/// <summary> /// Processes the first last query. /// </summary> /// <param name="message">The message.</param> /// <param name="messageContext">The message context.</param> private void ProcessFirstLastQuery(RelayMessage message, MessageContext messageContext) { FirstLastQueryResult firstLastQueryResult = FirstLastQueryProcessor.Process(message.GetQueryObject <FirstLastQuery>(), messageContext, storeContext); bool compressOption = storeContext.GetCompressOption(message.TypeId); message.Payload = new RelayPayload(message.TypeId, message.Id, Serializer.Serialize(firstLastQueryResult, compressOption), compressOption); }
/// <summary> /// Processes the specified first last query. /// </summary> /// <param name="firstLastQuery">The first last query.</param> /// <param name="messageContext">The message context.</param> /// <param name="storeContext">The store context.</param> /// <returns>FirstLastQueryResult</returns> internal static FirstLastQueryResult Process(FirstLastQuery firstLastQuery, MessageContext messageContext, IndexStoreContext storeContext) { FirstLastQueryResult firstLastQueryResult; List <ResultItem> firstPageResultItemList = null; List <ResultItem> lastPageResultItemList = null; bool indexExists = false; int indexSize = -1; int virtualCount = -1; byte[] metadata = null; MetadataPropertyCollection metadataPropertyCollection = null; try { IndexTypeMapping indexTypeMapping = storeContext.StorageConfiguration.CacheIndexV3StorageConfig.IndexTypeMappingCollection[messageContext.TypeId]; #region Validate Query ValidateQuery(indexTypeMapping, firstLastQuery); #endregion int maxItemsPerIndex = ((firstLastQuery.FirstPageSize > 0) && (firstLastQuery.LastPageSize < 1)) ? firstLastQuery.FirstPageSize : int.MaxValue; Index targetIndexInfo = indexTypeMapping.IndexCollection[firstLastQuery.TargetIndexName]; int indexCap = targetIndexInfo.MaxIndexSize; #region Prepare Result #region Extract index and apply criteria if (indexTypeMapping.MetadataStoredSeperately) { IndexServerUtils.GetMetadataStoredSeperately(indexTypeMapping, messageContext.TypeId, messageContext.PrimaryId, firstLastQuery.IndexId, storeContext, out metadata, out metadataPropertyCollection); } CacheIndexInternal targetIndex = IndexServerUtils.GetCacheIndexInternal(storeContext, messageContext.TypeId, messageContext.PrimaryId, firstLastQuery.IndexId, targetIndexInfo.ExtendedIdSuffix, firstLastQuery.TargetIndexName, maxItemsPerIndex, firstLastQuery.Filter, true, firstLastQuery.IndexCondition, false, false, targetIndexInfo.PrimarySortInfo, targetIndexInfo.LocalIdentityTagList, targetIndexInfo.StringHashCodeDictionary, null, targetIndexInfo.IsMetadataPropertyCollection, metadataPropertyCollection, firstLastQuery.DomainSpecificProcessingType, storeContext.DomainSpecificConfig, null, null, false); #endregion if (targetIndex != null) { indexSize = targetIndex.OutDeserializationContext.TotalCount; virtualCount = targetIndex.VirtualCount; indexExists = true; #region Dynamic tag sort if (firstLastQuery.TagSort != null) { targetIndex.Sort(firstLastQuery.TagSort); } #endregion // update perf counters PerformanceCounters.Instance.SetCounterValue( PerformanceCounterEnum.NumOfItemsInIndexPerFirstLastQuery, messageContext.TypeId, indexSize); PerformanceCounters.Instance.SetCounterValue( PerformanceCounterEnum.NumOfItemsReadPerFirstLastQuery, messageContext.TypeId, targetIndex.OutDeserializationContext.ReadItemCount); #region Populate resultLists if (firstLastQuery.FirstPageSize + firstLastQuery.LastPageSize <= targetIndex.Count) { firstPageResultItemList = CacheIndexInternalAdapter.GetResultItemList(targetIndex, 1, firstLastQuery.FirstPageSize); lastPageResultItemList = CacheIndexInternalAdapter.GetResultItemList(targetIndex, targetIndex.Count - firstLastQuery.LastPageSize + 1, firstLastQuery.LastPageSize); } else { //Populate everything in firstPageResultItemList firstPageResultItemList = CacheIndexInternalAdapter.GetResultItemList(targetIndex, 1, targetIndex.Count); } #endregion #region Get data if (!firstLastQuery.ExcludeData) { //First Page if (firstPageResultItemList != null) { DataTierUtil.GetData(firstPageResultItemList, null, storeContext, messageContext, indexTypeMapping.FullDataIdFieldList, firstLastQuery.FullDataIdInfo); } //Last Page if (lastPageResultItemList != null) { DataTierUtil.GetData(lastPageResultItemList, null, storeContext, messageContext, indexTypeMapping.FullDataIdFieldList, firstLastQuery.FullDataIdInfo); } } #endregion #region Get metadata if (firstLastQuery.GetMetadata && !indexTypeMapping.MetadataStoredSeperately) { IndexServerUtils.GetMetadataStoredWithIndex(indexTypeMapping, new List <CacheIndexInternal>(1) { targetIndex }, out metadata, out metadataPropertyCollection); } #endregion } #endregion firstLastQueryResult = new FirstLastQueryResult(indexExists, indexSize, metadata, metadataPropertyCollection, firstPageResultItemList, lastPageResultItemList, virtualCount, indexCap, null); } catch (Exception ex) { firstLastQueryResult = new FirstLastQueryResult(false, -1, null, null, null, null, -1, 0, ex.Message); LoggingUtil.Log.ErrorFormat("TypeID {0} -- Error processing FirstLastQuery : {1}", messageContext.TypeId, ex); } return(firstLastQueryResult); }