public string Search(string strQuery)
{
string result = string.Empty;
Lucene.Net.Index.IndexReader reader = Lucene.Net.Index.IndexReader.Open(Server.MapPath(System.Configuration.ConfigurationManager.AppSettings["IndexingArticle"]));
Lucene.Net.QueryParsers.QueryParser parser = new Lucene.Net.QueryParsers.QueryParser("ArticleDetail", new Lucene.Net.Analysis.Standard.StandardAnalyzer());
Lucene.Net.Search.Query query = parser.Parse(strQuery);
Lucene.Net.Search.IndexSearcher searcher = new Lucene.Net.Search.IndexSearcher(reader);
Lucene.Net.Search.Hits hits = searcher.Search(query);
Lucene.Net.Highlight.QueryScorer score = new Lucene.Net.Highlight.QueryScorer(query);
Lucene.Net.Highlight.SimpleHTMLFormatter formater = new Lucene.Net.Highlight.SimpleHTMLFormatter("<span class='Highlight'>", "</span>");
Lucene.Net.Highlight.Highlighter highlighter = new Lucene.Net.Highlight.Highlighter(formater, score);
result += "<div align='right' style='background-color:#F0F7F9; padding-right:15px' height='30px'><font style='FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: #005482; FONT-FAMILY: arial'>Kết quả tìm thấy : " + hits.Length() + " </font></div>";
result += "<div style='padding: 10px 10px 10px 10px;'>";
for (int i = 0; i < hits.Length(); i++)
{
string id = hits.Doc(i).Get("ArticleId");
string title = hits.Doc(i).Get("ArticleTitle");
string detail = hits.Doc(i).Get("ArticleDetail");
Lucene.Net.Analysis.TokenStream ts = (new Lucene.Net.Analysis.Standard.StandardAnalyzer()).TokenStream("ArticleDetail", new System.IO.StringReader(detail));
result += string.Format("<div align='left'><font style='FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: #5b5b5b; FONT-FAMILY: arial'><a href='/?ArticleId={0}'>{1}</a></font>", id, title);
result += string.Format("<div align='left'><font style='FONT-SIZE: 9pt' face='Arial' color='#005482'>...{0}...</font></div></div></br>", highlighter.GetBestFragment(ts, detail));
}
result += "</div>";
reader.Close();
return(result);
}
/// <summary> Note that the underlying IndexReader is not closed, if
/// IndexSearcher was constructed with IndexSearcher(IndexReader r).
/// If the IndexReader was supplied implicitly by specifying a directory, then
/// the IndexReader gets closed.
/// </summary>
public override void Close()
{
if (closeReader)
{
reader.Close();
}
}
public static void Main(System.String[] args)
{
try
{
Directory directory = FSDirectory.GetDirectory("demo index", false);
IndexReader reader = IndexReader.Open(directory);
// Term term = new Term("path", "pizza");
// int deleted = reader.delete(term);
// System.out.println("deleted " + deleted +
// " documents containing " + term);
for (int i = 0; i < reader.MaxDoc(); i++)
{
reader.Delete(i);
}
reader.Close();
directory.Close();
}
catch (System.Exception e)
{
System.Console.Out.WriteLine(" caught a " + e.GetType() + "\n with message: " + e.Message);
}
}
public virtual void TestVerifyIndex()
{
IndexReader reader = IndexReader.Open(mDirectory);
Assert.AreEqual(8, reader.NumDocs());
reader.Close();
}
public static void Main(System.String[] args)
{
System.String usage = typeof(DeleteFiles) + " <unique_term>";
if (args.Length == 0)
{
System.Console.Error.WriteLine("Usage: " + usage);
System.Environment.Exit(1);
}
try
{
Directory directory = FSDirectory.Open(new System.IO.FileInfo("index"));
IndexReader reader = IndexReader.Open(directory, false); // we don't want read-only because we are about to delete
Term term = new Term("path", args[0]);
int deleted = reader.DeleteDocuments(term);
System.Console.Out.WriteLine("deleted " + deleted + " documents containing " + term);
// one can also delete documents by their internal id:
/*
* for (int i = 0; i < reader.maxDoc(); i++) {
* System.out.println("Deleting document with id " + i);
* reader.delete(i);
* }*/
reader.Close();
directory.Close();
}
catch (System.Exception e)
{
System.Console.Out.WriteLine(" caught a " + e.GetType() + "\n with message: " + e.Message);
}
}
public override void TearDown()
{
base.TearDown();
readerA.Close();
readerB.Close();
readerX.Close();
}
/* Walk directory hierarchy in uid order, while keeping uid iterator from
* /* existing index in sync. Mismatches indicate one of: (a) old documents to
* /* be deleted; (b) unchanged documents, to be left alone; or (c) new
* /* documents, to be indexed.
