예제 #1
0
        private static bool SearchByTopic(IXSOFactory xsoFactory, IMailboxSession session, ICorePropertyBag persistPropertyBag, ConversationIndexTrackingEx indexTrackingEx, out IStorePropertyBag foundPropertyBag, out bool didConversationIdMatch, out bool didReferencesMatch, params PropertyDefinition[] propsToReturn)
        {
            foundPropertyBag       = null;
            didConversationIdMatch = false;
            didReferencesMatch     = false;
            Util.ThrowOnNullArgument(session, "session");
            Util.ThrowOnNullArgument(persistPropertyBag, "persistPropertyBag");
            Util.ThrowOnNullArgument(propsToReturn, "propsToReturn");
            ICollection <PropertyDefinition> properties = InternalSchema.Combine <PropertyDefinition>(propsToReturn, new PropertyDefinition[]
            {
                ItemSchema.ConversationTopicHash
            });
            string            incomingConversationTopic = persistPropertyBag.GetValueOrDefault <string>(ItemSchema.ConversationTopic);
            ConversationIndex conversationIndex;
            bool           isValidIncomingIndex   = ConversationIndex.TryCreate(persistPropertyBag.TryGetProperty(ItemSchema.ConversationIndex) as byte[], out conversationIndex);
            ConversationId incomingConversationId = isValidIncomingIndex ? ConversationId.Create(conversationIndex.Guid) : null;

            if (incomingConversationTopic == null)
            {
                return(false);
            }
            bool              didConversationIdMatchLocal   = false;
            bool              didReferencesMatchLocal       = false;
            int               incomingConversationTopicHash = (int)AllItemsFolderHelper.GetHashValue(incomingConversationTopic);
            Stopwatch         stopwatch        = Stopwatch.StartNew();
            IStorePropertyBag storePropertyBag = xsoFactory.RunQueryOnAllItemsFolder <IStorePropertyBag>(session, AllItemsFolderHelper.SupportedSortBy.ConversationTopicHash, incomingConversationTopicHash, null, delegate(QueryResult queryResult)
            {
                bool flag = queryResult.SeekToCondition(SeekReference.OriginBeginning, new ComparisonFilter(ComparisonOperator.Equal, ItemSchema.ConversationTopicHash, incomingConversationTopicHash));
                if (flag)
                {
                    IStorePropertyBag storePropertyBag2 = null;
                    for (int i = 0; i < 5; i++)
                    {
                        IStorePropertyBag[] propertyBags = queryResult.GetPropertyBags(1);
                        if (propertyBags.Length != 1)
                        {
                            break;
                        }
                        int?num = propertyBags[0].TryGetProperty(ItemSchema.ConversationTopicHash) as int?;
                        if (num == null || num.Value != incomingConversationTopicHash)
                        {
                            break;
                        }
                        string foundTopic = propertyBags[0].TryGetProperty(ItemSchema.ConversationTopic) as string;
                        if (ConversationIndex.CompareTopics(incomingConversationTopic, foundTopic))
                        {
                            if (storePropertyBag2 == null)
                            {
                                storePropertyBag2 = propertyBags[0];
                            }
                            ConversationIndex conversationIndex2;
                            bool flag2 = ConversationIndex.TryCreate(propertyBags[0].TryGetProperty(ItemSchema.ConversationIndex) as byte[], out conversationIndex2);
                            if (flag2)
                            {
                                if (isValidIncomingIndex)
                                {
                                    ConversationId conversationId = ConversationId.Create(conversationIndex2.Guid);
                                    if (conversationId.Equals(incomingConversationId))
                                    {
                                        didConversationIdMatchLocal = true;
                                        return(propertyBags[0]);
                                    }
                                }
                                else if (AggregationByItemClassReferencesSubjectProcessor.MatchMessageIdWithReferences(persistPropertyBag, propertyBags[0]))
