private static void SetPageItemsDownloaded(IEnumerable <Objects.LatestPageIndexItem> items, string languageCode)
{
string fileName = string.Format("AgilityPageIndex_{0}.bin", languageCode);
string pageIndexFilePath = Path.Combine(BaseCache.GetLocalContentFilePath(), fileName);
lock (_pageIndexLock)
{
Objects.LatestPageIndex index = GetLatestPageItemIndex(languageCode);
if (index == null)
{
return;
}
Objects.LatestPageIndexItem indexItem = null;
foreach (var item in items)
{
if (index.Index.TryGetValue(item.PageID, out indexItem))
{
indexItem.Downloaded = item.Downloaded;
}
}
BaseCache.WriteFile(index, pageIndexFilePath);
AgilityContext.HttpContext.Items[fileName] = index;
}
}
private static Objects.LatestPageIndex GetLatestPageItemIndex(string languageCode)
{
string fileName = string.Format("AgilityPageIndex_{0}.bin", languageCode);
string pageIndexFilePath = Path.Combine(BaseCache.GetLocalContentFilePath(), fileName);
Objects.LatestPageIndex index = AgilityContext.HttpContext.Items[fileName] as Objects.LatestPageIndex;
if (index == null)
{
lock (_pageIndexLock)
{
index = AgilityContext.HttpContext.Items[fileName] as Objects.LatestPageIndex;
if (index == null)
{
index = BaseCache.ReadFile <Objects.LatestPageIndex>(pageIndexFilePath);
if (index == null)
{
index = new Objects.LatestPageIndex();
}
int maxVersionID = index.MaxVersionID;
var indexDelta = ServerAPI.GetLatestPageItemIndex(maxVersionID, languageCode);
if (indexDelta != null)
{
foreach (var item in indexDelta)
{
if (item.MaxVersionID > index.MaxVersionID)
{
index.MaxVersionID = item.MaxVersionID;
}
index.Index[item.PageID] = new Objects.LatestPageIndexItem()
{
MaxVersionID = item.MaxVersionID,
PageID = item.PageID,
Downloaded = false
};
}
BaseCache.WriteFile(index, pageIndexFilePath);
AgilityContext.HttpContext.Items[fileName] = index;
}
}
}
}
return(index);
}
/// <summary>
/// Returns true if the version of the page is out of date
/// </summary>
/// <param name="latestVersionID"></param>
/// <param name="pageID"></param>
/// <param name="languageCode"></param>
/// <returns></returns>
private static bool CheckPageIndex(int latestVersionID, int pageID, string languageCode)
{
Objects.LatestPageIndex index = GetLatestPageItemIndex(languageCode);
//return true to indicate that we need to check again...
if (pageID > 0)
{
//checking for a specific page
Objects.LatestPageIndexItem indexItem = null;
if (index.Index.TryGetValue(pageID, out indexItem))
{
return(latestVersionID < indexItem.MaxVersionID);
}
}
else
{
//if we don't have a page to check for
return(latestVersionID < index.MaxVersionID);
}
return(true);
}
