Personal project framework construction and project framework construction
1. cache Interface
using System;using System.Collections.Generic;using System.Runtime.Caching;using System.Text.RegularExpressions;namespace EnterpriseFrame.Core.Caching{ /// <summary> /// Represents a manager for caching between HTTP requests (long term caching) /// </summary> public partial class MemoryCacheManager : ICacheManager { protected ObjectCache Cache { get { return MemoryCache.Default; } } /// <summary> /// Gets or sets the value associated with the specified key. /// </summary> /// <typeparam name="T">Type</typeparam> /// <param name="key">The key of the value to get.</param> /// <returns>The value associated with the specified key.</returns> public virtual T Get<T>(string key) { return (T)Cache[key]; } /// <summary> /// Adds the specified key and object to the cache. /// </summary> /// <param name="key">key</param> /// <param name="data">Data</param> /// <param name="cacheTime">Cache time</param> public virtual void Set(string key, object data, int cacheTime) { if (data == null) return; var policy = new CacheItemPolicy(); policy.AbsoluteExpiration = DateTime.Now + TimeSpan.FromMinutes(cacheTime); Cache.Add(new CacheItem(key, data), policy); } /// <summary> /// Gets a value indicating whether the value associated with the specified key is cached /// </summary> /// <param name="key">key</param> /// <returns>Result</returns> public virtual bool IsSet(string key) { return (Cache.Contains(key)); } /// <summary> /// Removes the value with the specified key from the cache /// </summary> /// <param name="key">/key</param> public virtual void Remove(string key) { Cache.Remove(key); } /// <summary> /// Removes items by pattern /// </summary> /// <param name="pattern">pattern</param> public virtual void RemoveByPattern(string pattern) { var regex = new Regex(pattern, RegexOptions.Singleline | RegexOptions.Compiled | RegexOptions.IgnoreCase); var keysToRemove = new List<String>(); foreach (var item in Cache) if (regex.IsMatch(item.Key)) keysToRemove.Add(item.Key); foreach (string key in keysToRemove) { Remove(key); } } /// <summary> /// Clear all cache data /// </summary> public virtual void Clear() { foreach (var item in Cache) Remove(item.Key); } }}
2. Expansion
Using System; namespace using iseframe. core. caching {/// <summary> /// Extensions // </summary> public static class CacheExtensions {/// <summary> /// obtain the cache, if the acquire result does not exist, it is saved to the cache, the default time is 60 Minutes. // </summary> // <typeparam name = "T"> Type </typeparam> // <param name = "cacheManager"> Cache manager </param> /// <param name = "key"> Cache key </param> /// <param name = "acquire"> Function to load item if it's not in the cache yet </param> // <returns> Cached item </returns> public static T Get <T> (this ICacheManager cacheManager, string key, Func <T> acquire) {return Get (cacheManager, key, 60, acquire) ;}/// <summary> /// obtain the cache. If no cache exists, load and cache the execution result. /// </summary> /// <typeparam name = "T"> cache type </typeparam> /// <param name =" cacheManager "> Cache manager </param> /// <param name =" key "> Cache key </param> /// <param name =" cacheTime "> the Cache time is 0 minutes-do not cache </param> /// <param name = "acquire"> if no cache exists, execute this expression to set the cache </param> /// <returns> Cached item </returns> public static T Get <T> (this ICacheManager cacheManager, string key, int cacheTime, Func <T> acquire) {if (cacheManager. isSet (key) {return cacheManager. get <T> (key) ;}else {var result = acquire (); if (cacheTime> 0) cacheManager. set (key, result, cacheTime); return result ;}}}}
3. MemoryCacheManager implementation
using System;using System.Collections.Generic;using System.Runtime.Caching;using System.Text.RegularExpressions;namespace EnterpriseFrame.Core.Caching{ /// <summary> /// Represents a manager for caching between HTTP requests (long term caching) /// </summary> public partial class MemoryCacheManager : ICacheManager { protected ObjectCache Cache { get { return MemoryCache.Default; } } /// <summary> /// Gets or sets the value associated with the specified key. /// </summary> /// <typeparam name="T">Type</typeparam> /// <param name="key">The key of the value to get.</param> /// <returns>The value associated with the specified key.</returns> public virtual T Get<T>(string key) { return (T)Cache[key]; } /// <summary> /// Adds the specified key and object to the cache. /// </summary> /// <param name="key">key</param> /// <param name="data">Data</param> /// <param name="cacheTime">Cache time</param> public virtual void Set(string key, object data, int cacheTime) { if (data == null) return; var policy = new CacheItemPolicy(); policy.AbsoluteExpiration = DateTime.Now + TimeSpan.FromMinutes(cacheTime); Cache.Add(new CacheItem(key, data), policy); } /// <summary> /// Gets a value indicating whether the value associated with the specified key is cached /// </summary> /// <param name="key">key</param> /// <returns>Result</returns> public virtual bool IsSet(string key) { return (Cache.Contains(key)); } /// <summary> /// Removes the value with the specified key from the cache /// </summary> /// <param name="key">/key</param> public virtual void Remove(string key) { Cache.Remove(key); } /// <summary> /// Removes items by pattern /// </summary> /// <param name="pattern">pattern</param> public virtual void RemoveByPattern(string pattern) { var regex = new Regex(pattern, RegexOptions.Singleline | RegexOptions.Compiled | RegexOptions.IgnoreCase); var keysToRemove = new List<String>(); foreach (var item in Cache) if (regex.IsMatch(item.Key)) keysToRemove.Add(item.Key); foreach (string key in keysToRemove) { Remove(key); } } /// <summary> /// Clear all cache data /// </summary> public virtual void Clear() { foreach (var item in Cache) Remove(item.Key); } }}
From: NopCommerce framework (http://nopcommerce.codeplex.com /)