public static void Main(System.String[] args)
{
try
{
Directory directory = new RAMDirectory();
Analyzer analyzer = new SimpleAnalyzer();
IndexWriter writer = new IndexWriter(directory, analyzer, true);
System.String[] docs = new System.String[]{"a b c d e", "a b c d e a b c d e", "a b c d e f g h i j", "a c e", "e c a", "a c e a c e", "a c e a b c"};
for (int j = 0; j < docs.Length; j++)
{
Document d = new Document();
d.Add(Field.Text("contents", docs[j]));
writer.AddDocument(d);
}
writer.Close();
Searcher searcher = new IndexSearcher(directory);
System.String[] queries = new System.String[]{"\"a c e\""};
Hits hits = null;
QueryParsers.QueryParser parser = new QueryParsers.QueryParser("contents", analyzer);
parser.SetPhraseSlop(4);
for (int j = 0; j < queries.Length; j++)
{
Query query = parser.Parse(queries[j]);
System.Console.Out.WriteLine("Query: " + query.ToString("contents"));
//DateFilter filter =
// new DateFilter("modified", Time(1997,0,1), Time(1998,0,1));
//DateFilter filter = DateFilter.Before("modified", Time(1997,00,01));
//System.out.println(filter);
hits = searcher.Search(query);
System.Console.Out.WriteLine(hits.Length() + " total results");
for (int i = 0; i < hits.Length() && i < 10; i++)
{
Document d = hits.Doc(i);
System.Console.Out.WriteLine(i + " " + hits.Score(i) + " " + d.Get("contents"));
}
}
searcher.Close();
}
catch (System.Exception e)
{
System.Console.Out.WriteLine(" caught a " + e.GetType() + "\n with message: " + e.Message);
}
}
public virtual void TestMultiAnalyzer_Rename()
{
QueryParser qp = new QueryParser("", new MultiAnalyzer(this));
// trivial, no multiple tokens:
Assert.AreEqual("foo", qp.Parse("foo").ToString());
Assert.AreEqual("foo", qp.Parse("\"foo\"").ToString());
Assert.AreEqual("foo foobar", qp.Parse("foo foobar").ToString());
Assert.AreEqual("\"foo foobar\"", qp.Parse("\"foo foobar\"").ToString());
Assert.AreEqual("\"foo foobar blah\"", qp.Parse("\"foo foobar blah\"").ToString());
// two tokens at the same position:
Assert.AreEqual("(multi multi2) foo", qp.Parse("multi foo").ToString());
Assert.AreEqual("foo (multi multi2)", qp.Parse("foo multi").ToString());
Assert.AreEqual("(multi multi2) (multi multi2)", qp.Parse("multi multi").ToString());
Assert.AreEqual("+(foo (multi multi2)) +(bar (multi multi2))", qp.Parse("+(foo multi) +(bar multi)").ToString());
Assert.AreEqual("+(foo (multi multi2)) field:\"bar (multi multi2)\"", qp.Parse("+(foo multi) field:\"bar multi\"").ToString());
// phrases:
Assert.AreEqual("\"(multi multi2) foo\"", qp.Parse("\"multi foo\"").ToString());
Assert.AreEqual("\"foo (multi multi2)\"", qp.Parse("\"foo multi\"").ToString());
Assert.AreEqual("\"foo (multi multi2) foobar (multi multi2)\"", qp.Parse("\"foo multi foobar multi\"").ToString());
// fields:
Assert.AreEqual("(field:multi field:multi2) field:foo", qp.Parse("field:multi field:foo").ToString());
Assert.AreEqual("field:\"(multi multi2) foo\"", qp.Parse("field:\"multi foo\"").ToString());
// three tokens at one position:
Assert.AreEqual("triplemulti multi3 multi2", qp.Parse("triplemulti").ToString());
Assert.AreEqual("foo (triplemulti multi3 multi2) foobar", qp.Parse("foo triplemulti foobar").ToString());
// phrase with non-default slop:
Assert.AreEqual("\"(multi multi2) foo\"~10", qp.Parse("\"multi foo\"~10").ToString());
// phrase with non-default boost:
Assert.AreEqual("\"(multi multi2) foo\"^2.0", qp.Parse("\"multi foo\"^2").ToString());
// phrase after changing default slop
qp.SetPhraseSlop(99);
Assert.AreEqual("\"(multi multi2) foo\"~99 bar", qp.Parse("\"multi foo\" bar").ToString());
Assert.AreEqual("\"(multi multi2) foo\"~99 \"foo bar\"~2", qp.Parse("\"multi foo\" \"foo bar\"~2").ToString());
qp.SetPhraseSlop(0);
// non-default operator:
qp.SetDefaultOperator(QueryParser.AND_OPERATOR);
Assert.AreEqual("+(multi multi2) +foo", qp.Parse("multi foo").ToString());
}
private void DoTestSearch(System.IO.StreamWriter out_Renamed, bool useCompoundFile)
{
Directory directory = new RAMDirectory();
Analyzer analyzer = new SimpleAnalyzer();
IndexWriter writer = new IndexWriter(directory, analyzer, true, IndexWriter.MaxFieldLength.LIMITED);
writer.SetUseCompoundFile(useCompoundFile);
System.String[] docs = new System.String[]{"a b c d e", "a b c d e a b c d e", "a b c d e f g h i j", "a c e", "e c a", "a c e a c e", "a c e a b c"};
for (int j = 0; j < docs.Length; j++)
{
Document d = new Document();
d.Add(new Field("contents", docs[j], Field.Store.YES, Field.Index.ANALYZED));
writer.AddDocument(d);
}
writer.Close();
Searcher searcher = new IndexSearcher(directory);
System.String[] queries = new System.String[]{"a b", "\"a b\"", "\"a b c\"", "a c", "\"a c\"", "\"a c e\""};
ScoreDoc[] hits = null;
QueryParser parser = new QueryParser("contents", analyzer);
parser.SetPhraseSlop(4);
for (int j = 0; j < queries.Length; j++)
{
Query query = parser.Parse(queries[j]);
out_Renamed.WriteLine("Query: " + query.ToString("contents"));
//DateFilter filter =
// new DateFilter("modified", Time(1997,0,1), Time(1998,0,1));
//DateFilter filter = DateFilter.Before("modified", Time(1997,00,01));
//System.out.println(filter);
hits = searcher.Search(query, null, 1000).scoreDocs;
out_Renamed.WriteLine(hits.Length + " total results");
for (int i = 0; i < hits.Length && i < 10; i++)
{
Document d = searcher.Doc(hits[i].doc);
out_Renamed.WriteLine(i + " " + hits[i].score + " " + d.Get("contents"));
}
}
searcher.Close();
}
