@Override
public int read() throws IOException {
if (resetPoint == -1) {
// If I have read nothing yet, remember the reset point in the feed.
resetPoint = feed.size();
}
if (!useAlternate) {
try {
return super.read();
} catch (EmptyDocumentException e) {
switchToAlternate();
} catch (BigDocumentException e) {
LOGGER.finer(
"Document content exceeds the maximum configured "
+ "document size, discarding content.");
switchToAlternate();
}
}
return alternate.read();
}
// Reset the feed to its position when we started reading this stream,
// and start reading from the alternate input.
private void switchToAlternate() {
if (feed != null) {
feed.reset(resetPoint);
}
useAlternate = true;
}