*/
private static void IndexDocs(System.IO.FileInfo file, System.IO.FileInfo index, bool create)
{
if (!create)
{
// incrementally update
reader = IndexReader.Open(FSDirectory.Open(index), false); // open existing index
uidIter = reader.Terms(new Term("uid", "")); // init uid iterator
IndexDocs(file);
if (deleting)
{
// delete rest of stale docs
while (uidIter.Term() != null && (System.Object)uidIter.Term().Field() == (System.Object) "uid")
{
System.Console.Out.WriteLine("deleting " + HTMLDocument.Uid2url(uidIter.Term().Text()));
reader.DeleteDocuments(uidIter.Term());
uidIter.Next();
}
deleting = false;
}
uidIter.Close(); // close uid iterator
reader.Close(); // close existing index
}
// don't have exisiting
else
{
IndexDocs(file);
}
}
public virtual void TestNPESpanQuery()
{
Directory dir = new MockRAMDirectory();
IndexWriter writer = new IndexWriter(dir, new StandardAnalyzer(new System.Collections.Hashtable(0)), IndexWriter.MaxFieldLength.LIMITED);
// Add documents
AddDoc(writer, "1", "the big dogs went running to the market");
AddDoc(writer, "2", "the cat chased the mouse, then the cat ate the mouse quickly");
// Commit
writer.Close();
// Get searcher
IndexReader reader = IndexReader.Open(dir);
IndexSearcher searcher = new IndexSearcher(reader);
// Control (make sure docs indexed)
Assert.AreEqual(2, HitCount(searcher, "the"));
Assert.AreEqual(1, HitCount(searcher, "cat"));
Assert.AreEqual(1, HitCount(searcher, "dogs"));
Assert.AreEqual(0, HitCount(searcher, "rabbit"));
// This throws exception (it shouldn't)
Assert.AreEqual(1, searcher.Search(CreateSpan(0, true, new SpanQuery[] { CreateSpan(4, false, "chased", "cat"), CreateSpan("ate") }), 10).TotalHits);
reader.Close();
dir.Close();
}
public virtual void TestCachingWorks()
{
Directory dir = new RAMDirectory();
IndexWriter writer = new IndexWriter(dir, new StandardAnalyzer(), true, IndexWriter.MaxFieldLength.LIMITED);
writer.Close();
IndexReader reader = IndexReader.Open(dir);
MockFilter filter = new MockFilter();
CachingWrapperFilter cacher = new CachingWrapperFilter(filter);
// first time, nested filter is called
cacher.GetDocIdSet(reader);
Assert.IsTrue(filter.WasCalled(), "first time");
// make sure no exception if cache is holding the wrong bitset
cacher.Bits(reader);
cacher.GetDocIdSet(reader);
// second time, nested filter should not be called
filter.Clear();
cacher.GetDocIdSet(reader);
Assert.IsFalse(filter.WasCalled(), "second time");
reader.Close();
}
public virtual void TestCompressionTools()
{
Fieldable binaryFldCompressed = new Field("binaryCompressed", CompressionTools.Compress(System.Text.UTF8Encoding.UTF8.GetBytes(binaryValCompressed)), Field.Store.YES);
Fieldable stringFldCompressed = new Field("stringCompressed", CompressionTools.CompressString(binaryValCompressed), Field.Store.YES);
Document doc = new Document();
doc.Add(binaryFldCompressed);
doc.Add(stringFldCompressed);
/** add the doc to a ram index */
MockRAMDirectory dir = new MockRAMDirectory();
IndexWriter writer = new IndexWriter(dir, new StandardAnalyzer(), true, IndexWriter.MaxFieldLength.LIMITED);
writer.AddDocument(doc);
writer.Close();
/** open a reader and fetch the document */
IndexReader reader = IndexReader.Open(dir);
Document docFromReader = reader.Document(0);
Assert.IsTrue(docFromReader != null);
/** fetch the binary compressed field and compare it's content with the original one */
System.String binaryFldCompressedTest = new System.String(System.Text.UTF8Encoding.UTF8.GetChars(CompressionTools.Decompress(docFromReader.GetBinaryValue("binaryCompressed"))));
Assert.IsTrue(binaryFldCompressedTest.Equals(binaryValCompressed));
Assert.IsTrue(CompressionTools.DecompressString(docFromReader.GetBinaryValue("stringCompressed")).Equals(binaryValCompressed));
reader.Close();
dir.Close();
}
private static RAMDirectory MakeEmptyIndex(int numDeletedDocs)
{
RAMDirectory d = new RAMDirectory();
IndexWriter w = new IndexWriter(d, new WhitespaceAnalyzer(), true, MaxFieldLength.LIMITED);
for (int i = 0; i < numDeletedDocs; i++)
{
w.AddDocument(new Document());
}
w.Commit();
w.DeleteDocuments(new MatchAllDocsQuery());
w.Commit();
if (0 < numDeletedDocs)
{
Assert.IsTrue(w.HasDeletions(), "writer has no deletions");
}
Assert.AreEqual(numDeletedDocs, w.MaxDoc(), "writer is missing some deleted docs");
Assert.AreEqual(0, w.NumDocs(), "writer has non-deleted docs");
w.Close();
IndexReader r = IndexReader.Open(d, true);
