/* $Id: LogoutAction.java,v 1.9 2005/08/26 04:45:09 ysahara Exp $
*
* Copyright (c)ARGO 21, Corporation. 2005.  All rights reserved.
 * 
 * This file is part of Nautica Workflow.
 * 
 *  Nautica Workflow is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 * 
 *  Nautica Workflow is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 * 
 *  You should have received a copy of the GNU General Public License
 *  along with Nautica Workflow; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *  
*/
package jp.co.argo21.nautica.workflow.sample.action;

import java.rmi.RemoteException;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.xml.rpc.ServiceException;

import jp.co.argo21.nautica.workflow.sample.actionform.UserBean;
import jp.co.argo21.nautica.workflow.sample.util.Constants;
import jp.co.argo21.nautica.workflow.sample.util.SingletonServices;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

/**
 * ログアウトのリンク押下時の処理を行うアクションクラス。
 * 
 * @author  ruchida(Argo 21, Corp.)
 * @version $Revision: 1.9 $
 * @since   Nautica Workflow 0.9
 */
public class LogoutAction extends Action {
    
    /**
     * ログアウト処理を行う。
	 * 
	 * @param mapping アクションマッピング
	 * @param form アクションフォーム
	 * @param request リクエスト
	 * @param response レスポンス
	 * @return ActionForward アクションフォワード
	 */
	public ActionForward execute(
            ActionMapping mapping,
            ActionForm form,
            HttpServletRequest request,
            HttpServletResponse response) 
    {
        
        // セッションからユーザを取得
        UserBean userBean =(UserBean) request.getSession().getAttribute("user");
        String sessionID = userBean.getSessionID();
        
        try {
            // エンジンから切断
            SingletonServices.getInstance().getWfConnection().disconnect(sessionID);
            
            // セッション無効化
            request.getSession().invalidate();
            
            // ログアウト完了画面へ遷移
            return mapping.findForward(Constants.SUCCESS);
            
        } catch (ServiceException e) {
            // セッション無効化
            request.getSession().invalidate();
            // 致命的エラー (エンジンへの接続に失敗)
            request.setAttribute("errMsg", e.toString());
            request.setAttribute("err", e.getStackTrace());
            return mapping.findForward(Constants.FATAL_ERROR);
        } catch (RemoteException e) {
            // セッション無効化
            request.getSession().invalidate();
            // 致命的エラー (エンジンへの接続に失敗)
            request.setAttribute("errMsg", e.toString());
            request.setAttribute("err", e.getStackTrace());
            return mapping.findForward(Constants.FATAL_ERROR);
        }
    }
}