Example #1
0
 /// <summary>
 /// Create a new <see cref="MergePolicy"/> that sorts documents with the given <paramref name="sort"/>.
 /// </summary>
 public SortingMergePolicy(MergePolicy @in, Sort sort)
 {
     this.@in    = @in;
     this.sorter = new Sorter(sort);
     this.sort   = sort;
 }
Example #2
0
        public void Test()
        {
            RandomIndexWriter writer;
            DirectoryReader   indexReader;
            int numParents        = AtLeast(200);
            IndexWriterConfig cfg = NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random()));

            cfg.SetMergePolicy(NewLogMergePolicy());
            using (writer = new RandomIndexWriter(Random(), NewDirectory(), cfg))
            {
                Document parentDoc = new Document();
                NumericDocValuesField parentVal = new NumericDocValuesField("parent_val", 0L);
                parentDoc.Add(parentVal);
                StringField parent = new StringField("parent", "true", Field.Store.YES);
                parentDoc.Add(parent);
                for (int i = 0; i < numParents; ++i)
                {
                    List <Document> documents   = new List <Document>();
                    int             numChildren = Random().nextInt(10);
                    for (int j = 0; j < numChildren; ++j)
                    {
                        Document childDoc = new Document();
                        childDoc.Add(new NumericDocValuesField("child_val", Random().nextInt(5)));
                        documents.Add(childDoc);
                    }
                    parentVal.SetInt64Value(Random().nextInt(50));
                    documents.Add(parentDoc);
                    writer.AddDocuments(documents);
                }
                writer.ForceMerge(1);
                indexReader = writer.Reader;
            }

            AtomicReader     reader        = GetOnlySegmentReader(indexReader);
            Filter           parentsFilter = new FixedBitSetCachingWrapperFilter(new QueryWrapperFilter(new TermQuery(new Term("parent", "true"))));
            FixedBitSet      parentBits    = (FixedBitSet)parentsFilter.GetDocIdSet(reader.AtomicContext, null);
            NumericDocValues parentValues  = reader.GetNumericDocValues("parent_val");

            NumericDocValues childValues = reader.GetNumericDocValues("child_val");

            Sort parentSort = new Sort(new SortField("parent_val", SortFieldType.INT64));
            Sort childSort  = new Sort(new SortField("child_val", SortFieldType.INT64));

            Sort   sort   = new Sort(new SortField("custom", new BlockJoinComparerSource(parentsFilter, parentSort, childSort)));
            Sorter sorter = new Sorter(sort);

            Sorter.DocMap docMap = sorter.Sort(reader);
            assertEquals(reader.MaxDoc, docMap.Count);

            int[] children       = new int[1];
            int   numChildren2   = 0;
            int   previousParent = -1;

            for (int i = 0; i < docMap.Count; ++i)
            {
                int oldID = docMap.NewToOld(i);
                if (parentBits.Get(oldID))
                {
                    // check that we have the right children
                    for (int j = 0; j < numChildren2; ++j)
                    {
                        assertEquals(oldID, parentBits.NextSetBit(children[j]));
                    }
                    // check that children are sorted
                    for (int j = 1; j < numChildren2; ++j)
                    {
                        int doc1 = children[j - 1];
                        int doc2 = children[j];
                        if (childValues.Get(doc1) == childValues.Get(doc2))
                        {
                            assertTrue(doc1 < doc2); // sort is stable
                        }
                        else
                        {
                            assertTrue(childValues.Get(doc1) < childValues.Get(doc2));
                        }
                    }
                    // check that parents are sorted
                    if (previousParent != -1)
                    {
                        if (parentValues.Get(previousParent) == parentValues.Get(oldID))
                        {
                            assertTrue(previousParent < oldID);
                        }
                        else
                        {
                            assertTrue(parentValues.Get(previousParent) < parentValues.Get(oldID));
                        }
                    }
                    // reset
                    previousParent = oldID;
                    numChildren2   = 0;
                }
                else
                {
                    children = ArrayUtil.Grow(children, numChildren2 + 1);
                    children[numChildren2++] = oldID;
                }
            }
            indexReader.Dispose();
            writer.w.Directory.Dispose();
        }
Example #3
0
 public DocComparatorAnonymousInnerClassHelper(Sorter outerInstance, int[] reverseMul, FieldComparator[] comparators)
 {
     this.outerInstance = outerInstance;
     this.reverseMul    = reverseMul;
     this.comparators   = comparators;
 }