public CacheMediumBase(string name, CacheCapacity capacity, ILoggerFacade logger)
{
this.logger = logger;
if (this.logger != null)
{
this.logger.Log("Cache medium " + name + " instance is created.", Category.Info, Priority.Medium);
}
this.Capacity = capacity;
this.name = name;
this.algorithm = null;
this.next = null;
this.previous = null;
this.algorithmData = new AlgorithmData();
this.rwLock = new object();
}
private void MoveCacheItem(ICacheMedium from, ICacheMedium to, CacheKey key, CacheValue value)
{
if (this.logger != null)
{
this.logger.Log("Move cache item: " + key.ToString() + " from " + from.CacheName + " to " + to.CacheName, Category.Info, Priority.Medium);
}
from.Remove(key);
to.Set(key, value);
}
private void ReplaceItemsIfNecessary(ICacheMedium medium)
{
CacheKey[] items = medium.Replace();
if (items == null)
{
return;
}
ICacheMedium next = medium.Next();
if (next != null)
{
foreach (CacheKey item in items)
{
// set the cache item to next medium
next.Set(item, medium.Get(item));
}
}
foreach (CacheKey item in items)
{
// remove the cache item from previous medium
medium.Remove(item);
}
}
