/// <summary>
        /// Processes the specified query.
        /// </summary>
        /// <param name="query">The query.</param>
        /// <param name="messageContext">The message context.</param>
        /// <param name="storeContext">The store context.</param>
        /// <returns>Query Result</returns>
        internal TQueryResult Process(BaseMultiIndexIdQuery <TQueryResult> query,
                                      MessageContext messageContext,
                                      IndexStoreContext storeContext)
        {
            TQueryResult      result;
            List <ResultItem> resultItemList = new List <ResultItem>();
            Dictionary <byte[], IndexHeader> indexIdIndexHeaderMapping = null;
            bool             isTagPrimarySort             = false;
            string           sortFieldName                = null;
            List <SortOrder> sortOrderList                = null;
            int              totalCount                   = 0;
            int              additionalAvailableItemCount = 0;
            GroupByResult    groupByResult                = null;
            StringBuilder    exceptionInfo                = new StringBuilder();
            int              indexCap         = 0;
            IndexTypeMapping indexTypeMapping =
                storeContext.StorageConfiguration.CacheIndexV3StorageConfig.IndexTypeMappingCollection[messageContext.TypeId];

            try
            {
                if (query.IndexIdList.Count > 0)
                {
                    #region Validate Query

                    ValidateQuery(indexTypeMapping, query, messageContext);

                    #endregion

                    #region Set sort vars

                    Index targetIndexInfo = indexTypeMapping.IndexCollection[query.TargetIndexName];
                    indexCap = targetIndexInfo.MaxIndexSize;

                    if (query.TagSort != null)
                    {
                        isTagPrimarySort = query.TagSort.IsTag;
                        sortFieldName    = query.TagSort.TagName;
                        sortOrderList    = new List <SortOrder>(1)
                        {
                            query.TagSort.SortOrder
                        };
                    }
                    else
                    {
                        isTagPrimarySort = targetIndexInfo.PrimarySortInfo.IsTag;
                        sortFieldName    = targetIndexInfo.PrimarySortInfo.FieldName;
                        sortOrderList    = targetIndexInfo.PrimarySortInfo.SortOrderList;
                    }
                    BaseComparer baseComparer = new BaseComparer(isTagPrimarySort, sortFieldName, sortOrderList);
                    groupByResult = new GroupByResult(baseComparer);
                    #endregion

                    #region Prepare ResultList

                    CacheIndexInternal targetIndex;
                    IndexIdParams      indexIdParam;
                    int    maxExtractCount;
                    byte[] metadata;
                    MetadataPropertyCollection metadataPropertyCollection;
                    Dictionary <KeyValuePair <byte[], string>, CacheIndexInternal> internalIndexDictionary = new Dictionary <KeyValuePair <byte[], string>, CacheIndexInternal>();

                    int maxMergeCount = query.MaxMergeCount;

                    IndexCondition queryIndexCondition = query.IndexCondition;

                    for (int i = 0; i < query.IndexIdList.Count; i++)
                    {
                        #region Extract index and apply criteria

                        indexIdParam    = query.GetParamsForIndexId(query.IndexIdList[i]);
                        maxExtractCount = ComputeMaxExtractCount(indexIdParam.MaxItems,
                                                                 query.GetAdditionalAvailableItemCount,
                                                                 indexIdParam.Filter,
                                                                 query.MaxMergeCount);

                        // Note: This should be changed later and just extracted once if it is also requested in GetIndexHeader
                        metadata = null;
                        metadataPropertyCollection = null;
                        if (indexTypeMapping.MetadataStoredSeperately)
                        {
                            IndexServerUtils.GetMetadataStoredSeperately(indexTypeMapping,
                                                                         messageContext.TypeId,
                                                                         messageContext.PrimaryId,
                                                                         query.IndexIdList[i],
                                                                         storeContext,
                                                                         out metadata,
                                                                         out metadataPropertyCollection);
                        }