                                {
                                    didReferencesMatchLocal = true;
                                    return(propertyBags[0]);
                                }
                            }
                        }
                        if (!queryResult.SeekToCondition(SeekReference.OriginCurrent, new ComparisonFilter(ComparisonOperator.Equal, ItemSchema.ConversationTopicHash, incomingConversationTopicHash)))
                        {
                            break;
                        }
                    }
                    if (storePropertyBag2 != null)
                    {
                        return(storePropertyBag2);
                    }
                }
                return(null);
            }, properties);

            stopwatch.Stop();
            if (indexTrackingEx != null)
            {
                indexTrackingEx.Trace("SBT", stopwatch.ElapsedMilliseconds.ToString());
            }
            if (storePropertyBag != null)
            {
                foundPropertyBag       = storePropertyBag;
                didConversationIdMatch = didConversationIdMatchLocal;
                didReferencesMatch     = didReferencesMatchLocal;
                return(true);
            }
            return(false);
        }
        public void OnPromotedMessageHandler(StoreDriverEventSource source, StoreDriverDeliveryEventArgs args)
        {
            ConversationsProcessingAgent.tracer.TraceDebug(0L, "Called ConversationsProcessingAgent.OnPromotedMessageHandler");
            if (args == null)
            {
                return;
            }
            StoreDriverDeliveryEventArgsImpl storeDriverDeliveryEventArgsImpl = (StoreDriverDeliveryEventArgsImpl)args;

            if (ConversationsProcessingAgent.ShouldSkipMessageProcessing(storeDriverDeliveryEventArgsImpl))
            {
                return;
            }
            if (storeDriverDeliveryEventArgsImpl.MailboxOwner == null)
            {
                return;
            }
            MailboxSession mailboxSession = storeDriverDeliveryEventArgsImpl.MailboxSession;

            if (mailboxSession.MailboxOwner.MailboxInfo.Location.ServerVersion <= 1937801369)
            {
                if (ConversationsProcessingAgent.tracer.IsTraceEnabled(TraceType.DebugTrace))
                {
                    ConversationsProcessingAgent.tracer.TraceDebug <string, string>((long)this.GetHashCode(), "Backend server version (0x{0}) is less than minimum required (0x{1})", mailboxSession.MailboxOwner.MailboxInfo.Location.ServerVersion.ToString("X"), 1937801369.ToString("X"));
                }
                return;
            }
            ConversationsProcessingAgent.tracer.TraceDebug((long)this.GetHashCode(), "Processing incoming message");
            Stopwatch stopwatch = Stopwatch.StartNew();

            try
            {
                if (storeDriverDeliveryEventArgsImpl.PropertiesForAllMessageCopies == null)
                {
                    storeDriverDeliveryEventArgsImpl.PropertiesForAllMessageCopies = new Dictionary <PropertyDefinition, object>();
                }
                ConversationIndexTrackingEx conversationIndexTrackingEx = ConversationIndexTrackingEx.Create();
                this.performanceContext = ConversationsProcessingAgent.conversationLatencyDetectionContextFactory.CreateContext("15.00.1497.012", "FIXUP", new IPerformanceDataProvider[0]);
                if (!this.isBodyTagCalculated)
                {
                    ConversationsProcessingAgent.tracer.TraceDebug((long)this.GetHashCode(), "Calculating body tag");
                    Stopwatch stopwatch2 = Stopwatch.StartNew();
                    if (storeDriverDeliveryEventArgsImpl.ReplayItem.IsRestricted)
                    {
                        if (!this.TryCalculateIrmBodyTag(storeDriverDeliveryEventArgsImpl))
                        {
                            this.bodyTag = null;
                        }
                    }
                    else if (PropertyError.IsPropertyNotFound(storeDriverDeliveryEventArgsImpl.ReplayItem.TryGetProperty(ItemSchema.BodyTag)))
                    {
                        this.bodyTag = storeDriverDeliveryEventArgsImpl.ReplayItem.Body.CalculateBodyTag(out this.latestMessageWordCount);
                    }
                    else
                    {
