String operatorId = datatype[1];
String unitId = datatype[3];
Literal value;
if (type.equals("int")) {
value = new IntegerLiteral(Integer.parseInt(datatype[2]));
} else if (type.equals("float")) {
value = new DecimalLiteral(new BigDecimal(datatype[2]));
} else {
log.error("Unknown type: " + type);
return;