for (Sentence sentence : sentences) {
text.append(sentence.getText());
}
article.setText(text.toString());
SimpleDAO simpleDAO = DAOFactory.getDao();
article.setId(simpleDAO.addObjects(article));
Map<String, SubjectsEntity> subjectsEntityMap = new HashMap<String, SubjectsEntity>();
Map<String, Double> subjectsMap = calculateSubjectFrequency();
for (String word : subjectsMap.keySet()) {
SubjectsEntity subjectsEntity = new SubjectsEntity();
subjectsEntity.setFreq(subjectsMap.get(word).floatValue());