Assert.AreEqual(numDeletedDocs, r.NumDeletedDocs, "reader has wrong number of deleted docs");
r.Close();
return(d);
}
public virtual void TestRAMDirectoryString()
{
MockRAMDirectory ramDir = new MockRAMDirectory(indexDir.FullName);
// Check size
Assert.AreEqual(ramDir.SizeInBytes(), ramDir.GetRecomputedSizeInBytes());
// open reader to test document count
IndexReader reader = IndexReader.Open(ramDir);
Assert.AreEqual(docsToAdd, reader.NumDocs());
// open search zo check if all doc's are there
IndexSearcher searcher = new IndexSearcher(reader);
// search for all documents
for (int i = 0; i < docsToAdd; i++)
{
Document doc = searcher.Doc(i);
Assert.IsTrue(doc.GetField("content") != null);
}
// cleanup
reader.Close();
searcher.Close();
}
public virtual void Test()
{
IndexReader reader = null;
try
{
reader = IndexReader.Open(directory);
for (int i = 1; i <= numThreads; i++)
{
TestTermPositionVectors(reader, i);
}
}
catch (System.IO.IOException ioe)
{
Assert.Fail(ioe.Message);
}
finally
{
if (reader != null)
{
try
{
/** close the opened reader */
reader.Close();
}
catch (System.IO.IOException ioe)
{
System.Console.Error.WriteLine(ioe.StackTrace);
}
}
}
}
public string SearchAndPaging(string strQuery, string index)
{
string result = string.Empty;
try
{
List <SearchArticle> searchArticleList = new List <SearchArticle>();
PSCPortal.CMS.ArticleCollection ArticleList = ArticleCollection.GetArticleCollectionPublish();
string nameSub = Libs.Ultility.GetSubDomain() == string.Empty ? "HomePage" : Libs.Ultility.GetSubDomain();
SubDomain subDomain = PSCPortal.Engine.SubDomain.GetSubByName(nameSub);
PageCollection pagesBelongTo = subDomain.GetPagesBelongTo();
string strId = string.Empty;
foreach (var page in pagesBelongTo)
{
foreach (var ar in ArticleList.Where(ar => ar.PageId == page.Id))
{
strId += ar.Id + " OR ";
}
if (strId.Length > 0)
{
strId = strId.Remove(strId.Length - 3, 3);
}
}
int pageIndex = Int32.Parse(index);
string strSearch = " ArticleDetail:(" + strQuery + ") AND ArticleId:" + "( " + strId + " )";
Lucene.Net.Index.IndexReader reader = Lucene.Net.Index.IndexReader.Open(Server.MapPath(System.Configuration.ConfigurationManager.AppSettings["IndexingArticle"]));
Lucene.Net.QueryParsers.QueryParser parser = new Lucene.Net.QueryParsers.QueryParser("ArticleDetail", new Lucene.Net.Analysis.Standard.StandardAnalyzer());
Lucene.Net.Search.Query query = parser.Parse(strSearch);
Lucene.Net.Search.IndexSearcher searcher = new Lucene.Net.Search.IndexSearcher(reader);
Lucene.Net.Search.Hits hits = searcher.Search(query);
Lucene.Net.Highlight.QueryScorer score = new Lucene.Net.Highlight.QueryScorer(query);
Lucene.Net.Highlight.SimpleHTMLFormatter formater = new Lucene.Net.Highlight.SimpleHTMLFormatter("<span class='Highlight'>", "</span>");
Lucene.Net.Highlight.Highlighter highlighter = new Lucene.Net.Highlight.Highlighter(formater, score);
result += hits.Length() + "_" + "<div class='blog_news'><div class='topic_news_title1'><div class='topic_news_title'><a href='#'>Kết quả tìm thấy: " + hits.Length() + "</a></div></div>";
result += "<div class='ct_topic_l'><div class='ct_topic_r1'>";
for (int i = pageIndex * 20 - 20; i < pageIndex * 20 && i < hits.Length(); i++)
{
string detail = hits.Doc(i).Get("ArticleDetail");
Lucene.Net.Analysis.TokenStream ts = (new Lucene.Net.Analysis.Standard.StandardAnalyzer()).TokenStream("ArticleDetail", new System.IO.StringReader(detail));
SearchArticle searchArticle = new SearchArticle();
searchArticle.Id = hits.Doc(i).Get("ArticleId");;
searchArticle.Title = hits.Doc(i).Get("ArticleTitle");
searchArticle.Highligth = highlighter.GetBestFragment(ts, detail);
searchArticleList.Add(searchArticle);
}
reader.Close();
JavaScriptSerializer serializer = new JavaScriptSerializer();
Dictionary <string, object> resultDic = new Dictionary <string, object>();
resultDic["Count"] = hits.Length();
resultDic["Data"] = searchArticleList;
result = serializer.Serialize(resultDic);
}
catch (Exception e)
{
}
return(result);
}
private int Numdoc()
{
IndexReader rs = IndexReader.Open(spellindex);
int num = rs.NumDocs();
Assert.IsTrue(num != 0);
//System.out.println("num docs: " + num);
rs.Close();
return(num);
}
/// <summary> Note that the underlying IndexReader is not closed, if
/// IndexSearcher was constructed with IndexSearcher(IndexReader r).
/// If the IndexReader was supplied implicitly by specifying a directory, then
/// the IndexReader gets closed.
