de.gsi.chart.axes.spi.format.DefaultTimeFormatter Maven / Gradle / Ivy
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package de.gsi.chart.axes.spi.format;
import java.time.LocalDateTime;
import java.time.ZoneOffset;
import java.time.format.DateTimeFormatter;
import java.util.Locale;
import java.util.concurrent.TimeUnit;
import de.gsi.chart.axes.Axis;
import de.gsi.chart.axes.TickUnitSupplier;
import javafx.beans.property.ObjectProperty;
import javafx.beans.property.SimpleObjectProperty;
/**
* @author rstein
*/
public class DefaultTimeFormatter extends AbstractFormatter {
private static final TickUnitSupplier DEFAULT_TICK_UNIT_SUPPLIER = new DefaultTimeTickUnitSupplier();
private static final DateTimeFormatter HIGHRES_FORMATTER = DateTimeFormatter.ofPattern("HH:mm:ss +SSS",
Locale.ENGLISH);
protected final DateTimeFormatter[] dateFormat;
protected int oldIndex = -1;
protected int formatterIndex;
protected ObjectProperty timeZone = new SimpleObjectProperty<>(ZoneOffset.UTC);
/**
* A time-zone offset from Greenwich/UTC, such as {@code +02:00}.
*
* A time-zone offset is the amount of time that a time-zone differs from
* Greenwich/UTC. This is usually a fixed number of hours and minutes.
*
* @return ZoneOffset property that is being used to compute the local time
* axis
*/
public ObjectProperty timeZoneOffsetProperty() {
return timeZone;
}
/**
* @return Returns the A time-zone offset from Greenwich/UTC, such as
* {@code +02:00}.
*/
public ZoneOffset getTimeZoneOffset() {
return timeZoneOffsetProperty().get();
}
/**
* @param newOffset
* the ZoneOffset to be taken into account (UTC if 'null'.
*/
public void setTimeZoneOffset(final ZoneOffset newOffset) {
if (newOffset != null) {
timeZoneOffsetProperty().set(newOffset);
return;
}
timeZoneOffsetProperty().set(ZoneOffset.UTC);
}
/**
* Construct a DefaultFormatter for the given NumberAxis
*
* @param axis
* The axis to format tick marks for
*/
public DefaultTimeFormatter(final Axis axis) {
super(axis);
setTickUnitSupplier(DefaultTimeFormatter.DEFAULT_TICK_UNIT_SUPPLIER);
dateFormat = new DateTimeFormatter[DefaultTimeTickUnitSupplier.TICK_UNIT_FORMATTER_DEFAULTS.length];
for (int i = 0; i < dateFormat.length; i++) {
final String format = DefaultTimeTickUnitSupplier.TICK_UNIT_FORMATTER_DEFAULTS[i];
if (format.contains(DefaultTimeTickUnitSupplier.HIGHRES_MODE)) {
dateFormat[i] = DefaultTimeFormatter.HIGHRES_FORMATTER;
} else {
dateFormat[i] = DateTimeFormatter.ofPattern(format, Locale.ENGLISH);
}
}
}
/**
* Construct a DefaultFormatter for the given NumberAxis
*/
public DefaultTimeFormatter() {
this(null);
}
@Override
protected void rangeUpdated() {
// set formatter based on range if necessary
formatterIndex = DefaultTimeTickUnitSupplier.getTickIndex(getRange());
if (oldIndex != formatterIndex) {
labelCache.clear();
oldIndex = formatterIndex;
}
}
public String getCurrentLocalDateTimeStamp() {
return LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss.SSS"));
}
public String formatHighResString(final Number utcValueSeconds) {
final double timeAbs = Math.abs(utcValueSeconds.doubleValue());
final long timeUS = (long) (TimeUnit.SECONDS.toMicros(1) * timeAbs);
final long longUTCSeconds = Math.abs(utcValueSeconds.longValue());
final int longNanoSeconds = (int) ((timeAbs - longUTCSeconds) * 1e9);
final LocalDateTime dateTime = LocalDateTime.ofEpochSecond(longUTCSeconds, longNanoSeconds,
getTimeZoneOffset());
return dateTime.format(DefaultTimeFormatter.HIGHRES_FORMATTER).concat(Long.toString(timeUS % 1000)).concat("us")
.replaceAll(" ", System.lineSeparator());
}
@Override
public String toString(final Number utcValueSeconds) {
return labelCache.computeIfAbsent(utcValueSeconds, this::getTimeString);
}
private String getTimeString(final Number utcValueSeconds) {
if (formatterIndex <= DefaultTimeTickUnitSupplier.HIGHRES_MODE_INDICES) {
return formatHighResString(utcValueSeconds);
}
final long longUTCSeconds = utcValueSeconds.longValue();
final int longNanoSeconds = (int) ((utcValueSeconds.doubleValue() - longUTCSeconds) * 1e9);
final LocalDateTime dateTime = LocalDateTime.ofEpochSecond(longUTCSeconds, longNanoSeconds,
getTimeZoneOffset());
return dateTime.format(dateFormat[formatterIndex]).replaceAll(" ", System.lineSeparator());
}
@Override
public Number fromString(final String string) {
return null;
}
}