/*
* 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.
*
* Access and use of this software shall impose the following obligations
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* any fee or cost, to use, copy, modify, alter, enhance and distribute
* this software, and any derivative works thereof, and its supporting
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*
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package ucar.nc2.ncml;
import junit.framework.TestCase;
import java.io.IOException;
import java.io.StringReader;
import ucar.ma2.InvalidRangeException;
import ucar.ma2.DataType;
import ucar.ma2.Array;
import ucar.ma2.IndexIterator;
import ucar.nc2.NetcdfFile;
import ucar.nc2.Variable;
import ucar.nc2.TestAll;
/**
* Class Description
*
* @author caron
* @since Jul 3, 2009
*/
public class TestValuesFromAttribute extends TestCase {
public TestValuesFromAttribute(String name) {
super(name);
}
String ncml =
"<?xml version='1.0' encoding='UTF-8'?>\n" +
"<netcdf xmlns='http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2' location='file:src/test/data/ncml/nc/lflx.mean.nc'>\n" +
" <variable name='titleAsVariable' type='String' shape=''>\n" +
" <values fromAttribute='title'/>\n" +
" </variable>\n" +
" <variable name='titleAsVariable2' type='String' shape=''>\n" +
" <values fromAttribute='@title'/>\n" +
" </variable>\n" +
" <variable name='VariableAttribute' type='double' shape='2'>\n" +
" <values fromAttribute='time@actual_range'/>\n" +
" </variable>\n" +
"</netcdf>";
public void testValuesFromAttribute() throws IOException, InvalidRangeException {
String filename = "file:./" + TestNcML.topDir + "TestValuesFromAttribute.xml";
NetcdfFile ncfile = NcMLReader.readNcML(new StringReader(ncml), filename, null);
System.out.println(" TestNcmlAggExisting.open " + filename + "\n" + ncfile);
Variable newVar = ncfile.findVariable("titleAsVariable");
assert null != newVar;
assert newVar.getShortName().equals("titleAsVariable");
assert newVar.getRank() == 0;
assert newVar.getSize() == 1;
assert newVar.getDataType() == DataType.STRING;
Array data = newVar.read();
assert data.getElementType() == String.class;
Object val = data.getObject(0);
assert val instanceof String;
assert val.equals("COADS 1-degree Equatorial Enhanced");
////////////////
newVar = ncfile.findVariable("titleAsVariable2");
assert null != newVar;
assert newVar.getShortName().equals("titleAsVariable2");
assert newVar.getRank() == 0;
assert newVar.getSize() == 1;
assert newVar.getDataType() == DataType.STRING;
data = newVar.read();
assert data.getElementType() == String.class;
val = data.getObject(0);
assert val instanceof String;
assert val.equals("COADS 1-degree Equatorial Enhanced");
///////////////
newVar = ncfile.findVariable("VariableAttribute");
assert null != newVar;
assert newVar.getShortName().equals("VariableAttribute");
assert newVar.getRank() == 1;
assert newVar.getSize() == 2;
assert newVar.getDataType() == DataType.DOUBLE;
data = newVar.read();
assert data.getRank() == 1;
assert data.getSize() == 2;
assert data.getElementType() == double.class;
double[] result = new double[] { 715511.0, 729360.0};
for (int i=0; i<result.length; i++) {
assert result[i] == data.getDouble(i);
}
ncfile.close();
}
}