/// </summary>
public override void Close()
{
if (closeReader)
{
FieldSortedHitQueue.Close(reader);
Lucene.Net.Search.FieldCache_Fields.DEFAULT.Close(reader);
reader.Close();
}
}
public virtual void TestSetBufferSize()
{
System.IO.FileInfo indexDir = new System.IO.FileInfo(System.IO.Path.Combine(SupportClass.AppSettings.Get("tempDir", ""), "testSetBufferSize"));
MockFSDirectory dir = new MockFSDirectory(indexDir, NewRandom());
try
{
IndexWriter writer = new IndexWriter(dir, new WhitespaceAnalyzer(), true, IndexWriter.MaxFieldLength.LIMITED);
writer.SetUseCompoundFile(false);
for (int i = 0; i < 37; i++)
{
Document doc = new Document();
doc.Add(new Field("content", "aaa bbb ccc ddd" + i, Field.Store.YES, Field.Index.ANALYZED));
doc.Add(new Field("id", "" + i, Field.Store.YES, Field.Index.ANALYZED));
writer.AddDocument(doc);
}
writer.Close();
dir.allIndexInputs.Clear();
IndexReader reader = IndexReader.Open(dir);
Term aaa = new Term("content", "aaa");
Term bbb = new Term("content", "bbb");
Term ccc = new Term("content", "ccc");
Assert.AreEqual(37, reader.DocFreq(ccc));
reader.DeleteDocument(0);
Assert.AreEqual(37, reader.DocFreq(aaa));
dir.tweakBufferSizes();
reader.DeleteDocument(4);
Assert.AreEqual(reader.DocFreq(bbb), 37);
dir.tweakBufferSizes();
IndexSearcher searcher = new IndexSearcher(reader);
ScoreDoc[] hits = searcher.Search(new TermQuery(bbb), null, 1000).scoreDocs;
dir.tweakBufferSizes();
Assert.AreEqual(35, hits.Length);
dir.tweakBufferSizes();
hits = searcher.Search(new TermQuery(new Term("id", "33")), null, 1000).scoreDocs;
dir.tweakBufferSizes();
Assert.AreEqual(1, hits.Length);
hits = searcher.Search(new TermQuery(aaa), null, 1000).scoreDocs;
dir.tweakBufferSizes();
Assert.AreEqual(35, hits.Length);
searcher.Close();
reader.Close();
}
finally
{
_TestUtil.RmDir(indexDir);
}
}
public virtual void TestBinaryFieldInIndex()
{
IFieldable binaryFldStored = new Field("binaryStored", System.Text.UTF8Encoding.UTF8.GetBytes(binaryValStored), Field.Store.YES);
IFieldable stringFldStored = new Field("stringStored", binaryValStored, Field.Store.YES, Field.Index.NO, Field.TermVector.NO);
// binary fields with store off are not allowed
Assert.Throws <ArgumentException>(
() => new Field("fail", System.Text.Encoding.UTF8.GetBytes(binaryValStored), Field.Store.NO));
Document doc = new Document();
doc.Add(binaryFldStored);
doc.Add(stringFldStored);
/* test for field count */
Assert.AreEqual(2, doc.fields_ForNUnit.Count);
/* add the doc to a ram index */
MockRAMDirectory dir = new MockRAMDirectory();
IndexWriter writer = new IndexWriter(dir, new StandardAnalyzer(Lucene.Net.Util.Version.LUCENE_CURRENT), true, IndexWriter.MaxFieldLength.LIMITED);
writer.AddDocument(doc);
writer.Close();
/* open a reader and fetch the document */
IndexReader reader = IndexReader.Open(dir, false);
Document docFromReader = reader.Document(0);
Assert.IsTrue(docFromReader != null);
/* fetch the binary stored field and compare it's content with the original one */
System.String binaryFldStoredTest = new System.String(System.Text.UTF8Encoding.UTF8.GetChars(docFromReader.GetBinaryValue("binaryStored")));
Assert.IsTrue(binaryFldStoredTest.Equals(binaryValStored));
/* fetch the string field and compare it's content with the original one */
System.String stringFldStoredTest = docFromReader.Get("stringStored");
Assert.IsTrue(stringFldStoredTest.Equals(binaryValStored));
/* delete the document from index */
reader.DeleteDocument(0);
Assert.AreEqual(0, reader.NumDocs());
reader.Close();
dir.Close();
}
public virtual void TestBasic()
{
HashSet <string> fileExtensions = new HashSet <string>();
fileExtensions.Add("fdt");
fileExtensions.Add("fdx");
Directory primaryDir = new MockRAMDirectory();
RAMDirectory secondaryDir = new MockRAMDirectory();
FileSwitchDirectory fsd = new FileSwitchDirectory(fileExtensions, primaryDir, secondaryDir, true);
IndexWriter writer = new IndexWriter(fsd, new WhitespaceAnalyzer(), IndexWriter.MaxFieldLength.LIMITED, null);
writer.UseCompoundFile = false;
TestIndexWriterReader.CreateIndexNoClose(true, "ram", writer);
IndexReader reader = writer.GetReader(null);
Assert.AreEqual(100, reader.MaxDoc);
writer.Commit(null);
// we should see only fdx,fdt files here
System.String[] files = primaryDir.ListAll(null);
Assert.IsTrue(files.Length > 0);
for (int x = 0; x < files.Length; x++)
{
System.String ext = FileSwitchDirectory.GetExtension(files[x]);
Assert.IsTrue(fileExtensions.Contains(ext));
}
files = secondaryDir.ListAll(null);
Assert.IsTrue(files.Length > 0);
// we should not see fdx,fdt files here
for (int x = 0; x < files.Length; x++)
{
