@Override
public void process(JCas jCas) throws AnalysisEngineProcessException {
beforeProcess(jCas);
try {
for (AnnotationFS anno : JCasUtil.select(jCas, annotationType)) {
List<String> lemmas = Lists.newLinkedList();
for (Token token : JCasUtil.selectCovered(jCas, Token.class, anno)) {
Word w = token2WordIdx.get(token);
if (w == null) {
lemmas.add(token.getCoveredText());
} else {
lemmas.add(MorphCasUtils.getOnlyWordform(w).getLemma());
}
}
outEntries.add(lemmaJoiner.join(lemmas));
}
} finally {
afterProcess(jCas);
}
}
private void beforeProcess(JCas jCas) {
token2WordIdx = MorphCasUtils.getToken2WordIndex(jCas);
}