public virtual void TestOpenIfChangedNoChangesButSegmentMerges()
{
// test openIfChanged() when the taxonomy hasn't really changed, but segments
// were merged. The NRT reader will be reopened, and ParentArray used to assert
// that the new reader contains more ordinals than were given from the old
// TaxReader version
Directory dir = NewDirectory();
// hold onto IW to forceMerge
// note how we don't close it, since DTW will close it.
var iw = new IndexWriter(dir, new IndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random)).SetMergePolicy(new LogByteSizeMergePolicy()));
// LUCENENET: We need to set the index writer before the constructor of the base class is called
// because the DirectoryTaxonomyWriter class constructor is the consumer of the OpenIndexWriter method.
// The only option seems to be to set it statically before creating the instance.
DirectoryTaxonomyWriterAnonymousInnerClassHelper3.iw = iw;
DirectoryTaxonomyWriter writer = new DirectoryTaxonomyWriterAnonymousInnerClassHelper3(dir);
// add a category so that the following DTR open will cause a flush and
// a new segment will be created
writer.AddCategory(new FacetLabel("a"));
var reader = new DirectoryTaxonomyReader(writer);
Assert.AreEqual(2, reader.Count);
Assert.AreEqual(2, reader.ParallelTaxonomyArrays.Parents.Length);
// merge all the segments so that NRT reader thinks there's a change
iw.ForceMerge(1);
// now calling openIfChanged should trip on the wrong assert in ParetArray's ctor
var newtr = TaxonomyReader.OpenIfChanged(reader);
Assert.IsNotNull(newtr);
reader.Dispose();
reader = newtr;
Assert.AreEqual(2, reader.Count);
Assert.AreEqual(2, reader.ParallelTaxonomyArrays.Parents.Length);
reader.Dispose();
writer.Dispose();
dir.Dispose();
}
public virtual void TestOpenIfChangedNoChangesButSegmentMerges()
{
// test openIfChanged() when the taxonomy hasn't really changed, but segments
// were merged. The NRT reader will be reopened, and ParentArray used to assert
// that the new reader contains more ordinals than were given from the old
// TaxReader version
Directory dir = NewDirectory();
// hold onto IW to forceMerge
// note how we don't close it, since DTW will close it.
var iw = new IndexWriter(dir, new IndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())).SetMergePolicy(new LogByteSizeMergePolicy()));
DirectoryTaxonomyWriter writer = new DirectoryTaxonomyWriterAnonymousInnerClassHelper3(this, dir, iw);
// add a category so that the following DTR open will cause a flush and
// a new segment will be created
writer.AddCategory(new FacetLabel("a"));
var reader = new DirectoryTaxonomyReader(writer);
Assert.AreEqual(2, reader.Size);
Assert.AreEqual(2, reader.ParallelTaxonomyArrays.Parents().Length);
// merge all the segments so that NRT reader thinks there's a change
iw.ForceMerge(1);
// now calling openIfChanged should trip on the wrong assert in ParetArray's ctor
var newtr = TaxonomyReader.OpenIfChanged(reader);
Assert.NotNull(newtr);
reader.Dispose();
reader = newtr;
Assert.AreEqual(2, reader.Size);
Assert.AreEqual(2, reader.ParallelTaxonomyArrays.Parents().Length);
reader.Dispose();
writer.Dispose();
dir.Dispose();
}