                        this.bodyTag = storeDriverDeliveryEventArgsImpl.ReplayItem.GetValueOrDefault <byte[]>(ItemSchema.BodyTag);
                        this.latestMessageWordCount = storeDriverDeliveryEventArgsImpl.ReplayItem.GetValueOrDefault <int>(MessageItemSchema.LatestMessageWordCount, int.MinValue);
                    }
                    stopwatch2.Stop();
                    conversationIndexTrackingEx.Trace("BT", stopwatch2.ElapsedMilliseconds.ToString());
                    this.isBodyTagCalculated = true;
                }
                if (this.bodyTag != null)
                {
                    storeDriverDeliveryEventArgsImpl.PropertiesForAllMessageCopies[ItemSchema.BodyTag] = this.bodyTag;
                    if (this.latestMessageWordCount >= 0)
                    {
                        storeDriverDeliveryEventArgsImpl.PropertiesForAllMessageCopies[MessageItemSchema.LatestMessageWordCount] = this.latestMessageWordCount;
                        storeDriverDeliveryEventArgsImpl.ReplayItem.SafeSetProperty(MessageItemSchema.LatestMessageWordCount, this.latestMessageWordCount);
                    }
                }
                if (this.forceAllAttachmentsHidden)
                {
                    storeDriverDeliveryEventArgsImpl.PropertiesForAllMessageCopies[MessageItemSchema.AllAttachmentsHidden] = true;
                }
                if (!ConversationIndex.CompareTopics(storeDriverDeliveryEventArgsImpl.ReplayItem.TryGetProperty(ItemSchema.ConversationTopic) as string, storeDriverDeliveryEventArgsImpl.ReplayItem.TryGetProperty(ItemSchema.NormalizedSubject) as string))
                {
                    storeDriverDeliveryEventArgsImpl.PropertiesForAllMessageCopies[ItemSchema.ConversationTopic] = ((storeDriverDeliveryEventArgsImpl.ReplayItem.TryGetProperty(ItemSchema.NormalizedSubject) as string) ?? string.Empty);
                }
                if (!storeDriverDeliveryEventArgsImpl.MessageClass.Equals("IPM.WorkingSet.Signal", StringComparison.InvariantCulture))
                {
                    ConversationAggregationResult conversationAggregationResult = new ConversationAggregationResult();
                    ConversationsProcessingAgent.tracer.TraceDebug((long)this.GetHashCode(), "Fixing up the conversation id");
                    try
                    {
                        IConversationAggregator conversationAggregator;
                        if (ConversationAggregatorFactory.TryInstantiateAggregatorForDelivery(mailboxSession, storeDriverDeliveryEventArgsImpl.MailboxOwner, conversationIndexTrackingEx, out conversationAggregator))
                        {
                            conversationAggregationResult = conversationAggregator.Aggregate(storeDriverDeliveryEventArgsImpl.ReplayItem.CoreItem);
                        }
                        else
                        {
                            ConversationsProcessingAgent.tracer.TraceError((long)this.GetHashCode(), "Not able to identify a valid conversationAggregator");
                            conversationAggregationResult.ConversationIndex = ConversationIndex.CreateNew();
                            conversationAggregationResult.Stage             = ConversationIndex.FixupStage.Error;
                        }
                    }
                    catch (ObjectNotFoundException arg)
                    {
                        ConversationsProcessingAgent.tracer.TraceError <ObjectNotFoundException>((long)this.GetHashCode(), "Exception - {0}", arg);
                        conversationAggregationResult.ConversationIndex = ConversationIndex.CreateNew();
                        conversationAggregationResult.Stage             = ConversationIndex.FixupStage.Error;
                    }
                    this.performanceContext.StopAndFinalizeCollection();
                    conversationIndexTrackingEx.Trace("FIXUP", this.performanceContext.Elapsed.TotalMilliseconds.ToString());
                    ConversationsProcessingAgent.tracer.TraceDebug <int>((long)this.GetHashCode(), "FixupStage = {0}", (int)conversationAggregationResult.Stage);
                    ConversationId conversationId = ConversationId.Create(conversationAggregationResult.ConversationIndex);
                    ConversationsProcessingAgent.tracer.TraceDebug <ConversationId>((long)this.GetHashCode(), "ConversationId (CID) for item: {0}", conversationId);
