public new void TearDown()
{
reader.Close();
searcher.Close();
directory.Close();
base.TearDown();
}
/// <summary>
/// Clears all results from the current index. During the next search the index will be rebuilt.
/// </summary>
public void Clear()
{
lck.AcquireWriterLock(WriterTimeOut);
try
{
if (rd != null)
{
rd.Close();
rd = null;
}
}
finally
{
lck.ReleaseWriterLock();
}
}
public void testMissingTerms()
{
String fieldName = "field1";
Directory rd = new RAMDirectory();
var w = new IndexWriter(rd, new KeywordAnalyzer(), IndexWriter.MaxFieldLength.UNLIMITED);
for (int i = 0; i < 100; i++)
{
var doc = new Document();
int term = i * 10; //terms are units of 10;
doc.Add(new Field(fieldName, "" + term, Field.Store.YES, Field.Index.ANALYZED));
w.AddDocument(doc);
}
IndexReader reader = w.GetReader();
w.Close();
TermsFilter tf = new TermsFilter();
tf.AddTerm(new Term(fieldName, "19"));
FixedBitSet bits = (FixedBitSet)tf.GetDocIdSet(reader);
Assert.AreEqual(0, bits.Cardinality(), "Must match nothing");
tf.AddTerm(new Term(fieldName, "20"));
bits = (FixedBitSet)tf.GetDocIdSet(reader);
Assert.AreEqual(1, bits.Cardinality(), "Must match 1");
tf.AddTerm(new Term(fieldName, "10"));
bits = (FixedBitSet)tf.GetDocIdSet(reader);
Assert.AreEqual(2, bits.Cardinality(), "Must match 2");
tf.AddTerm(new Term(fieldName, "00"));
bits = (FixedBitSet)tf.GetDocIdSet(reader);
Assert.AreEqual(2, bits.Cardinality(), "Must match 2");
reader.Close();
rd.Close();
}
static void Main(string[] args)
{
int maxLength = GeohashPrefixTree.GetMaxLevelsPossible();
strategy = new RecursivePrefixTreeStrategy(
new GeohashPrefixTree(context, maxLength));
var dir = new RAMDirectory();
var writer = new IndexWriter(dir, new SimpleAnalyzer(), true,
IndexWriter.MaxFieldLength.UNLIMITED);
AddPoint(writer, "London", -81.233040, 42.983390);
AddPoint(writer, "East New York", -73.882360, 40.666770);
AddPoint(writer, "Manhattan", -73.966250, 40.783430);
AddPoint(writer, "New York City", -74.005970, 40.714270);
AddPoint(writer, "Oslo", 10.746090, 59.912730);
AddPoint(writer, "Bergen", 5.324150, 60.392990);
AddPoint(writer, "Washington, D. C.", -77.036370, 38.895110);
writer.Close();
// Origin point - Oslo Spektrum
const double lat = 59.9138688;
const double lng = 10.752245399999993;
const double radius = 600;
var query = strategy.MakeQuery(new SpatialArgs(SpatialOperation.IsWithin,
context.MakeCircle(lng, lat, radius)), fieldInfo);
var searcher = new IndexSearcher(dir);
var results = searcher.Search(query, null, 100);
foreach (var topDoc in results.ScoreDocs)
{
var name = searcher.Doc(topDoc.doc).Get("Name");
Console.WriteLine(name);
}
searcher.Close();
dir.Close();
}
protected void AssertFoundInText(string whatToIndex, string whatToSearch)
{
Directory d = new RAMDirectory();
IndexWriter writer = new IndexWriter(d, analyzer, true, new IndexWriter.MaxFieldLength(10000));
Document doc = new Document();
doc.Add(new Field("content", whatToIndex, Field.Store.YES, Field.Index.ANALYZED));
writer.AddDocument(doc);
writer.Close();
writer = null;
IndexSearcher searcher = new IndexSearcher(d, true); // read-only=true
QueryParser qp = new QueryParser(Lucene.Net.Util.Version.LUCENE_29, "content", analyzer);
Query query = qp.Parse(whatToSearch);
var hits = searcher.Search(query, null, 1000).ScoreDocs;
Assert(hits.Length == 1);
searcher.Close();
d.Close();
}
public void TearDown()
{
reader.Close();
searcher.Close();
directory.Close();
}
/// <summary>
/// Annotates the given sequence of <see cref="Document"/> objects by adding a <b>_highlight</b> field;
/// the <b>_highlight</b> field will contain the best matching text fragment from the <see cref="Document"/>
/// object's full-text field.
/// </summary>
/// <param name="hits">The sequence of <see cref="Document"/> objects.</param>
/// <param name="criteria">The search criteria that produced the hits.</param>
/// <returns>
/// The original sequence of Document objects, with a <b>_highlight</b> field added to each Document.
/// </returns>
public static IEnumerable<Document> GenerateHighlights(this IEnumerable<Document> hits, SearchCriteria criteria)
{
if (hits == null)
throw new ArgumentNullException(nameof(hits));
if (criteria == null)
throw new ArgumentNullException(nameof(criteria));
if (String.IsNullOrWhiteSpace(criteria.Query))
throw new ArgumentException("SearchCriteria.Query cannot be empty");
var documents = hits.ToList();
try
{
var indexDirectory = new RAMDirectory();
var analyzer = new FullTextAnalyzer();
var config = new IndexWriterConfig(analyzer).SetRAMBufferSizeMB(_ramBufferSizeMB);
var writer = new IndexWriter(indexDirectory, config);
BuidIndex(documents, writer);
GenerateHighlights(documents, writer, criteria);
writer.DeleteAll();
writer.Commit();
writer.Close();
indexDirectory.Close();
}
catch (Exception ex)
{
_log.Error(ex);
}
return documents;
}
public void TearDown()
{
directory.Close();
}
public void Run()
{
CreateIndex();
SearchSingleTerm("title", "lucene");
ramDirectory.Close();
}
