/// <summary>
/// Adds an object to the SQLCache
/// </summary>
public static void AddToCache(string Key, object Obj, ref SQLOptions o)
{
if (System.Web.HttpContext.Current == null)
{
throw new Exception("Caching is not available outside of web context");
}
//if(log == null)
//log = new TextLog();
if (o.DoFileCache)
{
try
{
SQLFileCache.AddToFileCache(Key, Obj, ref o);
}
catch (Exception ex)
{
o.WriteToLog("Error trying to save to SQL FileCache: " + ex.Message);
General.Debugging.Report.SendError("Error trying to save to SQL FileCache", ex);
}
}
if (o.DoMemoryCache)
{
SQLMemoryCache.AddToMemoryCache(Key, Obj, ref o);
}
}
/// <summary>
/// Gets all expiration records
/// </summary>
private static System.Xml.XmlDocument GetFileExpirations(ref SQLOptions o)
{
System.Xml.XmlDocument doc;
object obj;
o.WriteToLog("attempt loading cache_expirations from memory");
obj = SQLMemoryCache.GetFromMemoryCache("cache_expirations", ref o);
if (obj == null)
{
o.WriteToLog("attempt loading cache_expirations from file");
string FileName = GetCacheFilePath("cache_expirations");
if (System.IO.File.Exists(FileName))
{
doc = new System.Xml.XmlDocument();
doc.Load(FileName);
o.WriteToLog("saving cache_expirations to memory");
SQLMemoryCache.AddToMemoryCache("cache_expirations", doc, ref o, DateTime.Now.AddDays(30), false);
return(doc);
}
else
{
o.WriteToLog("creating file and saving cache_expirations to memory");
doc = CreateFileExpirationsFile(null, ref o);
SQLMemoryCache.AddToMemoryCache("cache_expirations", doc, ref o, DateTime.Now.AddDays(30), false);
return(doc);
}
}
else
{
return((System.Xml.XmlDocument)obj);
}
}
/// <summary>
/// Retrieves an object from the SQLCache
/// </summary>
public static object GetFromCache(string Key, ref SQLOptions o)
{
object obj = null;
if (System.Web.HttpContext.Current == null)
{
throw new Exception("Caching is not available outside of web context");
}
if (o.DoMemoryCache)
{
obj = SQLMemoryCache.GetFromMemoryCache(Key, ref o);
}
if (obj != null)
{
//General.Debug.Trace("Got from memory cache");
o.WriteToLog("Retrieved from memory cache");
}
if (obj == null && o.DoFileCache)
{
try
{
obj = SQLFileCache.GetFromFileCache(Key, ref o);
if (obj != null && o.DoMemoryCache)
{
SQLMemoryCache.AddToMemoryCache(Key, obj, ref o);
}
}
catch (Exception ex)
{
obj = null;
o.WriteToLog("Error trying to load SQL FileCache: " + ex.Message);
General.Debugging.Report.SendError("Error trying to load SQL FileCache", ex);
}
if (obj != null)
{
General.Debug.Trace("Got from file cache");
o.WriteToLog("Retrieved from file cache");
}
}
return(obj);
}
/// <summary>
/// Saves expiration records
/// </summary>
public static void SaveFileExpirations(System.Xml.XmlDocument doc, ref SQLOptions o)
{
SQLMemoryCache.AddToMemoryCache("cache_expirations", doc, ref o, DateTime.Now.AddDays(30), false);
CreateFileExpirationsFile(doc, ref o);
}