/**
* Parse and save predicates.
*/
void ElasticContext::updatePredicates(const std::vector<std::string> &predicateStrings) {
//If there is already a predicate and thus presumably an index, make sure the request is a subset of what exists
//That should always be the case, but wrong answers will follow if we are wrong
if (m_predicates.size() > 0 && dynamic_cast<HashRangeExpression*>(&m_predicates[0]) != NULL && predicateStrings.size() > 0) {
PlannerDomRoot domRoot(predicateStrings[0].c_str());
if (!domRoot.isNull()) {
PlannerDomValue predicateObject = domRoot.rootObject();
HashRangeExpression *expression = dynamic_cast<HashRangeExpression*>(&m_predicates[0]);
if (predicateObject.hasKey("predicateExpression")) {
PlannerDomValue predicateExpression = predicateObject.valueForKey("predicateExpression");
PlannerDomValue rangesArray = predicateExpression.valueForKey("RANGES");
for (int ii = 0; ii < rangesArray.arrayLen(); ii++) {
PlannerDomValue arrayObject = rangesArray.valueAtIndex(ii);
PlannerDomValue rangeStartValue = arrayObject.valueForKey("RANGE_START");
PlannerDomValue rangeEndValue = arrayObject.valueForKey("RANGE_END");
if (!expression->binarySearch(rangeStartValue.asInt()).isTrue()) {
throwFatalException("ElasticContext activate failed because a context already existed with conflicting ranges, conflicting range start is %d", rangeStartValue.asInt());
}
if (!expression->binarySearch(rangeEndValue.asInt()).isTrue()) {
throwFatalException("ElasticContext activate failed because a context already existed with conflicting ranges, conflicting range end is %d", rangeStartValue.asInt());
}
}
}
}
}
m_predicateStrings = predicateStrings; // retain for possible clone after TRUNCATE TABLE
TableStreamerContext::updatePredicates(predicateStrings);
}
/** Parse JSON parameters to create a hash range expression */
static AbstractExpression*
hashRangeFactory(PlannerDomValue obj) {
PlannerDomValue hashColumnValue = obj.valueForKey("HASH_COLUMN");
PlannerDomValue rangesArray = obj.valueForKey("RANGES");
srange_type *ranges = new srange_type[rangesArray.arrayLen()];
for (int ii = 0; ii < rangesArray.arrayLen(); ii++) {
PlannerDomValue arrayObject = rangesArray.valueAtIndex(ii);
PlannerDomValue rangeStartValue = arrayObject.valueForKey("RANGE_START");
PlannerDomValue rangeEndValue = arrayObject.valueForKey("RANGE_END");
ranges[ii] = srange_type(rangeStartValue.asInt(), rangeEndValue.asInt());
}
return new HashRangeExpression(hashColumnValue.asInt(), ranges, static_cast<int>(rangesArray.arrayLen()));
}
