protected override void CreateCacheHierarchy(CacheCapacity[] cacheCapacityList)
{
if (cacheCapacityList.Length != 2)
{
throw new Exception("CapacityList doesn't match SchedulerType");
}
RAMCache ram = new RAMCache(CacheMediumType.RAM.ToString(), cacheCapacityList[0], this.logger);
FileCache file = new FileCache(CacheMediumType.File.ToString(), cacheCapacityList[1], this.logger);
ram.PreviousCacheMedium = null;
ram.NextCacheMedium = file;
file.PreviousCacheMedium = ram;
file.NextCacheMedium = null;
this.mediums.Add(ram);
this.mediums.Add(file);
if (this.logger != null)
{
this.logger.Log("First medium is RAM, second medum is File.", Category.Debug, Priority.Low);
}
}
public MediumConfiguration(CacheMediumType type, CacheCapacity capacity, IReplacementAlgorithm algorithm)
{
this.type = type;
this.capacity = capacity;
this.algorithm = algorithm;
}
public RAMCache(string name, CacheCapacity capacity, ILoggerFacade logger)
: base(name, capacity, logger)
{
// if there is no capacity parameter initialized, do not use cache
if (this.Capacity.IsEmpty() == true)
{
throw new Exception("Cache capacity is not initialized.");
}
this.cacheDictionary = new Dictionary<CacheKey, CacheValue>();
}
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 static CacheCapacity ParseCacheCapacity(XmlNode node)
{
XmlAttributeCollection attributes = node.Attributes;
if (attributes == null || attributes.Count != 1)
{
throw new Exception("Capacity element is invalid.");
}
if (attributes[0].Name == "Type")
{
CacheCapacity capacity = new CacheCapacity((Primary)Enum.Parse(typeof(Primary), attributes[0].Value));
capacity.Count = long.Parse(node.InnerText);
return capacity;
}
return null;
}
public FileCache(string name,CacheCapacity capacity, ILoggerFacade logger)
: base(name, capacity, logger)
{
}
public void UpdateCacheCapacity(CacheCapacity capacity)
{
this.capacity = capacity;
}
protected abstract void CreateCacheHierarchy(CacheCapacity[] cacheCapacityList);