public virtual void TestPrepareCommit()
{
Directory dir = NewDirectory();
IndexWriter writer = new IndexWriter(dir, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())).SetMaxBufferedDocs(2).SetMergePolicy(NewLogMergePolicy(5)));
writer.Commit();
for (int i = 0; i < 23; i++)
{
TestIndexWriter.AddDoc(writer);
}
DirectoryReader reader = DirectoryReader.Open(dir);
Assert.AreEqual(0, reader.NumDocs);
writer.PrepareCommit();
IndexReader reader2 = DirectoryReader.Open(dir);
Assert.AreEqual(0, reader2.NumDocs);
writer.Commit();
IndexReader reader3 = DirectoryReader.OpenIfChanged(reader);
Assert.IsNotNull(reader3);
Assert.AreEqual(0, reader.NumDocs);
Assert.AreEqual(0, reader2.NumDocs);
Assert.AreEqual(23, reader3.NumDocs);
reader.Dispose();
reader2.Dispose();
for (int i = 0; i < 17; i++)
{
TestIndexWriter.AddDoc(writer);
}
Assert.AreEqual(23, reader3.NumDocs);
reader3.Dispose();
reader = DirectoryReader.Open(dir);
Assert.AreEqual(23, reader.NumDocs);
reader.Dispose();
writer.PrepareCommit();
reader = DirectoryReader.Open(dir);
Assert.AreEqual(23, reader.NumDocs);
reader.Dispose();
writer.Commit();
reader = DirectoryReader.Open(dir);
Assert.AreEqual(40, reader.NumDocs);
reader.Dispose();
writer.Dispose();
dir.Dispose();
}
public virtual void TestCommitOnClose()
{
Directory dir = NewDirectory();
IndexWriter writer = new IndexWriter(dir, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())));
for (int i = 0; i < 14; i++)
{
TestIndexWriter.AddDoc(writer);
}
writer.Dispose();
Term searchTerm = new Term("content", "aaa");
DirectoryReader reader = DirectoryReader.Open(dir);
IndexSearcher searcher = NewSearcher(reader);
ScoreDoc[] hits = searcher.Search(new TermQuery(searchTerm), null, 1000).ScoreDocs;
Assert.AreEqual(14, hits.Length, "first number of hits");
reader.Dispose();
reader = DirectoryReader.Open(dir);
writer = new IndexWriter(dir, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())));
for (int i = 0; i < 3; i++)
{
for (int j = 0; j < 11; j++)
{
TestIndexWriter.AddDoc(writer);
}
IndexReader r = DirectoryReader.Open(dir);
searcher = NewSearcher(r);
hits = searcher.Search(new TermQuery(searchTerm), null, 1000).ScoreDocs;
Assert.AreEqual(14, hits.Length, "reader incorrectly sees changes from writer");
r.Dispose();
Assert.IsTrue(reader.Current, "reader should have still been current");
}
// Now, close the writer:
writer.Dispose();
Assert.IsFalse(reader.Current, "reader should not be current now");
IndexReader ir = DirectoryReader.Open(dir);
searcher = NewSearcher(ir);
hits = searcher.Search(new TermQuery(searchTerm), null, 1000).ScoreDocs;
Assert.AreEqual(47, hits.Length, "reader did not see changes after writer was closed");
ir.Dispose();
reader.Dispose();
dir.Dispose();
}
public virtual void TestCommitUserData()
{
Directory dir = NewDirectory();
IndexWriter w = new IndexWriter(dir, (IndexWriterConfig)NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())).SetMaxBufferedDocs(2));
for (int j = 0; j < 17; j++)
{
TestIndexWriter.AddDoc(w);
}
w.Dispose();
DirectoryReader r = DirectoryReader.Open(dir);
// commit(Map) never called for this index
Assert.AreEqual(0, r.IndexCommit.UserData.Count);
r.Dispose();
w = new IndexWriter(dir, (IndexWriterConfig)NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())).SetMaxBufferedDocs(2));
for (int j = 0; j < 17; j++)
{
TestIndexWriter.AddDoc(w);
}
IDictionary <string, string> data = new Dictionary <string, string>();
data["label"] = "test1";
w.CommitData = data;
w.Dispose();
r = DirectoryReader.Open(dir);
Assert.AreEqual("test1", r.IndexCommit.UserData["label"]);
r.Dispose();
w = new IndexWriter(dir, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())));
w.ForceMerge(1);
w.Dispose();
dir.Dispose();
}
public virtual void TestPrepareCommitRollback()
{
