@Override
public BytesRef next() throws IOException {
if (done) {
return null;
}
boolean success = false;
BytesRef result;
try {
String line;
if ((line = in.readLine()) != null) {
spare.copyChars(line);
result = spare;
} else {
done = true;
IOUtils.close(in);
result = null;
}
success = true;
} finally {
if (!success) {
IOUtils.closeWhileHandlingException(in);
}
}
return result;
}
protected IndexBytesValues(String index) {
super(false);
scratch = new BytesRef();
scratch.copyChars(index);
}