CacheExtensions.cs

using System;
using Newtonsoft.Json;
using StackExchange.Redis;

namespace RedisCache
{
	public static class CacheExtensions
	{
		public static T Get<T>(this IDatabase cache, string key)
		{
			return Deserialize<T>(cache.StringGet(string.Format("{0}-{1}", typeof(T).Name, key)));
		}

		public static object Get(this IDatabase cache, string key)
		{
			return Deserialize<object>(cache.StringGet(key));
		}

		public static void Set(this IDatabase cache, string key, object value)
		{
			cache.StringSet(key, Serialize(value));
		}

		public static void Set(this IDatabase cache, string key, object value, TimeSpan expiration)
		{
			cache.StringSet(key, Serialize(value), expiration);
		}

		public static void Set<T>(this IDatabase cache, string key, T value)
		{
			cache.StringSet(string.Format("{0}-{1}", typeof(T).Name, key), Serialize(value));
		}

		public static void Set<T>(this IDatabase cache, string key, T value, TimeSpan expiration)
		{
			cache.StringSet(string.Format("{0}-{1}", typeof(T).Name, key), Serialize(value), expiration);
		}

		static string Serialize<T>(T o)
		{
			if (o == null)
			{
				return null;
			}

			return JsonConvert.SerializeObject(o);
		}

		static T Deserialize<T>(string objectString)
		{
			if (string.IsNullOrWhiteSpace(objectString))
			{
				return default(T);
			}

			return JsonConvert.DeserializeObject<T>(objectString);
		}
	}
}