public override void Visit(TermNode node, IQueryVisitorContext context)
{
var validationInfo = context.GetValidationInfo();
string field = null;
if (!String.IsNullOrEmpty(node.Field))
{
field = String.Equals(validationInfo.QueryType, QueryType.Query) ? node.GetFullName() : node.Field;
if (!field.StartsWith("@"))
{
validationInfo.ReferencedFields.Add(field);
}
}
else
{
if (String.Equals(validationInfo.QueryType, QueryType.Aggregation))
{
validationInfo.IsValid = false;
}
var nameParts = node.GetNameParts();
if (nameParts.Length == 0)
{
validationInfo.ReferencedFields.Add("_all");
}
}
AddOperation(validationInfo, node.GetOperationType(), field);
}
public static QueryBase GetDefaultQuery(this TermNode node, IQueryVisitorContext context)
{
if (!(context is IElasticQueryVisitorContext elasticContext))
{
throw new ArgumentException("Context must be of type IElasticQueryVisitorContext", nameof(context));
}
QueryBase query;
string nodeFullName = node.GetFullName();
if (elasticContext.IsPropertyAnalyzed(nodeFullName))
{
var fields = !String.IsNullOrEmpty(nodeFullName) ? new[] { nodeFullName } : elasticContext.DefaultFields;
if (!node.IsQuotedTerm && node.UnescapedTerm.EndsWith("*"))
{
query = new QueryStringQuery {
Fields = fields,
AllowLeadingWildcard = false,
AnalyzeWildcard = true,
Query = node.UnescapedTerm
};
}
else
{
if (fields.Length == 1)
{
if (node.IsQuotedTerm)
{
query = new MatchPhraseQuery {
Field = fields[0],
Query = node.UnescapedTerm
};
}
else
{
query = new MatchQuery {
Field = fields[0],
Query = node.UnescapedTerm
};
}
}
else
{
query = new MultiMatchQuery {
Fields = fields,
Query = node.UnescapedTerm
};
if (node.IsQuotedTerm)
{
(query as MultiMatchQuery).Type = TextQueryType.Phrase;
}
}
}
}
else
{
query = new TermQuery {
Field = nodeFullName,
Value = node.UnescapedTerm
};
}
return(query);
}
