using System;
using System.Collections;
using System.Text.RegularExpressions;
using System.Web;
using System.Web.Caching;

namespace BoovooCms.CacheService


{

/**//// <summary>
/// Class1 的摘要说明。
/// </summary>
public class BoovooCache

{
private static readonly Cache boovoo_cache;
public static readonly int DayFactor = 17280;
public static readonly int HourFactor = 720;
public static readonly int MinuteFactor = 12;
private static int Factor = 5;

public static void ReSetFactor(int cacheFactor)

{
Factor = cacheFactor;
}
static BoovooCache()

{
HttpContext context = HttpContext.Current;
if(context != null)

{
boovoo_cache = context.Cache;
}
else

{
boovoo_cache = HttpRuntime.Cache;
}
}

// public object this[string key]
// {
// get
// {
// return _cache[key];
// }
// set
// {
// _cache[key]=value;
// }
// }


/**//// <summary>
/// 清空Cache中的项
/// </summary>
public static void Clear()

{
IDictionaryEnumerator CacheEnum = boovoo_cache.GetEnumerator();
while(CacheEnum.MoveNext())

{
boovoo_cache.Remove(CacheEnum.Key.ToString());
}

}
public static void RemoveByPattern(string pattern)

{
IDictionaryEnumerator CacheEnum = boovoo_cache.GetEnumerator();
Regex regex = new Regex(pattern,RegexOptions.IgnoreCase|RegexOptions.Singleline|RegexOptions.Compiled);
while(CacheEnum.MoveNext())

{
if(regex.IsMatch(CacheEnum.Key.ToString()))

{
boovoo_cache.Remove(CacheEnum.Key.ToString());
}
}
}


/**//// <summary>
/// 移除key所指定的Cache项
/// </summary>
/// <param name="key"></param>
public static void Remove(string key)

{
boovoo_cache.Remove(key);
}


/**//// <summary>
/// 将obj加入Cache
/// </summary>
/// <param name="key"></param>
/// <param name="obj"></param>
public static void Insert(string key, object obj)

{
Insert(key,obj,null,1);
}

public static void Insert(string key, object obj, CacheDependency dep)

{
Insert(key,obj,dep,HourFactor * 12);
}

public static void Insert(string key, object obj, int seconds)

{
Insert(key,obj,null,seconds);
}

public static void Insert(string key, object obj, int seconds, CacheItemPriority priority)

{
Insert(key,obj,null,seconds,priority);
}

public static void Insert(string key, object obj, CacheDependency dep, int seconds)

{
Insert(key,obj,dep,seconds,CacheItemPriority.Normal);
}

public static void Insert(string key, object obj, CacheDependency dep, int seconds, CacheItemPriority priority)

{
if(obj != null)

{
boovoo_cache.Insert(key,obj,dep,DateTime.Now.AddSeconds(Factor * seconds), TimeSpan.Zero,priority,null);
}

}

public static void MicroInsert (string key, object obj, int secondFactor)

{
if(obj != null)

{
boovoo_cache.Insert(key,obj,null,DateTime.Now.AddSeconds(Factor * secondFactor), TimeSpan.Zero);
}
}


/**//// <summary>
/// 将obj加入Cache使用最大缓存时间
/// </summary>
/// <param name="key"></param>
/// <param name="obj"></param>
public static void Max(string key, object obj)

{
Max(key,obj,null);
}

public static void Max(string key, object obj, CacheDependency dep)

{
if(obj != null)

{
boovoo_cache.Insert(key,obj,dep,DateTime.MaxValue,TimeSpan.Zero,CacheItemPriority.AboveNormal,null);
}
}

public static object Get(string key)

{
return boovoo_cache[key];
}
}
}
http://xs.tzblog.com/item/cache
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