activeuserlistcontroller.java

来自「Java的框架」· Java 代码 · 共 71 行

package mcaps.core.user.webapp.controller;

import java.util.List;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.Set;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import mcap.core.user.model.User;
import mcap.core.user.service.UserManager;
import mcap.core.user.util.NameConstants;

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;


/**
 * @author Tan Beng Suang
 * @date 12-Sep-2005
 * @version 1.0.1.0
 */
public class ActiveUserListController implements Controller {

	private UserManager userManager = null;
	
	/**
	 * Returns the userManager.
	 * @return UserManager
	 */
	public UserManager getUserManager () {
		return userManager;
	}
	
	/**
	 * Sets the userManager.
	 * @param userManager The userManager to set.
	 */
	public void setUserManager (UserManager userManager) {
		this.userManager = userManager;
	}

	/* (non-Javadoc)
	 * @see org.springframework.web.servlet.mvc.Controller#handleRequest(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
	 */
	public ModelAndView handleRequest (HttpServletRequest request,
			HttpServletResponse response) throws Exception {

		HttpSession session = request.getSession();
		ServletContext context = session.getServletContext();
		
		Set userSet = (Set) context.getAttribute (NameConstants.USERS_KEY);
		
		List result = new ArrayList ();
		if (userSet != null) {
			Iterator itr = userSet.iterator();
		
			while (itr.hasNext()) {
				User user = this.userManager.getUser((String) itr.next());
				if (user != null)
					result.add (user);
			}
		}
		return new ModelAndView ("core/user/activeUserList", NameConstants.USER_LIST, result);
	}

}