Lucene.Net.Util.FieldCacheSanityChecker.Check C# (CSharp) Method

        public Insanity[] Check(params FieldCache.CacheEntry[] cacheEntries)
        {
            if (null == cacheEntries || 0 == cacheEntries.Length)
            {
                return new Insanity[0];
            }

            if (EstimateRam)
            {
                for (int i = 0; i < cacheEntries.Length; i++)
                {
                    cacheEntries[i].EstimateSize();
                }
            }

            // the indirect mapping lets MapOfSet dedup identical valIds for us
            // maps the (valId) identityhashCode of cache values to
            // sets of CacheEntry instances
            MapOfSets<int, FieldCache.CacheEntry> valIdToItems = new MapOfSets<int, FieldCache.CacheEntry>(new Dictionary<int, HashSet<FieldCache.CacheEntry>>(17));
            // maps ReaderField keys to Sets of ValueIds
            MapOfSets<ReaderField, int> readerFieldToValIds = new MapOfSets<ReaderField, int>(new Dictionary<ReaderField, HashSet<int>>(17));

            // any keys that we know result in more then one valId
            ISet<ReaderField> valMismatchKeys = new HashSet<ReaderField>();

            // iterate over all the cacheEntries to get the mappings we'll need
            for (int i = 0; i < cacheEntries.Length; i++)
            {
                FieldCache.CacheEntry item = cacheEntries[i];
                object val = item.Value;

                // It's OK to have dup entries, where one is eg
                // float[] and the other is the Bits (from
                // getDocWithField())
                if (val is Bits)
                {
                    continue;
                }

                if (val is Lucene.Net.Search.FieldCache.CreationPlaceholder)
                {
                    continue;
                }

                ReaderField rf = new ReaderField(item.ReaderKey, item.FieldName);

                int valId = val.GetHashCode();

                // indirect mapping, so the MapOfSet will dedup identical valIds for us
                valIdToItems.Put(valId, item);
                if (1 < readerFieldToValIds.Put(rf, valId))
                {
                    valMismatchKeys.Add(rf);
                }
            }

            List<Insanity> insanity = new List<Insanity>(valMismatchKeys.Count * 3);

            insanity.AddRange(CheckValueMismatch(valIdToItems, readerFieldToValIds, valMismatchKeys));
            insanity.AddRange(CheckSubreaders(valIdToItems, readerFieldToValIds));

            return insanity.ToArray();
        }

        /// <summary>
        /// Quick and dirty convenience method that instantiates an instance with
        /// "good defaults" and uses it to test the CacheEntrys </summary>
        /// <seealso cref= #check </seealso>
        public static Insanity[] CheckSanity(params FieldCache.CacheEntry[] cacheEntries)
        {
            FieldCacheSanityChecker sanityChecker = new FieldCacheSanityChecker();

            sanityChecker.RamUsageEstimator = true;
            return(sanityChecker.Check(cacheEntries));
        }