private String presetName;
@Override
public void startElement(String uri, String localName, String qName, Attributes atts) throws SAXException {
StateVariable stateVariable = new StateVariable(localName, new StateVariableTypeDetails(new StringDatatype()));
StateVariableValue stateVariableValue = new StateVariableValue(stateVariable, atts.getValue("val"));
if ("Volume".equals(qName)) {
changes.put(qName+atts.getValue("channel"), stateVariableValue);
} else if ("Mute".equals(qName)) {