ProxyCache.cs

using System;
using System.Collections.Generic;

namespace LinFu.DynamicProxy
{
	public class ProxyCache : IProxyCache
	{
		private static readonly Dictionary<ProxyCacheEntry, Type> _cache = new Dictionary<ProxyCacheEntry, Type>();
	    private static readonly object _lock = new object();

		#region IProxyCache Members

		public bool Contains(Type baseType, params Type[] baseInterfaces)
		{
			if (baseType == null)
				return false;

			ProxyCacheEntry entry = new ProxyCacheEntry(baseType, baseInterfaces);
			return _cache.ContainsKey(entry);
		}

		public Type GetProxyType(Type baseType, params Type[] baseInterfaces)
		{
            lock (_lock)
            {
                ProxyCacheEntry entry = new ProxyCacheEntry(baseType, baseInterfaces);
                return _cache[entry];
            }
		}

		public void StoreProxyType(Type result, Type baseType, params Type[] baseInterfaces)
		{
            lock (_lock)
            {
                ProxyCacheEntry entry = new ProxyCacheEntry(baseType, baseInterfaces);
                _cache[entry] = result;
            }
		}

		#endregion
	}
}