public static QueryContainer CreateReturnQuery(Action <QueryContainer, BoolBaseQueryDescriptor> modify = null)
{
var returnQuery = new QueryContainer();
var returnBoolQuery = new BoolBaseQueryDescriptor()
{
};
((IQueryContainer)returnQuery).Bool = returnBoolQuery;
if (modify != null)
{
modify(returnQuery, returnBoolQuery);
}
return(returnQuery);
}
public static QueryContainer operator !(QueryContainer lbq)
{
if (lbq == null || ((IQueryContainer)lbq).IsConditionless)
{
var newConditionless = new QueryContainer();
((IQueryContainer)newConditionless).IsConditionless = true;
return(newConditionless);
}
var f = new QueryContainer();
var fq = new BoolBaseQueryDescriptor();
((IBoolQuery)fq).MustNot = new[] { lbq };
((IQueryContainer)f).Bool = fq;
return(f);
}
private static void JoinShouldOnSide(QueryContainer lbq, QueryContainer rbq, BoolBaseQueryDescriptor bq)
{
((IBoolQuery)bq).Should = lbq.MergeShouldQueries(rbq);
}
public static QueryContainer operator |(QueryContainer leftQuery, QueryContainer rightQuery)
{
var defaultQuery = new QueryContainer();
((IQueryContainer)defaultQuery).IsConditionless = true;
leftQuery = leftQuery ?? defaultQuery;
rightQuery = rightQuery ?? defaultQuery;
var combined = new[] { leftQuery, rightQuery };
if (combined.Any(bf => ((IQueryContainer)bf).IsConditionless))
{
return(combined.FirstOrDefault(bf => !((IQueryContainer)bf).IsConditionless) ?? defaultQuery);
}
var leftBoolQuery = ((IQueryContainer)leftQuery).Bool;
var rightBoolQuery = ((IQueryContainer)rightQuery).Bool;
var f = new QueryContainer();
var fq = new BoolBaseQueryDescriptor();
((IBoolQuery)fq).Should = new[] { leftQuery, rightQuery };
((IQueryContainer)f).Bool = fq;
var mergeLeft = !((IQueryContainer)leftQuery).IsStrict && (leftBoolQuery == null || ((IBoolQuery)leftBoolQuery).MinimumShouldMatch == null);
var mergeRight = !((IQueryContainer)rightQuery).IsStrict && (rightBoolQuery == null || ((IBoolQuery)rightBoolQuery).MinimumShouldMatch == null);
//if neither the left nor the right side represent a bool query join them
if (((IQueryContainer)leftQuery).Bool == null && ((IQueryContainer)rightQuery).Bool == null)
{
((IBoolQuery)fq).Should = leftQuery.MergeShouldQueries(rightQuery);
return(f);
}
//if the left or right sight already is a bool query join the non bool query side of the
//of the operation onto the other.
if (((IQueryContainer)leftQuery).Bool != null &&
((IQueryContainer)rightQuery).Bool == null &&
mergeLeft)
{
JoinShouldOnSide(leftQuery, rightQuery, fq);
}
else if (((IQueryContainer)rightQuery).Bool != null &&
((IQueryContainer)leftQuery).Bool == null &&
mergeRight)
{
JoinShouldOnSide(rightQuery, leftQuery, fq);
}
//both sides already represent a bool query
else
{
//both sides report that we may merge the shoulds
if (mergeLeft && mergeRight &&
leftBoolQuery.CanJoinShould() &&
rightBoolQuery.CanJoinShould())
{
((IBoolQuery)fq).Should = leftQuery.MergeShouldQueries(rightQuery);
}
else
{
//create a new nested bool with two separate should bool sections
((IBoolQuery)fq).Should = new[] { leftQuery, rightQuery }
};
}
return(f);
}
