private static void LoadSingleTypeCacheConfig(IEnumerable <XElement> types)
{
SingleTypeCacheConfig config;
foreach (XElement el in types)
{
try
{
string name = el.Attribute("name").Value;
if (string.IsNullOrEmpty(name))
{
LogProxy.Warn(CACHETYPENAMEISNULL);
continue;
}
bool isFix = false;
if (el.Attribute("isfix") != null)
{
bool.TryParse(el.Attribute("isfix").Value.Trim(), out isFix);
if (isFix)
{
config = new SingleTypeCacheConfig(name, true, 0, 0);
MyCacheConfig[name] = config;
continue;
}
}
int second = 0;
if (el.Attribute("second") != null)
{
int.TryParse(el.Attribute("second").Value.Trim(), out second);
if (second < 0)
{
second = 0;
}
}
int size = 0;
if (el.Attribute("size") != null)
{
int.TryParse(el.Attribute("size").Value.Trim(), out size);
if (size < 0)
{
size = 0;
}
}
config = new SingleTypeCacheConfig(name, false, second, size);
MyCacheConfig[name] = config;
}
catch (Exception ex)
{
LogProxy.Error(ex, false);
}
}
}
private static void CacheClear()
{
string[] typesKeys = GetTypesKeys();
foreach (string typeName in typesKeys)
{
SingleTypeCacheConfig config = SingleTypeCacheConfig.Get(typeName);
Dictionary <string, MyCacheObject> caches = GetCaches(typeName);
#region 固定缓存
if (config.IsFix)
{
if (config.NextFixLoggingTime < DateTime.Now)
{
config.NextFixLoggingTime = DateTime.Now.AddMinutes(FixLoggingInterval);
LogProxy.InfoFormat(CACHEISFIX, typeName, caches.Count);
}
continue;
}
#endregion
OverdueTimeCacheClear(caches, typeName, config);
if (config.Size > 0)
{
OverSizeCacheClear(caches, typeName, config);
}
}
}
public ICacheable Get(Type type, string id)
{
if (string.IsNullOrEmpty(id))
{
return(null);
}
string fullName = type.FullName;
if (!IsNeedCached(fullName))
{
return(null);
}
SingleTypeCacheConfig config = SingleTypeCacheConfig.Get(fullName);
Dictionary <string, MyCacheObject> caches = GetCaches(fullName);
config.LockObj.EnterReadLock();
try
{
id = id.ToLower();
if (!caches.ContainsKey(id))
{
return(null);
}
MyCacheObject myCacheObject = caches[id];
if (!config.IsFix && myCacheObject.OverdueTime < DateTime.Now)
{
return(null);
}
myCacheObject.LastGetTime = DateTime.Now;
try
{
config.Getted(myCacheObject.Obj);
}
catch (Exception ex)
{
LogProxy.Error(ex, false);
}
return(myCacheObject.Obj);
}
catch (Exception ex)
{
LogProxy.Error(ex, false);
}
finally
{
config.LockObj.ExitReadLock();
}
return(null);
}
public void AddEvent <T>(OnCacheCleared cacheCleared, OnCacheSetted cacheSetted, OnCacheGetted cacheGetted) where T : ICacheable
{
if (!IsNeedCached <T>())
{
return;
}
SingleTypeCacheConfig config = SingleTypeCacheConfig.Get <T>();
if (cacheCleared != null)
{
config.CacheCleared += cacheCleared;
}
if (cacheSetted != null)
{
config.CacheSetted += cacheSetted;
}
if (cacheGetted != null)
{
config.CacheGetted += cacheGetted;
}
}
public bool IsNeedCached(string typeName)
{
return(SingleTypeCacheConfig.IsExist(typeName));
}
public bool IsNeedCached <T>() where T : ICacheable
{
return(SingleTypeCacheConfig.IsExist <T>());
}
private static void CacheClear(Dictionary <string, MyCacheObject> caches, string[] objKeys, ClearType clearType, SingleTypeCacheConfig config)
{
MyCacheObject objCache;
if (!config.LockObj.TryEnterWriteLock(WriteLockTimeout))
{
return;
}
try
{
foreach (string objKey in objKeys)