                        targetIndex = IndexServerUtils.GetCacheIndexInternal(storeContext,
                                                                             messageContext.TypeId,
                                                                             (query.PrimaryIdList != null && i < query.PrimaryIdList.Count) ?
                                                                             query.PrimaryIdList[i] :
                                                                             IndexCacheUtils.GeneratePrimaryId(query.IndexIdList[i]),
                                                                             query.IndexIdList[i],
                                                                             targetIndexInfo.ExtendedIdSuffix,
                                                                             query.TargetIndexName,
                                                                             maxExtractCount,
                                                                             indexIdParam.Filter,
                                                                             true,
                                                                             queryIndexCondition,
                                                                             false,
                                                                             false,
                                                                             targetIndexInfo.PrimarySortInfo,
                                                                             targetIndexInfo.LocalIdentityTagList,
                                                                             targetIndexInfo.StringHashCodeDictionary,
                                                                             query.CapCondition,
                                                                             targetIndexInfo.IsMetadataPropertyCollection,
                                                                             metadataPropertyCollection,
                                                                             query.DomainSpecificProcessingType,
                                                                             storeContext.DomainSpecificConfig,
                                                                             null,
                                                                             query.GroupBy,
                                                                             false);

                        #endregion

                        if (targetIndex != null)
                        {
                            totalCount += targetIndex.OutDeserializationContext.TotalCount;
                            additionalAvailableItemCount += targetIndex.Count;
                            internalIndexDictionary.Add(new KeyValuePair <byte[], string>(query.IndexIdList[i], query.TargetIndexName),
                                                        targetIndex);

                            SetItemCounter(messageContext.TypeId, targetIndex.OutDeserializationContext);

                            #region Dynamic tag sort

                            if (query.TagSort != null)
                            {
                                targetIndex.Sort(query.TagSort);
                            }

                            #endregion

                            #region Get items from index and merge

                            if (query.GroupBy == null)
                            {
                                MergeAlgo.MergeItemLists(ref resultItemList,
                                                         CacheIndexInternalAdapter.GetResultItemList(targetIndex, 1, int.MaxValue),
                                                         query.MaxMergeCount,
                                                         baseComparer);
                            }
                            else
                            {
                                MergeAlgo.MergeGroupResult(ref groupByResult,
                                                           targetIndex.GroupByResult,
                                                           query.MaxMergeCount,
                                                           baseComparer);
                            }

                            if ((i != query.IndexIdList.Count - 1) && (resultItemList.Count == maxMergeCount))
                            {
                                AdjustIndexCondition(GetConditionBoundaryBytes(resultItemList, groupByResult, query.GroupBy, isTagPrimarySort, sortFieldName),
                                                     ref queryIndexCondition,
                                                     baseComparer);
                            }

                            #endregion
                        }
                    }

                    #endregion

                    #region Subset Processing

                    ProcessSubsets(query, ref resultItemList, ref groupByResult, baseComparer);

                    #endregion

                    #region Get Extra Tags for IndexIds in the list

                    //Note: Getting extra tags from GroupByResult not supported for now

                    if (query.TagsFromIndexes != null && query.TagsFromIndexes.Count != 0)
                    {
                        KeyValuePair <byte[] /*IndexId */, string /*IndexName*/> kvp;
                        CacheIndexInternal additionalCacheIndexInternal;

                        #region Form IndexId - PrimaryId Mapping

                        Dictionary <byte[] /*IndexId */, int /*PrimaryId*/> indexIdPrimaryIdMapping =
                            new Dictionary <byte[] /*IndexId */, int /*PrimaryId*/>(query.IndexIdList.Count, new ByteArrayEqualityComparer());
                        if (query.PrimaryIdList != null && query.PrimaryIdList.Count > 0)
                        {
                            //Form dictionary of IndexIdPrimaryIdMapping
                            for (int i = 0; i < query.IndexIdList.Count && i < query.PrimaryIdList.Count; i++)
                            {
                                indexIdPrimaryIdMapping.Add(query.IndexIdList[i], query.PrimaryIdList[i]);
                            }
                        }

                        #endregion

                        int indexPrimaryId;
                        foreach (ResultItem resultItem in resultItemList)
                        {
                            foreach (string indexName in query.TagsFromIndexes)
                            {
                                Index indexInfo = indexTypeMapping.IndexCollection[indexName];
                                kvp = new KeyValuePair <byte[], string>(resultItem.IndexId, indexName);
                                if (!internalIndexDictionary.ContainsKey(kvp))
                                {
                                    additionalCacheIndexInternal = IndexServerUtils.GetCacheIndexInternal(storeContext,
                                                                                                          messageContext.TypeId,
                                                                                                          indexIdPrimaryIdMapping.TryGetValue(resultItem.IndexId, out indexPrimaryId) ?
                                                                                                          indexPrimaryId :
                                                                                                          IndexCacheUtils.GeneratePrimaryId(resultItem.IndexId),
                                                                                                          resultItem.IndexId,
                                                                                                          indexInfo.ExtendedIdSuffix,
                                                                                                          indexName,
                                                                                                          0,
                                                                                                          null,
                                                                                                          true,
                                                                                                          null,
                                                                                                          false,
                                                                                                          false,
                                                                                                          indexInfo.PrimarySortInfo,
                                                                                                          indexInfo.LocalIdentityTagList,
                                                                                                          indexInfo.StringHashCodeDictionary,
                                                                                                          null,
                                                                                                          indexInfo.IsMetadataPropertyCollection,
                                                                                                          null,
                                                                                                          query.DomainSpecificProcessingType,
                                                                                                          storeContext.DomainSpecificConfig,
                                                                                                          null,
                                                                                                          null,
                                                                                                          false);

