@Test
public void testCacheIsUsed() throws IOException, InvalidRangeException {
String filename = "file:TestAggExistingCache.xml";
System.out.printf("%s%n", filename);
String cacheDirName = TestDir.temporaryLocalDataDir + "testAggExistingCache/";
System.out.printf("cacheDir=%s%n", cacheDirName);
File cacheDir = new File(cacheDirName);
FileUtils.deleteDirectory(cacheDir); // from commons-io
assert !cacheDir.exists();
DiskCache2 cache = new DiskCache2(cacheDirName, false, 0, 0);
cache.setAlwaysUseCache(true);
Assert.assertEquals(cache.getRootDirectory(), cacheDirName);
assert new File(cache.getRootDirectory()).exists();
Aggregation.setPersistenceCache(cache);
AggregationExisting.countCacheUse = 0;
try (NetcdfFile ncfile = NcMLReader.readNcML(new StringReader(ncml), filename, null)) {
System.out.println(" TestNcmlAggExisting.open " + filename);
Array ATssta = ncfile.readSection("ATssta(:,0,0,0)");
Assert.assertEquals(4, ATssta.getSize());
}
Assert.assertEquals(0, AggregationExisting.countCacheUse);
AggregationExisting.countCacheUse = 0;
try (NetcdfFile ncfile = NcMLReader.readNcML(new StringReader(ncml), filename, null)) {
System.out.println(" TestNcmlAggExisting.open " + filename);
Array ATssta = ncfile.readSection("ATssta(:,0,0,0)");
Assert.assertEquals(4, ATssta.getSize());
}
Assert.assertEquals(8, AggregationExisting.countCacheUse);
}
public void testScan() throws IOException, InvalidRangeException {
String xml =
"<?xml version='1.0' encoding='UTF-8'?>\n"
+ "<netcdf xmlns='http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2'>\n"
+ " <variable name='time' type='int' shape='time'>\n"
+ " <attribute name='long_name' type='string' value='time coordinate' />\n"
+ " <attribute name='units' type='string' value='days since 2001-8-31 00:00:00 UTC' />\n"
+ " <values start='0' increment='10' />\n"
+ " </variable>\n"
+ " <aggregation dimName='time' type='joinNew'>\n"
+ " <variableAgg name='T'/>\n"
+ " <scan location='src/test/data/ncml/nc/' suffix='Dir.nc' subdirs='false'/>\n"
+ " </aggregation>\n"
+ "</netcdf>";
String filename = "file:./" + TestNcML.topDir + "aggSynScan.xml";
NetcdfFile ncfile = NcMLReader.readNcML(new StringReader(xml), null);
testDimensions(ncfile);
testCoordVar(ncfile);
testAggCoordVarScan(ncfile);
testReadData(ncfile, "T");
testReadSlice(ncfile, "T");
ncfile.close();
}
@Ignore("files not available")
@Test
public void testCacheTiming() throws IOException, InvalidRangeException {
String filename = "file:testCacheTiming.xml";
System.out.printf("%s%n", filename);
String cacheDirName = TestDir.temporaryLocalDataDir + "testAggExistingCache/";
System.out.printf("cacheDir=%s%n", cacheDirName);
File cacheDir = new File(cacheDirName);
FileUtils.deleteDirectory(cacheDir); // from commons-io
assert !cacheDir.exists();
DiskCache2 cache = new DiskCache2(cacheDirName, false, 0, 0);
cache.setAlwaysUseCache(true);
Assert.assertEquals(cache.getRootDirectory(), cacheDirName);
assert new File(cache.getRootDirectory()).exists();
Aggregation.setPersistenceCache(cache);
AggregationExisting.countCacheUse = 0;
long start = System.currentTimeMillis();
try (NetcdfFile ncfile = NcMLReader.readNcML(new StringReader(ncml2), filename, null)) {
System.out.printf("%nTestNcmlAggExisting.open %s%n", filename);
Variable time = ncfile.findVariable("time");
System.out.printf(" Variable %s%n", time.getNameAndDimensions());
time.read();
}
System.out.printf(" countCacheUse = %d%n", AggregationExisting.countCacheUse);
long took = System.currentTimeMillis() - start;
System.out.printf(" first took %d msecs%n", took);
AggregationExisting.countCacheUse = 0;
start = System.currentTimeMillis();
try (NetcdfFile ncfile = NcMLReader.readNcML(new StringReader(ncml2), filename, null)) {
System.out.printf("%nTestNcmlAggExisting.open %s%n", filename);
Variable time = ncfile.findVariable("time");