{
objCache = caches[objKey];
switch (clearType)
{
case ClearType.OverdueTime:
{
if (objCache.OverdueTime > DateTime.Now)
{
break;
}
caches.Remove(objCache.Obj.Id);
try
{
config.Cleared(objCache.Obj);
}
catch (Exception ex)
{
LogProxy.Error(ex, false);
}
break;
}
case ClearType.OverSize:
{
if (objCache.LastGetTime.AddSeconds(MinStayTime) > DateTime.Now)
{
break;
}
caches.Remove(objCache.Obj.Id);
try
{
config.Cleared(objCache.Obj);
}
catch (Exception ex)
{
LogProxy.Error(ex, false);
}
break;
}
}
}
}
finally
{
config.LockObj.ExitWriteLock();
}
}
private static void OverSizeCacheClear(Dictionary <string, MyCacheObject> caches, string typeName, SingleTypeCacheConfig config)
{
int cnt = caches.Count;
LogProxy.InfoFormat(BEFOREOVERSIZECACHECLEARINFO, typeName, cnt);
if (cnt < config.Size * 1.2)
{
return;
}
int clearSum = (int)(cnt - config.Size * 0.8);
LogProxy.InfoFormat(SIZEOVER, typeName, cnt - config.Size, clearSum);
string[] objKeys = GetOverSizeKeys(caches, clearSum, config);
if (objKeys == null || objKeys.Length == 0)
{
return;
}
CacheClear(caches, objKeys, ClearType.OverSize, config);
LogProxy.InfoFormat(AFTEROVERSIZECACHECLEARINFO, typeName, caches.Count);
}
private static string[] GetOverSizeKeys(Dictionary <string, MyCacheObject> caches, int clearSum, SingleTypeCacheConfig config)
{
config.LockObj.EnterReadLock();
try
{
return((from o in caches
where o.Value.LastGetTime.AddSeconds(MinStayTime) < DateTime.Now
orderby o.Value.LastGetTime ascending
select o.Key).Take(clearSum).ToArray());
}
finally
{
config.LockObj.ExitReadLock();
}
}
private static void OverdueTimeCacheClear(Dictionary <string, MyCacheObject> caches, string typeName, SingleTypeCacheConfig config)
{
LogProxy.InfoFormat(BEFOREOVERDUETIMECACHECLEARINFO, typeName, caches.Count);
string[] objKeys = GetOverdueTimeKeys(caches, config);
if (objKeys == null || objKeys.Length == 0)
{
return;
}
CacheClear(caches, objKeys, ClearType.OverdueTime, config);
LogProxy.InfoFormat(AFTEROVERDUETIMECACHECLEAR, typeName, caches.Count);
}
private static string[] GetOverdueTimeKeys(Dictionary <string, MyCacheObject> caches, SingleTypeCacheConfig config)
{
config.LockObj.EnterReadLock();
try
{
return((from o in caches
where o.Value.OverdueTime < DateTime.Now
select o.Key).ToArray());
}
finally
{
config.LockObj.ExitReadLock();
}
}
public void Set(ICacheable obj)
{
if (obj == null)
{
return;
}
string fullName = obj.GetType().FullName;
if (!IsNeedCached(fullName))
{
return;
}
SingleTypeCacheConfig config = SingleTypeCacheConfig.Get(fullName);
Dictionary <string, MyCacheObject> caches = GetCaches(fullName);
if (!config.LockObj.TryEnterWriteLock(WriteLockTimeout))
{
return;
}
try
{
string id = obj.Id.ToLower();
MyCacheObject myCacheObject;
if (caches.ContainsKey(id))
{
myCacheObject = caches[id];
if (myCacheObject.Obj.Version >= obj.Version)
{
return;
}
myCacheObject.Obj = obj;
myCacheObject.OverdueTime = DateTime.Now.AddSeconds(config.Second);
}
else
{
myCacheObject = new MyCacheObject(obj, DateTime.Now.AddSeconds(config.Second));
caches.Add(id, myCacheObject);
}
try
{
config.Setted(obj);
}
catch (Exception ex)
{
LogProxy.Error(ex, false);
}
}
catch (Exception ex)
{
LogProxy.Error(ex, false);
}
finally
{
config.LockObj.ExitWriteLock();
}
}