Directory dir = NewDirectory();
if (dir is MockDirectoryWrapper)
{
((MockDirectoryWrapper)dir).PreventDoubleWrite = false;
}
IndexWriter writer = new IndexWriter(dir, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())).SetMaxBufferedDocs(2).SetMergePolicy(NewLogMergePolicy(5)));
writer.Commit();
for (int i = 0; i < 23; i++)
{
TestIndexWriter.AddDoc(writer);
}
DirectoryReader reader = DirectoryReader.Open(dir);
Assert.AreEqual(0, reader.NumDocs);
writer.PrepareCommit();
IndexReader reader2 = DirectoryReader.Open(dir);
Assert.AreEqual(0, reader2.NumDocs);
writer.Rollback();
IndexReader reader3 = DirectoryReader.OpenIfChanged(reader);
Assert.IsNull(reader3);
Assert.AreEqual(0, reader.NumDocs);
Assert.AreEqual(0, reader2.NumDocs);
reader.Dispose();
reader2.Dispose();
writer = new IndexWriter(dir, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())));
for (int i = 0; i < 17; i++)
{
TestIndexWriter.AddDoc(writer);
}
reader = DirectoryReader.Open(dir);
Assert.AreEqual(0, reader.NumDocs);
reader.Dispose();
writer.PrepareCommit();
reader = DirectoryReader.Open(dir);
Assert.AreEqual(0, reader.NumDocs);
reader.Dispose();
writer.Commit();
reader = DirectoryReader.Open(dir);
Assert.AreEqual(17, reader.NumDocs);
reader.Dispose();
writer.Dispose();
dir.Dispose();
}
public virtual void TestCommitOnCloseAbort()
{
Directory dir = NewDirectory();
IndexWriter writer = new IndexWriter(dir, (IndexWriterConfig)NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())).SetMaxBufferedDocs(10));
for (int i = 0; i < 14; i++)
{
TestIndexWriter.AddDoc(writer);
}
writer.Dispose();
Term searchTerm = new Term("content", "aaa");
IndexReader reader = DirectoryReader.Open(dir);
IndexSearcher searcher = NewSearcher(reader);
ScoreDoc[] hits = searcher.Search(new TermQuery(searchTerm), null, 1000).ScoreDocs;
Assert.AreEqual(14, hits.Length, "first number of hits");
reader.Dispose();
writer = new IndexWriter(dir, (IndexWriterConfig)NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())).SetOpenMode(OpenMode_e.APPEND).SetMaxBufferedDocs(10));
for (int j = 0; j < 17; j++)
{
TestIndexWriter.AddDoc(writer);
}
// Delete all docs:
writer.DeleteDocuments(searchTerm);
reader = DirectoryReader.Open(dir);
searcher = NewSearcher(reader);
hits = searcher.Search(new TermQuery(searchTerm), null, 1000).ScoreDocs;
Assert.AreEqual(14, hits.Length, "reader incorrectly sees changes from writer");
reader.Dispose();
// Now, close the writer:
writer.Rollback();
TestIndexWriter.AssertNoUnreferencedFiles(dir, "unreferenced files remain after rollback()");
reader = DirectoryReader.Open(dir);
searcher = NewSearcher(reader);
hits = searcher.Search(new TermQuery(searchTerm), null, 1000).ScoreDocs;
Assert.AreEqual(14, hits.Length, "saw changes after writer.abort");
reader.Dispose();
// Now make sure we can re-open the index, add docs,
// and all is good:
writer = new IndexWriter(dir, (IndexWriterConfig)NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())).SetOpenMode(OpenMode_e.APPEND).SetMaxBufferedDocs(10));
// On abort, writer in fact may write to the same
// segments_N file:
if (dir is MockDirectoryWrapper)
{
((MockDirectoryWrapper)dir).PreventDoubleWrite = false;
}
for (int i = 0; i < 12; i++)
{
for (int j = 0; j < 17; j++)
{
TestIndexWriter.AddDoc(writer);
}
IndexReader r = DirectoryReader.Open(dir);
searcher = NewSearcher(r);
hits = searcher.Search(new TermQuery(searchTerm), null, 1000).ScoreDocs;
Assert.AreEqual(14, hits.Length, "reader incorrectly sees changes from writer");
r.Dispose();
}
writer.Dispose();
IndexReader ir = DirectoryReader.Open(dir);
searcher = NewSearcher(ir);
hits = searcher.Search(new TermQuery(searchTerm), null, 1000).ScoreDocs;
Assert.AreEqual(218, hits.Length, "didn't see changes after close");
ir.Dispose();
dir.Dispose();
}