using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using WebSystem.Framework.DAO.LevelDB;

namespace LevelDbDemo
{
    class Program
    {
        static DB Database { get; set; }
        static string DatabasePath { get; set; }
        static void Main(string[] args)
        {
            var tempPath = Path.GetTempPath();
            var randName = Path.GetRandomFileName();
            DatabasePath = Path.Combine(tempPath, randName);
            Cache c = new Cache(100 * 1024 * 1024);
            var options = new Options()
            {
                BlockCache = c,
                CreateIfMissing = true,
            };
            Database = new DB(options, "mylevel.db");

            

            //开始时间
            TimeSpan runTime = new TimeSpan(DateTime.Now.Ticks);

            //循环插入 100万 k,v 
            for (int i = 0; i < 1000000; i++)
            {
                Database.Put(i.ToString(), i.ToString() + "A");
            }

            //迭代取所有数据
            //var entries = new List<KeyValuePair<string, string>>();
            //try
            //{
            //    foreach (var entry in Database)
            //    {
            //        entries.Add(entry);
            //    }
            //}
            //catch { }

            //取某一个key 的 值
            string value = Database.Get("123455");  //大约 0.00X 几秒

            //结束时间
            TimeSpan timeNow = new TimeSpan(DateTime.Now.Ticks);
            //时间间隔
            TimeSpan ts = timeNow.Subtract(runTime).Duration();
            Console.WriteLine(" 用时：" + ts.TotalSeconds.ToString() + "秒 " + ts.TotalMilliseconds.ToString() + "毫秒");


        }
    }
}