.getProducerByClassName(HistoryDataSourceProducer.class.getName());
producer.setDefaultRefreshingStrategy(REFRESHING_STRATEGY);
// key generating system
keyGeneratorMap = new HashMap<String, IKeyGenerator>();
IKeyGenerator tangoKey = new TangoKeyGenerator();
keyGeneratorMap.put(tangoKey.toString(), tangoKey);
IKeyGenerator simulatedKey = new SimulatedKeyGenerator();
keyGeneratorMap.put(simulatedKey.toString(), simulatedKey);
// create components
chartBox = new ChartViewerBox();