@Test
public void testFloatingPointCompare() throws Exception {
String spec =
TestDir.cdmUnitTestDir + "ft/fmrc/fp_precision/sediment_thickness_#yyMMddHHmm#.*\\.nc$";
System.out.printf("%n====================FMRC dataset %s%n", spec);
Formatter errlog = new Formatter();
Fmrc fmrc = Fmrc.open(spec, errlog);
assert (fmrc != null) : errlog;
try (ucar.nc2.dt.GridDataset gridDs = fmrc.getDatasetBest()) {
GridDatatype v = gridDs.findGridByShortName("thickness_of_sediment");
assert v != null;
GridCoordSystem gcs = v.getCoordinateSystem();
CoordinateAxis1DTime time = gcs.getTimeAxis1D();
Assert.assertEquals("hours since 2015-03-08 12:51:00.000 UTC", time.getUnitsString());
Assert.assertEquals(74, time.getSize());
Array data = time.read();
System.out.printf("%s%n", NCdumpW.toString(data));
for (CalendarDate cd : time.getCalendarDates()) {
assert cd.getFieldValue(CalendarPeriod.Field.Minute) == 0 : System.out.printf("%s%n", cd);
}
}
}
public static DateRange extractDateRange(GridDataset gridDataset) {
DateRange maxDateRange = null;
for (GridDataset.Gridset gridset : gridDataset.getGridsets()) {
GridCoordSystem gsys = gridset.getGeoCoordSystem();
DateRange dateRange;
CoordinateAxis1DTime time1D = gsys.getTimeAxis1D();
if (time1D != null) {
dateRange = time1D.getDateRange();
} else {
CoordinateAxis time = gsys.getTimeAxis();
if (time == null) continue;
try {
DateUnit du = new DateUnit(time.getUnitsString());
Date minDate = du.makeDate(time.getMinValue());
Date maxDate = du.makeDate(time.getMaxValue());
dateRange = new DateRange(minDate, maxDate);
} catch (Exception e) {
logger.warn("Illegal Date Unit " + time.getUnitsString());
continue;
}
}
if (maxDateRange == null) maxDateRange = dateRange;
else maxDateRange.extend(dateRange);
}
return maxDateRange;
}
public File writeCoverageDataToFile(
WcsRequest.Format format,
LatLonRect bboxLatLonRect,
AxisSubset vertSubset,
List<String> rangeSubset,
CalendarDateRange timeRange)
throws WcsException {
boolean zRangeDone = false;
boolean tRangeDone = false;
try {
// Get the height range.
Range zRange = vertSubset != null ? vertSubset.getRange() : null;
zRangeDone = true;
// Get the time range.
Range tRange = null;
if (timeRange != null) {
CoordinateAxis1DTime timeAxis = this.coordSys.getTimeAxis1D();
int startIndex = timeAxis.findTimeIndexFromCalendarDate(timeRange.getStart());
int endIndex = timeAxis.findTimeIndexFromCalendarDate(timeRange.getEnd());
tRange = new Range(startIndex, endIndex);
tRangeDone = true;
}
if (format == WcsRequest.Format.GeoTIFF || format == WcsRequest.Format.GeoTIFF_Float) {
if (rangeSubset.size() != 1) {
String msg =
"GeoTIFF response encoding only available for single range field selection ["
+ rangeSubset
+ "].";
log.error("writeCoverageDataToFile(): " + msg);
throw new WcsException(WcsException.Code.InvalidParameterValue, "RangeSubset", msg);
}
String reqRangeFieldName = rangeSubset.get(0);
File dir = new File(getDiskCache().getRootDirectory());
File tifFile = File.createTempFile("WCS", ".tif", dir);
if (log.isDebugEnabled())
log.debug("writeCoverageDataToFile(): tifFile=" + tifFile.getPath());
WcsRangeField rangeField = this.range.get(reqRangeFieldName);
GridDatatype subset =
rangeField.getGridDatatype().makeSubset(tRange, zRange, bboxLatLonRect, 1, 1, 1);
Array data = subset.readDataSlice(0, 0, -1, -1);
GeotiffWriter writer = new GeotiffWriter(tifFile.getPath());
writer.writeGrid(
this.dataset.getDataset(), subset, data, format == WcsRequest.Format.GeoTIFF);
writer.close();
return tifFile;
} else if (format == WcsRequest.Format.NetCDF3) {
File dir = new File(getDiskCache().getRootDirectory());
File outFile = File.createTempFile("WCS", ".nc", dir);
if (log.isDebugEnabled())
log.debug("writeCoverageDataToFile(): ncFile=" + outFile.getPath());
// WTF ?? this.coordSys.getVerticalAxis().isNumeric();
NetcdfFileWriter writer =
NetcdfFileWriter.createNew(NetcdfFileWriter.Version.netcdf3, outFile.getAbsolutePath());
CFGridWriter2.writeFile(
this.dataset.getDataset(),
rangeSubset,
bboxLatLonRect,
null,
1,
zRange,
timeRange,
1,
true,
writer);
return outFile;
} else {
log.error(
"writeCoverageDataToFile(): Unsupported response encoding format [" + format + "].");
throw new WcsException(
WcsException.Code.InvalidFormat,
"Format",
"Unsupported response encoding format [" + format + "].");
}
} catch (InvalidRangeException e) {
String msg = "Failed to subset coverage [" + this.getName();
if (!zRangeDone) msg += "] along vertical axis [" + vertSubset + "]. ";
else if (!tRangeDone) msg += "] along time axis [" + timeRange + "]. ";
else msg += "] in horizontal plane [" + bboxLatLonRect + "]. ";
log.error("writeCoverageDataToFile(): " + msg + e.getMessage());
throw new WcsException(WcsException.Code.CoverageNotDefined, "", msg);
} catch (IOException e) {
log.error(
"writeCoverageDataToFile(): Failed to write file for requested coverage <"
+ this.getName()
+ ">: "
+ e.getMessage());
throw new WcsException(
WcsException.Code.UNKNOWN, "", "Problem creating coverage [" + this.getName() + "].");
}
}