                                    if (additionalCacheIndexInternal != null)
                                    {
                                        SetItemCounter(messageContext.TypeId, additionalCacheIndexInternal.OutDeserializationContext);

                                        internalIndexDictionary.Add(kvp, additionalCacheIndexInternal);
                                        try
                                        {
                                            IndexServerUtils.GetTags(additionalCacheIndexInternal, resultItem, resultItem);
                                        }
                                        catch (Exception ex)
                                        {
                                            LoggingUtil.Log.Error(ex.ToString());
                                            exceptionInfo.Append(" | " + ex.Message);
                                        }
                                    }
                                }
                            }
                        }
                    }

                    #endregion

                    #region Get IndexHeader

                    if (query.GetIndexHeaderType == GetIndexHeaderType.AllIndexIds)
                    {
                        //Get IndexHeader for all IndexIds
                        indexIdIndexHeaderMapping = new Dictionary <byte[], IndexHeader>(new ByteArrayEqualityComparer());

                        for (int i = 0; i < query.IndexIdList.Count; i++)
                        {
                            byte[]             indexId = query.IndexIdList[i];
                            CacheIndexInternal targetIndexCacheIndexInternal;

                            if (!indexIdIndexHeaderMapping.ContainsKey(indexId) &&
                                internalIndexDictionary.TryGetValue(new KeyValuePair <byte[], string>(indexId, query.TargetIndexName), out targetIndexCacheIndexInternal))
                            {
                                indexIdIndexHeaderMapping.Add(indexId, GetIndexHeader(internalIndexDictionary,
                                                                                      targetIndexCacheIndexInternal,
                                                                                      indexId,
                                                                                      query,
                                                                                      indexTypeMapping,
                                                                                      messageContext.TypeId,
                                                                                      storeContext,
                                                                                      i));
                            }
                        }
                    }
                    else if (query.GetIndexHeaderType == GetIndexHeaderType.ResultItemsIndexIds)
                    {
                        //Get IndexHeader just for IndexIds present in the result
                        indexIdIndexHeaderMapping = new Dictionary <byte[], IndexHeader>(new ByteArrayEqualityComparer());

                        if (query.GroupBy == null)
                        {
                            for (int i = 0; i < resultItemList.Count; i++)
                            {
                                ResultItem resultItem = resultItemList[i];
                                if (!indexIdIndexHeaderMapping.ContainsKey(resultItem.IndexId))
                                {
                                    CacheIndexInternal targetIndexCacheIndexInternal;
                                    internalIndexDictionary.TryGetValue(new KeyValuePair <byte[], string>(resultItem.IndexId, query.TargetIndexName),
                                                                        out targetIndexCacheIndexInternal);
                                    indexIdIndexHeaderMapping.Add(resultItem.IndexId,
                                                                  GetIndexHeader(internalIndexDictionary,
                                                                                 targetIndexCacheIndexInternal,
                                                                                 resultItem.IndexId,
                                                                                 query,
                                                                                 indexTypeMapping,
                                                                                 messageContext.TypeId,
                                                                                 storeContext,
                                                                                 i));
                                }
                            }
                        }
                        else
                        {
                            foreach (ResultItemBag resultItemBag in groupByResult)
                            {
                                for (int i = 0; i < resultItemBag.Count; i++)
                                {
                                    ResultItem resultItem = resultItemBag[i];
                                    if (!indexIdIndexHeaderMapping.ContainsKey(resultItem.IndexId))
                                    {
                                        CacheIndexInternal targetIndexCacheIndexInternal;
                                        internalIndexDictionary.TryGetValue(new KeyValuePair <byte[], string>(resultItem.IndexId, query.TargetIndexName),
                                                                            out targetIndexCacheIndexInternal);
                                        indexIdIndexHeaderMapping.Add(resultItem.IndexId,
                                                                      GetIndexHeader(internalIndexDictionary,
                                                                                     targetIndexCacheIndexInternal,
                                                                                     resultItem.IndexId,
                                                                                     query,
                                                                                     indexTypeMapping,
                                                                                     messageContext.TypeId,
                                                                                     storeContext,
                                                                                     i));
                                    }
                                }
                            }
                        }
                    }

