QACExperimenter.Approaches.BaseApproach.CreateAutoCompletionList C# (CSharp) Méthode

        public virtual AutoCompletionList CreateAutoCompletionList(IEnumerable<BaseIndexEntry> allPrefixEntries, int defaultMinCutOff = 1)
        {
            // Min query log frequency to allow (heuristic optimisation)
            int minCutOff = defaultMinCutOff; // Absolute min cut-off - now 1, rather than 2

            if (allPrefixEntries.Count() > 500)
                minCutOff = 4;
            if (allPrefixEntries.Count() > 1000)
                minCutOff = 5;
            if (allPrefixEntries.Count() > 3000)
                minCutOff = 6;
            if (allPrefixEntries.Count() > 6000)
                minCutOff = 7;
            if (allPrefixEntries.Count() > 10000)
                minCutOff = 8;
            if (allPrefixEntries.Count() > 15000)
                minCutOff = 9;
            if (allPrefixEntries.Count() > 20000)
                minCutOff = 10;
            if (allPrefixEntries.Count() > 26000)
                minCutOff = 11;

            object listLock = new object();
            List<AutoCompletion> autoCompletions = new List<AutoCompletion>();

            ParallelOptions po = new ParallelOptions();
            po.MaxDegreeOfParallelism = 4;

            // Make parallel
            Parallel.ForEach(allPrefixEntries, po, indexEntry =>
            {
                if (indexEntry.QueryLogFrequency > minCutOff)
                {
                    AutoCompletion ac = new AutoCompletion(indexEntry.Query);
                    ac.RankingWeight = indexEntry.RankingWeight;
                    ac.IsWikiWeighted = indexEntry.IsWikiWeighted;

                    lock (listLock)
                        autoCompletions.Add(ac);
                }
            });

            return new AutoCompletionList(autoCompletions);
        }