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tidusjar 2016-03-03 10:26:16 +00:00
parent 4ce66195d4
commit d1827cd3be
117 changed files with 16 additions and 16 deletions
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105
PlexRequest.Helpers/MemoryCacheProvider.cs
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@ -1,105 +0,0 @@
#region Copyright
// /************************************************************************
// Copyright (c) 2016 Jamie Rees
// File: MemoryCacheProvider.cs
// Created By: Jamie Rees
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
// ************************************************************************/
#endregion
using System;
using System.Linq;
using System.Runtime.Caching;
namespace PlexRequests.Helpers
{
public class MemoryCacheProvider : ICacheProvider
{
private ObjectCache Cache => MemoryCache.Default;
/// <summary>
/// Gets the item from the cache, if the item is not present
/// then we will get that item and store it in the cache.
/// </summary>
/// <typeparam name="T">Type to store in the cache.</typeparam>
/// <param name="key">The key.</param>
/// <param name="itemCallback">The item callback. This will be called if the item is not present in the cache.
/// </param>
/// <param name="cacheTime">The amount of time we want to cache the object.</param>
/// <returns>A copy of the cached object.</returns>
/// <remarks>If the <c><![CDATA[Func<T>]]> itemCallback</c> is null and the item is not in the cache it will throw a <see cref="NullReferenceException"/>.
/// <para>If you do not want to change the object in the cache (since it's a copy returned and not a reference) you will need to <see cref="Remove"/>
/// the cached item and then <see cref="Set"/> it, or just call this method.</para></remarks>
public T GetOrSet<T>(string key, Func<T> itemCallback, int cacheTime = 20) where T : class
{
var item = Get<T>(key);
if (item == null)
{
item = itemCallback();
if (item != null)
{
Set(key, item, cacheTime);
}
}
// Return a copy, not the stored cache reference
// The cached object will not change
// If we
return item.CloneJson();
}
/// <summary>
/// Gets the specified item from the cache.
/// </summary>
/// <typeparam name="T">Type to get from the cache</typeparam>
/// <param name="key">The key.</param>
/// <returns></returns>
public T Get<T>(string key) where T : class
{
var item = Cache.Get(key) as T;
return item;
}
/// <summary>
/// Set/Store the specified object in the cache
/// </summary>
/// <param name="key">The key.</param>
/// <param name="data">The object we want to store.</param>
/// <param name="cacheTime">The amount of time we want to cache the object.</param>
public void Set(string key, object data, int cacheTime)
{
var policy = new CacheItemPolicy { AbsoluteExpiration = DateTime.Now + TimeSpan.FromMinutes(cacheTime) };
Cache.Add(new CacheItem(key, data), policy);
}
/// <summary>
/// Removes the specified object from the cache.
/// </summary>
/// <param name="key">The key.</param>
public void Remove(string key)
{
var keys = Cache.Where(x => x.Key.Contains(key));
foreach (var k in keys)
{
Cache.Remove(k.Key);
}
}
}
}