public FactKeyWithCells GetFactKeyWithCells(int index)
{
var result = new FactKeyWithCells();
FactKeyDictionary page = null;
if (index >= LastPage.IndexStartAt && index < LastPage.IndexEndAt)
{
page = LastPage;
}
else
{
int pid = index / NrItemsPerPage;
page = this.Pages[pid];
LastPage = page;
}
if (!page.IsLoaded)
{
//if (page.ID == 21)
//{
//}
LoadPage(page);
}
if (page.LookupOfIndexes.ContainsKey(index))
{
result = page.LookupOfIndexes[index];
}
return(result);
}
public void AddCellToFactUnsafe(FactKeyDictionary page, int index, int cellix)
{
FactsManager.FactsOfPages[index].Add(cellix);
FactsManager.FactsOfPages.AddCellToFact(index, cellix);
page.IsDirty = true;
//if (index == 1100000)
//{
// Console.WriteLine(Utilities.Converters.DateTimeToString(DateTime.Now, Utilities.Converters.DateTimeFormat) + ": " + "Adding "+index);
//}
}
public FactKeyDictionary CreatePage(PeristenceEnum peristence)
{
var page = new FactKeyDictionary();
page.ID = this.Pages.Count;
page.NrMaxItems = this.NrItemsPerPage;
page.IndexStartAt = page.ID * page.NrMaxItems;
page.IndexEndAt = page.IndexStartAt + page.NrMaxItems;
this.Pages.Add(page);
page.PeristenceState = peristence;
LastPage = page;
return(page);
}
public FactKeyDictionary CreatePage()
{
Log("Creating Page " + this.Pages.Count);
var page = new FactKeyDictionary();
page.ID = this.Pages.Count;
page.NrMaxItems = this.NrItemsPerPage;
page.IndexStartAt = page.ID * page.NrMaxItems;
page.IndexEndAt = page.IndexStartAt + page.NrMaxItems;
this.Pages.Add(page);
AddIDToLoadedPages(page.ID);
LastPage = page;
return(page);
}
private void Unload(FactKeyDictionary page)
{
page.PeristenceState = PeristenceEnum.Unloading;
if (page.ID == 11)
{
}
Log("UnLoading page" + page.ID);
lock (page.Locker)
{
if (page.IsDirty)
{
SaveToFS(page);
}
else
{
page.Clear(Log);
}
RemoveIDFromLoadedPages(page.ID);
page.PeristenceState = PeristenceEnum.Unloaded;
}
}
public void LoadPage(FactKeyDictionary page)
{
Log("Loading page" + page.ID);
//Utilities.Logger.WriteLine("Loading page" + page.ID);
page.PeristenceState = PeristenceEnum.Loading;
var filepath = GetFilePath(page.ID);
lock (page.Locker)
{
// Open the text file using a stream reader.
using (StreamReader sr = new StreamReader(filepath))
{
while (sr.Peek() >= 0)
{
String line = sr.ReadLine();
var kv = page.Save(line);
}
page.IsDirty = false;
}
// Read the stream to a string, and write the string to the console.
page.PeristenceState = PeristenceEnum.Loaded;
if (NrLoadedPages != 0 && LoadedPages.Count > NrLoadedPages)
{
var ix = 0;
if (LoadedPages[ix] == page.ID)
{
ix++;
}
Unload(ix);
}
AddIDToLoadedPages(page.ID);
LastPage = page;
}
}
//public object Locker = new Object();
public void SaveToFS(FactKeyDictionary page, Boolean unload = true)
{
Task.Run(
() =>
{
lock (page.Locker)
{
var state = page.PeristenceState;
page.PeristenceState = PeristenceEnum.Saving;
var msg = String.Format("Saveing page{0} to FS", page.ID);
Log(msg);
//Utilities.Logger.WriteLine(msg);
var path = GetFilePath(page.ID);
Utilities.FS.EnsurePath(path);
//Utilities.FS.WriteAllText(path, page.Content());
using (System.IO.StreamWriter fsw = new System.IO.StreamWriter(path, false))
{
foreach (var item in page.LookupOfIndexes)
{
fsw.WriteLine(FactKeyDictionary.Content(item));
}
page.PeristenceState = state;
}
Log(String.Format("page{0} was saved to FS", page.ID));
page.IsDirty = false;
if (unload)
{
page.Clear(Log);
RemoveIDFromLoadedPages(page.ID);
page.PeristenceState = PeristenceEnum.Unloaded;
}
}
});
}
