/**
* Gets LS request packet body as byte array.
*
* @return LS request packet body as byte array
*/
public byte[] getLsrBodyAsByteArray() {
List<Byte> bodyLst = new ArrayList<>();
try {
for (LsRequestPacket lsrPacket : linkStateRequests) {
bodyLst.addAll(Bytes.asList(OspfUtil.convertToFourBytes(lsrPacket.lsType())));
bodyLst.addAll(Bytes.asList(InetAddress.getByName(lsrPacket.linkStateId()).getAddress()));
bodyLst.addAll(Bytes.asList(InetAddress.getByName(lsrPacket.ownRouterId()).getAddress()));
}
} catch (Exception e) {
log.debug("Error::getLsrBodyAsByteArray {}", e.getMessage());
return Bytes.toArray(bodyLst);
}
return Bytes.toArray(bodyLst);
}
@Override
public void readFrom(ChannelBuffer channelBuffer) throws OspfParseException {
while (channelBuffer.readableBytes() >= OspfUtil.LSREQUEST_LENGTH) {
LsRequestPacket lsRequestPacket = new LsRequestPacket();
lsRequestPacket.setLsType(channelBuffer.readInt());
byte[] tempByteArray = new byte[OspfUtil.FOUR_BYTES];
channelBuffer.readBytes(tempByteArray, 0, OspfUtil.FOUR_BYTES);
lsRequestPacket.setLinkStateId(Ip4Address.valueOf(tempByteArray).toString());
tempByteArray = new byte[OspfUtil.FOUR_BYTES];
channelBuffer.readBytes(tempByteArray, 0, OspfUtil.FOUR_BYTES);
lsRequestPacket.setOwnRouterId(Ip4Address.valueOf(tempByteArray).toString());
this.addLinkStateRequests(lsRequestPacket);
}
}