@Override
public final boolean incrementToken() throws IOException {
if (input.incrementToken()) {
if (keywordSet.contains(termAtt.buffer(), 0, termAtt.length())) {
keywordAttr.setKeyword(true);
}
return true;
} else {
return false;
}
}
@Override
public boolean incrementToken() throws IOException {
if (input.incrementToken()) {
if (!keywordAttr.isKeyword()) {
final int newlen = stemmer.stem(termAtt.buffer(), termAtt.length());
termAtt.setLength(newlen);
}
return true;
} else {
return false;
}
}
@Override
public boolean incrementToken() throws IOException {
if (input.incrementToken()) {
if (!keywordAttr.isKeyword()) {
// this stemmer increases word length by 1: worst case '*çom' -> '*ción'
final int len = termAtt.length();
final int newlen = stemmer.stem(termAtt.resizeBuffer(len + 1), len);
termAtt.setLength(newlen);
}
return true;
} else {
return false;
}
}
/** @return Returns true for next token in the stream, or false at EOS */
@Override
public boolean incrementToken() throws IOException {
if (input.incrementToken()) {
String term = termAtt.toString();
if (!keywordAttr.isKeyword()) {
String s = stemmer.stem(term);
// If not stemmed, don't waste the time adjusting the token.
if ((s != null) && !s.equals(term)) termAtt.setEmpty().append(s);
}
return true;
} else {
return false;
}
}
/**
* @return true if token was added to search/analysis stream
* @throws IOException
*/
@Override
public final boolean incrementToken() throws IOException {
if (!input.incrementToken()) {
return false;
}
Optional<CharSequence> lemma = lemmatizer.lemmatize(termAtt);
if (lemma.isPresent()) {
if (!keywordAttr.isKeyword() && !equalCharSequences(lemma.get(), termAtt)) {
termAtt.setEmpty().append(lemma.get());
}
}
return true;
}