PointFeatureImpl.java example

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package ucar.nc2.ft.point;

import ucar.nc2.ft.*;
import ucar.nc2.time.CalendarDate;
import ucar.nc2.units.DateUnit;
import ucar.unidata.geoloc.EarthLocation;

import java.util.Date;

/**
 * Abstract superclass for implementations of PointFeature.
 * Concrete subclass must implement getFeatureData() and getDataAll();
 *
 * @author caron
 * @since Feb 29, 2008
 */


public abstract class PointFeatureImpl implements PointFeature, Comparable<PointFeature> {

  protected EarthLocation location;
  protected double obsTime, nomTime;
  protected DateUnit timeUnit;

  public PointFeatureImpl( DateUnit timeUnit) {
    this.timeUnit = timeUnit;
  }

  public PointFeatureImpl( EarthLocation location, double obsTime, double nomTime, DateUnit timeUnit) {
    this.location = location;
    this.obsTime = obsTime;
    this.nomTime = (nomTime == 0) ? obsTime : nomTime; // LOOK temp kludge until protobuf accepts NaN as defaults
    this.timeUnit = timeUnit;
  }

  @Override
  public EarthLocation getLocation() { return location; }
  @Override
  public double getNominalTime() { return nomTime; }
  @Override
  public double getObservationTime() { return obsTime; }

  public String getDescription() {
    return location.toString(); // ??
  }

  @Override
  public Date getObservationTimeAsDate() {
    return timeUnit.makeDate( getObservationTime());
  }

  @Override
  public Date getNominalTimeAsDate() {
    return timeUnit.makeDate(getNominalTime());
  }

  @Override
  public CalendarDate getObservationTimeAsCalendarDate() {
    return timeUnit.makeCalendarDate( getObservationTime());
  }

  @Override
  public CalendarDate getNominalTimeAsCalendarDate() {
    return timeUnit.makeCalendarDate( getNominalTime());
  }

  public int compareTo(PointFeature other) {
    if (obsTime < other.getObservationTime()) return -1;
    if (obsTime > other.getObservationTime()) return 1;
    return 0;
  }

  @Override
  public String toString() {
    return "PointFeatureImpl{" +
        "location=" + location +
        ", obsTime=" + obsTime +
        ", nomTime=" + nomTime +
        ", timeUnit=" + timeUnit +
        '}';
  }

  @Override
  public ucar.ma2.StructureData getData() throws java.io.IOException {
    return getDataAll();
  }

}