StatusInterceptor.java

package net.tooan.ynpay.wechat.webapp.interceptor;

import net.tooan.ynpay.commons.YnpayJndiConstants;
import net.tooan.ynpay.third.jfinal.aop.Interceptor;
import net.tooan.ynpay.third.jfinal.core.ActionInvocation;
import net.tooan.ynpay.third.jfinal.core.Controller;
import net.tooan.ynpay.third.jfinal.ext.interceptor.ejb.EJBManager;
import net.tooan.ynpay.third.jfinal.ext.interceptor.ejb.RemoteEJB;
import net.tooan.ynpay.third.jfinal.log.Logger;
import net.tooan.ynpay.wechat.agent.WechatConstants;
import net.tooan.ynpay.wechat.agent.facade.WechatFacade;
import net.tooan.ynpay.wechat.agent.model.Msg;
import net.tooan.ynpay.wechat.agent.model.Server;
import org.apache.commons.lang.StringUtils;

/**
 * Created with IntelliJ IDEA.
 * User: Jing
 * Date: 13-10-23
 * Time: 下午1:23
 */
public class StatusInterceptor implements Interceptor {
    private static final Logger logger = Logger.getLogger(StatusInterceptor.class);

    @RemoteEJB(mappedName = YnpayJndiConstants.Mongo_Wechat_Facade_Remote)
    private WechatFacade facade;

    public StatusInterceptor() {
        super();
        EJBManager.manager.setEJB(this);
    }

    @Override
    public void intercept(ActionInvocation ai) {
        Controller controller = ai.getController();
        try {
            String name = StringUtils.substring(ai.getControllerKey(), "/server/".length());
            Server server = facade.getServer(name);
            switch (server.getStatus()) {
                case 1: // 正常
                    ai.invoke();
                    break;
                case 0:  // 维护
                    Msg msg = facade.getCustomMsg(WechatConstants.CUSTOM_UPGRADE);
                    controller.setAttr("msg", msg);
                    controller.render("/reply/" + msg.getType() + ".html|xml");
                    break;
                default:  // 异常
                    controller.renderNull();
                    break;
            }
            ai.invoke();
        } catch (Exception e) {
            if (logger.isErrorEnabled()) {
                logger.error(e.getMessage(), e);
            }
            controller.renderNull();
        }
    }
}