private void AddToCacheUrlContentNode(string cacheId, int cacheSeconds, string requestUrl, int nodeId, string template, bool forceTemplate)
{
// Add to the cache
string cacheDependencyId = GetNodeCacheDependency(nodeId);
var urlContentNode = new UrlContentNode()
{
Url = requestUrl, NodeId = nodeId, Template = template, ForceTemplate = forceTemplate
};
Helpers.CacheHelper.GetExistingOrAddToCache(cacheId, cacheSeconds, CacheItemPriority.High,
() =>
{
return(urlContentNode);
},
new[] { Constants.Config.ConfigFilePhysicalPath }, new[] { cacheDependencyId });
// Add to the persistent cache
_PersistentCacheController.Add(urlContentNode);
}
public void Remove(int nodeId, bool removePersistentCacheFile = false)
{
if (_PersistentCache == null)
{
LoadPersistentCache();
}
if (_PersistentCache.Any())
{
// Remove the items from the memory collection
var itemsToRemove = _PersistentCache.Where(x => x.Value.NodeId == nodeId);
int numRemovedItems = 0;
foreach (var item in itemsToRemove)
{
// Try to remove the item
int numAttempts = 0;
UrlContentNode removedValue = null;
while (!_PersistentCache.TryRemove(item.Key, out removedValue) && numAttempts < 10)
{
numAttempts++;
System.Threading.Thread.Sleep(5);
}
//Check whether the item was removed successfully
if (numAttempts < 10)
{
numRemovedItems++;
}
else
{
// Reset the persitent cache in order to avoid inconsistencies.
ResetPersistentCache();
LogHelper.Warn <PersistentCacheController>(string.Format("Couldn't remove a UrlContentNode from the Routing persistent cache. In order to avoid inconsistencies the persitent cache was reset."));
return;
}
}
// Delete the file only if the memory collection has changed
if (removePersistentCacheFile && numRemovedItems > 0)
{
RemovePersistentCacheFile();
}
}
}
public void Add(UrlContentNode urlContentNode)
{
if (_PersistentCache == null)
{
LoadPersistentCache();
}
// Setup the cache persistent update process in order to make sure that the urlContentNode that is going to be added/updated will be saved
SetupPersistentCacheUpdateProcess();
// Add/Update the persistent cache
_PersistentCache.AddOrUpdate(urlContentNode.Url, urlContentNode, (key, oldValue) =>
{
oldValue.Url = urlContentNode.Url;
oldValue.NodeId = urlContentNode.NodeId;
oldValue.Template = urlContentNode.Template;
oldValue.ForceTemplate = urlContentNode.ForceTemplate;
return(oldValue);
});
}
