protected virtual void Dispose(bool disposing)
{
if (disposing)
{
searcherManager?.Dispose();
analyzer?.Dispose();
writer?.Dispose();
}
}
public SearchResults Search(string queryString)
{
int resultsPerPage = 10;
var analyzer = SetupAnalyzer();
var queryParser = SetupQueryParser(analyzer);
IEnumerable <FieldDefinition> fields = new List <FieldDefinition> {
new FieldDefinition {
Name = "title", isDefault = true
},
new FieldDefinition {
Name = "description", isDefault = false
}
};
// Query query = BuildQuery(queryString,queryParser); // BuildQuery(queryString, fields); //
Query query;
if (queryString.EndsWith('~'))
{
query = BuildQuery(queryString, queryParser);
}
else
{
query = BuildQuery(queryString, fields);
}
using (var writer = new IndexWriter(_directory,
new IndexWriterConfig(MATCH_LUCENE_VERSION, analyzer)))
{
var searchManager = new SearcherManager(writer, true, null);
searchManager.MaybeRefreshBlocking();
IndexSearcher searcher = searchManager.Acquire();
try
{
TopDocs topDocs = searcher.Search(query, resultsPerPage);
return(CompileResults(searcher, topDocs));
}
finally
{
searchManager?.Release(searcher);
searchManager?.Dispose();
searcher = null;
analyzer?.Dispose();
ReleaseWriteLock();
}
}
}
public void Dispose()
{
searchManager?.Dispose();
analyzer?.Dispose();
writer?.Dispose();
}
public void Dispose()
{
indexWriter?.Dispose();
searcherManager?.Dispose();
}
public override void Build(IInputEnumerator enumerator)
{
if (m_searcherMgr != null)
{
m_searcherMgr.Dispose();
m_searcherMgr = null;
}
if (writer != null)
{
writer.Dispose();
writer = null;
}
AtomicReader r = null;
bool success = false;
try
{
// First pass: build a temporary normal Lucene index,
// just indexing the suggestions as they iterate:
writer = new IndexWriter(dir, GetIndexWriterConfig(matchVersion, GetGramAnalyzer(), OpenMode.CREATE));
//long t0 = System.nanoTime();
// TODO: use threads?
BytesRef text;
while (enumerator.MoveNext())
{
text = enumerator.Current;
BytesRef payload;
if (enumerator.HasPayloads)
{
payload = enumerator.Payload;
}
else
{
payload = null;
}
Add(text, enumerator.Contexts, enumerator.Weight, payload);
}
//System.out.println("initial indexing time: " + ((System.nanoTime()-t0)/1000000) + " msec");
if (commitOnBuild) //LUCENENET specific -Support for LUCENE - 5889.
{
Commit();
}
m_searcherMgr = new SearcherManager(writer, true, null);
success = true;
}
finally
{
if (success)
{
IOUtils.Dispose(r);
}
else
{
IOUtils.DisposeWhileHandlingException(writer, r);
writer = null;
}
}
}
public void Dispose()
{
_nrtReopenThread.Dispose();
_searcherManager.Dispose();
_writer.Dispose();
}
public virtual void TestMaybeRefreshBlockingLock()
{
// make sure that maybeRefreshBlocking releases the lock, otherwise other
// threads cannot obtain it.
Directory dir = NewDirectory();
RandomIndexWriter w = new RandomIndexWriter(Random(), dir);
w.Dispose();
SearcherManager sm = new SearcherManager(dir, null);
ThreadClass t = new ThreadAnonymousInnerClassHelper2(this, sm);
t.Start();
t.Join();
// if maybeRefreshBlocking didn't release the lock, this will fail.
