public virtual FacetIterator Iterator()
 {
     if (_predefinedRanges != null)
     {
         BigSegmentedArray rangeCounts = new LazyBigIntArray(_predefinedRangeIndexes.Length);
         for (int k = 0; k < _predefinedRangeIndexes.Length; ++k)
         {
             int count = 0;
             int idx   = _predefinedRangeIndexes[k][0];
             int end   = _predefinedRangeIndexes[k][1];
             while (idx <= end)
             {
                 count += _count.Get(idx++);
             }
             rangeCounts.Add(k, rangeCounts.Get(k) + count);
         }
         return(new DefaultFacetIterator(_predefinedRanges, rangeCounts, rangeCounts.Size(), true));
     }
     return(null);
 }
        public virtual FacetIterator Iterator()
        {
            // each range is of the form <lat, lon, radius>
            LazyBigIntArray rangeCounts = new LazyBigIntArray(_latPredefinedRangeIndexes.Length);

            for (int i = 0; i < _latCount.Length; ++i)
            {
                if (_latCount[i] > 0)
                {
                    for (int k = 0; k < _latPredefinedRangeIndexes.Length; ++k)
                    {
                        if (i >= _latPredefinedRangeIndexes[k][0] && i <= _latPredefinedRangeIndexes[k][1])
                        {
                            rangeCounts.Add(k, rangeCounts.Get(k) + _latCount[i]);
                        }
                    }
                }
            }
            return(new DefaultFacetIterator(_predefinedRanges, rangeCounts, rangeCounts.Size(), true));
        }
        public virtual List <BrowseFacet> GetFacetsNew()
        {
            if (_ospec != null)
            {
                if (_predefinedRangeIndexes != null)
                {
                    int minCount       = _ospec.MinHitCount;
                    int maxNumOfFacets = _ospec.MaxCount;
                    if (maxNumOfFacets <= 0 || maxNumOfFacets > _predefinedRangeIndexes.Length)
                    {
                        maxNumOfFacets = _predefinedRangeIndexes.Length;
                    }

                    BigSegmentedArray rangeCount = new LazyBigIntArray(_predefinedRangeIndexes.Length);

                    for (int k = 0; k < _predefinedRangeIndexes.Length; ++k)
                    {
                        int count = 0;
                        int idx   = _predefinedRangeIndexes[k][0];
                        int end   = _predefinedRangeIndexes[k][1];
                        while (idx <= end)
                        {
                            count += _count.Get(idx++);
                        }
                        rangeCount.Add(k, count);
                    }

                    List <BrowseFacet>      facetColl;
                    FacetSpec.FacetSortSpec sortspec = _ospec.OrderBy;
                    if (sortspec == FacetSpec.FacetSortSpec.OrderValueAsc)
                    {
                        facetColl = new List <BrowseFacet>(maxNumOfFacets);
                        for (int k = 0; k < _predefinedRangeIndexes.Length; ++k)
                        {
                            if (rangeCount.Get(k) >= minCount)
                            {
                                BrowseFacet choice = new BrowseFacet(_predefinedRanges.Get(k), rangeCount.Get(k));
                                facetColl.Add(choice);
                            }
                            if (facetColl.Count >= maxNumOfFacets)
                            {
                                break;
                            }
                        }
                    }
                    else //if (sortspec == FacetSortSpec.OrderHitsDesc)
                    {
                        IComparatorFactory comparatorFactory;
                        if (sortspec == FacetSpec.FacetSortSpec.OrderHitsDesc)
                        {
                            comparatorFactory = new FacetHitcountComparatorFactory();
                        }
                        else
                        {
                            comparatorFactory = _ospec.CustomComparatorFactory;
                        }

                        if (comparatorFactory == null)
                        {
                            throw new ArgumentException("facet comparator factory not specified");
                        }

                        IComparer <int> comparator = comparatorFactory.NewComparator(new RangeFacetCountCollectorFieldAccessor(_predefinedRanges), rangeCount);

                        int forbidden = -1;
                        IntBoundedPriorityQueue pq = new IntBoundedPriorityQueue(comparator, maxNumOfFacets, forbidden);
                        for (int i = 0; i < _predefinedRangeIndexes.Length; ++i)
                        {
                            if (rangeCount.Get(i) >= minCount)
                            {
                                pq.Offer(i);
                            }
                        }

                        int val;
                        facetColl = new List <BrowseFacet>();
                        while ((val = pq.Poll()) != forbidden)
                        {
                            BrowseFacet facet = new BrowseFacet(_predefinedRanges.ElementAt(val), rangeCount.Get(val));
                            facetColl.Insert(0, facet);
                        }
                    }
                    return(facetColl);
                }
                else
                {
                    return(FacetCountCollector_Fields.EMPTY_FACET_LIST);
                }
            }
            else
            {
                return(FacetCountCollector_Fields.EMPTY_FACET_LIST);
            }
        }