/** Instances which have same contents are equal. Careful!! this is not object identity !! */
@Override
public boolean equals(Object oo) {
if (this == oo) return true;
if (!(oo instanceof Dimension)) return false;
Dimension other = (Dimension) oo;
if ((g != null) && !g.equals(other.getGroup())) return false;
if ((getName() == null) && (other.getName() != null)) return false;
if ((getName() != null) && !getName().equals(other.getName())) return false;
return (getLength() == other.getLength())
&& (isUnlimited() == other.isUnlimited())
&& (isVariableLength() == other.isVariableLength())
&& (isShared() == other.isShared());
}
// look if the wanted dimension is in the unknownDims list.
private Dimension checkUnknownDims(
String wantDim, List<Dimension> unknownDims, Dimension oldDim, String location) {
for (Dimension dim : unknownDims) {
if (dim.getShortName().equals(wantDim)) {
int len = oldDim.getLength();
if (len == 0) dim.setUnlimited(true); // allow zero length dimension !!
dim.setLength(len); // use existing (anon) dimension
Group parent = dim.getGroup();
parent.addDimensionIfNotExists(dim); // add to the parent
unknownDims.remove(dim); // remove from list LOOK is this ok?
log.warn("unknownDim {} length set to {}{}", wantDim, oldDim.getLength(), location);
return dim;
}
}
return null;
}
/**
* 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;
}
}