                    storeDriverDeliveryEventArgsImpl.PropertiesForAllMessageCopies[ItemSchema.ConversationIndex] = conversationAggregationResult.ConversationIndex.ToByteArray();
                    storeDriverDeliveryEventArgsImpl.ReplayItem.SafeSetProperty(ItemSchema.ConversationIndex, storeDriverDeliveryEventArgsImpl.PropertiesForAllMessageCopies[ItemSchema.ConversationIndex]);
                    storeDriverDeliveryEventArgsImpl.PropertiesForAllMessageCopies[ItemSchema.ConversationFamilyId] = conversationAggregationResult.ConversationFamilyId;
                    storeDriverDeliveryEventArgsImpl.ReplayItem.SafeSetProperty(ItemSchema.ConversationFamilyId, storeDriverDeliveryEventArgsImpl.PropertiesForAllMessageCopies[ItemSchema.ConversationFamilyId]);
                    storeDriverDeliveryEventArgsImpl.PropertiesForAllMessageCopies[ItemSchema.SupportsSideConversation] = conversationAggregationResult.SupportsSideConversation;
                    storeDriverDeliveryEventArgsImpl.ReplayItem.SafeSetProperty(ItemSchema.SupportsSideConversation, storeDriverDeliveryEventArgsImpl.PropertiesForAllMessageCopies[ItemSchema.SupportsSideConversation]);
                    byte[] value;
                    if (this.TryCalculateConversationCreatorSid(mailboxSession, storeDriverDeliveryEventArgsImpl.MailboxOwner, conversationAggregationResult, storeDriverDeliveryEventArgsImpl.ReplayItem.PropertyBag, out value))
                    {
                        storeDriverDeliveryEventArgsImpl.PropertiesForAllMessageCopies[ItemSchema.ConversationCreatorSID] = value;
                        storeDriverDeliveryEventArgsImpl.ReplayItem.SafeSetProperty(ItemSchema.ConversationCreatorSID, storeDriverDeliveryEventArgsImpl.PropertiesForAllMessageCopies[ItemSchema.ConversationCreatorSID]);
                    }
                    conversationIndexTrackingEx.TraceVersionAndHeuristics(conversationAggregationResult.Stage.ToString());
                    storeDriverDeliveryEventArgsImpl.PropertiesForAllMessageCopies[ItemSchema.ConversationIndexTrackingEx] = conversationIndexTrackingEx.ToString();
                    if (conversationAggregationResult.Stage != ConversationIndex.FixupStage.L1)
                    {
                        storeDriverDeliveryEventArgsImpl.PropertiesForAllMessageCopies[ItemSchema.ConversationIndexTracking] = true;
                        storeDriverDeliveryEventArgsImpl.ReplayItem.SafeSetProperty(ItemSchema.ConversationIndexTracking, storeDriverDeliveryEventArgsImpl.PropertiesForAllMessageCopies[ItemSchema.ConversationIndexTracking]);
                    }
                    ConversationsProcessingAgent.tracer.TraceDebug <ConversationIndexTrackingEx>((long)this.GetHashCode(), "Time Spent in different stages - {0}", conversationIndexTrackingEx);
                    ConversationsProcessingAgent.tracer.TraceDebug((long)this.GetHashCode(), "Processing conversation actions");
                    if (!ConversationIndex.IsFixUpCreatingNewConversation(conversationAggregationResult.Stage))
                    {
                        this.ProcessConversationActions(conversationId, storeDriverDeliveryEventArgsImpl);
                    }
                    if (ConversationIndex.IsFixupAddingOutOfOrderMessageToConversation(conversationAggregationResult.Stage))
                    {
                        if (storeDriverDeliveryEventArgsImpl.SharedPropertiesBetweenAgents == null)
                        {
                            storeDriverDeliveryEventArgsImpl.SharedPropertiesBetweenAgents = new Dictionary <PropertyDefinition, object>();
                        }
                        storeDriverDeliveryEventArgsImpl.SharedPropertiesBetweenAgents[ItemSchema.ConversationLoadRequiredByInference] = true;
                    }
                }
            }
            finally
            {
                stopwatch.Stop();
                MSExchangeConversationsProcessing.LastMessageProcessingTime.RawValue = stopwatch.ElapsedMilliseconds;
                ConversationsProcessingAgent.averageMessageProcessingTime.Update(stopwatch.ElapsedMilliseconds);
                ConversationsProcessingAgent.tracer.TraceDebug <long>((long)this.GetHashCode(), "Exiting ConversationsProcessing.ProcessMessage.  Total execution time = {0} ms.", stopwatch.ElapsedMilliseconds);
            }
        }
예제 #3
0
