private void checkIfAxis(Variable v) {
String name = v.getName();
if (name.equalsIgnoreCase("Longitude"))
v.addAttribute(new Attribute(_Coordinate.AxisType, AxisType.Lon.toString()));
else if (name.equalsIgnoreCase("Latitude"))
v.addAttribute(new Attribute(_Coordinate.AxisType, AxisType.Lat.toString()));
}
/**
* Wrap the given Variable, making it into a VariableDS. Delegate data reading to the original
* variable. Take all metadata from original variable. Does not share cache, iosp.
*
* @param g logical container, if null use orgVar's group
* @param orgVar the original Variable to wrap. The original Variable is not modified. Must not be
* a Structure, use StructureDS instead.
* @param enhance if true, use NetcdfDataset.defaultEnhanceMode to define what enhancements are
* made. Note that this can change DataType and data values. You can also call enhance()
* later. If orgVar is VariableDS, then enhance is inherited from there, and this parameter is
* ignored.
*/
public VariableDS(Group g, Variable orgVar, boolean enhance) {
super(orgVar);
if (g != null)
this.group =
g; // otherwise super() sets group; this affects the long name and the dimensions.
setDimensions(getDimensionsString()); // reset the dimensions
if (orgVar instanceof Structure)
throw new IllegalArgumentException(
"VariableDS must not wrap a Structure; name=" + orgVar.getName());
// dont share cache, iosp : all IO is delegated
this.ncfile = null;
this.spiObject = null;
createNewCache();
this.orgVar = orgVar;
this.orgDataType = orgVar.getDataType();
if (orgVar instanceof VariableDS) {
VariableDS ncVarDS = (VariableDS) orgVar;
this.enhanceProxy = ncVarDS.enhanceProxy;
this.scaleMissingProxy = ncVarDS.scaleMissingProxy;
this.enhanceMode = ncVarDS.enhanceMode;
} else {
this.enhanceProxy = new EnhancementsImpl(this);
if (enhance) {
enhance(NetcdfDataset.getDefaultEnhanceMode());
} else {
this.scaleMissingProxy = new EnhanceScaleMissingImpl();
}
}
}
public static String getRasterName(Variable variable) {
Attribute attribute = variable.findAttribute(Constants.ORIG_NAME_ATT_NAME);
if (attribute != null) {
return attribute.getStringValue();
} else {
return variable.getName();
}
}
public static void doVar(NetcdfDataset netcdfdataset, String varS, String limits) {
System.out.println("\r---------\r\r");
ucar.nc2.Variable var = netcdfdataset.findVariable(varS);
System.out.println(var.getName() + " " + var.getSize());
Array arr;
try {
arr = var.read(limits);
NCdump.printArray(arr, "array", System.out, null);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InvalidRangeException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
* Generate a list of ViewVariables direct from a dataset. The list will be filtered to only
* include variables with the specified name
*
* @param ds
* @param variableNameFilter if not null, all ViewVariables in the response will have the name
* variableNameFilter
* @return
* @throws IOException
*/
public static AbstractViewVariable[] fromNetCDFDataset(
NetcdfDataset ds, String variableNameFilter) throws IOException {
List<AbstractViewVariable> result = new ArrayList<>();
for (Variable var : ds.getVariables()) {
if (variableNameFilter != null) {
if (!var.getName().equals(variableNameFilter)) {
continue;
}
}
AbstractViewVariable parsedViewVar = parseVariableRecursive(var);
if (parsedViewVar != null) result.add(parsedViewVar);
}
return result.toArray(new AbstractViewVariable[result.size()]);
}
/**
* Recursively parses attribute and variable paths, filling <code>attributeList</code> and <code>
* variableList</code>.
*
* @param groups List of groups to recursively parse.
*/
private void parseAttributesAndVariables(List<Group> groups) {
for (Group group : groups) {
String groupName = group.getName();
List<Attribute> attributes = group.getAttributes();
for (Attribute attribute : attributes) {
String attributeName = attribute.getName();
if (!groupName.endsWith("/")) attributeName = "/" + attributeName;
attributeList.add(groupName + attributeName);
}
List<Variable> variables = group.getVariables();
for (Variable variable : variables) {
String variableName = variable.getName();
if (!groupName.endsWith("/")) variableName = "/" + variableName;
variableList.add(variableName);
}
groups = group.getGroups();
parseAttributesAndVariables(groups);
}
}
/**
* Make a new VariableDS, delegate data reading to the original variable, but otherwise dont take
* any info from it. This is used by NcML explicit mode.
*
* @param group the containing group; may not be null
* @param parent parent Structure, may be null
* @param shortName variable shortName, must be unique within the Group
* @param orgVar the original Variable to wrap. The original Variable is not modified. Must not be
* a Structure, use StructureDS instead.
