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package com.github.javaclub.cdl.client.util;

/**
 *  主备访问动态切换, 如强一致性数据访问主库
 */
public class MasterSlaveSwitch {

    private  static ThreadLocal dsKey = new ThreadLocal<>();

    public static void setMaster(){
        dsKey.set("master");
    }

    public static void setSlave(){
        dsKey.set("slave");
    }

    public static void clear(){
        dsKey.remove();
    }

    public static boolean isMaster(){
        String key = dsKey.get();
        if(key != null && "master".equals(key)){
            return true;
        }
        return false;
    }

    public static boolean isSlave(){
        String key = dsKey.get();
        if(key != null && "slave".equals(key)){
            return true;
        }
        return false;
    }
}