/*
* Copyright (c) 1998 - 2010. 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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* any fee or cost, to use, copy, modify, alter, enhance and distribute
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package ucar.nc2.dt.grid;
import junit.framework.TestCase;
import ucar.ma2.Array;
import ucar.ma2.DataType;
import ucar.nc2.Group;
import ucar.nc2.NetcdfFile;
import ucar.nc2.NetcdfFileWriteable;
import ucar.nc2.TestAll;
import ucar.nc2.dt.GridDatatype;
import ucar.nc2.util.IO;
import ucar.unidata.io.RandomAccessFile;
import java.io.File;
import java.io.IOException;
/**
* Describe
*
* @author caron
* @since Apr 13, 2010
*/
public class TestGridClose extends TestCase {
private String newVarName = "some_data";
public TestGridClose(String name) {
super(name);
}
public void testClose() throws IOException {
File org = new File(TestAll.cdmLocalTestDataDir + "rankTest.nc");
File copy = new File(TestAll.temporaryLocalDataDir + "rankTest.nc");
IO.copyFile(org, copy);
String url = copy.getPath();
RandomAccessFile.setDebugLeaks(true);
openDatasetAndView(url);
alterExistingFile(url);
checkFile(url);
TestAll.checkLeaks();
}
public void openDatasetAndView(String url) throws IOException {
GridDataset dataset = null;
Array temp_data;
try {
dataset = GridDataset.open(url);
for (GridDatatype grid : dataset.getGrids()) {
temp_data = grid.readDataSlice(0, 0, -1, -1);
System.err.println("Min is: " + grid.getMinMaxSkipMissingData(temp_data).min);
System.err.println("Max is: " + grid.getMinMaxSkipMissingData(temp_data).max);
}
} finally {
if (dataset != null) {
dataset.getNetcdfFile().close();
dataset.close();
}
}
}
public void alterExistingFile(String url) throws IOException {
NetcdfFileWriteable file = null;
try {
file = NetcdfFileWriteable.openExisting(url, false);
file.setRedefineMode(true);
//Group rootGroup = file.getRootGroup();
//Group headerDataGroup = new Group(file, rootGroup, "header_data");
//file.addGroup(rootGroup, headerDataGroup);
file.addVariable(null, newVarName, DataType.FLOAT, "z y x");
} finally {
if (file != null) {
file.setRedefineMode(false);
file.flush();
file.close();
}
}
}
public void checkFile(String url) throws IOException {
NetcdfFile file = null;
try {
file = NetcdfFile.open(url, null);
System.out.printf("%s%n", file);
assert file.findVariable(newVarName) != null;
} finally {
if (file != null) {
file.close();
}
}
}
}