@Override
public OFMatchV3 readFrom(ChannelBuffer bb) throws OFParseError {
int start = bb.readerIndex();
// fixed value property type == 0x1
short type = bb.readShort();
if (type != (short) 0x1) throw new OFParseError("Wrong type: Expected=0x1(0x1), 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);
OFOxmList oxmList =
OFOxmList.readFrom(bb, length - (bb.readerIndex() - start), OFOxmVer14.READER);
// align message to 8 bytes (length does not contain alignment)
bb.skipBytes(((length + 7) / 8 * 8) - length);
OFMatchV3Ver14 matchV3Ver14 = new OFMatchV3Ver14(oxmList);
if (logger.isTraceEnabled()) logger.trace("readFrom - read={}", matchV3Ver14);
return matchV3Ver14;
}