*/
public VariableDS(Group group, Structure parent, String shortName, Variable orgVar) {
super(null, group, parent, shortName);
setDimensions(getDimensionsString()); // reset the dimensions
if (orgVar instanceof Structure)
throw new IllegalArgumentException(
"VariableDS must not wrap a Structure; name=" + orgVar.getName());
// dont share cache, iosp : all IO is delegated
this.ncfile = null;
this.spiObject = null;
createNewCache();
this.orgVar = orgVar;
this.orgDataType = orgVar.getDataType();
this.enhanceProxy = new EnhancementsImpl(this);
this.scaleMissingProxy = new EnhanceScaleMissingImpl();
}
public static Variable[] getVariables(List<Variable> variables, String[] names) {
if (variables == null || names == null) {
return null;
}
if (variables.size() < names.length) {
return null;
}
final Variable[] result = new Variable[names.length];
for (int i = 0; i < names.length; i++) {
final String name = names[i];
for (Variable variable : variables) {
if (variable.getName().equalsIgnoreCase(name)) {
result[i] = variable;
break;
}
}
if (result[i] == null) {
return null;
}
}
return result;
}
/**
* Parses a variable recursively into appropriate ViewVariable implementations
*
* @throws IOException
* @throws
*/
private static AbstractViewVariable parseVariableRecursive(Variable var) throws IOException {
List<Dimension> dimensions = var.getDimensions();
// A single dimension means we can parse a SimpleAxis
if (dimensions.size() == 1) {
SimpleAxis axis =
new SimpleAxis(var.getName(), var.getDataType().name(), var.getUnitsString(), null, null);
Dimension d = dimensions.get(0);
axis.setDimensionBounds(new SimpleBounds(0, d.getLength()));
// Read our first and last values
Array first = null, last = null;
try {
first = var.read(new int[] {0}, new int[] {1});
last = var.read(new int[] {d.getLength() - 1}, new int[] {1});
} catch (InvalidRangeException ex) {
throw new IllegalArgumentException(
String.format("Unable to read variable ranges '%1$s'", var), ex);
}
axis.setValueBounds(new SimpleBounds(first.getDouble(0), last.getDouble(0)));
return axis;
// Otherwise we have a multi dimensional variable that we can parse as a grid
} else if (dimensions.size() > 0) {
SimpleGrid grid =
new SimpleGrid(var.getName(), var.getDataType().name(), var.getUnitsString(), null);
List<AbstractViewVariable> childAxes = new ArrayList<>();
// Recursively parse each dimension (which should map to a variable in the parent group)
for (Dimension d : dimensions) {
Variable mappedVariable = d.getGroup().findVariable(d.getName());
if (mappedVariable == null) {
// If the dimension doesn't map to a variable, we can't pull much information out of it
// So instead we'll have to introduce an axis that only includes dimension bounds
log.warn(
String.format(
"Dimension '%1$s' has no matching variable in parent group '%2$s'",
d, d.getGroup()));
SimpleAxis axis = new SimpleAxis(d.getName(), DataType.FLOAT.name(), "????", null, null);
axis.setDimensionBounds(new SimpleBounds(0, d.getLength() - 1));
childAxes.add(axis);
} else {
AbstractViewVariable parsedVar = parseVariableRecursive(mappedVariable);
if (parsedVar != null) childAxes.add(parsedVar);
}
}
if (childAxes.size() > 0) {
grid.setAxes(childAxes.toArray(new AbstractViewVariable[childAxes.size()]));
return grid;
} else {
return null;
}
} else {
// Currently unsupported...
log.warn(
String.format("Variables with 0 dimensions are currently unsupported. var='%1$s'", var));
return null;
}
}
/**
* Add this coord as a variable in the netCDF file
*
* @param ncfile netCDF file to add to
* @param g group in file
*/
void addToNetcdfFile(NetcdfFile ncfile, Group g) {
if (dontUseVertical) {
typicalRecord = null;
return;
}
if (g == null) {
g = ncfile.getRootGroup();
}
// coordinate axis
Variable v = new Variable(ncfile, g, null, getVariableName());
v.setDataType(DataType.DOUBLE);
String desc = lookup.getLevelDescription(typicalRecord);
if (lookup instanceof Grib2GridTableLookup && usesBounds) {
desc = "Layer between " + desc;
}
v.addAttribute(new Attribute("long_name", desc));
v.addAttribute(new Attribute("units", lookup.getLevelUnit(typicalRecord)));
// positive attribute needed for CF-1 Height and Pressure
if (positive != null) {
v.addAttribute(new Attribute("positive", positive));
}
if (units != null) {
AxisType axisType;
if (SimpleUnit.isCompatible("millibar", units)) {
axisType = AxisType.Pressure;
} else if (SimpleUnit.isCompatible("m", units)) {
axisType = AxisType.Height;
} else {
axisType = AxisType.GeoZ;
}
if (lookup instanceof Grib2GridTableLookup || lookup instanceof Grib1GridTableLookup) {
v.addAttribute(
