private static Unit getUnit(String[] unitAcronyms, int maxIndex)
throws NonExistingServiceException {
Unit unit = UnitUtils.readInstitutionUnit();
if (unit == null
|| StringUtils.isEmpty(unit.getAcronym())
|| !unit.getAcronym().equals(unitAcronyms[0])) {
throw new NonExistingServiceException();
}
for (int i = 1; i <= maxIndex; i++) {
unit = unit.getChildUnitByAcronym(unitAcronyms[i]);
if (unit == null) {
throw new NonExistingServiceException();
}
}
return unit;
}
