@Override
public void compute(Quad quad) {
logger.debug("Computing : {} ", quad.asTriple().toString());
Node subject = quad.getSubject();
Node object = quad.getObject();
if (quad.getObject().equals(FOAF.Document.asNode())) {
docs.putIfAbsent(subject.toString(), new DigitalSignature());
}
if (quad.getPredicate().equals(ASSURANCE.asNode())) {
DigitalSignature ds;
if (endorsements.containsKey(object.getURI())) {
ds = endorsements.get(object.getURI());
} else {
ds = new DigitalSignature();
ds.endorcement = object.getURI();
}
ds.assurance = subject.getURI();
docs.put(subject.toString(), ds);
endorsements.put(object.getURI(), ds);
}
if (quad.getPredicate().equals(ENDORSER.asNode())) {
DigitalSignature ds;
if (endorsements.containsKey(object.getURI())) {
ds = endorsements.get(object.getURI());
} else {
ds = new DigitalSignature();
ds.endorcement = subject.getURI();
}
ds.endorcer = object.getURI();
}
if (quad.getObject().equals(ENDORSEMENT.asNode())) {
DigitalSignature ds = new DigitalSignature();
ds.endorcement = subject.getURI();
endorsements.putIfAbsent(subject.getURI(), ds);
}
}
