How to use ucar.nc2.ncml

protected Array read(DatasetOuterDimension dset, NetcdfFile ncfile) throws IOException {
 Array data = readCached(dset);
 if (data != null) return data;
 return super.read(dset, ncfile);
}

 public Result call() throws Exception {
  Array data = ds.read(mainv, cancelTask);
  return new Result(data, index);
 }
}

protected void buildCoords(CancelTask cancelTask) throws IOException {
 List<Dataset> nestedDatasets = getDatasets();
 if (type == Type.forecastModelRunCollection) {
  for (Dataset nested : nestedDatasets) {
   DatasetOuterDimension dod = (DatasetOuterDimension) nested;
   dod.ncoord = 1;
  }
 }
 totalCoords = 0;
 for (Dataset nested : nestedDatasets) {
  DatasetOuterDimension dod = (DatasetOuterDimension) nested;
  totalCoords += dod.setStartEnd(totalCoords, cancelTask);
 }
}

/**
 * Read an NcML file from a URL location, and construct a NetcdfDataset.
 *
 * @param ncmlLocation the URL location string of the NcML document
 * @param cancelTask   allow user to cancel the task; may be null
 * @return the resulting NetcdfDataset
 * @throws IOException on read error, or bad referencedDatasetUri URI
 */
static public NetcdfDataset readNcML(String ncmlLocation, CancelTask cancelTask) throws IOException {
 return readNcML(ncmlLocation, (String) null, cancelTask);
}

@Override
protected void makeDatasets(CancelTask cancelTask) throws IOException {
 super.makeDatasets(cancelTask);
 for (Dataset ds : datasets)
  ds.enhance = fmrcEnhanceMode;
}

@Override
protected Dataset makeDataset(String cacheName, String location, String id, String ncoordS, String coordValueS, String sectionSpec,
               EnumSet<NetcdfDataset.Enhance> enhance, ucar.nc2.util.cache.FileFactory reader) {
 return new DatasetOuterDimension(cacheName, location, id, ncoordS, coordValueS, enhance, reader);
}

@Override
protected void cacheVariables(NetcdfFile ncfile) throws IOException {
 for (CacheVar pv : cacheList) {
  pv.read(this, ncfile);
 }
}

 public void testReadSlice(NetcdfFile ncfile) throws IOException, InvalidRangeException {
  testReadSlice( ncfile, new int[] {0, 0, 0, 0}, new int[] {14, 11, 3, 4} );
  testReadSlice( ncfile, new int[] {0, 0, 0, 0}, new int[] {4, 2, 3, 2} );
  testReadSlice( ncfile, new int[] {5, 0, 0, 0}, new int[] {3, 10, 3, 4} );
  testReadSlice( ncfile, new int[] {10, 0, 0, 0}, new int[] {4, 10, 2, 3} );
  }
}

protected Array read(DatasetOuterDimension dset) throws IOException {
 Array data = readCached(dset);
 if (data != null) return data;
 return super.read(dset);
}

 public Result call() throws Exception {
  Array data = ds.read(mainv, cancelTask);
  return new Result(data, index);
 }
}

protected void buildCoords(CancelTask cancelTask) throws IOException {
 List<Dataset> nestedDatasets = getDatasets();
 if (type == Type.forecastModelRunCollection) {
  for (Dataset nested : nestedDatasets) {
   DatasetOuterDimension dod = (DatasetOuterDimension) nested;
   dod.ncoord = 1;
  }
 }
 totalCoords = 0;
 for (Dataset nested : nestedDatasets) {
  DatasetOuterDimension dod = (DatasetOuterDimension) nested;
  totalCoords += dod.setStartEnd(totalCoords, cancelTask);
 }
}

public void setUp() throws IOException {
 if (ncfile != null) return;
 String filename = "file:./" + TestNcML.topDir + "aggUnion.xml";
 ncfile = NcMLReader.readNcML(filename, null);
}

@Override
protected void makeDatasets(CancelTask cancelTask) throws IOException {
 super.makeDatasets(cancelTask);
 for (Dataset ds : datasets)
  ds.enhance = fmrcEnhanceMode;
}

@Override
protected Dataset makeDataset(String cacheName, String location, String id, String ncoordS, String coordValueS, String sectionSpec,
               EnumSet<NetcdfDataset.Enhance> enhance, ucar.nc2.util.cache.FileFactory reader) {
 return new DatasetOuterDimension(cacheName, location, id, ncoordS, coordValueS, enhance, reader);
}

protected Array read(DatasetOuterDimension dset) throws IOException {
 Array data = readCached(dset);
 if (data != null) return data;
 return super.read(dset);
}

 public Result call() throws Exception {
  Array data = ds.read(mainv, cancelTask);
  return new Result(data, index);
 }
}

protected void buildCoords(CancelTask cancelTask) throws IOException {
 List<Dataset> nestedDatasets = getDatasets();
 if (type == Type.forecastModelRunCollection) {
  for (Dataset nested : nestedDatasets) {
   DatasetOuterDimension dod = (DatasetOuterDimension) nested;
   dod.ncoord = 1;
  }
 }
 totalCoords = 0;
 for (Dataset nested : nestedDatasets) {
  DatasetOuterDimension dod = (DatasetOuterDimension) nested;
  totalCoords += dod.setStartEnd(totalCoords, cancelTask);
 }
}

protected Array read(DatasetOuterDimension dset) throws IOException {
 Array data = readCached(dset);
 if (data != null) return data;
 return super.read(dset);
}

protected Array read(DatasetOuterDimension dset, NetcdfFile ncfile) throws IOException {
 Array data = readCached(dset);
 if (data != null) return data;
 return super.read(dset, ncfile);
}

protected Array read(DatasetOuterDimension dset, NetcdfFile ncfile) throws IOException {
 Array data = readCached(dset);
 if (data != null) return data;
 return super.read(dset, ncfile);
}