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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Tango.FSE.BL
{
/// <summary>
/// Represents an in-memory global cache manager.
/// </summary>
public class MemoryCacheManager
{
private Dictionary<String, IMemoryCacheDictionary> _cacheDictionaries;
private static MemoryCacheManager _instance;
/// <summary>
/// Gets the default singleton instance.
/// </summary>
public static MemoryCacheManager Default
{
get
{
if (_instance == null)
{
_instance = new MemoryCacheManager();
}
return _instance;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="MemoryCacheManager"/> class.
/// </summary>
public MemoryCacheManager()
{
_cacheDictionaries = new Dictionary<String, IMemoryCacheDictionary>();
}
/// <summary>
/// Gets the specified <see cref="MemoryCacheDictionary{T}"/> or creates and return a new one.
/// </summary>
/// <typeparam name="TValue"></typeparam>
/// <param name="name">The name.</param>
/// <returns></returns>
public MemoryCacheDictionary<TKey, TValue> GetOrCreateCache<TKey, TValue>(String name) where TValue : class
{
if (_cacheDictionaries.ContainsKey(name))
{
return _cacheDictionaries[name] as MemoryCacheDictionary<TKey, TValue>;
}
else
{
var cacheDictionary = new MemoryCacheDictionary<TKey, TValue>(name);
_cacheDictionaries[name] = cacheDictionary;
return cacheDictionary;
}
}
/// <summary>
/// Gets the specified <see cref="MemoryCacheDoubleKeyDictionary{T}"/> or creates and return a new one.
/// </summary>
/// <typeparam name="TValue"></typeparam>
/// <param name="name">The name.</param>
/// <returns></returns>
public MemoryCacheDoubleKeyDictionary<TKey1, TKey2, TValue> GetOrCreateCache<TKey1, TKey2, TValue>(String name) where TValue : class
{
if (_cacheDictionaries.ContainsKey(name))
{
return _cacheDictionaries[name] as MemoryCacheDoubleKeyDictionary<TKey1, TKey2, TValue>;
}
else
{
var cacheDictionary = new MemoryCacheDoubleKeyDictionary<TKey1, TKey2, TValue>(name);
_cacheDictionaries[name] = cacheDictionary;
return cacheDictionary;
}
}
/// <summary>
/// Clears all <see cref="IMemoryCacheDictionary"/> stored by this manager.
/// </summary>
public void ClearAll()
{
foreach (var cacheDictionary in _cacheDictionaries)
{
cacheDictionary.Value.Clear();
}
}
}
}
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