private static int CheckContentIndex(int latestVersionID, string referenceName, string languageCode)
{
Objects.LatestContentItemIndex index = GetLatestContentItemIndex(languageCode);
//return true to indicate that we need to check again...
if (!string.IsNullOrEmpty(referenceName))
{
//checking for a specific content reference name
Objects.LatestContentIndexItem indexItem = null;
if (index.Index.TryGetValue(referenceName, out indexItem))
{
//found it in the index... check it
if (latestVersionID < indexItem.MaxVersionID)
{
return(indexItem.MaxVersionID);
}
}
else
{
//not in the index, there are not items in this view anymore, only need to check latest if latestVersionID is not 0 (zero)
return(latestVersionID);
}
}
else
{
//if we don't have a piece of content to check for
if (latestVersionID < index.MaxVersionID)
{
return(index.MaxVersionID);
}
}
return(0);
}
private static Objects.LatestContentItemIndex GetLatestContentItemIndex(string languageCode)
{
string fileName = string.Format("AgilityContentIndex_{0}.bin", languageCode);
string contentIndexFilePath = Path.Combine(BaseCache.GetLocalContentFilePath(), fileName);
Objects.LatestContentItemIndex index = AgilityContext.HttpContext.Items[fileName] as Objects.LatestContentItemIndex;
if (index == null)
{
lock (_contentIndexLock)
{
index = AgilityContext.HttpContext.Items[fileName] as Objects.LatestContentItemIndex;
if (index == null)
{
index = BaseCache.ReadFile <Objects.LatestContentItemIndex>(contentIndexFilePath);
if (index == null)
{
index = new Objects.LatestContentItemIndex();
}
int maxVersionID = index.MaxVersionID;
var indexDelta = ServerAPI.GetLatestContentItemIndex(maxVersionID, languageCode);
if (indexDelta != null)
{
foreach (var item in indexDelta)
{
if (item.MaxVersionID > index.MaxVersionID)
{
index.MaxVersionID = item.MaxVersionID;
}
index.Index[item.ReferenceName] = new Objects.LatestContentIndexItem()
{
MaxVersionID = item.MaxVersionID,
ReferenceName = item.ReferenceName,
Downloaded = false
};
}
BaseCache.WriteFile(index, contentIndexFilePath);
AgilityContext.HttpContext.Items[fileName] = index;
}
}
}
}
return(index);
}