/*
* Copyright (c) 1998 - 2009. University Corporation for Atmospheric Research/Unidata
* Portions of this software were developed by the Unidata Program at the
* University Corporation for Atmospheric Research.
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package ucar.nc2.dt.grid;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import ucar.nc2.Variable;
import ucar.nc2.dt.GridDatatype;
import ucar.nc2.time.CalendarDate;
import ucar.nc2.time.CalendarDateRange;
import ucar.unidata.geoloc.LatLonRect;
import ucar.unidata.geoloc.LatLonPointImpl;
import ucar.unidata.util.test.category.NeedsCdmUnitTest;
import ucar.unidata.util.test.TestDir;
import java.util.List;
import java.util.ArrayList;
import static org.junit.Assert.assertTrue;
/**
* Use CFGridWriter to write a netcdf-3 file
*
* @author caron
* @since May 28, 2009
*/
@Category(NeedsCdmUnitTest.class)
public class TestCFWriter {
@Test
public void testSubset() throws Exception {
String fileIn = TestDir.cdmUnitTestDir + "ft/grid/testCFwriter.nc";
String fileOut = TestDir.temporaryLocalDataDir + "testCFwriter.nc";
String varName = "Temperature";
ucar.nc2.dt.grid.GridDataset gds = GridDataset.open(fileIn);
List<String> gridList = new ArrayList<>();
gridList.add(varName);
CFGridWriter writer = new CFGridWriter();
writer.makeFile(fileOut, gds, gridList,
new LatLonRect(new LatLonPointImpl(30, -109), 10, 50),
null,
true,
1, 1, 1);
gds.close();
ucar.nc2.dt.grid.GridDataset result = GridDataset.open(fileOut);
GeoGrid grid = result.findGridByName(varName);
assertTrue(grid != null);
result.close();
}
@Test
public void testSizeEstimate() throws Exception {
String fileIn = TestDir.cdmUnitTestDir + "ft/grid/testCFwriter.nc";
System.out.printf("Open %s%n", fileIn);
ucar.nc2.dt.grid.GridDataset gds = GridDataset.open(fileIn);
List<String> gridList = new ArrayList<String>();
for (GridDatatype grid : gds.getGrids()) {
Variable v = grid.getVariable();
System.out.printf(" %20s == %d%n", grid.getName(), v.getSize() * v.getElementSize());
gridList.add(grid.getName());
}
CFGridWriter writer = new CFGridWriter();
// makeGridFileSizeEstimate(ucar.nc2.dt.GridDataset gds, List<String> gridList,
// LatLonRect llbb, int horizStride, Range zRange, CalendarDateRange dateRange, int stride_time, boolean addLatLon)
long totalSize = writer.makeGridFileSizeEstimate(gds, gridList, (LatLonRect) null, 1, null, null, 1, false);
long subsetSize = writer.makeGridFileSizeEstimate(gds, gridList, new LatLonRect(new LatLonPointImpl(30, -109), 10, 50), 1, null, null, 1, false);
System.out.printf("total size = %d%n", totalSize);
System.out.printf("subset size = %d%n", subsetSize);
assertTrue(subsetSize < totalSize);
String varName = "Temperature";
gridList = new ArrayList<String>();
gridList.add(varName);
totalSize = writer.makeGridFileSizeEstimate(gds, gridList, (LatLonRect) null, 1, null, null, 1, false);
subsetSize = writer.makeGridFileSizeEstimate(gds, gridList, new LatLonRect(new LatLonPointImpl(30, -109), 10, 50), 1, null, null, 1, false);
System.out.printf("total size Temp only = %d%n", totalSize);
System.out.printf("subset size Temp only = %d%n", subsetSize);
assertTrue(subsetSize < totalSize);
gds.close();
}
@Test
public void testSizeEstimateTimeSubset() throws Exception {
String fileIn = TestDir.cdmUnitTestDir + "ft/grid/cg/cg.ncml";
System.out.printf("Open %s%n", fileIn);
ucar.nc2.dt.grid.GridDataset gds = GridDataset.open(fileIn);
List<String> gridList = new ArrayList<String>();
for (GridDatatype grid : gds.getGrids()) {
Variable v = grid.getVariable();
System.out.printf(" %20s == %d%n", grid.getName(), v.getSize() * v.getElementSize());
gridList.add(grid.getName());
}
CFGridWriter writer = new CFGridWriter();
CalendarDateRange dateRange = CalendarDateRange.of(CalendarDate.parseISOformat(null, "2006-06-07T12:00:00Z"), CalendarDate.parseISOformat(null, "2006-06-07T13:00:00Z"));
long totalSize = writer.makeGridFileSizeEstimate(gds, gridList, (LatLonRect) null, 1, null, null, 1, false);
long subsetSize = writer.makeGridFileSizeEstimate(gds, gridList, (LatLonRect) null, 1, null, dateRange, 1, false);
System.out.printf("total size Temp only = %d%n", totalSize);
System.out.printf("subset size with date range = %d%n", subsetSize);
assertTrue(subsetSize < totalSize);
gds.close();
}
}