// $Id: TestOpenInMemory.java 51 2006-07-12 17:13:13Z caron $
/*
* Copyright 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;
import junit.framework.TestCase;
import ucar.ma2.Array;
import ucar.ma2.Index;
import ucar.ma2.InvalidRangeException;
import ucar.ma2.ArrayChar;
import ucar.nc2.util.IO;
import ucar.unidata.util.test.TestDir;
import java.io.IOException;
public class TestOpenInMemory extends TestCase {
public TestOpenInMemory( String name) {
super(name);
}
private NetcdfFile openInMemory( String filename) throws IOException {
String pathname = TestDir.cdmLocalTestDataDir +filename;
System.out.println("**** OpenInMemory "+pathname);
byte[] ba = IO.readFileToByteArray( pathname);
NetcdfFile ncfile = NetcdfFile.openInMemory("OpenInMemory", ba);
System.out.println(ncfile);
return ncfile;
}
public void testRead() throws IOException {
NetcdfFile ncfile = openInMemory("testWrite.nc");
assert(null != ncfile.findDimension("lat"));
assert(null != ncfile.findDimension("lon"));
Variable temp = null;
assert(null != (temp = ncfile.findVariable("temperature")));
// read entire array
Array A;
try {
A = temp.read();
} catch (IOException e) {
System.err.println("ERROR reading file");
assert(false);
return;
}
assert (A.getRank() == 2);
int i,j;
Index ima = A.getIndex();
int[] shape = A.getShape();
assert shape[0] == 64;
assert shape[1] == 128;
for (i=0; i<shape[0]; i++) {
for (j=0; j<shape[1]; j++) {
double dval = A.getDouble(ima.set(i,j));
assert( dval == (double) (i*1000000+j*1000)) : dval;
}
}
// read part of array
int[] origin2 = new int[2];
int[] shape2 = new int[2];
shape2[0] = 1;
shape2[1] = temp.getShape()[1];
try {
A = temp.read(origin2, shape2);
} catch (InvalidRangeException e) {
System.err.println("ERROR reading file " +e);
assert(false);
return;
} catch (IOException e) {
System.err.println("ERROR reading file");
assert(false);
return;
}
assert (A.getRank() == 2);
for (j=0; j<shape2[1]; j++) {
assert( A.getDouble(ima.set(0,j)) == (double) (j*1000));
}
// rank reduction
Array Areduce = A.reduce();
Index ima2 = Areduce.getIndex();
assert (Areduce.getRank() == 1);
for (j=0; j<shape2[1]; j++) {
assert( Areduce.getDouble(ima2.set(j)) == (double) (j*1000));
}
// read char variable
Variable c = null;
assert(null != (c = ncfile.findVariable("svar")));
try {
A = c.read();
} catch (IOException e) {
assert(false);
}
assert(A instanceof ArrayChar);
ArrayChar ac = (ArrayChar) A;
String val = ac.getString(ac.getIndex());
assert val.equals("Testing 1-2-3") : val;
//System.out.println( "val = "+ val);
// read char variable 2
Variable c2 = null;
assert(null != (c2 = ncfile.findVariable("svar2")));
try {
A = c2.read();
} catch (IOException e) {
assert(false);
}
assert(A instanceof ArrayChar);
ArrayChar ac2 = (ArrayChar) A;
assert(ac2.getString().equals("Two pairs of ladies stockings!"));
// read String Array
Variable c3 = null;
assert(null != (c3 = ncfile.findVariable("names")));
try {
A = c3.read();
} catch (IOException e) {
assert(false);
}
assert(A instanceof ArrayChar);
ArrayChar ac3 = (ArrayChar) A;
ima = ac3.getIndex();
assert(ac3.getString(ima.set(0)).equals("No pairs of ladies stockings!"));
assert(ac3.getString(ima.set(1)).equals("One pair of ladies stockings!"));
assert(ac3.getString(ima.set(2)).equals("Two pairs of ladies stockings!"));
// read String Array - 2
Variable c4 = null;
assert(null != (c4 = ncfile.findVariable("names2")));
try {
A = c4.read();
} catch (IOException e) {
assert(false);
}
assert(A instanceof ArrayChar);
ArrayChar ac4 = (ArrayChar) A;
ima = ac4.getIndex();
assert(ac4.getString(0).equals("0 pairs of ladies stockings!"));
assert(ac4.getString(1).equals("1 pair of ladies stockings!"));
assert(ac4.getString(2).equals("2 pairs of ladies stockings!"));
//System.out.println( "ncfile = "+ ncfile);
ncfile.close();
System.out.println( "**************TestRead done");
}
}