/// <summary>
/// Verileri Cacheler gönderilen data cache de yoksa cache e atar varsa geriye cache den döner
/// Kullanımı : List<User> items = Cache.Data("test", 10, () => GetUsers());
/// </summary>
/// <typeparam name="T">GenericType</typeparam>
/// <param name="cache"></param>
/// <param name="cacheKey">Cache Adı</param>
/// <param name="cacheTimeType"></param>
/// <param name="expiration"></param>
/// <param name="method"></param>
/// <param name="expirationSeconds">Cache in bitme süresi gün bazında</param>
/// <returns></returns>
public static T Data <T>(this Cache cache, string cacheKey, CacheTimeType cacheTimeType, int expiration, Func <T> method)
{
var data = cache == null ? default(T) : (T)cache[cacheKey];
//if (data == null)
//{
data = method();
if (expiration > 0 && data != null)
{
lock (sync)
{
DateTime expirationTime;
#region CacheTimeType
switch (cacheTimeType)
{
case CacheTimeType.Millisecond:
expirationTime = DateTime.Now.AddMilliseconds(expiration);
break;
case CacheTimeType.Second:
expirationTime = DateTime.Now.AddSeconds(expiration);
break;
case CacheTimeType.Minute:
expirationTime = DateTime.Now.AddMinutes(expiration);
break;
case CacheTimeType.Day:
expirationTime = DateTime.Now.AddDays(expiration);
break;
case CacheTimeType.Hour:
expirationTime = DateTime.Now.AddHours(expiration);
break;
case CacheTimeType.Month:
expirationTime = DateTime.Now.AddMonths(expiration);
break;
case CacheTimeType.Year:
expirationTime = DateTime.Now.AddYears(expiration);
break;
default:
expirationTime = DateTime.Now.AddSeconds(expiration);
break;
}
#endregion
if (cache != null)
{
cache.Insert(cacheKey, data, null, expirationTime, Cache.NoSlidingExpiration);
}
}
}
//}
return(data);
}
/// <summary>
/// 计算缓存的时间
/// </summary>
/// <param name="type"></param>
/// <param name="length"></param>
/// <returns></returns>
private DateTime GetCacheNewTime(CacheTimeType type, int length)
{
if (length <= 0)
{
return(DateTime.MaxValue);
}
var limitTime = DateTime.Now;
switch (type)
{
case CacheTimeType.Day:
limitTime = limitTime.AddDays(length);
break;
case CacheTimeType.Hour:
limitTime = limitTime.AddHours(length);
break;
case CacheTimeType.Minute:
limitTime = limitTime.AddMinutes(length);
break;
case CacheTimeType.Second:
limitTime = limitTime.AddSeconds(length);
break;
}
return(limitTime);
}
public virtual List <T> ListCache(string cacheName, CacheTimeType cacheTimeType, int cacheTime, Expression <Func <T, bool> > where, int count)
{
if (!CacheExtensions.CheckCache(cacheName))
{
CacheExtensions.SetCache(cacheName, (object)this.dbset.AsNoTracking <T>().Where <T>(where).Take <T>(count).ToList <T>(), cacheTimeType, cacheTime);
}
return(CacheExtensions.GetCache <List <T> >(cacheName));
}
public virtual List <T> ListCache(string cacheName, CacheTimeType cacheTimeType, int cacheTime)
{
if (!CacheExtensions.CheckCache(cacheName))
{
CacheExtensions.SetCache(cacheName, (object)this.dbset.AsNoTracking <T>().ToList <T>(), cacheTimeType, cacheTime);
}
return(CacheExtensions.GetCache <List <T> >(cacheName));
}
public static T GetCacheWithSet <T>(string cacheName, Func <T> valueFunc, CacheTimeType cacheTimeType, int times)
{
if (!CacheExtensions.CheckCache(cacheName))
{
CacheExtensions.SetCache(cacheName, (object)valueFunc(), cacheTimeType, times);
}
return(CacheExtensions.GetCache <T>(cacheName));
}
public static void SetCache(string cacheName, object value, CacheTimeType cacheTimeType, int cacheTime)
{
switch (cacheTimeType)
{
case CacheTimeType.ByMinutes:
HttpContext.Current.Cache.Insert(cacheName, value, (CacheDependency)null, DateTime.Now.AddMinutes((double)cacheTime), TimeSpan.Zero);
break;
case CacheTimeType.ByHours:
HttpContext.Current.Cache.Insert(cacheName, value, (CacheDependency)null, DateTime.Now.AddHours((double)cacheTime), TimeSpan.Zero);
break;
case CacheTimeType.ByDays:
HttpContext.Current.Cache.Insert(cacheName, value, (CacheDependency)null, DateTime.Now.AddDays((double)cacheTime), TimeSpan.Zero);
break;
case CacheTimeType.ByYears:
HttpContext.Current.Cache.Insert(cacheName, value, (CacheDependency)null, DateTime.Now.AddYears(cacheTime), TimeSpan.Zero);
break;
}
}
public static long GetCacheTime(long cacheTime, CacheTimeType cacheTimeType)
{
int cacheTimeMultiplier;
switch (cacheTimeType)
{
case CacheTimeType.Second:
cacheTimeMultiplier = 1000;
break;
case CacheTimeType.Minute:
cacheTimeMultiplier = 60000;
break;
case CacheTimeType.Hour:
cacheTimeMultiplier = 3600000;
break;
default:
cacheTimeMultiplier = 1;
break;
}
var result = cacheTime*cacheTimeMultiplier;
return result;
}
public static MvcHtmlString Cache(this HtmlHelper htmlHelper, string cacheName, Func <object> func, CacheTimeType cacheTimeType, int cacheTime)
{
if (!CacheExtensions.CheckCache(cacheName))
{
CacheExtensions.SetCache(cacheName, (object)func().ToString(), cacheTimeType, cacheTime);
}
return(MvcHtmlString.Create(CacheExtensions.GetCache <string>(cacheName)));
}
