private SectionSearchQueryPlan TranslateBooleanQuery(BooleanQuery query)
{
List<Query> requiredClauses = new List<Query>();
List<Query> prohibitedClauses = new List<Query>();
List<Query> optionalClauses = new List<Query>();
BooleanClause[] clauses = query.GetClauses();
foreach (BooleanClause clause in clauses)
{
if (clause.IsRequired)
{
requiredClauses.Add(clause.Query);
}
else if (clause.IsProhibited)
{
prohibitedClauses.Add(clause.Query);
}
else
{
optionalClauses.Add(clause.Query);
}
}
SectionSearchQueryPlan positiveNode = null;
SectionSearchQueryPlan negativeNode = null;
if (requiredClauses.Count > 0)
{
if (requiredClauses.Count == 1)
{
positiveNode = Translate(requiredClauses.Get(0));
}
else
{
SectionSearchQueryPlan[] subqueries = Translate(requiredClauses);
if (subqueries != null && subqueries.Length > 0) positiveNode = new AndNode(subqueries);
}
}
else if (optionalClauses.Count > 0)
{
if (optionalClauses.Count == 1)
{
positiveNode = Translate(optionalClauses.Get(0));
}
else
{
SectionSearchQueryPlan[] subqueries = Translate(optionalClauses);
if (subqueries != null && subqueries.Length > 0) positiveNode = new OrNode(subqueries);
}
}
if (prohibitedClauses.Count > 0)
{
if (prohibitedClauses.Count == 1)
{
negativeNode = Translate(prohibitedClauses.Get(0));
}
else
{
negativeNode = new OrNode(Translate(prohibitedClauses));
}
}
if (negativeNode == null)
{
return positiveNode;
}
else
{
if (positiveNode == null)
{
return new UnaryNotNode(negativeNode);
}
else
{
return new AndNotNode(positiveNode, negativeNode);
}
}
}
private SectionSearchQueryPlan TranslateBooleanQuery(BooleanQuery query)
{
List <Query> requiredClauses = new List <Query>();
List <Query> prohibitedClauses = new List <Query>();
List <Query> optionalClauses = new List <Query>();
BooleanClause[] clauses = query.GetClauses();
foreach (BooleanClause clause in clauses)
{
if (clause.IsRequired)
{
requiredClauses.Add(clause.Query);
}
else if (clause.IsProhibited)
{
prohibitedClauses.Add(clause.Query);
}
else
{
optionalClauses.Add(clause.Query);
}
}
SectionSearchQueryPlan positiveNode = null;
SectionSearchQueryPlan negativeNode = null;
if (requiredClauses.Count > 0)
{
if (requiredClauses.Count == 1)
{
positiveNode = Translate(requiredClauses.Get(0));
}
else
{
SectionSearchQueryPlan[] subqueries = Translate(requiredClauses);
if (subqueries != null && subqueries.Length > 0)
{
positiveNode = new AndNode(subqueries);
}
}
}
else if (optionalClauses.Count > 0)
{
if (optionalClauses.Count == 1)
{
positiveNode = Translate(optionalClauses.Get(0));
}
else
{
SectionSearchQueryPlan[] subqueries = Translate(optionalClauses);
if (subqueries != null && subqueries.Length > 0)
{
positiveNode = new OrNode(subqueries);
}
}
}
if (prohibitedClauses.Count > 0)
{
if (prohibitedClauses.Count == 1)
{
negativeNode = Translate(prohibitedClauses.Get(0));
}
else
{
negativeNode = new OrNode(Translate(prohibitedClauses));
}
}
if (negativeNode == null)
{
return(positiveNode);
}
else
{
if (positiveNode == null)
{
return(new UnaryNotNode(negativeNode));
}
else
{
return(new AndNotNode(positiveNode, negativeNode));
}
}
}