Package ucar.nc2.ft.point

Source Code of ucar.nc2.ft.point.StationFeatureImpl$StationFeatureSubset

/*
* Copyright 1998-2009 University Corporation for Atmospheric Research/Unidata
*
* Portions of this software were developed by the Unidata Program at the
* University Corporation for Atmospheric Research.
*
* Access and use of this software shall impose the following obligations
* and understandings on the user. The user is granted the right, without
* any fee or cost, to use, copy, modify, alter, enhance and distribute
* this software, and any derivative works thereof, and its supporting
* documentation for any purpose whatsoever, provided that this entire
* notice appears in all copies of the software, derivative works and
* supporting documentation.  Further, UCAR requests that the user credit
* UCAR/Unidata in any publications that result from the use of this
* software or in any product that includes this software. The names UCAR
* and/or Unidata, however, may not be used in any advertising or publicity
* to endorse or promote any products or commercial entity unless specific
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* any support, consulting, training or assistance of any kind with regard
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* the user with any updates, revisions, new versions or "bug fixes."
*
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* DISCLAIMED. IN NO EVENT SHALL UCAR/UNIDATA BE LIABLE FOR ANY SPECIAL,
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*/
package ucar.nc2.ft.point;

import ucar.nc2.ft.*;
import ucar.nc2.units.DateUnit;
import ucar.nc2.units.DateRange;
import ucar.nc2.constants.FeatureType;
import ucar.unidata.geoloc.LatLonPoint;
import ucar.unidata.geoloc.Station;
import ucar.unidata.geoloc.StationImpl;
import ucar.unidata.geoloc.LatLonRect;

import java.io.IOException;

/**
* Superclass for implementations of StationFeature: time series of data at a point
* Concrete subclass must implement getPointFeatureIterator();
*
* @author caron
*/


public abstract class StationFeatureImpl extends PointCollectionImpl implements StationTimeSeriesFeature {
  protected Station s;
  protected DateUnit timeUnit;

  public StationFeatureImpl(String name, String desc, String wmoId, double lat, double lon, double alt, DateUnit timeUnit, int npts) {
    super(name);
    s = new StationImpl(name, desc, wmoId, lat, lon, alt);
    this.timeUnit = timeUnit;
    this.npts = npts;
  }

  public StationFeatureImpl(Station s, DateUnit timeUnit, int npts) {
    super(s.getName());
    this.s = s;
    this.timeUnit = timeUnit;
    this.npts = npts;
    setBoundingBox( new LatLonRect(s.getLatLon(), .0001, .0001));
  }

  public String getWmoId() {
    return s.getWmoId();
  }

  public int size() {
    return npts;
  }

  public void setNumberPoints(int npts) {
    this.npts = npts;
  }

  public String getName() {
    return s.getName();
  }

  public String getDescription() {
    return s.getDescription();
  }

  public double getLatitude() {
    return s.getLatitude();
  }

  public double getLongitude() {
    return s.getLongitude();
  }

  public double getAltitude() {
    return s.getAltitude();
  }

  public LatLonPoint getLatLon() {
    return s.getLatLon();
  }

  public boolean isMissing() {
    return Double.isNaN(getLatitude()) || Double.isNaN(getLongitude());
  }

  @Override
  public FeatureType getCollectionFeatureType() {
    return FeatureType.STATION;
  }

  @Override
  public String toString() {
    return "StationFeatureImpl{" +
        "s=" + s +
        ", timeUnit=" + timeUnit +
        ", npts=" + npts +
        '}';
  }

  public StationTimeSeriesFeature subset(DateRange dateRange) throws IOException {
    if (dateRange == null) return this;
    return new StationFeatureSubset(this, dateRange);
  }

  public int compareTo(Station so) {
    return name.compareTo( so.getName());
  }

  private class StationFeatureSubset extends StationFeatureImpl {
    StationFeatureImpl from;

    StationFeatureSubset(StationFeatureImpl from, DateRange filter_date) {
      super(from.s, from.timeUnit, -1);
      this.from = from;

      if (filter_date == null) {
        this.dateRange = from.dateRange;
      } else {
        this.dateRange = (from.dateRange == null) ? filter_date : from.dateRange.intersect(filter_date);
      }
    }

    public PointFeatureIterator getPointFeatureIterator(int bufferSize) throws IOException {
      return new PointIteratorFiltered(from.getPointFeatureIterator(bufferSize), null, this.dateRange);
    }

  }
}
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