// do not call directly
@Override
public Array reallyRead(Variable client, Section section, CancelTask cancelTask)
throws IOException, InvalidRangeException {
// see if its really a full read
if ((null == section) || section.computeSize() == getSize())
return reallyRead(client, cancelTask);
if (orgVar == null) return getMissingDataArray(section.getShape());
return orgVar.read(section);
}
// section of regular Variable
@Override
protected Array _read(Section section) throws IOException, InvalidRangeException {
// really a full read
if ((null == section) || section.computeSize() == getSize()) return _read();
Array result;
if (hasCachedData()) result = super._read(section);
else result = proxyReader.reallyRead(this, section, null);
if (needScaleOffsetMissing) return convertScaleOffsetMissing(result);
else if (needEnumConversion) return convertEnums(result);
else return result;
}
long computeArraySize(SDArray da) throws Exception {
assert (da.getContainerVar() instanceof DPrimitive);
BaseType base = da.getPrimitiveVector().getTemplate();
DataType dtype = DODSNetcdfFile.convertToNCType(base);
int elemSize = dtype.getSize();
int n = da.numDimensions();
List<Range> ranges = new ArrayList<Range>(n);
long size = 0;
for (int i = 0; i < n; i++) {
ranges.add(new Range(da.getStart(i), da.getStop(i), da.getStride(i)));
Section s = new Section(ranges);
size += s.computeSize() * elemSize;
}
return size;
}