/**
* Create a new Candle node to represent a single data item
*
* @param seriesIndex The index of the series the data item is in
* @param item The data item to create node for
* @param itemIndex The index of the data item in the series
* @return New candle node to represent the give data item
*/
private Node createCandle(int seriesIndex, final Data item, int itemIndex) {
Node candle = item.getNode();
// check if candle has already been created
if (candle instanceof Candle) {
((Candle) candle).setSeriesAndDataStyleClasses("series" + seriesIndex, "data" + itemIndex);
} else {
candle = new Candle("series" + seriesIndex, "data" + itemIndex);
item.setNode(candle);
}
return candle;
}
@Override
protected void dataItemRemoved(Data<String, Number> item, Series<String, Number> series) {
final Node candle = item.getNode();
if (shouldAnimate()) {
// fade out old candle
FadeTransition ft = new FadeTransition(Duration.millis(500), candle);
ft.setToValue(0);
ft.setOnFinished(
(ActionEvent actionEvent) -> {
getPlotChildren().remove(candle);
});
ft.play();
} else {
getPlotChildren().remove(candle);
}
}
/** Called to update and layout the content for the plot */
@Override
protected void layoutPlotChildren() {
// we have nothing to layout if no data is present
if (getData() == null) {
return;
}
// update candle positions
for (int seriesIndex = 0; seriesIndex < getData().size(); seriesIndex++) {
Series<String, Number> series = getData().get(seriesIndex);
Iterator<Data<String, Number>> iter = getDisplayedDataIterator(series);
Path seriesPath = null;
if (series.getNode() instanceof Path) {
seriesPath = (Path) series.getNode();
seriesPath.getElements().clear();
}
while (iter.hasNext()) {
Data<String, Number> item = iter.next();
double x = getXAxis().getDisplayPosition(getCurrentDisplayedXValue(item));
double y = getYAxis().getDisplayPosition(getCurrentDisplayedYValue(item));
Node itemNode = item.getNode();
BarData bar = (BarData) item.getExtraValue();
if (itemNode instanceof Candle && item.getYValue() != null) {
Candle candle = (Candle) itemNode;
double close = getYAxis().getDisplayPosition(bar.getClose());
double high = getYAxis().getDisplayPosition(bar.getHigh());
double low = getYAxis().getDisplayPosition(bar.getLow());
double candleWidth = 10;
// update candle
candle.update(close - y, high - y, low - y, candleWidth);
// update tooltip content
candle.updateTooltip(bar.getOpen(), bar.getClose(), bar.getHigh(), bar.getLow());
// position the candle
candle.setLayoutX(x);
candle.setLayoutY(y);
}
}
}
}
public void received(Data data) {
// the specific application logic behaves w.r.t. the type of data received
System.out.println(data);
switch (data.getFunctionCode()) {
case SPINEFunctionConstants.FEATURE:
{
features = ((FeatureData) data).getFeatures();
counter++;
// even this simple application shows us up some nice SPINE properties; in fact ...
if (counter == 5) {
// it's possible to deactivate functions computation at runtime (even when the radio on
// the node works in low-power mode)
FeatureSpineFunctionReq sfr = new FeatureSpineFunctionReq();
sfr.setSensor(features[0].getSensorCode());
sfr.remove(new Feature(features[0].getFeatureCode(), SPINESensorConstants.ALL));
manager.deactivate(data.getNode(), sfr);
}
if (counter == 10) {
// and, of course, we can activate new functions at runtime
FeatureSpineFunctionReq sfr = new FeatureSpineFunctionReq();
sfr.setSensor(features[0].getSensorCode());
sfr.add(new Feature(SPINEFunctionConstants.RANGE, SPINESensorConstants.CH1_ONLY));
manager.activate(data.getNode(), sfr);
}
if (counter == 20) {
// when we are set, we can decide to ...
// stop the WSN, forcing a 'software' reset of the nodes
/* manager.resetWsn(); */
// or just deregister ourself to further SPINE events.
// manager.deregisterListener(this);
}
break;
}
case SPINEFunctionConstants.ONE_SHOT:
// OneShotData oneShot = (OneShotData)data; // if needed 'data' can be casted to
// spine.datamodel.OneShotData
break;
case SPINEFunctionConstants.ALARM:
// AlarmData alarm = (AlarmData)data; // if needed 'data' can be casted to
// spine.datamodel.AlarmData
counter_alarm++;
if (counter_alarm == 20) {
AlarmSpineFunctionReq sfr2 = new AlarmSpineFunctionReq();
sfr2.setSensor(SPINESensorConstants.ACC_SENSOR);
sfr2.setAlarmType(SPINEFunctionConstants.ABOVE_THRESHOLD);
sfr2.setDataType(SPINEFunctionConstants.MAX);
sfr2.setValueType((SPINESensorConstants.CH1_ONLY));
manager.deactivate(data.getNode(), sfr2);
}
break;
}
}