public ItemPart GetItemPart(IConversationTree conversationTree, StoreObjectId itemId)
{
IStorePropertyBag propertyBag = null;
ItemPart itemPart = null;
IConversationTreeNode conversationTreeNode = null;
if (!conversationTree.TryGetConversationTreeNode(itemId, out conversationTreeNode) || !conversationTreeNode.TryGetPropertyBag(itemId, out propertyBag))
{
throw new ArgumentException("No ConversationTreeNode/PropertyBag can be found for the passed StoreObjectId");
}
if (!this.itemParts.TryGetValue(itemId, out itemPart))
{
this.LoadItemPart(conversationTree, propertyBag);
itemPart = this.loadedItemParts[itemId];
}
if (itemPart is LoadedItemPart && !itemPart.DidLoadSucceed)
{
return(itemPart);
}
if (itemPart.UniqueFragmentInfo == null)
{
LoadedItemPart loadedItemPart = (LoadedItemPart)itemPart;
ExtractionData extractionData;
if (!this.CanSkipDiffing(conversationTree, loadedItemPart, out extractionData))
{
BodyFragmentInfo parentBodyFragment = null;
if (conversationTreeNode.ParentNode.HasData)
{
StoreObjectId mainStoreObjectId = conversationTreeNode.ParentNode.MainStoreObjectId;
if (this.treeNodeBodyFragment.ContainsKey(mainStoreObjectId))
{
parentBodyFragment = this.treeNodeBodyFragment[mainStoreObjectId].Key;
}
else
{
LoadedItemPart loadedItemPart2 = null;
if (!this.loadedItemParts.TryGetValue(mainStoreObjectId, out loadedItemPart2))
{
IStorePropertyBag propertyBag2;
if (!conversationTreeNode.ParentNode.TryGetPropertyBag(mainStoreObjectId, out propertyBag2))
{
throw new ArgumentException("No Property bag can be found for the passed StoreObjectId on the ParentNode");
}
this.LoadItemPart(conversationTree, propertyBag2);
loadedItemPart2 = this.loadedItemParts[mainStoreObjectId];
}
parentBodyFragment = loadedItemPart2.BodyFragmentInfo;
}
}
ConversationDataExtractor.DiffItemParts(parentBodyFragment, loadedItemPart);
}
else
{
itemPart.UniqueFragmentInfo = extractionData.ChildUniqueBody;
itemPart.DisclaimerFragmentInfo = extractionData.ChildDisclaimer;
}
}
return(itemPart);
}
