/*
 * Copyright 1999-2012 Alibaba Group.
 *  
 * 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 com.alibaba.cobar.manager.web.action;

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

import org.springframework.beans.factory.InitializingBean;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.AbstractController;

import com.alibaba.cobar.manager.dao.CobarAdapterDAO;
import com.alibaba.cobar.manager.dataobject.xml.CobarDO;
import com.alibaba.cobar.manager.dataobject.xml.UserDO;
import com.alibaba.cobar.manager.service.CobarAccesser;
import com.alibaba.cobar.manager.service.XmlAccesser;
import com.alibaba.cobar.manager.util.ConstantDefine;

/**
 * @author haiqing.zhuhq 2011-6-27
 */
public class KillConnection extends AbstractController implements InitializingBean {
    private XmlAccesser xmlAccesser;
    private CobarAccesser cobarAccesser;

    public void setXmlAccesser(XmlAccesser xmlAccesser) {
        this.xmlAccesser = xmlAccesser;
    }

    public void setCobarAccesser(CobarAccesser cobarAccesser) {
        this.cobarAccesser = cobarAccesser;
    }

    @Override
    public void afterPropertiesSet() throws Exception {
        if (xmlAccesser == null) {
            throw new IllegalArgumentException("property 'xmlAccesser' is null!");
        }
        if (null == cobarAccesser) {
            throw new IllegalArgumentException("property 'cobarAccesser' is null!");
        }
    }

    @Override
    protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response)
            throws Exception {
        UserDO user = (UserDO) request.getSession().getAttribute("user");

        long cobarId = Long.parseLong(request.getParameter("cobarId"));
        long connecId = Long.parseLong(request.getParameter("connectionId"));
        CobarDO cobar = xmlAccesser.getCobarDAO().getCobarById(cobarId);
        if (logger.isWarnEnabled()) {
            logger.warn(new StringBuilder().append(user.getUsername())
                                           .append(" | kill connection | cobar: ")
                                           .append(cobar.getName())
                                           .append(" | connection_id:")
                                           .append(connecId)
                                           .toString());
        }
        if (!cobar.getStatus().equals(ConstantDefine.ACTIVE)) {
            return new ModelAndView("c_failure", "reason", "cobar is inActive");
        }
        CobarAdapterDAO control = cobarAccesser.getAccesser(cobarId);
        if (control.checkConnection()) {
            control.killConnection(connecId);
            return new ModelAndView("c_success", "info", "success !");
        }
        return new ModelAndView("c_failure", "reason", "connect to cobar fail!");
    }

}