                    #endregion

                    #region Get data

                    if (!query.ExcludeData)
                    {
                        DataTierUtil.GetData(resultItemList,
                                             groupByResult,
                                             storeContext, messageContext,
                                             indexTypeMapping.FullDataIdFieldList,
                                             query.FullDataIdInfo);
                    }

                    #endregion
                }

                result = new TQueryResult
                {
                    ResultItemList            = resultItemList,
                    IndexIdIndexHeaderMapping = indexIdIndexHeaderMapping,
                    TotalCount = totalCount,
                    AdditionalAvailableItemCount = additionalAvailableItemCount,
                    IsTagPrimarySort             = isTagPrimarySort,
                    SortFieldName = sortFieldName,
                    SortOrderList = sortOrderList,
                    IndexCap      = indexCap,
                    GroupByResult = groupByResult,
                    ExceptionInfo = exceptionInfo.ToString()
                };

                #region Log Potentially Bad Queries

                if (indexTypeMapping.QueryOverrideSettings != null &&
                    indexTypeMapping.QueryOverrideSettings.MaxResultItemsThresholdLog > 0 &&
                    resultItemList != null &&
                    resultItemList.Count > indexTypeMapping.QueryOverrideSettings.MaxResultItemsThresholdLog)
                {
                    LoggingUtil.Log.ErrorFormat("Encountered potentially Bad Paged Query with Large Result Set of {0}.  AddressHistory: {1}.  Query Info: {2}",
                                                resultItemList.Count,
                                                IndexServerUtils.FormatAddressHistory(messageContext.AddressHistory),
                                                FormatQueryInfo(query));
                }

                LoggingUtil.Log.DebugFormat("QueryInfo: {0}, AddressHistory: {1}", FormatQueryInfo(query), IndexServerUtils.FormatAddressHistory(messageContext.AddressHistory));

                #endregion

                SetIndexIdListCounter(messageContext.TypeId, query);
            }
            catch (Exception ex)
            {
                exceptionInfo.Append(" | " + ex.Message);
                result = new TQueryResult
                {
                    ExceptionInfo = exceptionInfo.ToString()
                };
                LoggingUtil.Log.ErrorFormat("TypeId {0} -- Error processing PagedIndexQuery : {1}", messageContext.TypeId, ex);
            }
            return(result);
        }
Ejemplo n.º 2
0
        /// <summary>
        /// Processes the specified contains index query.
        /// </summary>
        /// <param name="containsIndexQuery">The contains index query.</param>
        /// <param name="messageContext">The message context.</param>
        /// <param name="storeContext">The store context.</param>
        /// <returns>ContainsIndexQueryResult</returns>
        internal static ContainsIndexQueryResult Process(ContainsIndexQuery containsIndexQuery, MessageContext messageContext, IndexStoreContext storeContext)
        {
            ContainsIndexQueryResult containsIndexQueryResult;
            MultiItemResult          multiItemResult = null;

            byte[] metadata = null;
            MetadataPropertyCollection metadataPropertyCollection = null;
            bool indexExists  = false;
            int  indexSize    = -1;
            int  virtualCount = -1;

            try
            {
                IndexTypeMapping indexTypeMapping =
                    storeContext.StorageConfiguration.CacheIndexV3StorageConfig.IndexTypeMappingCollection[messageContext.TypeId];

                #region Check TargetIndexName

                if (string.IsNullOrEmpty(containsIndexQuery.TargetIndexName))
                {
                    containsIndexQuery.TargetIndexName = IndexServerUtils.CheckQueryTargetIndexName(indexTypeMapping);
                }

                if (!indexTypeMapping.IndexCollection.Contains(containsIndexQuery.TargetIndexName))
                {
                    throw new Exception("Invalid TargetIndexName - " + containsIndexQuery.TargetIndexName);
                }

