public void update(final VType value) {
display_info = Optional.ofNullable(ValueUtil.displayOf(value));
if (display_info.isPresent()) value_dbl = ValueUtil.numericValueOf(value).doubleValue();
if (value instanceof VNumber)
value_str = Double.toString(((VNumber) value).getValue().doubleValue());
else if (value instanceof VEnum) {
final VEnum ev = (VEnum) value;
if (ev.getIndex() >= 0 && ev.getIndex() < ev.getLabels().size())
value_str = ev.getLabels().get(ev.getIndex());
else value_str = Integer.toString(ev.getIndex());
} else if (value instanceof VString) value_str = ((VString) value).getValue();
else value_str = Objects.toString(value);
final Time vtime = ValueUtil.timeOf(value);
if (vtime == null) return;
final Timestamp stamp = vtime.getTimestamp();
final Instant new_time = Instant.ofEpochSecond(stamp.getSec(), stamp.getNanoSec());
if (time != null) {
final Duration duration = Duration.between(time, new_time);
final double period = duration.getSeconds() + duration.getNano() * 1e-9;
value_period.add(period);
} else value_period.reset();
time = new_time;
}
/**
* Default toString implementation for VString.
*
* @param vString the object
* @return the string representation
*/
public static String toString(VString vString) {
StringBuilder builder = new StringBuilder();
Class type = ValueUtil.typeOf(vString);
builder.append(type.getSimpleName()).append("[").append(vString.getValue());
appendAlarm(builder, vString);
appendTime(builder, vString);
builder.append(']');
return builder.toString();
}
/**
* Default toString implementation for VNumber.
*
* @param vNumber the object
* @return the string representation
*/
public static String toString(VNumber vNumber) {
StringBuilder builder = new StringBuilder();
Class type = ValueUtil.typeOf(vNumber);
builder.append(type.getSimpleName()).append('[').append(vNumber.getValue());
appendAlarm(builder, vNumber);
appendTime(builder, vNumber);
builder.append(']');
return builder.toString();
}
/**
* Default toString implementation for VEnumArray.
*
* @param vEnumArray the object
* @return the string representation
*/
public static String toString(VEnumArray vEnumArray) {
StringBuilder builder = new StringBuilder();
Class type = ValueUtil.typeOf(vEnumArray);
builder.append(type.getSimpleName()).append("[");
builder.append(format.format(vEnumArray));
builder.append(", size ").append(vEnumArray.getData().size());
appendAlarm(builder, vEnumArray);
appendTime(builder, vEnumArray);
builder.append(']');
return builder.toString();
}
/**
* Default toString implementation for VEnum.
*
* @param vEnum the object
* @return the string representation
*/
public static String toString(VEnum vEnum) {
StringBuilder builder = new StringBuilder();
Class type = ValueUtil.typeOf(vEnum);
builder
.append(type.getSimpleName())
.append("[")
.append(vEnum.getValue())
.append("(")
.append(vEnum.getIndex())
.append(")");
appendAlarm(builder, vEnum);
appendTime(builder, vEnum);
builder.append(']');
return builder.toString();
}
@Override
public Graph2DResult readValue() {
VType vType = tableData.readValue();
xColumnName.readNext();
yColumnName.readNext();
tooltipColumnName.readNext();
// Table and columns must be available
if (vType == null || xColumnName.isMissing() || yColumnName.isMissing()) {
return null;
}
// Prepare new dataset
Point2DDataset dataset;
if (vType instanceof VNumberArray) {
dataset = Point2DDatasets.lineData(((VNumberArray) vType).getData());
} else {
dataset =
DatasetConversions.point2DDatasetFromVTable(
(VTable) vType, xColumnName.getValue(), yColumnName.getValue());
}
// Process all renderer updates
List<LineGraph2DRendererUpdate> updates = rendererUpdateQueue.readValue();
for (LineGraph2DRendererUpdate rendererUpdate : updates) {
renderer.update(rendererUpdate);
}
// If no size is set, don't calculate anything
if (renderer.getImageHeight() == 0 && renderer.getImageWidth() == 0) return null;
BufferedImage image =
new BufferedImage(
renderer.getImageWidth(), renderer.getImageHeight(), BufferedImage.TYPE_3BYTE_BGR);
renderer.draw(image.createGraphics(), dataset);
previousImage = ValueUtil.toVImage(image);
return new Graph2DResult(
vType,
previousImage,
new GraphDataRange(
renderer.getXPlotRange(), dataset.getXStatistics(), renderer.getXAggregatedRange()),
new GraphDataRange(
renderer.getYPlotRange(), dataset.getYStatistics(), renderer.getYAggregatedRange()),
renderer.getFocusValueIndex());
}
@Override
public List<ArrayDimensionDisplay> getDimensionDisplay() {
return ValueUtil.defaultArrayDisplay(this);
}