public float getConfidence(Patient subject, MedicFormResponse mfr) {
   List<MedicFormFieldResponse> responses = formFieldResponseDao.getResponsesForFormResponse(mfr);
   float result = 0.0F;
   float total = 0.0F;
   for (MedicFormFieldResponse fieldResponse : responses) {
     // if it is mapped to a namefield, score it as a name
     if (fieldResponse.getField().getMapping() == PatientFieldMapping.NAMEFIELD) {
       result += getNameDistance(subject.getName(), fieldResponse.getValue());
       total += 1.0F;
       // if it is mapped to an id field, score it as an ID
     } else if (fieldResponse.getField().getMapping() == PatientFieldMapping.IDFIELD) {
       result += getEditDistance(subject.getStringID(), fieldResponse.getValue());
       total += 1.0F;
       // if it is mapped as a bday field, score it as a bday
     } else if (fieldResponse.getField().getMapping() == PatientFieldMapping.BIRTHDATEFIELD) {
       if (fieldResponse.getValue().length() <= 8) {
         result +=
             getEditDistance(
                 shortFormatter.format(subject.getBirthdate()), fieldResponse.getValue());
       } else {
         result +=
             getEditDistance(
                 longFormatter.format(subject.getBirthdate()), fieldResponse.getValue());
       }
       total += 1.0F;
     }
   }
   return (result / total) * 100;
 }
  public List<Candidate> getCandidatesForResponse(MedicFormResponse response) {
    Log.info("Attempting to map response");
    // get the CHW that submitted the form
    CommunityHealthWorker chw = (CommunityHealthWorker) response.getSubmitter();
    // get the list of patients that the CHW cares for
    ArrayList<Patient> patients = (ArrayList<Patient>) patientDao.getPatientsForCHW(chw);
    ArrayList<Candidate> candidates = new ArrayList<Candidate>();
    // iterate through all fields on the form, seeing if they are mapped to patient identifying
    // fields
    // e.g. Birthdate, Name, and Patient ID
    for (Patient patient : patients) {
      candidates.add(new Candidate(patient));
    }
    List<MedicFormFieldResponse> responses = response.getResponses();
    try {
      responses.get(0).getDateSubmitted();
    } catch (Exception e) {
      responses = formFieldResponseDao.getResponsesForFormResponse(response);
    }

    for (MedicFormFieldResponse fieldResponse : responses) {
      // if it is mapped to a namefield, score it as a name
      if (fieldResponse.getField().getMapping() == PatientFieldMapping.NAMEFIELD) {
        for (Candidate c : candidates) {
          c.setNameScore(
              getNameDistance(c.getName().toLowerCase(), fieldResponse.getValue().toLowerCase()));
        }
        // if it is mapped to an id field, score it as an ID
      } else if (fieldResponse.getField().getMapping() == PatientFieldMapping.IDFIELD) {
        for (Candidate c : candidates) {
          c.setIdScore(getEditDistance(c.getStringID(), fieldResponse.getValue()));
        }
        // if it is mapped as a bday field, score it as a bday
      } else if (fieldResponse.getField().getMapping() == PatientFieldMapping.BIRTHDATEFIELD) {
        for (Candidate c : candidates) {
          if (fieldResponse.getValue().length() <= 8) {
            c.setBirthdateScore(
                getEditDistance(
                    shortFormatter.format(c.getPatient().getBirthdate()),
                    fieldResponse.getValue()));
          } else {
            c.setBirthdateScore(
                getEditDistance(
                    longFormatter.format(c.getPatient().getBirthdate()), fieldResponse.getValue()));
          }
        }
      }
    }
    Collections.sort(candidates);
    return candidates.subList(0, 5);
  }