NlriParser parser) {
+ final Class<? extends SubsequentAddressFamily> safi, final NlriParser parser,
+ final NextHopParserSerializer nextHopSerializer, final Class<? extends CNextHop> cNextHopClass,
+ final Class<? extends CNextHop>... cNextHopClassList) {
final BgpTableType key = createKey(afi, safi);
final NlriParser prev = this.handlers.get(key);
Preconditions.checkState(prev == null, "AFI/SAFI is already bound to parser " + prev);
this.handlers.put(key, parser);
+ this.nextHopParsers.put(key,nextHopSerializer);
+
+ if (cNextHopClass != null) {
+ final Entry<Class<? extends CNextHop>, BgpTableType> nhKey = new SimpleEntry<>(cNextHopClass, key);
+ this.nextHopSerializers.put(nhKey, nextHopSerializer);
+ for (final Class<? extends CNextHop> cNextHop : cNextHopClassList) {
+ final Entry<Class<? extends CNextHop>, BgpTableType> nhKeys = new SimpleEntry<>(cNextHop, key);
+ this.nextHopSerializers.put(nhKeys, nextHopSerializer);
+ }
+ }
+
final Object lock = this;
return new AbstractRegistration() {
@Override
protected void removeRegistration() {
synchronized (lock) {
SimpleNlriRegistry.this.handlers.remove(key);
+ SimpleNlriRegistry.this.nextHopParsers.remove(key);
+ if (cNextHopClass != null) {
+ final Entry<Class<? extends CNextHop>, BgpTableType> nhKey = new SimpleEntry<>(cNextHopClass, key);
+ SimpleNlriRegistry.this.nextHopSerializers.remove(nhKey);
+ for (final Class<? extends CNextHop> cNextHop : cNextHopClassList) {
+ final Entry<Class<? extends CNextHop>, BgpTableType> nhKeys = new SimpleEntry<>(cNextHop, key);
+ SimpleNlriRegistry.this.nextHopSerializers.remove(nhKeys);
+ }
+ }
}
}
};
}
@Override
- public MpUnreachNlri parseMpUnreach(final ByteBuf buffer) throws BGPParsingException {
+ public MpUnreachNlri parseMpUnreach(final ByteBuf buffer, final PeerSpecificParserConstraint constraint)
+ throws BGPParsingException {
final MpUnreachNlriBuilder builder = new MpUnreachNlriBuilder();
builder.setAfi(getAfi(buffer));
builder.setSafi(getSafi(buffer));
- final NlriParser parser = this.handlers.get(createKey(builder.getAfi(), builder.getSafi()));
final ByteBuf nlri = buffer.slice();
- parser.parseNlri(nlri, builder);
+ final BgpTableType key = createKey(builder.getAfi(), builder.getSafi());
+ final NlriParser parser = this.handlers.get(key);
+ if (parser == null) {
+ LOG.warn(PARSER_NOT_FOUND, key);
+ } else {
+ parser.parseNlri(nlri, builder, constraint);
+ }
return builder.build();
}
@Override
public void serializeMpReach(final MpReachNlri mpReachNlri, final ByteBuf byteAggregator) {
- byteAggregator.writeShort(this.afiReg.numberForClass(mpReachNlri.getAfi()));
- byteAggregator.writeByte(this.safiReg.numberForClass(mpReachNlri.getSafi()));
-
- final ByteBuf nextHopBuffer = Unpooled.buffer();
- NextHopUtil.serializeNextHop(mpReachNlri.getCNextHop(), nextHopBuffer);
-
- byteAggregator.writeByte(nextHopBuffer.writerIndex());
- byteAggregator.writeBytes(nextHopBuffer);
+ final Class<? extends AddressFamily> afi = mpReachNlri.getAfi();
+ final Class<? extends SubsequentAddressFamily> safi = mpReachNlri.getSafi();
+ byteAggregator.writeShort(this.afiReg.numberForClass(afi));
+ byteAggregator.writeByte(this.safiReg.numberForClass(safi));
+
+ final CNextHop cNextHop = mpReachNlri.getCNextHop();
+ if (cNextHop != null) {
+ final Entry<Class<? extends CNextHop>, BgpTableType> key = new SimpleEntry(
+ cNextHop.getImplementedInterface(), new BgpTableTypeImpl(afi, safi));
+ final NextHopParserSerializer nextHopSerializer = this.nextHopSerializers.get(key);
+ final ByteBuf nextHopBuffer = Unpooled.buffer();
+ nextHopSerializer.serializeNextHop(cNextHop, nextHopBuffer);
+ byteAggregator.writeByte(nextHopBuffer.writerIndex());
+ byteAggregator.writeBytes(nextHopBuffer);
+
+ } else {
+ byteAggregator.writeZero(NEXT_HOP_LENGHT);
+ }
byteAggregator.writeZero(RESERVED);
}
}
@Override
- public MpReachNlri parseMpReach(final ByteBuf buffer) throws BGPParsingException {
+ public MpReachNlri parseMpReach(final ByteBuf buffer, final PeerSpecificParserConstraint constraint)
+ throws BGPParsingException {
final MpReachNlriBuilder builder = new MpReachNlriBuilder();
- builder.setAfi(getAfi(buffer));
- builder.setSafi(getSafi(buffer));
+ final Class<? extends AddressFamily> afi = getAfi(buffer);
+ final Class<? extends SubsequentAddressFamily> safi = getSafi(buffer);
+ builder.setAfi(afi);
+ builder.setSafi(safi);
- final NlriParser parser = this.handlers.get(createKey(builder.getAfi(), builder.getSafi()));
+ final BgpTableType key = createKey(builder.getAfi(), builder.getSafi());
final int nextHopLength = buffer.readUnsignedByte();
- builder.setCNextHop(NextHopUtil.parseNextHop(buffer.readSlice(nextHopLength)));
+ if (nextHopLength != 0) {
+ final NextHopParserSerializer nextHopParser = this.nextHopParsers.get(key);
+ if (nextHopParser != null) {
+ builder.setCNextHop(nextHopParser.parseNextHop(buffer.readSlice(nextHopLength)));
+ } else {
+ builder.setCNextHop(NextHopUtil.parseNextHop(buffer.readSlice(nextHopLength)));
+ LOG.warn("NexHop Parser/Serializer for AFI/SAFI ({},{}) not bound",afi,safi);
+ }
+ }
buffer.skipBytes(RESERVED);
final ByteBuf nlri = buffer.slice();
- parser.parseNlri(nlri, builder);
+ final NlriParser parser = this.handlers.get(key);
+ if (parser == null) {
+ LOG.warn(PARSER_NOT_FOUND, key);
+ } else {
+ parser.parseNlri(nlri, builder, constraint);
+ }
return builder.build();
}
}
Code Review / bgpcep.git / blobdiff