                #endregion

                Index targetIndexInfo = indexTypeMapping.IndexCollection[containsIndexQuery.TargetIndexName];
                int   indexCap        = targetIndexInfo.MaxIndexSize;
                List <CacheIndexInternal> internalCacheIndexList = new List <CacheIndexInternal>();

                #region Get TargetIndex

                CacheIndexInternal cacheIndexInternal = IndexServerUtils.GetCacheIndexInternal(storeContext,
                                                                                               messageContext.TypeId,
                                                                                               messageContext.PrimaryId,
                                                                                               containsIndexQuery.IndexId,
                                                                                               targetIndexInfo.ExtendedIdSuffix,
                                                                                               containsIndexQuery.TargetIndexName,
                                                                                               0,
                                                                                               null,
                                                                                               true,
                                                                                               null,
                                                                                               false,
                                                                                               false,
                                                                                               targetIndexInfo.PrimarySortInfo,
                                                                                               targetIndexInfo.LocalIdentityTagList,
                                                                                               targetIndexInfo.StringHashCodeDictionary,
                                                                                               null,
                                                                                               targetIndexInfo.IsMetadataPropertyCollection,
                                                                                               null,
                                                                                               containsIndexQuery.DomainSpecificProcessingType,
                                                                                               storeContext.DomainSpecificConfig,
                                                                                               null,
                                                                                               null,
                                                                                               false);

                #endregion

                if (cacheIndexInternal != null)
                {
                    internalCacheIndexList.Add(cacheIndexInternal);
                    indexExists  = true;
                    indexSize    = cacheIndexInternal.OutDeserializationContext.TotalCount;
                    virtualCount = cacheIndexInternal.VirtualCount;

                    // update the performance counter
                    PerformanceCounters.Instance.SetCounterValue(
                        PerformanceCounterEnum.NumOfItemsInIndexPerContainsIndexQuery,
                        messageContext.TypeId,
                        indexSize);

                    PerformanceCounters.Instance.SetCounterValue(
                        PerformanceCounterEnum.NumOfItemsReadPerContainsIndexQuery,
                        messageContext.TypeId,
                        cacheIndexInternal.OutDeserializationContext.ReadItemCount);

                    int           searchIndex;
                    IndexDataItem indexDataItem;

                    foreach (IndexItem queryIndexItem in containsIndexQuery.IndexItemList)
                    {
                        #region Search item in index

                        searchIndex = internalCacheIndexList[0].Search(queryIndexItem);

                        #endregion

                        if (searchIndex > -1)
                        {
                            if (multiItemResult == null)
                            {
                                multiItemResult = new MultiItemResult(containsIndexQuery.IndexId);
                            }
                            indexDataItem = new IndexDataItem(InternalItemAdapter.ConvertToIndexItem(internalCacheIndexList[0].GetItem(searchIndex),
                                                                                                     internalCacheIndexList[0].InDeserializationContext));

                            #region Get extra tags

                            if (containsIndexQuery.TagsFromIndexes != null && containsIndexQuery.TagsFromIndexes.Count != 0)
                            {
                                foreach (string indexName in containsIndexQuery.TagsFromIndexes)
                                {
                                    Index indexInfo = indexTypeMapping.IndexCollection[indexName];

                                    CacheIndexInternal indexInternal =
                                        IndexServerUtils.GetCacheIndexInternal(storeContext,
                                                                               messageContext.TypeId,
                                                                               messageContext.PrimaryId,
                                                                               containsIndexQuery.IndexId,
                                                                               indexInfo.ExtendedIdSuffix,
                                                                               indexName,
                                                                               0,
                                                                               null,
                                                                               true,
                                                                               null,
                                                                               false,
                                                                               false,
                                                                               indexInfo.PrimarySortInfo,
                                                                               indexInfo.LocalIdentityTagList,
                                                                               indexInfo.StringHashCodeDictionary,
                                                                               null,
                                                                               indexInfo.IsMetadataPropertyCollection,
                                                                               null,
                                                                               containsIndexQuery.DomainSpecificProcessingType,
                                                                               storeContext.DomainSpecificConfig,
                                                                               null,
                                                                               null,
                                                                               false);

                                    if (indexInternal != null)
                                    {
                                        // update the performance counter
                                        PerformanceCounters.Instance.SetCounterValue(
                                            PerformanceCounterEnum.NumOfItemsInIndexPerContainsIndexQuery,
                                            messageContext.TypeId,
                                            indexInternal.OutDeserializationContext.TotalCount);