        public void Aggregate(ICorePropertyBag item, bool shouldSearchForDuplicatedMessage, out IStorePropertyBag parentItem, out ConversationIndex newIndex, out ConversationIndex.FixupStage stage)
        {
            newIndex = ConversationIndex.Empty;
            stage    = ConversationIndex.FixupStage.Unknown;
            string valueOrDefault = item.GetValueOrDefault <string>(InternalSchema.ItemClass, string.Empty);

            parentItem = null;
            if (!string.IsNullOrEmpty(valueOrDefault))
            {
                if (ObjectClass.IsMeetingMessage(valueOrDefault))
                {
                    if (AggregationByItemClassReferencesSubjectProcessor.FixupMeetingMessage(this.xsoFactory, this.session, new AggregationByItemClassReferencesSubjectProcessor.PropertyDefinitionListConstructorDelegate(this.GetSearchPropertyDefinitions), item, ref newIndex, ref stage, out parentItem))
                    {
                        return;
                    }
                }
                else if (ObjectClass.IsSmsMessage(valueOrDefault))
                {
                    AggregationBySmsItemClassProcessor aggregationBySmsItemClassProcessor = new AggregationBySmsItemClassProcessor(this.xsoFactory, this.session, this.indexTrackingEx);
                    aggregationBySmsItemClassProcessor.Aggregate(item, out newIndex, out stage);
                    return;
                }
            }
            ConversationIndex conversationIndex;
            bool flag = ConversationIndex.TryCreate(item.TryGetProperty(ItemSchema.ConversationIndex) as byte[], out conversationIndex);

            if (this.indexTrackingEx != null)
            {
                if (flag)
                {
                    this.indexTrackingEx.Trace(conversationIndex);
                }
                else
                {
                    this.indexTrackingEx.Trace("II", "<invalid>");
                }
            }
            if (AggregationByItemClassReferencesSubjectProcessor.SearchByReferences(this.xsoFactory, this.session, item, this.indexTrackingEx, shouldSearchForDuplicatedMessage, out parentItem, this.GetSearchPropertyDefinitions(null)))
            {
                bool flag2 = false;
                if (shouldSearchForDuplicatedMessage)
                {
                    string a    = item.TryGetProperty(ItemSchema.InternetMessageId) as string;
                    string text = parentItem.TryGetProperty(ItemSchema.InternetMessageId) as string;
                    flag2 = (!string.IsNullOrEmpty(text) && string.Equals(a, text, StringComparison.OrdinalIgnoreCase));
                }
                if (flag2)
                {
                    this.CalculateBasedOnMessageWithSameInternetMessageId(item, parentItem, out stage, out newIndex);
                }
                else
                {
                    this.CalculateBasedOnReferenceMessage(item, parentItem, out stage, out newIndex);
                }
            }
            string text2 = item.TryGetProperty(ItemSchema.NormalizedSubject) as string;

            if (stage == ConversationIndex.FixupStage.Unknown)
            {
                if (string.IsNullOrEmpty(item.GetValueOrDefault <string>(ItemSchema.SubjectPrefix)) && flag)
                {
                    if (conversationIndex.Components.Count > 1)
                    {
                        byte[]    incomingConversationIdBytes = ConversationId.Create(conversationIndex.Guid).GetBytes();
                        int       conversationIdHash          = (int)AllItemsFolderHelper.GetHashValue(incomingConversationIdBytes);
                        Stopwatch stopwatch = Stopwatch.StartNew();
                        parentItem = this.xsoFactory.RunQueryOnAllItemsFolder <IStorePropertyBag>(this.session, AllItemsFolderHelper.SupportedSortBy.ConversationIdHash, conversationIdHash, null, delegate(QueryResult queryResult)
                        {
                            IStorePropertyBag[] propertyBags;
                            byte[] array;
                            do
                            {
                                propertyBags = queryResult.GetPropertyBags(1);
                                if (propertyBags == null || propertyBags.Length != 1)
                                {
                                    goto IL_69;
                                }
                                int?num = propertyBags[0].TryGetProperty(ItemSchema.ConversationIdHash) as int?;
