alertinfocontroller.java

来自「Java的框架」· Java 代码 · 共 59 行

package mcaps.core.alert.webapp.controller;

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

import mcap.core.alert.model.Alert;
import mcap.core.alert.service.AlertManager;
import mcap.core.alert.util.NameConstants;

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


/**
 * This class handles the request to retrieve a alert from the data
 * source.
 * 
 * @author Tan Beng Suang
 * @date 08-Sep-2005
 * @version 1.0.1.0
 */
public class AlertInfoController implements Controller {

	private AlertManager alertManager;
	
	/**
	 * Sets the alertManager.
	 * @param alertManager The alertManager to set.
	 */
	public void setAlertManager (AlertManager alertManager) {
		this.alertManager = alertManager;
	}
	
	
	/* (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 {
		
		String id = request.getParameter ("id");
		String username = request.getRemoteUser();
		
		Alert alert = this.alertManager.getAlert(id);
		
		if (alert == null) {
			throw new Exception ("Alert not found.");
		}
		
		if (!alert.getCreator().equals(username) && !request.isUserInRole(NameConstants.ALERT_ADMIN_ROLE)) {
			response.sendError (HttpServletResponse.SC_FORBIDDEN);
			return null;
		}
		
		return new ModelAndView ("core/alert/alertInfo", NameConstants.ALERT, alert);
	}

}