/// <summary>
/// 处理Cache项的改变
/// </summary>
/// <param name="data"></param>
protected void DoCacheChanged(CacheNotifyData data)
{
DependencyBase dependency;
if (data.NotifyType == CacheNotifyType.Clear)
{
//清除所有UDP缓存相关的缓存队列
CacheQueueBase needToClearQueue = null;
lock (this.CacheItems)
{
foreach (KeyValuePair <CacheNotifyKey, DependencyBase> kp in this.CacheItems)
{
if (kp.Key.CacheQueueType == data.CacheQueueType)
{
needToClearQueue = kp.Value.CacheItem.Queue;
}
}
}
if (needToClearQueue != null)
{
needToClearQueue.Clear();
}
}
else
{
CacheNotifyKey key = new CacheNotifyKey();
key.CacheKey = data.CacheKey;
key.CacheQueueType = data.CacheQueueType;
lock (this.CacheItems)
{
if (this.CacheItems.TryGetValue(key, out dependency))
{
switch (data.NotifyType)
{
case CacheNotifyType.Invalid:
dependency.SetChanged();
this.CacheItems.Remove(key);
break;
case CacheNotifyType.Update:
dependency.CacheItem.SetValue(data.CacheData);
break;
}
}
}
}
}
/// <summary>
/// 构造函数，初始化具有Dependency的CacheItem
/// </summary>
/// <param name="tKey">初始化CacheItem的键值</param>
/// <param name="data">CacheItem的Value</param>
/// <param name="dependencyBase">与此CacheItem相关的Dependency，用以判断过期</param>
/// <param name="cacheQueue"> 本CacheItem所属的CacheQueue的引用</param>
public CacheItem(TKey tKey, TValue data, DependencyBase dependencyBase, CacheQueueBase cacheQueue)
: base(cacheQueue)
{
this.key = tKey;
this.tValue = data;
if (dependencyBase != null)
{
dependencyBase.CacheItem = this;
dependencyBase.CacheItemBinded();
}
this.Dependency = dependencyBase;
}
/// <summary>
/// 渲染每一条Cache项
/// </summary>
/// <param name="writer"></param>
/// <param name="queueInfo"></param>
private static void RenderCacheQueueItemsInfo(HtmlTextWriter writer, CacheQueueInfo queueInfo)
{
Type type = TypeCreator.GetTypeInfo(queueInfo.QueueTypeFullName);
CacheQueueBase cacheQueue = CacheManager.GetInstance(type);
CacheItemInfoCollection itemsInfo = cacheQueue.GetAllItemsInfo();
foreach (CacheItemInfo itemInfo in itemsInfo)
{
writer.WriteBeginTag("div");
writer.WriteAttribute("class", "queueInfoDetail");
writer.Write(">");
writer.Write(HttpUtility.HtmlEncode(string.Format("Key={0}, Value={1}", itemInfo.Key, itemInfo.Value)));
writer.WriteEndTag("div");
}
}
/// <summary>
/// 构造函数，初始化没有Dependency的CacheItem
/// </summary>
/// <param name="tKey">初始化CacheItem的Key值</param>
/// <param name="data">初始化CacheItem的Value值</param>
/// <param name="cacheQueue">本CacheItem所属的CacheQueue的引用</param>
public CacheItem(TKey tKey, TValue data, CacheQueueBase cacheQueue)
: base(cacheQueue)
{
this.key = tKey;
this.tValue = data;
}
/// <summary>
/// 构造方法
/// </summary>
/// <param name="cacheQueueBase"></param>
public CacheItemBase(CacheQueueBase cacheQueueBase)
{
this.cacheQueue = cacheQueueBase;
}
