private void initHRegion(
byte[] tableName, String callingMethod, Configuration conf, byte[]... families)
throws IOException {
HTableDescriptor htd = new HTableDescriptor(tableName);
for (byte[] family : families) {
htd.addFamily(new HColumnDescriptor(family));
}
HRegionInfo info = new HRegionInfo(htd.getName(), null, null, false);
Path path = new Path(DIR + callingMethod);
if (fs.exists(path)) {
if (!fs.delete(path, true)) {
throw new IOException("Failed delete of " + path);
}
}
region = HRegion.createHRegion(info, path, conf, htd);
}
@Test
public void testCreateAndUpdate() throws IOException {
Path testdir = UTIL.getDataTestDir("testCreateAndUpdate");
HTableDescriptor htd = new HTableDescriptor("testCreate");
FileSystem fs = FileSystem.get(UTIL.getConfiguration());
assertTrue(FSTableDescriptors.createTableDescriptor(fs, testdir, htd));
assertFalse(FSTableDescriptors.createTableDescriptor(fs, testdir, htd));
FileStatus[] statuses = fs.listStatus(testdir);
assertTrue("statuses.length=" + statuses.length, statuses.length == 1);
for (int i = 0; i < 10; i++) {
FSTableDescriptors.updateHTableDescriptor(fs, testdir, htd);
}
statuses = fs.listStatus(testdir);
assertTrue(statuses.length == 1);
Path tmpTableDir = new Path(FSUtils.getTablePath(testdir, htd.getName()), ".tmp");
statuses = fs.listStatus(tmpTableDir);
assertTrue(statuses.length == 0);
}