System.String ext = FileSwitchDirectory.GetExtension(files[x]);
Assert.IsFalse(fileExtensions.Contains(ext));
}
reader.Close();
writer.Close();
files = fsd.ListAll(null);
for (int i = 0; i < files.Length; i++)
{
Assert.IsNotNull(files[i]);
}
fsd.Close();
}
public virtual void TestCaching()
{
Directory dir = new RAMDirectory();
IndexWriter writer = new IndexWriter(dir, new SimpleAnalyzer(), IndexWriter.MaxFieldLength.LIMITED);
Document doc = new Document();
TokenStream stream = new AnonymousClassTokenStream(this);
stream = new CachingTokenFilter(stream);
doc.Add(new Field("preanalyzed", stream, TermVector.NO));
// 1) we consume all tokens twice before we add the doc to the index
checkTokens(stream);
stream.Reset();
checkTokens(stream);
// 2) now add the document to the index and verify if all tokens are indexed
// don't reset the stream here, the DocumentWriter should do that implicitly
writer.AddDocument(doc);
writer.Close();
IndexReader reader = IndexReader.Open(dir);
TermPositions termPositions = reader.TermPositions(new Term("preanalyzed", "term1"));
Assert.IsTrue(termPositions.Next());
Assert.AreEqual(1, termPositions.Freq());
Assert.AreEqual(0, termPositions.NextPosition());
termPositions.Seek(new Term("preanalyzed", "term2"));
Assert.IsTrue(termPositions.Next());
Assert.AreEqual(2, termPositions.Freq());
Assert.AreEqual(1, termPositions.NextPosition());
Assert.AreEqual(3, termPositions.NextPosition());
termPositions.Seek(new Term("preanalyzed", "term3"));
Assert.IsTrue(termPositions.Next());
Assert.AreEqual(1, termPositions.Freq());
Assert.AreEqual(2, termPositions.NextPosition());
reader.Close();
// 3) reset stream and consume tokens again
stream.Reset();
checkTokens(stream);
}
public virtual void TestMissingTerms()
{
System.String fieldName = "field1";
MockRAMDirectory rd = new MockRAMDirectory();
IndexWriter w = new IndexWriter(rd, new KeywordAnalyzer(), MaxFieldLength.UNLIMITED);
for (int i = 0; i < 100; i++)
{
Document doc = new Document();
int term = i * 10; //terms are units of 10;
doc.Add(new Field(fieldName, "" + term, Field.Store.YES, Field.Index.NOT_ANALYZED));
w.AddDocument(doc);
}
w.Close();
IndexReader reader = IndexReader.Open(rd, true);
IndexSearcher searcher = new IndexSearcher(reader);
int numDocs = reader.NumDocs();
ScoreDoc[] results;
MatchAllDocsQuery q = new MatchAllDocsQuery();
System.Collections.ArrayList terms = new System.Collections.ArrayList();
terms.Add("5");
results = searcher.Search(q, new FieldCacheTermsFilter(fieldName, (System.String[])terms.ToArray(typeof(System.String))), numDocs).ScoreDocs;
Assert.AreEqual(0, results.Length, "Must match nothing");
terms = new System.Collections.ArrayList();
terms.Add("10");
results = searcher.Search(q, new FieldCacheTermsFilter(fieldName, (System.String[])terms.ToArray(typeof(System.String))), numDocs).ScoreDocs;
Assert.AreEqual(1, results.Length, "Must match 1");
terms = new System.Collections.ArrayList();
terms.Add("10");
terms.Add("20");
results = searcher.Search(q, new FieldCacheTermsFilter(fieldName, (System.String[])terms.ToArray(typeof(System.String))), numDocs).ScoreDocs;
Assert.AreEqual(2, results.Length, "Must match 2");
reader.Close();
rd.Close();
}
public virtual void TestFilterWorks()
{
Directory dir = new RAMDirectory();
IndexWriter writer = new IndexWriter(dir, new SimpleAnalyzer(), true, IndexWriter.MaxFieldLength.LIMITED);
for (int i = 0; i < 500; i++)
{
Document document = new Document();
document.Add(new Field("field", English.IntToEnglish(i) + " equals " + English.IntToEnglish(i), Field.Store.NO, Field.Index.ANALYZED));
writer.AddDocument(document);
}
writer.Close();
IndexReader reader = IndexReader.Open(dir, true);
SpanTermQuery query = new SpanTermQuery(new Term("field", English.IntToEnglish(10).Trim()));
SpanQueryFilter filter = new SpanQueryFilter(query);
SpanFilterResult result = filter.BitSpans(reader);
DocIdSet docIdSet = result.DocIdSet;
Assert.IsTrue(docIdSet != null, "docIdSet is null and it shouldn't be");
AssertContainsDocId("docIdSet doesn't contain docId 10", docIdSet, 10);
var spans = result.Positions;
Assert.IsTrue(spans != null, "spans is null and it shouldn't be");
int size = GetDocIdSetSize(docIdSet);
Assert.IsTrue(spans.Count == size, "spans Size: " + spans.Count + " is not: " + size);
for (System.Collections.IEnumerator iterator = spans.GetEnumerator(); iterator.MoveNext();)
{
SpanFilterResult.PositionInfo info = (SpanFilterResult.PositionInfo)iterator.Current;
Assert.IsTrue(info != null, "info is null and it shouldn't be");
//The doc should indicate the bit is on
AssertContainsDocId("docIdSet doesn't contain docId " + info.Doc, docIdSet, info.Doc);