                                if (num == null || num.Value != conversationIdHash)
                                {
                                    goto IL_69;
                                }
                                array = (propertyBags[0].TryGetProperty(InternalSchema.MapiConversationId) as byte[]);
                            }while (array == null || !Util.CompareByteArray(incomingConversationIdBytes, array));
                            return(propertyBags[0]);

                            IL_69:
                            return(null);
                        }, this.GetSearchPropertyDefinitions(new StorePropertyDefinition[]
                        {
                            InternalSchema.MapiConversationId,
                            ItemSchema.ConversationIdHash
                        }));
                        stopwatch.Stop();
                        if (this.indexTrackingEx != null)
                        {
                            this.indexTrackingEx.Trace("SBCID", stopwatch.ElapsedMilliseconds.ToString());
                        }
                        if (parentItem != null && !ConversationIndex.CompareTopics(parentItem.TryGetProperty(ItemSchema.ConversationTopic) as string, text2))
                        {
                            newIndex = ConversationIndex.CreateNew();
                            stage    = ConversationIndex.FixupStage.H11;
                            if (this.indexTrackingEx != null)
                            {
                                string text3 = parentItem.TryGetProperty(ItemSchema.InternetMessageId) as string;
                                if (text3 != null)
                                {
                                    this.indexTrackingEx.Trace("S3", text3);
                                }
                            }
                        }
                    }
                    if (stage == ConversationIndex.FixupStage.Unknown)
                    {
                        newIndex = conversationIndex;
                        bool flag3 = parentItem != null;
                        if (flag3)
                        {
                            bool?flag4 = parentItem.TryGetProperty(ItemSchema.ConversationIndexTracking) as bool?;
                            stage = ((flag4 == null || !flag4.Value) ? ConversationIndex.FixupStage.L1 : ConversationIndex.FixupStage.H14);
                        }
                        else
                        {
                            stage = ConversationIndex.FixupStage.H4;
                        }
                    }
                }
                else
                {
                    if (string.IsNullOrEmpty(item.GetValueOrDefault <string>(ItemSchema.InReplyTo, string.Empty)) && string.IsNullOrEmpty(item.GetValueOrDefault <string>(ItemSchema.InternetReferences, string.Empty)) && string.IsNullOrEmpty(item.GetValueOrDefault <string>(ItemSchema.SubjectPrefix)) && !flag)
                    {
                        TopicHashCache topicHashCache = TopicHashCache.Load(this.xsoFactory, this.session, 50);
                        if (string.IsNullOrEmpty(text2) || !topicHashCache.Contains(AllItemsFolderHelper.GetHashValue(text2)))
                        {
                            newIndex = ConversationIndex.CreateNew();
                            stage    = ConversationIndex.FixupStage.H12;
                        }
                    }
                    bool flag5;
                    bool flag6;
                    if (stage == ConversationIndex.FixupStage.Unknown && AggregationByItemClassReferencesSubjectProcessor.SearchByTopic(this.xsoFactory, this.session, item, this.indexTrackingEx, out parentItem, out flag5, out flag6, this.GetSearchPropertyDefinitions(new StorePropertyDefinition[]
                    {
                        ItemSchema.ReceivedTime,
                        ItemSchema.InReplyTo,
                        ItemSchema.InternetReferences
                    })))
                    {
                        if (this.indexTrackingEx != null)
                        {
                            string text4 = parentItem.TryGetProperty(ItemSchema.InternetMessageId) as string;
                            if (text4 != null)
                            {
                                this.indexTrackingEx.Trace("S2", text4);
                            }
