private void convertConstituent(
View aView, org.apache.uima.jcas.tcas.Annotation aNode, Set<String> aConstituents) {
if (aNode instanceof Constituent) {
// LAPPS constituents inherit from Relation which has no offsets
Annotation constituent =
aView.newAnnotation(id(CONSTITUENT, aNode), Discriminators.Uri.CONSTITUENT);
aConstituents.add(constituent.getId());
for (org.apache.uima.jcas.tcas.Annotation child :
select(((Constituent) aNode).getChildren(), org.apache.uima.jcas.tcas.Annotation.class)) {
convertConstituent(aView, child, aConstituents);
}
} else if (aNode instanceof Token) {
aConstituents.add(id(TOKEN, aNode));
} else {
throw new IllegalStateException("Unexpected node type: " + aNode);
}
}
@Override
public void process(JCas aJCas) throws AnalysisEngineProcessException {
// Convert UIMA to LIF Container
Container container = new Container();
container.setLanguage(aJCas.getDocumentLanguage());
container.setText(aJCas.getDocumentText());
View view = container.newView();
// Paragraph
for (Paragraph p : select(aJCas, Paragraph.class)) {
view.newAnnotation(id(PARAGRAPH, p), Discriminators.Uri.PARAGRAPH, p.getBegin(), p.getEnd());
}
// Sentence
for (Sentence s : select(aJCas, Sentence.class)) {
view.newAnnotation(id(SENTENCE, s), Discriminators.Uri.SENTENCE, s.getBegin(), s.getEnd());
}
// Token, POS, Lemma
for (Token t : select(aJCas, Token.class)) {
Annotation a =
view.newAnnotation(id(TOKEN, t), Discriminators.Uri.TOKEN, t.getBegin(), t.getEnd());
if (t.getPos() != null) {
a.addFeature(Features.Token.POS, t.getPos().getPosValue());
}
if (t.getLemma() != null) {
a.addFeature(Features.Token.LEMMA, t.getLemma().getValue());
}
}
// NamedEntity
for (NamedEntity neAnno : select(aJCas, NamedEntity.class)) {
Annotation ne =
view.newAnnotation(
id(NAMED_ENTITY, neAnno), Discriminators.Uri.NE, neAnno.getBegin(), neAnno.getEnd());
ne.setLabel(neAnno.getValue());
}
// Dependency
for (Sentence s : select(aJCas, Sentence.class)) {
Set<String> depRelIds = new TreeSet<>();
for (Dependency dep : selectCovered(Dependency.class, s)) {
String depRelId = id(DEPENDENCY, dep);
// LAPPS dependencies inherit from Relation which has no offsets
Annotation depRel = view.newAnnotation(depRelId, Discriminators.Uri.DEPENDENCY);
depRel.setLabel(dep.getDependencyType());
depRel.addFeature(Features.Dependency.GOVERNOR, id(TOKEN, dep.getGovernor()));
depRel.addFeature(Features.Dependency.DEPENDENT, id(TOKEN, dep.getDependent()));
depRelIds.add(depRelId);
}
if (!depRelIds.isEmpty()) {
Annotation depStruct =
view.newAnnotation(
id(DEPENDENCY_STRUCTURE, s),
Discriminators.Uri.DEPENDENCY_STRUCTURE,
s.getBegin(),
s.getEnd());
depStruct.addFeature(Features.DependencyStructure.DEPENDENCIES, depRelIds);
}
}
// Constituents
for (ROOT r : select(aJCas, ROOT.class)) {
Set<String> constituents = new LinkedHashSet<>();
convertConstituent(view, r, constituents);
Annotation phraseStruct =
view.newAnnotation(
id(PHRASE_STRUCTURE, r),
Discriminators.Uri.PHRASE_STRUCTURE,
r.getBegin(),
r.getEnd());
phraseStruct.addFeature(Features.PhraseStructure.CONSTITUENTS, constituents);
}
try (OutputStream docOS = getOutputStream(aJCas, filenameSuffix)) {
String json = Serializer.toPrettyJson(container);
IOUtils.write(json, docOS, encoding);
} catch (Exception e) {
throw new AnalysisEngineProcessException(e);
}
}