new Attribute("GRIB_level_type", Integer.toString(typicalRecord.getLevelType1())));
} else {
v.addAttribute(
new Attribute("level_type", Integer.toString(typicalRecord.getLevelType1())));
}
v.addAttribute(new Attribute(_Coordinate.AxisType, axisType.toString()));
}
if (coordValues == null) {
coordValues = new double[levels.size()];
for (int i = 0; i < levels.size(); i++) {
LevelCoord lc = (LevelCoord) levels.get(i);
coordValues[i] = lc.mid;
}
}
Array dataArray = Array.factory(DataType.DOUBLE, new int[] {coordValues.length}, coordValues);
v.setDimensions(getVariableName());
v.setCachedData(dataArray, true);
ncfile.addVariable(g, v);
if (usesBounds) {
String boundsDimName = "bounds_dim";
if (g.findDimension(boundsDimName) == null) {
ncfile.addDimension(g, new Dimension(boundsDimName, 2, true));
}
String bname = getVariableName() + "_bounds";
v.addAttribute(new Attribute("bounds", bname));
v.addAttribute(new Attribute(_Coordinate.ZisLayer, "true"));
Variable b = new Variable(ncfile, g, null, bname);
b.setDataType(DataType.DOUBLE);
b.setDimensions(getVariableName() + " " + boundsDimName);
b.addAttribute(new Attribute("long_name", "bounds for " + v.getName()));
b.addAttribute(new Attribute("units", lookup.getLevelUnit(typicalRecord)));
Array boundsArray = Array.factory(DataType.DOUBLE, new int[] {coordValues.length, 2});
ucar.ma2.Index ima = boundsArray.getIndex();
for (int i = 0; i < coordValues.length; i++) {
LevelCoord lc = (LevelCoord) levels.get(i);
boundsArray.setDouble(ima.set(i, 0), lc.value1);
boundsArray.setDouble(ima.set(i, 1), lc.value2);
}
b.setCachedData(boundsArray, true);
ncfile.addVariable(g, b);
}
if (factors != null) {
// check if already created
if (g == null) {
g = ncfile.getRootGroup();
}
if (g.findVariable("hybrida") != null) return;
v.addAttribute(new Attribute("standard_name", "atmosphere_hybrid_sigma_pressure_coordinate"));
v.addAttribute(new Attribute("formula_terms", "ap: hybrida b: hybridb ps: Pressure"));
// create hybrid factor variables
// add hybrida variable
Variable ha = new Variable(ncfile, g, null, "hybrida");
ha.setDataType(DataType.DOUBLE);
ha.addAttribute(new Attribute("long_name", "level_a_factor"));
ha.addAttribute(new Attribute("units", ""));
ha.setDimensions(getVariableName());
// add data
int middle = factors.length / 2;
double[] adata;
double[] bdata;
if (levels.size() < middle) { // only partial data wanted
adata = new double[levels.size()];
bdata = new double[levels.size()];
} else {
adata = new double[middle];
bdata = new double[middle];
}
for (int i = 0; i < middle && i < levels.size(); i++) adata[i] = factors[i];
Array haArray = Array.factory(DataType.DOUBLE, new int[] {adata.length}, adata);
ha.setCachedData(haArray, true);
ncfile.addVariable(g, ha);
// add hybridb variable
Variable hb = new Variable(ncfile, g, null, "hybridb");
hb.setDataType(DataType.DOUBLE);
hb.addAttribute(new Attribute("long_name", "level_b_factor"));
hb.addAttribute(new Attribute("units", ""));
hb.setDimensions(getVariableName());
// add data
for (int i = 0; i < middle && i < levels.size(); i++) bdata[i] = factors[i + middle];
Array hbArray = Array.factory(DataType.DOUBLE, new int[] {bdata.length}, bdata);
hb.setCachedData(hbArray, true);
ncfile.addVariable(g, hb);
/* // TODO: delete next time modifying code
double[] adata = new double[ middle ];
for( int i = 0; i < middle; i++ )
adata[ i ] = factors[ i ];
Array haArray = Array.factory(DataType.DOUBLE, new int[]{adata.length}, adata);
ha.setCachedData(haArray, true);
ncfile.addVariable(g, ha);
// add hybridb variable
Variable hb = new Variable(ncfile, g, null, "hybridb");
hb.setDataType(DataType.DOUBLE);
hb.addAttribute(new Attribute("long_name", "level_b_factor" ));
//hb.addAttribute(new Attribute("standard_name", "atmosphere_hybrid_sigma_pressure_coordinate" ));
hb.addAttribute(new Attribute("units", ""));
hb.setDimensions(getVariableName());
// add data
double[] bdata = new double[ middle ];
for( int i = 0; i < middle; i++ )
bdata[ i ] = factors[ i + middle ];
Array hbArray = Array.factory(DataType.DOUBLE, new int[]{bdata.length}, bdata);
hb.setCachedData(hbArray, true);
ncfile.addVariable(g, hb);
*/
}
}
/**
* Set the Variable to wrap. Used by NcML explicit mode.
*
* @param orgVar original Variable, must not be a Structure
*/
public void setOriginalVariable(ucar.nc2.Variable orgVar) {
if (orgVar instanceof Structure)
throw new IllegalArgumentException(
"VariableDS must not wrap a Structure; name=" + orgVar.getName());
this.orgVar = orgVar;
}
/**
* Constructor
*
* @param ncVar: the netcdf Variable
*/
NcSDFloat64(Variable ncVar) {
super(ncVar.getName());
this.ncVar = ncVar;
}