//There should be two positions in each
Assert.IsTrue(info.Positions.Count == 2, "info.getPositions() Size: " + info.Positions.Count + " is not: " + 2);
}
reader.Close();
}
public virtual void TestSetNorm_Renamed()
{
RAMDirectory store = new RAMDirectory();
IndexWriter writer = new IndexWriter(store, new SimpleAnalyzer(), true, IndexWriter.MaxFieldLength.LIMITED);
// add the same document four times
IFieldable f1 = new Field("field", "word", Field.Store.YES, Field.Index.ANALYZED);
Document d1 = new Document();
d1.Add(f1);
writer.AddDocument(d1);
writer.AddDocument(d1);
writer.AddDocument(d1);
writer.AddDocument(d1);
writer.Close();
// reset the boost of each instance of this document
IndexReader reader = IndexReader.Open(store, false);
reader.SetNorm(0, "field", 1.0f);
reader.SetNorm(1, "field", 2.0f);
reader.SetNorm(2, "field", 4.0f);
reader.SetNorm(3, "field", 16.0f);
reader.Close();
// check that searches are ordered by this boost
float[] scores = new float[4];
new IndexSearcher(store, true).Search(new TermQuery(new Term("field", "word")), new AnonymousClassCollector(scores, this));
float lastScore = 0.0f;
for (int i = 0; i < 4; i++)
{
Assert.IsTrue(scores[i] > lastScore);
lastScore = scores[i];
}
}
public virtual void TestGiga()
{
StandardAnalyzer analyzer = new StandardAnalyzer();
Directory index = new MockRAMDirectory();
IndexWriter w = new IndexWriter(index, analyzer, true, IndexWriter.MaxFieldLength.UNLIMITED);
AddDoc("Lucene in Action", w);
AddDoc("Lucene for Dummies", w);
// addDoc("Giga", w);
AddDoc("Giga byte", w);
AddDoc("ManagingGigabytesManagingGigabyte", w);
AddDoc("ManagingGigabytesManagingGigabytes", w);
AddDoc("The Art of Computer Science", w);
AddDoc("J. K. Rowling", w);
AddDoc("JK Rowling", w);
AddDoc("Joanne K Roling", w);
AddDoc("Bruce Willis", w);
AddDoc("Willis bruce", w);
AddDoc("Brute willis", w);
AddDoc("B. willis", w);
IndexReader r = w.GetReader();
w.Close();
Query q = new QueryParser("field", analyzer).Parse("giga~0.9");
// 3. search
IndexSearcher searcher = new IndexSearcher(r);
ScoreDoc[] hits = searcher.Search(q, 10).scoreDocs;
Assert.AreEqual(1, hits.Length);
Assert.AreEqual(searcher.Doc(hits[0].doc).Get("field"), "Giga byte");
r.Close();
}
public virtual void TestNullOrSubScorer()
{
Directory dir = new MockRAMDirectory();
IndexWriter w = new IndexWriter(dir, new WhitespaceAnalyzer(), IndexWriter.MaxFieldLength.UNLIMITED);
Document doc = new Document();
doc.Add(new Field("field", "a b c d", Field.Store.NO, Field.Index.ANALYZED));
w.AddDocument(doc);
IndexReader r = w.GetReader();
IndexSearcher s = new IndexSearcher(r);
BooleanQuery q = new BooleanQuery();
q.Add(new TermQuery(new Term("field", "a")), BooleanClause.Occur.SHOULD);
// PhraseQuery w/ no terms added returns a null scorer
PhraseQuery pq = new PhraseQuery();
q.Add(pq, BooleanClause.Occur.SHOULD);
Assert.AreEqual(1, s.Search(q, 10).totalHits);
// A required clause which returns null scorer should return null scorer to
// IndexSearcher.
q = new BooleanQuery();
pq = new PhraseQuery();
q.Add(new TermQuery(new Term("field", "a")), BooleanClause.Occur.SHOULD);
q.Add(pq, BooleanClause.Occur.MUST);
Assert.AreEqual(0, s.Search(q, 10).totalHits);
DisjunctionMaxQuery dmq = new DisjunctionMaxQuery(1.0f);
dmq.Add(new TermQuery(new Term("field", "a")));
dmq.Add(pq);
Assert.AreEqual(1, s.Search(dmq, 10).totalHits);
r.Close();
w.Close();
dir.Close();
}
public virtual void TestCachingWorks()
{
Directory dir = new RAMDirectory();
IndexWriter writer = new IndexWriter(dir, new StandardAnalyzer(), true);
writer.Close();
IndexReader reader = IndexReader.Open(dir);
MockFilter filter = new MockFilter();
CachingWrapperFilter cacher = new CachingWrapperFilter(filter);
// first time, nested filter is called
cacher.Bits(reader);
Assert.IsTrue(filter.WasCalled(), "first time");
// second time, nested filter should not be called
filter.Clear();
cacher.Bits(reader);
Assert.IsFalse(filter.WasCalled(), "second time");
reader.Close();
}
/// <summary> Index a Dictionary</summary>
/// <param name="dict">the dictionary to index
/// </param>
/// <throws> IOException </throws>
public virtual void IndexDictionary(Dictionary dict)
{
IndexReader.Unlock(spellindex);
IndexWriter writer = new IndexWriter(spellindex, new WhitespaceAnalyzer(), !IndexReader.IndexExists(spellindex));
writer.SetMergeFactor(300);
writer.SetMaxBufferedDocs(150);
System.Collections.IEnumerator iter = dict.GetWordsIterator();
while (iter.MoveNext())
{
System.String word = (System.String)iter.Current;
int len = word.Length;
if (len < 3)
{
continue; // too short we bail but "too long" is fine...
