// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
using System.ServiceModel.Channels;
using System.Collections.Generic;
 
namespace System.ServiceModel.Dispatcher
{
    internal class EndpointDispatcherTable
    {
        private object _thisLock;
        private const int optimizationThreshold = 2;
        private List<EndpointDispatcher> _cachedEndpoints;
 
        public EndpointDispatcherTable(object thisLock)
        {
            _thisLock = thisLock;
        }
 
        private object ThisLock
        {
            get { return _thisLock; }
        }
 
        public void AddEndpoint(EndpointDispatcher endpoint)
        {
            lock (ThisLock)
            {
                int priority = endpoint.FilterPriority;
 
                if (_cachedEndpoints == null)
                {
                    _cachedEndpoints = new List<EndpointDispatcher>(optimizationThreshold);
                }
 
                if (_cachedEndpoints.Count < optimizationThreshold)
                {
                    _cachedEndpoints.Add(endpoint);
                }
            }
        }
 
        public void RemoveEndpoint(EndpointDispatcher endpoint)
        {
            lock (ThisLock)
            {
                if (_cachedEndpoints != null && _cachedEndpoints.Contains(endpoint))
                {
                    _cachedEndpoints.Remove(endpoint);
                }
            }
        }
 
        public EndpointDispatcher Lookup(Message message, out bool addressMatched)
        {
            addressMatched = false;
            return null;
        }
    }
}