                                        PerformanceCounters.Instance.SetCounterValue(
                                            PerformanceCounterEnum.NumOfItemsReadPerContainsIndexQuery,
                                            messageContext.TypeId,
                                            indexInternal.OutDeserializationContext.ReadItemCount);

                                        internalCacheIndexList.Add(indexInternal);

                                        IndexServerUtils.GetTags(indexInternal, queryIndexItem, indexDataItem);
                                    }
                                }
                            }

                            #endregion

                            multiItemResult.Add(indexDataItem);
                        }
                    }

                    #region Get data

                    if (!containsIndexQuery.ExcludeData && multiItemResult != null)
                    {
                        byte[] extendedId;
                        List <RelayMessage> dataStoreMessages = new List <RelayMessage>(multiItemResult.Count);
                        short relatedTypeId;
                        if (containsIndexQuery.FullDataIdInfo != null && containsIndexQuery.FullDataIdInfo.RelatedTypeName != null)
                        {
                            if (!storeContext.TryGetTypeId(containsIndexQuery.FullDataIdInfo.RelatedTypeName, out relatedTypeId))
                            {
                                LoggingUtil.Log.ErrorFormat("Invalid RelatedCacheTypeName - {0}", containsIndexQuery.FullDataIdInfo.RelatedTypeName);
                                throw new Exception("Invalid RelatedTypeId for TypeId - " + containsIndexQuery.FullDataIdInfo.RelatedTypeName);
                            }
                        }
                        else if (!storeContext.TryGetRelatedIndexTypeId(messageContext.TypeId, out relatedTypeId))
                        {
                            LoggingUtil.Log.ErrorFormat("Invalid RelatedTypeId for TypeId - {0}", messageContext.TypeId);
                            throw new Exception("Invalid RelatedTypeId for TypeId - " + messageContext.TypeId);
                        }

                        foreach (IndexDataItem resultItem in multiItemResult)
                        {
                            extendedId = DataTierUtil.GetFullDataId(containsIndexQuery.IndexId,
                                                                    resultItem,
                                                                    containsIndexQuery.FullDataIdInfo != null && containsIndexQuery.FullDataIdInfo.RelatedTypeName != null ?
                                                                    containsIndexQuery.FullDataIdInfo.FullDataIdFieldList :
                                                                    indexTypeMapping.FullDataIdFieldList);
                            dataStoreMessages.Add(new RelayMessage(relatedTypeId, IndexCacheUtils.GeneratePrimaryId(extendedId), extendedId, MessageType.Get));
                        }

                        storeContext.ForwarderComponent.HandleMessages(dataStoreMessages);

                        int i = 0;
                        foreach (IndexDataItem resultItem in multiItemResult)
                        {
                            if (dataStoreMessages[i].Payload != null)
                            {
                                resultItem.Data = dataStoreMessages[i].Payload.ByteArray;
                            }
                            i++;
                        }
                    }

                    #endregion

                    #region Get metadata

                    if (containsIndexQuery.GetMetadata)
                    {
                        if (indexTypeMapping.MetadataStoredSeperately)
                        {
                            IndexServerUtils.GetMetadataStoredSeperately(indexTypeMapping,
                                                                         messageContext.TypeId,
                                                                         messageContext.PrimaryId,
                                                                         containsIndexQuery.IndexId,
                                                                         storeContext,
                                                                         out metadata,
                                                                         out metadataPropertyCollection);
                        }
                        else
                        {
                            IndexServerUtils.GetMetadataStoredWithIndex(indexTypeMapping,
                                                                        internalCacheIndexList,
                                                                        out metadata,
                                                                        out metadataPropertyCollection);
                        }
                    }

                    #endregion
                }
                containsIndexQueryResult = new ContainsIndexQueryResult(multiItemResult,
                                                                        metadata,
                                                                        metadataPropertyCollection,
                                                                        indexSize,
                                                                        indexExists,
                                                                        virtualCount,
                                                                        indexCap,
                                                                        null);
            }
            catch (Exception ex)
            {
                containsIndexQueryResult = new ContainsIndexQueryResult(null, null, null, -1, false, -1, 0, ex.Message);
                LoggingUtil.Log.ErrorFormat("TypeId {0} -- Error processing ContainsIndexQuery : {1}", messageContext.TypeId, ex);
            }
            return(containsIndexQueryResult);
        }