}
if (this.Exist(word))
{
// if the word already exist in the gramindex
continue;
}
// ok index the word
Document doc = CreateDocument(word, GetMin(len), GetMax(len));
writer.AddDocument(doc);
}
// close writer
writer.Optimize();
writer.Close();
// close reader
reader.Close();
reader = null;
}
public virtual void TestBinaryFieldInIndex()
{
Fieldable binaryFldStored = new Field("binaryStored", System.Text.UTF8Encoding.UTF8.GetBytes(binaryValStored), Field.Store.YES);
Fieldable binaryFldCompressed = new Field("binaryCompressed", System.Text.UTF8Encoding.UTF8.GetBytes(binaryValCompressed), Field.Store.COMPRESS);
Fieldable stringFldStored = new Field("stringStored", binaryValStored, Field.Store.YES, Field.Index.NO, Field.TermVector.NO);
Fieldable stringFldCompressed = new Field("stringCompressed", binaryValCompressed, Field.Store.COMPRESS, Field.Index.NO, Field.TermVector.NO);
try
{
// binary fields with store off are not allowed
new Field("fail", System.Text.UTF8Encoding.UTF8.GetBytes(binaryValCompressed), Field.Store.NO);
Assert.Fail();
}
catch (System.ArgumentException iae)
{
;
}
Document doc = new Document();
doc.Add(binaryFldStored);
doc.Add(binaryFldCompressed);
doc.Add(stringFldStored);
doc.Add(stringFldCompressed);
/** test for field count */
Assert.AreEqual(4, doc.fields_ForNUnit.Count);
/** add the doc to a ram index */
MockRAMDirectory dir = new MockRAMDirectory();
IndexWriter writer = new IndexWriter(dir, new StandardAnalyzer(), true, IndexWriter.MaxFieldLength.LIMITED);
writer.AddDocument(doc);
writer.Close();
/** open a reader and fetch the document */
IndexReader reader = IndexReader.Open(dir);
Document docFromReader = reader.Document(0);
Assert.IsTrue(docFromReader != null);
/** fetch the binary stored field and compare it's content with the original one */
System.String binaryFldStoredTest = new System.String(System.Text.UTF8Encoding.UTF8.GetChars(docFromReader.GetBinaryValue("binaryStored")));
Assert.IsTrue(binaryFldStoredTest.Equals(binaryValStored));
/** fetch the binary compressed field and compare it's content with the original one */
System.String binaryFldCompressedTest = new System.String(System.Text.UTF8Encoding.UTF8.GetChars(docFromReader.GetBinaryValue("binaryCompressed")));
Assert.IsTrue(binaryFldCompressedTest.Equals(binaryValCompressed));
/** fetch the string field and compare it's content with the original one */
System.String stringFldStoredTest = docFromReader.Get("stringStored");
Assert.IsTrue(stringFldStoredTest.Equals(binaryValStored));
/** fetch the compressed string field and compare it's content with the original one */
System.String stringFldCompressedTest = docFromReader.Get("stringCompressed");
Assert.IsTrue(stringFldCompressedTest.Equals(binaryValCompressed));
/** delete the document from index */
reader.DeleteDocument(0);
Assert.AreEqual(0, reader.NumDocs());
reader.Close();
dir.Close();
}
public static void DeleteArticleIndexing(Guid articleId)
{
Lucene.Net.Index.IndexReader reader = Lucene.Net.Index.IndexReader.Open(HttpContext.Current.Server.MapPath(ConfigurationManager.AppSettings["IndexingArticle"]));
reader.DeleteDocuments(new Lucene.Net.Index.Term("ArticleId", articleId.ToString()));
reader.Close();
}
public virtual void TestEmptyIndex()
{
// creating two directories for indices
Directory indexStoreA = new MockRAMDirectory();
Directory indexStoreB = new MockRAMDirectory();
// creating a document to store
Document lDoc = new Document();
lDoc.Add(new Field("fulltext", "Once upon a time.....", Field.Store.YES, Field.Index.ANALYZED));
lDoc.Add(new Field("id", "doc1", Field.Store.YES, Field.Index.NOT_ANALYZED));
lDoc.Add(new Field("handle", "1", Field.Store.YES, Field.Index.NOT_ANALYZED));
// creating a document to store
Document lDoc2 = new Document();
lDoc2.Add(new Field("fulltext", "in a galaxy far far away.....", Field.Store.YES, Field.Index.ANALYZED));
lDoc2.Add(new Field("id", "doc2", Field.Store.YES, Field.Index.NOT_ANALYZED));
lDoc2.Add(new Field("handle", "1", Field.Store.YES, Field.Index.NOT_ANALYZED));
// creating a document to store
Document lDoc3 = new Document();
lDoc3.Add(new Field("fulltext", "a bizarre bug manifested itself....", Field.Store.YES, Field.Index.ANALYZED));
lDoc3.Add(new Field("id", "doc3", Field.Store.YES, Field.Index.NOT_ANALYZED));
lDoc3.Add(new Field("handle", "1", Field.Store.YES, Field.Index.NOT_ANALYZED));
// creating an index writer for the first index
IndexWriter writerA = new IndexWriter(indexStoreA, new StandardAnalyzer(Util.Version.LUCENE_CURRENT), true, IndexWriter.MaxFieldLength.LIMITED);
// creating an index writer for the second index, but writing nothing
IndexWriter writerB = new IndexWriter(indexStoreB, new StandardAnalyzer(Util.Version.LUCENE_CURRENT), true, IndexWriter.MaxFieldLength.LIMITED);
//--------------------------------------------------------------------
// scenario 1
