?? lobbyaction.java
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/*
* Copyright 2005 Frank W. Zammetti
*
* 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 org.apache.struts.apps.ajaxchat.action;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.apps.ajaxchat.actionform.LobbyActionForm;
import org.apache.struts.apps.ajaxchat.dao.AjaxChatDAO;
/**
* This is a Struts Action that shows the lobby screen. Note that it is called
* as a result of a user logging in, as well as continually via AJAX while the
* user is in the lobby to update the room statistics (i.e, how many users are
* chatting in each room).
*
* @author <a href="mailto:frank.zammetti@pfpc.com">Frank W. Zammetti</a>.
*/
public class LobbyAction extends Action {
/**
* Log instance.
*/
private static Log log = LogFactory.getLog(LobbyAction.class);
/**
* Execute.
*
* @param mapping ActionMapping.
* @param inForm ActionForm.
* @param request HttpServletRequest.
* @param response HttpServletResponse.
* @return ActionForward.
* @throws Exception If anything goes wrong.
*/
public ActionForward execute(ActionMapping mapping, ActionForm inForm,
HttpServletRequest request, HttpServletResponse response) throws Exception {
log.debug("execute()...");
HttpSession session = request.getSession();
synchronized (session) {
// Get the list of rooms and add it to the ActionForm.
AjaxChatDAO dao = AjaxChatDAO.getInstance();
LobbyActionForm form = (LobbyActionForm)inForm;
form.setRooms(dao.getRoomList());
return mapping.findForward("showLobby");
}
} // End execute().
} // End class.
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