                        }
                        bool?flag7 = parentItem.TryGetProperty(ItemSchema.ConversationIndexTracking) as bool?;
                        bool flag8 = flag7 == null || !flag7.Value;
                        if (flag5)
                        {
                            newIndex = conversationIndex;
                            stage    = (flag8 ? ConversationIndex.FixupStage.L1 : ConversationIndex.FixupStage.H5);
                        }
                        else
                        {
                            ConversationIndex conversationIndex2;
                            bool flag9 = ConversationIndex.TryCreate(parentItem.TryGetProperty(ItemSchema.ConversationIndex) as byte[], out conversationIndex2);
                            if (flag6)
                            {
                                ExDateTime?valueAsNullable = item.GetValueAsNullable <ExDateTime>(ItemSchema.SentTime);
                                newIndex = ((valueAsNullable != null) ? ConversationIndex.Create(conversationIndex2.Guid, valueAsNullable.Value) : ConversationIndex.Create(conversationIndex2.Guid));
                                stage    = (flag8 ? ConversationIndex.FixupStage.L1 : ConversationIndex.FixupStage.H6);
                            }
                            else
                            {
                                object obj             = parentItem.TryGetProperty(ItemSchema.ReceivedTime);
                                string valueOrDefault2 = item.GetValueOrDefault <string>(ItemSchema.SubjectPrefix);
                                if (obj != null && obj is ExDateTime)
                                {
                                    ExDateTime dt       = (ExDateTime)obj;
                                    TimeSpan   timeSpan = ExDateTime.Now - dt;
                                    if (timeSpan.TotalHours >= -72.0 && timeSpan.TotalHours <= 72.0 && flag9)
                                    {
                                        if (flag)
                                        {
                                            newIndex = conversationIndex.UpdateGuid(conversationIndex2.Guid);
                                            stage    = (flag8 ? ConversationIndex.FixupStage.L1 : ConversationIndex.FixupStage.H9);
                                        }
                                        else if (!string.IsNullOrEmpty(valueOrDefault2))
                                        {
                                            ExDateTime?valueAsNullable2 = item.GetValueAsNullable <ExDateTime>(ItemSchema.SentTime);
                                            if (valueAsNullable2 != null)
                                            {
                                                newIndex = ConversationIndex.Create(conversationIndex2.Guid, valueAsNullable2.Value);
                                            }
                                            else
                                            {
                                                newIndex = ConversationIndex.Create(conversationIndex2.Guid);
                                            }
                                            stage = (flag8 ? ConversationIndex.FixupStage.L1 : ConversationIndex.FixupStage.H6);
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
            if (stage == ConversationIndex.FixupStage.Unknown)
            {
                if (!string.IsNullOrEmpty(item.GetValueOrDefault <string>(ItemSchema.SubjectPrefix)))
                {
                    TopicHashCache topicHashCache2 = TopicHashCache.Load(this.xsoFactory, this.session, 50);
                    uint           hashValue       = AllItemsFolderHelper.GetHashValue(text2);
                    topicHashCache2.Add(hashValue);
                    TopicHashCache.Save(topicHashCache2, this.xsoFactory, this.session);
                    if (this.indexTrackingEx != null)
                    {
                        this.indexTrackingEx.Trace("THA", hashValue.ToString());
                    }
                }
                if (flag)
                {
                    newIndex = conversationIndex;
                    stage    = ConversationIndex.FixupStage.H7;
                    return;
                }
                newIndex = ConversationIndex.CreateNew();
                stage    = ConversationIndex.FixupStage.H8;
            }
        }