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 field = node.Field;
var defaultFields = node.GetDefaultFields(elasticContext.DefaultFields);
if (field == null && defaultFields != null && defaultFields.Length == 1)
{
field = defaultFields[0];
}
if (elasticContext.MappingResolver.IsPropertyAnalyzed(field))
{
var fields = !String.IsNullOrEmpty(field) ? new[] { field } : defaultFields;
if (!node.IsQuotedTerm && node.UnescapedTerm.EndsWith("*"))
{
query = new QueryStringQuery {
Fields = fields,
AllowLeadingWildcard = false,
AnalyzeWildcard = true,
Query = node.UnescapedTerm
};
}
else
{
if (fields != null && 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)
{
((MultiMatchQuery)query).Type = TextQueryType.Phrase;
}
}
}
}
else
{
if (!node.IsQuotedTerm && node.UnescapedTerm.EndsWith("*"))
{
query = new PrefixQuery {
Field = field,
Value = node.UnescapedTerm.TrimEnd('*')
};
}
else
{
query = new TermQuery {
Field = field,
Value = node.UnescapedTerm
};
}
}
return(query);
}
