/// <summary>
/// Loads an XML file into memory for faster read / write
/// </summary>
/// <param name="fileName">File to load</param>
/// <param name="timeOut">Time out in seconds - Default 2 minutes</param>
/// <param name="rootNode">Root node of XML File</param>
public static void BeginUpdate(string fileName, ulong timeOut = 120, string rootNode = "WebDefender")
{
// min time out 5 seconds, max timeout 20 minutes
timeOut = Utilities.CheckMinMaxU(timeOut, 5, 20 * 60);
using (TimedLock.Lock(_lockObject))
{
// is the file still in memory
if (_memoryXMLFile.ContainsKey(fileName))
{
return;
}
}
// not found, add to cache
XMLMemoryFile memFile = new XMLMemoryFile(fileName, timeOut);
XmlDocument doc = memFile.Document;
LoadXMLFile(ref doc, fileName, rootNode);
using (TimedLock.Lock(_lockObject))
{
_memoryXMLFile.Add(fileName, memFile);
}
}
/// <summary>
/// Ends an update on the file and removes from cache
/// </summary>
/// <param name="fileName">xml file</param>
/// <param name="save">Determines wether contents should be saved</param>
public static void EndUpdate(string fileName, bool save)
{
using (TimedLock.Lock(_lockObject))
{
// is the file still in memory
if (!_memoryXMLFile.ContainsKey(fileName))
{
return;
}
// found, save file and remove from cache
if (save)
{
XMLMemoryFile memFile = _memoryXMLFile[fileName];
memFile.Document.Save(memFile.FileName);
}
_memoryXMLFile.Remove(fileName);
}
}