Assert.IsTrue(sm.MaybeRefresh(), "failde to obtain the refreshLock!");
sm.Dispose();
dir.Dispose();
}
public virtual void TestListenerCalled()
{
Directory dir = NewDirectory();
IndexWriter iw = new IndexWriter(dir, new IndexWriterConfig(TEST_VERSION_CURRENT, null));
AtomicBoolean afterRefreshCalled = new AtomicBoolean(false);
SearcherManager sm = new SearcherManager(iw, false, new SearcherFactory());
sm.AddListener(new RefreshListenerAnonymousInnerClassHelper(this, afterRefreshCalled));
iw.AddDocument(new Document());
iw.Commit();
Assert.IsFalse(afterRefreshCalled.Get());
sm.MaybeRefreshBlocking();
Assert.IsTrue(afterRefreshCalled.Get());
sm.Dispose();
iw.Dispose();
dir.Dispose();
}
public virtual void TestEnsureOpen()
{
Directory dir = NewDirectory();
(new IndexWriter(dir, new IndexWriterConfig(TEST_VERSION_CURRENT, null))).Dispose();
SearcherManager sm = new SearcherManager(dir, null);
IndexSearcher s = sm.Acquire();
sm.Dispose();
// this should succeed;
sm.Release(s);
try
{
// this should fail
sm.Acquire();
}
catch (AlreadyClosedException e)
{
// ok
}
try
{
// this should fail
sm.MaybeRefresh();
}
catch (AlreadyClosedException e)
{
// ok
}
dir.Dispose();
}
public virtual void TestCloseTwice()
{
// test that we can close SM twice (per IDisposable's contract).
Directory dir = NewDirectory();
(new IndexWriter(dir, new IndexWriterConfig(TEST_VERSION_CURRENT, null))).Dispose();
SearcherManager sm = new SearcherManager(dir, null);
sm.Dispose();
sm.Dispose();
dir.Dispose();
}
// LUCENE-5461
public virtual void TestCRTReopen()
{
//test behaving badly
//should be high enough
int maxStaleSecs = 20;
//build crap data just to store it.
string s = " abcdefghijklmnopqrstuvwxyz ";
char[] chars = s.ToCharArray();
StringBuilder builder = new StringBuilder(2048);
for (int i = 0; i < 2048; i++)
{
builder.Append(chars[Random().Next(chars.Length)]);
}
string content = builder.ToString();
SnapshotDeletionPolicy sdp = new SnapshotDeletionPolicy(new KeepOnlyLastCommitDeletionPolicy());
Directory dir = new NRTCachingDirectory(NewFSDirectory(CreateTempDir("nrt")), 5, 128);
IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_46, new MockAnalyzer(Random()));
config.SetIndexDeletionPolicy(sdp);
config.SetOpenMode(IndexWriterConfig.OpenMode_e.CREATE_OR_APPEND);
IndexWriter iw = new IndexWriter(dir, config);
SearcherManager sm = new SearcherManager(iw, true, new SearcherFactory());
TrackingIndexWriter tiw = new TrackingIndexWriter(iw);
ControlledRealTimeReopenThread<IndexSearcher> controlledRealTimeReopenThread = new ControlledRealTimeReopenThread<IndexSearcher>(tiw, sm, maxStaleSecs, 0);
controlledRealTimeReopenThread.SetDaemon(true);
controlledRealTimeReopenThread.Start();
IList<Thread> commitThreads = new List<Thread>();
for (int i = 0; i < 500; i++)
{
if (i > 0 && i % 50 == 0)
{
Thread commitThread = new Thread(new RunnableAnonymousInnerClassHelper(this, sdp, dir, iw));
commitThread.Start();
commitThreads.Add(commitThread);
}
Document d = new Document();
d.Add(new TextField("count", i + "", Field.Store.NO));
d.Add(new TextField("content", content, Field.Store.YES));
long start = DateTime.Now.Millisecond;
long l = tiw.AddDocument(d);
controlledRealTimeReopenThread.WaitForGeneration(l);
long wait = DateTime.Now.Millisecond - start;
Assert.IsTrue(wait < (maxStaleSecs * 1000), "waited too long for generation " + wait);
IndexSearcher searcher = sm.Acquire();
TopDocs td = searcher.Search(new TermQuery(new Term("count", i + "")), 10);
sm.Release(searcher);
Assert.AreEqual(1, td.TotalHits);
}
foreach (Thread commitThread in commitThreads)
{
commitThread.Join();
}
controlledRealTimeReopenThread.Dispose();
sm.Dispose();
iw.Dispose();
dir.Dispose();
}
