public override void BeforeClass()
{
base.BeforeClass();
// NOTE: turn off compound file, this test will open some index files directly.
OldFormatImpersonationIsActive = true;
IndexWriterConfig config = NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random, MockTokenizer.KEYWORD, false)).SetUseCompoundFile(false);
TermIndexInterval = config.TermIndexInterval;
IndexDivisor = TestUtil.NextInt32(Random, 1, 10);
NUMBER_OF_DOCUMENTS = AtLeast(100);
NUMBER_OF_FIELDS = AtLeast(Math.Max(10, 3 * TermIndexInterval * IndexDivisor / NUMBER_OF_DOCUMENTS));
Directory = NewDirectory();
config.SetCodec(new PreFlexRWCodec());
LogMergePolicy mp = NewLogMergePolicy();
// NOTE: turn off compound file, this test will open some index files directly.
mp.NoCFSRatio = 0.0;
config.SetMergePolicy(mp);
Populate(Directory, config);
DirectoryReader r0 = IndexReader.Open(Directory);
SegmentReader r = LuceneTestCase.GetOnlySegmentReader(r0);
string segment = r.SegmentName;
r.Dispose();
FieldInfosReader infosReader = (new PreFlexRWCodec()).FieldInfosFormat.FieldInfosReader;
FieldInfos fieldInfos = infosReader.Read(Directory, segment, "", IOContext.READ_ONCE);
string segmentFileName = IndexFileNames.SegmentFileName(segment, "", Lucene3xPostingsFormat.TERMS_INDEX_EXTENSION);
long tiiFileLength = Directory.FileLength(segmentFileName);
IndexInput input = Directory.OpenInput(segmentFileName, NewIOContext(Random));
TermEnum = new SegmentTermEnum(Directory.OpenInput(IndexFileNames.SegmentFileName(segment, "", Lucene3xPostingsFormat.TERMS_EXTENSION), NewIOContext(Random)), fieldInfos, false);
int totalIndexInterval = TermEnum.indexInterval * IndexDivisor;
SegmentTermEnum indexEnum = new SegmentTermEnum(input, fieldInfos, true);
Index = new TermInfosReaderIndex(indexEnum, IndexDivisor, tiiFileLength, totalIndexInterval);
indexEnum.Dispose();
input.Dispose();
Reader = IndexReader.Open(Directory);
SampleTerms = Sample(Random, Reader, 1000);
}
private static IndexReader MakeEmptyIndex(Random random, int numDocs)
{
Debug.Assert(numDocs > 0);
Directory d = new MockDirectoryWrapper(random, new RAMDirectory());
IndexWriter w = new IndexWriter(d, new IndexWriterConfig(LuceneTestCase.TEST_VERSION_CURRENT, new MockAnalyzer(random)));
for (int i = 0; i < numDocs; i++)
{
w.AddDocument(new Document());
}
w.ForceMerge(1);
w.Commit();
w.Dispose();
DirectoryReader reader = DirectoryReader.Open(d);
return(new AllDeletedFilterReader(LuceneTestCase.GetOnlySegmentReader(reader)));
}