private StreamNegotiator getNegotiator(final FormField field) throws XMPPException {
String variable;
boolean isByteStream = false;
boolean isIBB = false;
for (final Iterator<FormField.Option> it = field.getOptions(); it.hasNext(); ) {
variable = it.next().getValue();
if (variable.equals(Socks5BytestreamManager.NAMESPACE) && !IBB_ONLY) {
isByteStream = true;
} else if (variable.equals(InBandBytestreamManager.NAMESPACE)) {
isIBB = true;
}
}
if (!isByteStream && !isIBB) {
final XMPPError error =
new XMPPError(XMPPError.Condition.bad_request, "No acceptable transfer mechanism");
throw new XMPPException(error.getMessage(), error);
}
// if (isByteStream && isIBB &&
// field.getType().equals(FormField.TYPE_LIST_MULTI)) {
if (isByteStream && isIBB) {
return new FaultTolerantNegotiator(
connection, byteStreamTransferManager, inbandTransferManager);
} else if (isByteStream) {
return byteStreamTransferManager;
} else {
return inbandTransferManager;
}
}
