using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;

namespace IStation
{
    internal sealed partial class SharedMemoryCache
    {
        /// <summary>
        /// Iterate though all keys 
        /// </summary>
        /// <returns></returns>
        public List<string> GetKeys()
        {
            const BindingFlags flags = BindingFlags.Instance | BindingFlags.NonPublic;
            var entries = _memoryCache.GetType().GetField("_entries", flags).GetValue(_memoryCache);
            var cacheItems = entries as IDictionary;
            var keys = new List<string>();
            if (cacheItems == null)
                return keys;
            foreach (DictionaryEntry cacheItem in cacheItems)
            {
                keys.Add(cacheItem.Key.ToString());
            }
            return keys;
        }


    }
}