//--------------------------------------------------------------------
// writing the documents to the first index
writerA.AddDocument(lDoc);
writerA.AddDocument(lDoc2);
writerA.AddDocument(lDoc3);
writerA.Optimize();
writerA.Close();
// closing the second index
writerB.Close();
// creating the query
QueryParser parser = new QueryParser(Util.Version.LUCENE_CURRENT, "fulltext", new StandardAnalyzer(Util.Version.LUCENE_CURRENT));
Query query = parser.Parse("handle:1");
// building the searchables
Searcher[] searchers = new Searcher[2];
// VITAL STEP:adding the searcher for the empty index first, before the searcher for the populated index
searchers[0] = new IndexSearcher(indexStoreB, true);
searchers[1] = new IndexSearcher(indexStoreA, true);
// creating the multiSearcher
Searcher mSearcher = GetMultiSearcherInstance(searchers);
// performing the search
ScoreDoc[] hits = mSearcher.Search(query, null, 1000).ScoreDocs;
Assert.AreEqual(3, hits.Length);
// iterating over the hit documents
for (int i = 0; i < hits.Length; i++)
{
mSearcher.Doc(hits[i].Doc);
}
mSearcher.Close();
//--------------------------------------------------------------------
// scenario 2
//--------------------------------------------------------------------
// adding one document to the empty index
writerB = new IndexWriter(indexStoreB, new StandardAnalyzer(Util.Version.LUCENE_CURRENT), false, IndexWriter.MaxFieldLength.LIMITED);
writerB.AddDocument(lDoc);
writerB.Optimize();
writerB.Close();
// building the searchables
Searcher[] searchers2 = new Searcher[2];
// VITAL STEP:adding the searcher for the empty index first, before the searcher for the populated index
searchers2[0] = new IndexSearcher(indexStoreB, true);
searchers2[1] = new IndexSearcher(indexStoreA, true);
// creating the mulitSearcher
MultiSearcher mSearcher2 = GetMultiSearcherInstance(searchers2);
// performing the same search
ScoreDoc[] hits2 = mSearcher2.Search(query, null, 1000).ScoreDocs;
Assert.AreEqual(4, hits2.Length);
// iterating over the hit documents
for (int i = 0; i < hits2.Length; i++)
{
// no exception should happen at this point
mSearcher2.Doc(hits2[i].Doc);
}
// test the subSearcher() method:
Query subSearcherQuery = parser.Parse("id:doc1");
hits2 = mSearcher2.Search(subSearcherQuery, null, 1000).ScoreDocs;
Assert.AreEqual(2, hits2.Length);
Assert.AreEqual(0, mSearcher2.SubSearcher(hits2[0].Doc)); // hit from searchers2[0]
Assert.AreEqual(1, mSearcher2.SubSearcher(hits2[1].Doc)); // hit from searchers2[1]
subSearcherQuery = parser.Parse("id:doc2");
hits2 = mSearcher2.Search(subSearcherQuery, null, 1000).ScoreDocs;
Assert.AreEqual(1, hits2.Length);
Assert.AreEqual(1, mSearcher2.SubSearcher(hits2[0].Doc)); // hit from searchers2[1]
mSearcher2.Close();
//--------------------------------------------------------------------
// scenario 3
//--------------------------------------------------------------------
// deleting the document just added, this will cause a different exception to take place
Term term = new Term("id", "doc1");
IndexReader readerB = IndexReader.Open(indexStoreB, false);
readerB.DeleteDocuments(term);
readerB.Close();
// optimizing the index with the writer
writerB = new IndexWriter(indexStoreB, new StandardAnalyzer(Util.Version.LUCENE_CURRENT), false, IndexWriter.MaxFieldLength.LIMITED);
writerB.Optimize();
writerB.Close();
// building the searchables
Searcher[] searchers3 = new Searcher[2];
searchers3[0] = new IndexSearcher(indexStoreB, true);
searchers3[1] = new IndexSearcher(indexStoreA, true);
// creating the mulitSearcher
Searcher mSearcher3 = GetMultiSearcherInstance(searchers3);
// performing the same search
ScoreDoc[] hits3 = mSearcher3.Search(query, null, 1000).ScoreDocs;
Assert.AreEqual(3, hits3.Length);
// iterating over the hit documents
for (int i = 0; i < hits3.Length; i++)
{
mSearcher3.Doc(hits3[i].Doc);
}
mSearcher3.Close();
indexStoreA.Close();
indexStoreB.Close();
}
/* Walk directory hierarchy in uid order, while keeping uid iterator from
/* existing index in sync. Mismatches indicate one of: (a) old documents to
/* be deleted; (b) unchanged documents, to be left alone; or (c) new
/* documents, to be indexed.
*/
private static void IndexDocs(System.IO.DirectoryInfo file, System.IO.DirectoryInfo index, bool create)
{
if (!create)
{
// incrementally update
reader = IndexReader.Open(FSDirectory.Open(index), false); // open existing index
uidIter = reader.Terms(new Term("uid", "")); // init uid iterator
IndexDocs(file);
if (deleting)
{
// delete rest of stale docs
while (uidIter.Term() != null && (System.Object) uidIter.Term().Field == (System.Object) "uid")
{
System.Console.Out.WriteLine("deleting " + HTMLDocument.Uid2url(uidIter.Term().Text));
reader.DeleteDocuments(uidIter.Term());
uidIter.Next();
}
deleting = false;
}
uidIter.Close(); // close uid iterator
reader.Close(); // close existing index
}
// don't have exisiting
else
IndexDocs(file);
}
