- @Override
- public void parseAttribute(final byte[] bytes, final PathAttributesBuilder builder) {
- builder.setCNextHop(new Ipv4NextHopCaseBuilder().setIpv4NextHop(
- new Ipv4NextHopBuilder().setGlobal(Ipv4Util.addressForBytes(bytes)).build()).build());
- }
-}
\ No newline at end of file
+ public static final int TYPE = 3;
+
+ @Override
+ public void parseAttribute(final ByteBuf buffer, final PathAttributesBuilder builder) {
+ Preconditions.checkArgument(buffer.readableBytes() == Ipv4Util.IP4_LENGTH, "Length of byte array for NEXT_HOP should be %s, but is %s", buffer.readableBytes(), Ipv4Util.IP4_LENGTH);
+ builder.setCNextHop(new Ipv4NextHopCaseBuilder().setIpv4NextHop(
+ new Ipv4NextHopBuilder().setGlobal(Ipv4Util.addressForBytes(ByteArray.readAllBytes(buffer))).build()).build());
+ }
+
+ @Override
+ public void serializeAttribute(DataObject attribute, ByteBuf byteAggregator) {
+ PathAttributes pathAttributes = (PathAttributes) attribute;
+ CNextHop cNextHop = pathAttributes.getCNextHop();
+ if (cNextHop == null) {
+ return;
+ }
+ ByteBuf nextHopBuffer = Unpooled.buffer();
+ if (cNextHop instanceof Ipv4NextHopCase) {
+ byteAggregator.writeByte(AttributeFlags.TRANSITIVE);
+ byteAggregator.writeByte(TYPE);
+ Ipv4NextHopCase nextHop = (Ipv4NextHopCase) cNextHop;
+ nextHopBuffer.writeBytes(Ipv4Util.bytesForAddress(nextHop.getIpv4NextHop().getGlobal()));
+ byteAggregator.writeByte(nextHopBuffer.writerIndex());
+ byteAggregator.writeBytes(nextHopBuffer);
+ } else if (cNextHop instanceof Ipv6NextHopCase) {
+ byteAggregator.writeByte(AttributeFlags.TRANSITIVE);
+ byteAggregator.writeByte(TYPE);
+ Ipv6NextHopCase nextHop = (Ipv6NextHopCase) cNextHop;
+ if (nextHop.getIpv6NextHop().getGlobal() != null) {
+ nextHopBuffer.writeBytes(Ipv6Util.bytesForAddress(nextHop.getIpv6NextHop().getGlobal()));
+ }
+ if (nextHop.getIpv6NextHop().getLinkLocal() != null) {
+ nextHopBuffer.writeBytes(Ipv6Util.bytesForAddress(nextHop.getIpv6NextHop().getLinkLocal()));
+ }
+ byteAggregator.writeByte(nextHopBuffer.writerIndex());
+ byteAggregator.writeBytes(nextHopBuffer);
+ }
+
+ }
+}