/// <summary>Begins a new cache section.</summary>
/// <param name="webGreaseSectionKey">The web Grease Section Key.</param>
/// <param name="autoLoad">The auto Load.</param>
/// <returns>The <see cref="ICacheSection"/>.</returns>
public ICacheSection BeginSection(WebGreaseSectionKey webGreaseSectionKey, bool autoLoad = true)
{
return(this.currentCacheSection = CacheSection.Begin(
this.context,
webGreaseSectionKey.Category,
webGreaseSectionKey.Value,
this.CurrentCacheSection,
autoLoad));
}
/// <summary>
/// Executes the action for the cached section
/// the boolean/success result of the action will determine if the action will be stored in cache.
/// </summary>
/// <param name="cachableSectionAction">The section action.</param>
/// <returns>If all was successfull (being passed from within the actions).</returns>
public bool Execute(Func <ICacheSection, bool> cachableSectionAction)
{
var id = WebGreaseContext.ToStringId(this.idParts);
var webGreaseSectionKey = new WebGreaseSectionKey(this.context, id, this.cacheVarByContentItem, this.cacheVarBySetting, this.cacheVarByFileSet);
var sectionLock = SectionLocks.GetOrAdd(webGreaseSectionKey.Value, new object());
return(Safe.Lock(
sectionLock,
this.cacheInfiniteWaitForLock ? Safe.MaxLockTimeout : Safe.DefaultLockTimeout,
() =>
{
var errorHasOccurred = false;
EventHandler logOnErrorOccurred = delegate { errorHasOccurred = true; };
this.context.Log.ErrorOccurred += logOnErrorOccurred;
var cacheSection = this.context.Cache.BeginSection(webGreaseSectionKey);
try
{
if (this.context.TemporaryIgnore(this.cacheVarByFileSet, this.cacheVarByContentItem) && !errorHasOccurred)
{
cacheSection.Save();
return true;
}
cacheSection.Load();
if (this.cacheIsSkipable && cacheSection.CanBeSkipped())
{
if (this.whenSkippedAction != null)
{
this.whenSkippedAction(cacheSection);
}
if (!errorHasOccurred)
{
return true;
}
}
if (this.restoreFromCacheAction != null && cacheSection.CanBeRestoredFromCache())
{
if (this.restoreFromCacheAction(cacheSection) && !errorHasOccurred)
{
return true;
}
}
this.context.Measure.Start(this.isGroup, this.idParts);
try
{
if (!cachableSectionAction(cacheSection) || errorHasOccurred)
{
return false;
}
cacheSection.Save();
return true;
}
finally
{
this.context.Measure.End(this.isGroup, this.idParts);
}
}
finally
{
this.context.Log.ErrorOccurred -= logOnErrorOccurred;
cacheSection.EndSection();
}
}));
}
/// <summary>Begins a new cache section.</summary>
/// <param name="webGreaseSectionKey">The web Grease Section Key.</param>
/// <param name="autoLoad">The auto Load.</param>
/// <returns>The <see cref="ICacheSection"/>.</returns>
public ICacheSection BeginSection(WebGreaseSectionKey webGreaseSectionKey, bool autoLoad = true)
{
return(EmptyCacheSection);
}