private void clean(JCas cas, SingleWordTermAnnotation annotation) {
Set<TermComponentAnnotation> delete = new HashSet<TermComponentAnnotation>();
AnnotationIndex<Annotation> index = cas.getAnnotationIndex(TermComponentAnnotation.type);
FSIterator<Annotation> iterator = index.subiterator(annotation);
while (iterator.hasNext()) {
TermComponentAnnotation component = (TermComponentAnnotation) iterator.next();
FSIterator<Annotation> subiterator = index.subiterator(component);
while (subiterator.hasNext()) {
delete.add((TermComponentAnnotation) subiterator.next());
}
}
for (TermComponentAnnotation del : delete) {
del.removeFromIndexes();
}
}
/** Outputs Trigrams for an input Annotation. */
public void extractNgramsFromAnnotation(Annotation annotation, JCas aJCas) {
AnnotationIndex<Annotation> tokens = aJCas.getAnnotationIndex(Token.type);
Iterator<Annotation> tIterator = tokens.subiterator(annotation);
Annotation token = null;
Annotation prev = null;
Annotation prev_prev = null;
while (tIterator.hasNext()) {
prev_prev = prev;
prev = token;
token = tIterator.next();
if (tokenIsInAnnotation(annotation, prev) && tokenIsInAnnotation(annotation, prev_prev)) {
NGram ngram = new NGram(aJCas);
FSArray ngArray = new FSArray(aJCas, 3);
ngArray.set(0, prev_prev);
ngArray.set(1, prev);
ngArray.set(2, token);
ngram.setBegin(prev_prev.getBegin());
ngram.setEnd(token.getEnd());
ngram.setElements(ngArray);
ngram.setElementType("edu.cmu.deiis.types.Token");
ngram.setConfidence(1D);
ngram.setCasProcessorId(PROCESSOR_ID);
ngram.addToIndexes();
}
}
}