/**
* Generates a new set-ICBM-parameter-information command from the given incoming SNAC packet.
*
* @param packet an incoming set-ICBM-parameters packet
*/
protected SetParamInfoCmd(SnacPacket packet) {
super(CMD_SET_PARAM_INFO);
DefensiveTools.checkNull(packet, "packet");
ByteBlock snacData = packet.getData();
paramInfo = ParamInfo.readParamInfo(snacData);
}
/**
* Generates a new item-based command from the given incoming SNAC packet.
*
* @param command the SNAC command subtype for this command
* @param packet an incoming item-based command packet
*/
protected ItemsCmd(int command, SnacPacket packet) {
super(command);
DefensiveTools.checkNull(packet, "packet");
ByteBlock block = packet.getData();
List<SsiItem> itemList = new ArrayList<SsiItem>();
for (; ; ) {
SsiItem item = SsiItem.readSsiItem(block);
if (item == null) break;
itemList.add(item);
block = block.subBlock(item.getTotalSize());
}
items = DefensiveTools.getUnmodifiable(itemList);
}
/**
* Generates a new service request command from the given incoming SNAC packet.
*
* @param packet the incoming service request packet
*/
protected ServiceRequest(SnacPacket packet) {
super(CMD_SERVICE_REQ);
DefensiveTools.checkNull(packet, "packet");
ByteBlock snacData = packet.getData();
family = BinaryTools.getUShort(snacData, 0);
ByteBlock tlvBlock = snacData.subBlock(2);
TlvChain chatChain = TlvTools.readChain(tlvBlock);
Tlv chatInfoTlv = chatChain.getLastTlv(TYPE_ROOM_INFO);
if (chatInfoTlv != null) {
ByteBlock chatBlock = chatInfoTlv.getData();
roomInfo = MiniRoomInfo.readMiniRoomInfo(chatBlock);
} else {
roomInfo = null;
}
}