@Override
public EncounterQueryResult evaluate(EncounterQuery definition, EvaluationContext context)
throws EvaluationException {
context = ObjectUtil.nvl(context, new EvaluationContext());
BasicEncounterQuery query = (BasicEncounterQuery) definition;
EncounterQueryResult result = new EncounterQueryResult(query, context);
if (context.getBaseCohort() != null && context.getBaseCohort().isEmpty()) {
return result;
}
if (context instanceof EncounterEvaluationContext) {
EncounterIdSet baseEncounters = ((EncounterEvaluationContext) context).getBaseEncounters();
if (baseEncounters != null && baseEncounters.getMemberIds().isEmpty()) {
return result;
}
}
HqlQueryBuilder q = new HqlQueryBuilder();
q.select("e.encounterId");
q.from(Encounter.class, "e");
q.whereIn("e.encounterType", query.getEncounterTypes());
q.whereIn("e.form", query.getForms());
q.whereGreaterOrEqualTo("e.encounterDatetime", query.getOnOrAfter());
q.whereLessOrEqualTo("e.encounterDatetime", query.getOnOrBefore());
q.whereIn("e.location", query.getLocationList());
q.whereEncounterIn("e.encounterId", context);
if (query.getWhich() == null || query.getWhich() == TimeQualifier.ANY) {
List<Integer> results = evaluationService.evaluateToList(q, Integer.class);
result.getMemberIds().addAll(results);
} else {
q.innerJoin("e.patient", "p");
q.select("p.patientId");
if (query.getWhich() == TimeQualifier.LAST) {
q.orderDesc("e.encounterDatetime");
} else {
q.orderAsc("e.encounterDatetime");
}
ListMap<Integer, Integer> foundEncountersForPatients = new ListMap<Integer, Integer>();
int maxNumPerPatient = ObjectUtil.nvl(query.getWhichNumber(), 1);
for (Object[] row : evaluationService.evaluateToList(q)) {
Integer encounterId = (Integer) row[0];
Integer patientId = (Integer) row[1];
foundEncountersForPatients.putInList(patientId, encounterId);
if (foundEncountersForPatients.get(patientId).size() <= maxNumPerPatient) {
result.add(encounterId);
}
}
}
return result;
}
