/*
* Copyright (c) 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.
*
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* any fee or cost, to use, copy, modify, alter, enhance and distribute
* this software, and any derivative works thereof, and its supporting
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package ucar.nc2.dataset.conv;
import ucar.nc2.NetcdfFile;
import ucar.nc2.Variable;
import ucar.nc2.Attribute;
import ucar.nc2.Group;
import ucar.nc2.units.DateFormatter;
import ucar.nc2.constants.AxisType;
import ucar.nc2.util.CancelTask;
import ucar.nc2.dataset.NetcdfDataset;
import ucar.nc2.dataset.VariableEnhanced;
import ucar.nc2.dataset.CoordSysBuilder;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.text.ParseException;
import java.util.Date;
/**
* Describe
*
* @author caron
* @since Nov 3, 2009
*/
public class Suomi extends CoordSysBuilder {
/**
* @param ncfile the NetcdfFile to test
* @return true if we think this is a Zebra file.
*/
public static boolean isMine(NetcdfFile ncfile) {
Variable v = ncfile.findVariable("time_offset");
if (v == null || !v.isCoordinateVariable()) return false;
String desc = v.getDescription();
if (desc == null || !desc.equals("Time delta from start_time")) return false;
if (null == ncfile.findGlobalAttribute( "start_date")) return false;
if (null == ncfile.findGlobalAttribute( "start_time")) return false;
return true;
}
public Suomi() {
this.conventionName = "Suomi";
}
public void augmentDataset(NetcdfDataset ds, CancelTask cancelTask) throws IOException {
String start_date = ds.findAttValueIgnoreCase(null, "start_date", null);
SimpleDateFormat df = new SimpleDateFormat("yyyy.DDD.HH.mm.ss"); // "2006.105.00.00.00"
DateFormatter dfo = new DateFormatter();
Date start = null;
try {
start = df.parse(start_date);
} catch (ParseException e) {
throw new RuntimeException("Cant read start_date="+start_date);
}
Variable v = ds.findVariable("time_offset");
v.addAttribute(new Attribute( "units", "seconds since "+dfo.toDateTimeString(start)));
Group root = ds.getRootGroup();
root.addAttribute(new Attribute( "Convention", "Suomi-Station-CDM"));
ds.finish();
}
protected AxisType getAxisType(NetcdfDataset ncDataset, VariableEnhanced v) {
String name = v.getShortName();
if (name.equals("time_offset")) return AxisType.Time;
if (name.equals("lat")) return AxisType.Lat;
if (name.equals("lon")) return AxisType.Lon;
if (name.equals("height")) return AxisType.Height;
return null;
}
}