/*
 * 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.dao;

import java.util.List;

import com.alibaba.cobar.manager.dataobject.cobarnode.CommandStatus;
import com.alibaba.cobar.manager.dataobject.cobarnode.ConnectionStatus;
import com.alibaba.cobar.manager.dataobject.cobarnode.DataNodesStatus;
import com.alibaba.cobar.manager.dataobject.cobarnode.DataSources;
import com.alibaba.cobar.manager.dataobject.cobarnode.ProcessorStatus;
import com.alibaba.cobar.manager.dataobject.cobarnode.ServerStatus;
import com.alibaba.cobar.manager.dataobject.cobarnode.ThreadPoolStatus;
import com.alibaba.cobar.manager.dataobject.cobarnode.TimeStamp;
import com.alibaba.cobar.manager.util.Pair;

/**
 * (created at 2010-7-26)
 * 
 * @author <a href="mailto:shuo.qius@alibaba-inc.com">QIU Shuo</a>
 * @author haiqing.zhuhq 2011-9-1
 */
public interface CobarAdapterDAO {

    /**
     * @return true if success. never throw Exception
     */
    boolean setCobarStatus(boolean status);

    TimeStamp getCurrentTime(); //show @@time.current

    TimeStamp getStartUpTime(); //show @@time.startup

    String getVersion(); //show @@version;

    ServerStatus getServerStatus(); // show @@server;

    List<ProcessorStatus> listProccessorStatus(); // show @@processor

    List<ThreadPoolStatus> listThreadPoolStatus(); // show @@threadpool

    List<String> listDataBases(); //show @@databases

    List<DataNodesStatus> listDataNodes(); // show @@dataNodes

    List<DataSources> listDataSources(); // show @@dataSources

    List<ConnectionStatus> listConnectionStatus(); // show @@connection

    List<CommandStatus> listCommandStatus(); // show @@command

    Pair<Long, Long> getCurrentTimeMillis();

    int switchDataNode(String datanodes, int index); //switch @@datasource datanodes:index

    int stopHeartbeat(String datanodes, int hour_time); //stop @@heartbeat datanodes:hour_time*3600

    int killConnection(long id); //kill @@connection id

    boolean reloadConfig();// reload @@config

    boolean rollbackConfig();// rollback @@config

    boolean checkConnection(); //use show @@version to check cobar connection

}