#region Copyright
/*
 * Copyright 2005-2015 the Seasar Foundation and the Others.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
#endregion

using System;
using System.Web;
using Seasar.Framework.Container.Factory;

namespace Seasar.Framework.Container.Web
{
    public class S2HttpModule : IHttpModule
    {
        #region IHttpModule メンバ

        public void Init(HttpApplication context)
        {
            context.AcquireRequestState += new EventHandler(context_AcquireRequestState);
            context.ReleaseRequestState += new EventHandler(context_ReleaseRequestState);
        }

        public void Dispose()
        {
        }

        #endregion

        private void context_AcquireRequestState(object sender, EventArgs e)
        {
            HttpApplication ha = (HttpApplication) sender;
            IHttpHandler handler = ha.Context.Handler;

            IS2Container container = SingletonS2ContainerFactory.Container;
            container.HttpContext = HttpContext.Current;
            string componentName = ha.Request.Path;
            if (container.HasComponentDef(componentName))
            {
                container.InjectDependency(handler, componentName);
            }
        }

        private void context_ReleaseRequestState(object sender, EventArgs e)
        {
            IS2Container container = SingletonS2ContainerFactory.Container;
            container.HttpContext = null;
        }
    }
}