50 lines
1.3 KiB
C#
50 lines
1.3 KiB
C#
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text.RegularExpressions;
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using System.Web;
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namespace Umbraco.Core.Cache
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{
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/// <summary>
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/// A cache provider that caches items in the HttpContext.Items
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/// </summary>
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internal class HttpRequestCacheProvider : DictionaryCacheProdiverBase
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{
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private readonly Func<HttpContextBase> _context;
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public HttpRequestCacheProvider(HttpContext context)
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{
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_context = () => new HttpContextWrapper(context);
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}
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public HttpRequestCacheProvider(Func<HttpContextBase> context)
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{
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_context = context;
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}
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protected override DictionaryCacheWrapper DictionaryCache
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{
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get
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{
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var ctx = _context();
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return new DictionaryCacheWrapper(
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ctx.Items,
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o => ctx.Items[o],
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o => ctx.Items.Remove(o));
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}
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}
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public override T GetCacheItem<T>(string cacheKey, Func<T> getCacheItem)
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{
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var ctx = _context();
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var ck = GetCacheKey(cacheKey);
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if (ctx.Items[ck] == null)
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{
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ctx.Items[ck] = getCacheItem();
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}
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return (T)ctx.Items[ck];
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}
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}
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}
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