@Override
public OFBsnGentableEntryAdd readFrom(ChannelBuffer bb) throws OFParseError {
int start = bb.readerIndex();
// fixed value property version == 4
byte version = bb.readByte();
if (version != (byte) 0x4)
throw new OFParseError("Wrong version: Expected=OFVersion.OF_13(4), got=" + version);
// fixed value property type == 4
byte type = bb.readByte();
if (type != (byte) 0x4)
throw new OFParseError("Wrong type: Expected=OFType.EXPERIMENTER(4), got=" + type);
int length = U16.f(bb.readShort());
if (length < MINIMUM_LENGTH)
throw new OFParseError(
"Wrong length: Expected to be >= " + MINIMUM_LENGTH + ", was: " + length);
if (bb.readableBytes() + (bb.readerIndex() - start) < length) {
// Buffer does not have all data yet
bb.readerIndex(start);
return null;
}
if (logger.isTraceEnabled()) logger.trace("readFrom - length={}", length);
long xid = U32.f(bb.readInt());
// fixed value property experimenter == 0x5c16c7L
int experimenter = bb.readInt();
if (experimenter != 0x5c16c7)
throw new OFParseError(
"Wrong experimenter: Expected=0x5c16c7L(0x5c16c7L), got=" + experimenter);
// fixed value property subtype == 0x2eL
int subtype = bb.readInt();
if (subtype != 0x2e)
throw new OFParseError("Wrong subtype: Expected=0x2eL(0x2eL), got=" + subtype);
GenTableId tableId = GenTableId.read2Bytes(bb);
int keyLength = U16.f(bb.readShort());
U128 checksum = U128.read16Bytes(bb);
List<OFBsnTlv> key = ChannelUtils.readList(bb, keyLength, OFBsnTlvVer13.READER);
List<OFBsnTlv> value =
ChannelUtils.readList(bb, length - (bb.readerIndex() - start), OFBsnTlvVer13.READER);
OFBsnGentableEntryAddVer13 bsnGentableEntryAddVer13 =
new OFBsnGentableEntryAddVer13(xid, tableId, checksum, key, value);
if (logger.isTraceEnabled()) logger.trace("readFrom - read={}", bsnGentableEntryAddVer13);
return bsnGentableEntryAddVer13;
}
