private static void runCommand(HiveClient hive, String command)
throws HiveServerException, TException {
int batchSize = 80;
hive.execute(command);
List<String> results;
do {
results = hive.fetchN(batchSize);
} while (results.size() == batchSize);
}
private static List<String> runCommand(HiveClient hive, String command)
throws DataAccessException {
try {
hive.execute(command);
return hive.fetchAll();
} catch (Exception ex) {
try {
hive.clean();
} catch (Exception exc) {
}
if (ex instanceof HiveServerException) {
throw convert((HiveServerException) ex);
}
throw convert((TException) ex);
}
}
static List<String> run(HiveClient hive, Iterable<HiveScript> scripts, boolean closeHive)
throws DataAccessException {
List<String> results = new ArrayList<String>();
try {
for (HiveScript hiveScript : scripts) {
results.addAll(run(hive, hiveScript));
}
} finally {
try {
if (closeHive) {
hive.shutdown();
}
} catch (Exception ex) {
}
}
return results;
}
private static void runScript(HiveClient hive, Resource resource, String encoding)
throws Exception {
InputStream stream = resource.getInputStream();
BufferedReader reader =
new BufferedReader(
(StringUtils.hasText(encoding)
? new InputStreamReader(stream, encoding)
: new InputStreamReader(stream)));
String line = null;
try {
String command = "";
while ((line = reader.readLine()) != null) {
// strip whitespace
line = line.trim();
// ignore comments
if (!line.startsWith("--")) {
for (String token : line.split(";")) {
token = token.trim();
// skip empty lines
if (!StringUtils.hasText(token)) {
continue;
}
if (token.endsWith("\\")) {
command.concat(token);
continue;
} else {
command = token;
}
runCommand(hive, command);
command = "";
}
}
}
} catch (Exception ex) {
try {
hive.clean();
} catch (Exception exc) {
}
} finally {
IOUtils.closeStream(reader);
}
}
