//========================================================================
//Copyright 2007-2008 David Yu dyuproject@gmail.com
//------------------------------------------------------------------------
//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.
//========================================================================
package com.dyuproject.demos.todolist.service;
import java.io.IOException;
import javax.servlet.ServletException;
import com.dyuproject.demos.todolist.Constants;
import com.dyuproject.web.CookieSession;
import com.dyuproject.web.rest.RequestContext;
import com.dyuproject.web.rest.WrapperInterceptor;
/**
* @author David Yu
* @created Dec 6, 2008
*/
public class LoginInterceptor extends WrapperInterceptor
{
public boolean preHandle(RequestContext requestContext)
throws ServletException, IOException
{
CookieSession session = getWebContext().getSession(requestContext.getRequest());
if(session!=null && session.getAttribute(Constants.USER)!=null)
return super.preHandle(requestContext);
requestContext.getResponse().setContentType(Constants.TEXT_HTML);
getWebContext().getJSPDispatcher().dispatch("login/index.jsp", requestContext.getRequest(),
requestContext.getResponse());
return false;
}
}