// create from a dataset
public VariableBean(Variable vs) {
this.vs = vs;
// vs = (v instanceof VariableEnhanced) ? (VariableEnhanced) v : new VariableStandardized( v);
setName(vs.getShortName());
setDescription(vs.getDescription());
setUnits(vs.getUnitsString());
setDataType(vs.getDataType().toString());
// Attribute csAtt = vs.findAttribute("_coordSystems");
// if (csAtt != null)
// setCoordSys( csAtt.getStringValue());
// collect dimensions
StringBuilder lens = new StringBuilder();
StringBuilder names = new StringBuilder();
java.util.List dims = vs.getDimensions();
for (int j = 0; j < dims.size(); j++) {
ucar.nc2.Dimension dim = (ucar.nc2.Dimension) dims.get(j);
if (j > 0) {
lens.append(",");
names.append(",");
}
String name = dim.isShared() ? dim.getName() : "anon";
names.append(name);
lens.append(dim.getLength());
}
setDimensions(names.toString());
setShape(lens.toString());
}
private void makeVariableNoCoords(
NetcdfFile ncfile, int datatype, String shortName, String longName, Variable from) {
Variable v = new Variable(ncfile, null, null, shortName);
v.setDataType(DataType.BYTE);
v.setDimensions(from.getDimensions());
ncfile.addVariable(null, v);
v.addAttribute(new Attribute(CDM.UNITS, Cinrad2Record.getDatatypeUnits(datatype)));
v.addAttribute(new Attribute(CDM.LONG_NAME, longName));
byte[] b = new byte[2];
b[0] = Cinrad2Record.MISSING_DATA;
b[1] = Cinrad2Record.BELOW_THRESHOLD;
Array missingArray = Array.factory(DataType.BYTE.getPrimitiveClassType(), new int[] {2}, b);
v.addAttribute(new Attribute(CDM.MISSING_VALUE, missingArray));
v.addAttribute(
new Attribute("signal_below_threshold", new Byte(Cinrad2Record.BELOW_THRESHOLD)));
v.addAttribute(
new Attribute(CDM.SCALE_FACTOR, new Float(Cinrad2Record.getDatatypeScaleFactor(datatype))));
v.addAttribute(
new Attribute(CDM.ADD_OFFSET, new Float(Cinrad2Record.getDatatypeAddOffset(datatype))));
v.addAttribute(new Attribute(CDM.UNSIGNED, "true"));
Attribute fromAtt = from.findAttribute(_Coordinate.Axes);
v.addAttribute(new Attribute(_Coordinate.Axes, fromAtt));
Vgroup vgFrom = (Vgroup) from.getSPobject();
Vgroup vg = new Vgroup(datatype, vgFrom.map);
v.setSPobject(vg);
}
public static boolean isValidFile(NetcdfDataset ds) {
// Check that has a time dimension and a trajectory dimension.
List list = ds.getRootGroup().getDimensions();
if (list.size() != 2) return (false);
Dimension d;
for (int i = 0; i < 2; i++) {
d = (Dimension) list.get(i);
if (!d.getShortName().equals(timeDimNameDefault)
&& !d.getShortName().equals(trajDimNameDefault)) return (false);
}
// Check that has a trajectory coordinate variable.
Variable var = ds.getRootGroup().findVariable(trajVarNameDefault);
if (var == null) return (false);
list = var.getDimensions();
if (list.size() != 1) return (false);
d = (Dimension) list.get(0);
if (!d.getShortName().equals(trajDimNameDefault)) return (false);
// Check that has a time coordinate variable with units that are udunits time
var = ds.getRootGroup().findVariable(timeVarNameDefault);
if (var == null) return (false);
list = var.getDimensions();
if (list.size() != 1) return (false);
d = (Dimension) list.get(0);
if (!d.getShortName().equals(timeDimNameDefault)) return (false);
String units = var.findAttribute("units").getStringValue();
Date date = DateUnit.getStandardDate("0 " + units);
if (date == null) return (false);
// Check for variable latitude(time) with units of "deg".
var = ds.getRootGroup().findVariable(latVarNameDefault);
if (var == null) return (false);
list = var.getDimensions();
if (list.size() != 2) return (false);
for (int i = 0; i < 2; i++) {
d = (Dimension) list.get(i);
if (!d.getShortName().equals(timeDimNameDefault)
&& !d.getShortName().equals(trajDimNameDefault)) return (false);
}
// units = var.findAttribute( "units").getStringValue();
// if ( ! SimpleUnit.isCompatible( units, "degrees_north")) return( false);
// Check for variable longitude(time) with units of "deg".
var = ds.getRootGroup().findVariable(lonVarNameDefault);
if (var == null) return (false);
list = var.getDimensions();
if (list.size() != 2) return (false);
for (int i = 0; i < 2; i++) {
d = (Dimension) list.get(i);
if (!d.getShortName().equals(timeDimNameDefault)
&& !d.getShortName().equals(trajDimNameDefault)) return (false);
}
// units = var.findAttribute( "units").getStringValue();
// if ( ! SimpleUnit.isCompatible( units, "degrees_east")) return( false);
// Check for variable altitude(time) with units of "m".
var = ds.getRootGroup().findVariable(elevVarNameDefault);
if (var == null) return (false);
list = var.getDimensions();
if (list.size() != 2) return (false);
for (int i = 0; i < 2; i++) {
d = (Dimension) list.get(i);
if (!d.getShortName().equals(timeDimNameDefault)
&& !d.getShortName().equals(trajDimNameDefault)) return (false);
}
units = var.findAttribute("units").getStringValue();
if (!SimpleUnit.isCompatible(units, "m")) return (false);
return (true);
}
