// Random rnd is passed in so that the exact same random query may be created
// more than once.
public static BooleanQuery RandBoolQuery(System.Random rnd, int level, System.String field, System.String[] vals, TestBoolean2.Callback cb)
{
BooleanQuery current = new BooleanQuery(rnd.Next() < 0);
for (int i = 0; i < rnd.Next(vals.Length) + 1; i++)
{
int qType = 0; // term query
if (level > 0)
{
qType = rnd.Next(10);
}
Query q;
if (qType < 7)
q = new TermQuery(new Term(field, vals[rnd.Next(vals.Length)]));
else
q = RandBoolQuery(rnd, level - 1, field, vals, cb);
int r = rnd.Next(10);
BooleanClause.Occur occur;
if (r < 2)
occur = BooleanClause.Occur.MUST_NOT;
else if (r < 5)
occur = BooleanClause.Occur.MUST;
else
occur = BooleanClause.Occur.SHOULD;
current.Add(q, occur);
}
if (cb != null)
cb.PostCreate(current);
return current;
}
// Random rnd is passed in so that the exact same random query may be created
// more than once.
public static BooleanQuery RandBoolQuery(System.Random rnd, bool allowMust, int level, System.String field, System.String[] vals, TestBoolean2.Callback cb)
{
BooleanQuery current = new BooleanQuery(rnd.Next() < 0);
for (int i = 0; i < rnd.Next(vals.Length) + 1; i++)
{
int qType = 0; // term query
if (level > 0)
{
qType = rnd.Next(10);
}
Query q;
if (qType < 3)
{
q = new TermQuery(new Term(field, vals[rnd.Next(vals.Length)]));
}
else if (qType < 7)
{
q = new WildcardQuery(new Term(field, "w*"));
}
else
{
q = RandBoolQuery(rnd, allowMust, level - 1, field, vals, cb);
}
int r = rnd.Next(10);
Occur occur;
if (r < 2)
{
occur = Occur.MUST_NOT;
}
else if (r < 5)
{
occur = allowMust ? Occur.MUST : Occur.SHOULD;
}
else
{
occur = Occur.SHOULD;
}
current.Add(q, occur);
}
if (cb != null)
cb.PostCreate(current);
return current;
}