System.out.printf(" Variable %s%n", time.getNameAndDimensions());
time.read();
}
System.out.printf(" countCacheUse = %d%n", AggregationExisting.countCacheUse);
took = System.currentTimeMillis() - start;
System.out.printf(" second took %d msecs%n", took);
}
public void setUp() {
try {
ncfile = NcMLReader.readNcML(location, null);
// System.out.println("ncfile opened = "+location);
} catch (java.net.MalformedURLException e) {
System.out.println("bad URL error = " + e);
} catch (IOException e) {
System.out.println("IO error = " + e);
e.printStackTrace();
}
}
public void testUpdate() throws IOException, InvalidRangeException, InterruptedException {
String dir = TestAll.cdmUnitTestDir + "agg/updating";
File dirFile = new File(dir);
assert dirFile != null;
assert dirFile.exists();
assert dirFile.isDirectory();
// make sure that the extra file is not in the agg
for (File f : dirFile.listFiles()) {
if (f.getName().equals("extra.nc")) {
if (!f.renameTo(new File(dirFile, "extra.wait"))) {
System.out.printf("Rename fails on %s.extra.nc %n", dirFile);
}
break;
}
}
String ncml =
"<?xml version='1.0' encoding='UTF-8'?>\n"
+ "<netcdf xmlns='http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2'>\n"
+ " <aggregation dimName='time' type='joinExisting' recheckEvery='1 nsec'>\n"
+ " <scan location='"
+ dir
+ "' suffix='*.nc' />\n"
+ " <variable name='depth'>\n"
+ " <attribute name='coordinates' value='lon lat'/>\n"
+ " </variable>\n"
+ " <variable name='wvh'>\n"
+ " <attribute name='coordinates' value='lon lat'/>\n"
+ " </variable>\n"
+ " </aggregation>\n"
+ " <attribute name='Conventions' type='String' value='CF-1.0'/>\n"
+ "</netcdf>";
String location = dir + "agg/updating.ncml";
System.out.println(" TestOffAggExistingTimeUnitsChange.testNarrGrib=\n" + ncml);
NetcdfFile ncfile = NcMLReader.readNcML(new StringReader(ncml), location, null);
check(ncfile, 12);
// make sure that the extra file is in the agg
for (File f : dirFile.listFiles()) {
if (f.getName().equals("extra.wait")) {
if (!f.renameTo(new File(dirFile, "extra.nc")))
System.out.println(" rename fails on " + f.getPath());
break;
}
}
ncfile.sync();
check(ncfile, 18);
ncfile.close();
}
public void testNoCoord() throws IOException, InvalidRangeException {
String filename = "file:./" + TestNcML.topDir + "aggSynNoCoord.xml";
NetcdfFile ncfile = NcMLReader.readNcML(filename, null);
testDimensions(ncfile);
testCoordVar(ncfile);
testAggCoordVarNoCoord(ncfile);
testReadData(ncfile, "T");
testReadSlice(ncfile, "T");
ncfile.close();
}
public void test1() throws IOException, InvalidRangeException {
String filename = "file:./" + TestNcML.topDir + "aggSynthetic.xml";
NetcdfFile ncfile = NcMLReader.readNcML(filename, null);
Variable v = ncfile.findVariable("time");
assert v != null;
String testAtt = ncfile.findAttValueIgnoreCase(v, "units", null);
assert testAtt != null;
assert testAtt.equals("months since 2000-6-16 6:00");
testDimensions(ncfile);
testCoordVar(ncfile);
testAggCoordVar(ncfile);
testReadData(ncfile, "T");
testReadSlice(ncfile, "T");
ncfile.close();
}
public void testRename() throws IOException, InvalidRangeException {
String xml =
"<?xml version='1.0' encoding='UTF-8'?>\n"
+ "<netcdf xmlns='http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2'>\n"
+ " <variable name='Temperature' orgName='T' />\n"
+ " <aggregation dimName='time' type='joinNew'>\n"
+ " <variableAgg name='T'/>\n"
+ " <scan location='src/test/data/ncml/nc/' suffix='Dir.nc' subdirs='false'/>\n"
+ " </aggregation>\n"
+ "</netcdf>";
String filename = "file:./" + TestNcML.topDir + "aggSynRename.xml";
NetcdfFile ncfile = NcMLReader.readNcML(new StringReader(xml), null);
testDimensions(ncfile);
testCoordVar(ncfile);
testAggCoordVarNoCoordsDir(ncfile);
testReadData(ncfile, "Temperature");
testReadSlice(ncfile, "Temperature");
ncfile.close();
}
