///// <summary>
///// Get or set the CacheAgent
///// </summary>
//public override ICacheAgent CacheAgent
//{
// get
// {
// if (_cacheAgent == null)
// {
// _cacheAgent = new NullCacheAgent();
// // the next line is the only reason we are overriding this property: to set a callback
// _cacheAgent.GetLastPublishDateCallBack = GetLastPublishedDateCallBack;
// }
// return _cacheAgent;
// }
// set
// {
// _cacheAgent = value;
// _cacheAgent.GetLastPublishDateCallBack = GetLastPublishedDateCallBack;
// }
//}
public bool TryGetComponentPresentation(out IComponentPresentation cp, string componentUri, string templateUri = "")
{
cp = null;
string cacheKey = CacheKeyFactory.GenerateKeyFromUri(componentUri, CacheRegion);
cp = (IComponentPresentation)CacheAgent.Load(cacheKey);
if (cp != null)
{
LoggerService.Debug("<<TryGetComponentPresentation ({0}) - from cache", LoggingCategory.Performance, componentUri);
return(true);
}
string content = !String.IsNullOrEmpty(templateUri) ?
ComponentPresentationProvider.GetContent(componentUri, templateUri) :
ComponentPresentationProvider.GetContent(componentUri);
if (string.IsNullOrEmpty(content))
{
LoggerService.Debug("<<TryGetComponentPresentationOrComponent - no content found by provider for uris {0} and {1}", LoggingCategory.Performance, componentUri, templateUri);
return(false);
}
LoggerService.Debug("about to create IComponentPresentation from content ({0})", LoggingCategory.Performance, componentUri);
cp = GetIComponentPresentationObject(content);
LoggerService.Debug("finished creating IComponentPresentation from content ({0})", LoggingCategory.Performance, componentUri);
// if there is no ComponentTemplate, the content of this CP probably represents a component instead of a component PRESENTATION
// in that case, we should at least add the template uri method parameter (if there is one) to the object
if (cp.ComponentTemplate == null)
{
((ComponentPresentation)cp).ComponentTemplate = new ComponentTemplate();
}
if (cp.ComponentTemplate.Id == null)
{
((ComponentPresentation)cp).ComponentTemplate.Id = templateUri;
}
LoggerService.Debug("about to store IComponentPresentation in cache ({0})", LoggingCategory.Performance, componentUri);
CacheAgent.Store(cacheKey, CacheRegion, cp, new List <string> {
cp.Component.Id
});
LoggerService.Debug("finished storing IComponentPresentation in cache ({0})", LoggingCategory.Performance, componentUri);
LoggerService.Debug("<<TryGetComponentPresentation ({0})", LoggingCategory.Performance, componentUri);
return(cp != null);
}