import?java.io.BufferedReader;
import?java.io.FileNotFoundException;
import?java.io.FileReader;
import?java.io.IOException;
import?java.util.HashMap;
import?java.util.Map;

import?BufferManagerment.BMgr;
import?BufferManagerment.Buffer;
import?DiskManagerment.DSMgr;



public?class?Database?{

	private?BMgr?bMgr?=?new?BMgr（）;
	private?DSMgr?dsMgr?=?new?DSMgr（）;

	public?static?long?time?=?0;

	public?static?Map?map?=?new?HashMap（）;


	public?void?read（Integer?pageNUM?String?mode）?throws?IOException?{
		bMgr.FindPage（pageNUM?mode?map）;
	}


	public?void?write（Integer?pageNUM?String?mode）?throws?IOException?{
		bMgr.FindPage（pageNUM?mode?map）;
	}

	public?void?run（）?{
		String?str?=?null;
		String[]?s?=?null;
		String?mode?=?null;
		Integer?pageNUM?=?null;
		int?i?=?0;
		try?{
			dsMgr.OpenFile（“E:\\lab2\\data.dbf“）;
			map.put（“input“?new?Integer（1））;
			map.put（“output“?new?Integer（1））;
			map.put（“suit“?new?Integer（1））;
			BufferedReader?br?=?new?BufferedReader（new?FileReader（
					“E:\\lab2\\data-5w-50w-zipf.txt“））;
			while?（（str?=?br.readLine（））?!=?null）?{
				s?=?str.split（““）;
				mode?=?s[0];
				pageNUM?=?Integer.parseInt（s[1]）;
				if?（s[0].equals（“0“））?{
					read（pageNUM?s[0]）;
				}?else?{
					write（pageNUM?s[0]）;
				}
				i++;
				System.out.println（i）;
			}
			bMgr.WriteDirtys（map）;
		}?catch?（FileNotFoundException?e）?{
			//?TODO?Auto-generated?catch?block
			e.printStackTrace（）;
		}?catch?（IOException?e）?{
			//?TODO?Auto-generated?catch?block
			e.printStackTrace（）;
		}?finally?{
			try?{
				dsMgr.CloseFile（）;
			}?catch?（IOException?e）?{
				//?TODO?Auto-generated?catch?block
				e.printStackTrace（）;
			}
		}
	}

	public?static?void?main（String[]?args）?{
		Database?Db?=?new?Database（）;
		long?start_time?=?System.currentTimeMillis（）;
		Db.run（）;
		long?end_time?=?System.currentTimeMillis（）;
		time?=?end_time?-?start_time;
		System.out.println（“DEFBUFSIZE大小“?+Buffer.BUFFSIZE）;
		System.out.println（“程序運行總時間:“?+?time）;
		System.out.println（“讀次數:“?+?map.get（“input“））;
		System.out.println（“寫次數:“?+?map.get（“output“））;
		System.out.println（“命中次數“+map.get（“suit“））;
		double?rate=map.get（“suit“）*1.0/（map.get（“input“）+map.get（“output“））;
		System.out.println（“命中率“+rate）;
	}

}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2015-06-27?17:09??Database\
?????文件?????????232??2013-10-24?19:25??Database\.classpath
?????文件?????????384??2013-10-24?19:25??Database\.project
?????目錄???????????0??2015-06-27?17:09??Database\bin\
?????目錄???????????0??2015-06-27?17:09??Database\bin\BufferManagerment\
?????文件????????5748??2015-07-07?15:28??Database\bin\BufferManagerment\BMgr.class
?????文件?????????554??2015-06-27?17:09??Database\bin\BufferManagerment\BMgrInterface.class
?????文件?????????474??2015-07-07?13:36??Database\bin\BufferManagerment\Buffer.class
?????文件????????1505??2015-06-27?17:09??Database\bin\BufferManagerment\BufferBean.class
?????文件?????????422??2015-06-27?17:09??Database\bin\BufferManagerment\frame.class
?????文件????????4121??2015-07-07?13:50??Database\bin\Database.class
?????目錄???????????0??2015-06-27?17:09??Database\bin\DbfManagerment\
?????文件????????1835??2015-07-07?11:26??Database\bin\DbfManagerment\DBFfilegenerate.class
?????目錄???????????0??2015-06-27?17:09??Database\bin\DiskManagerment\
?????文件????????2446??2015-07-07?14:49??Database\bin\DiskManagerment\DSMgr.class
?????目錄???????????0??2015-06-27?17:09??Database\src\
?????目錄???????????0??2015-06-27?17:09??Database\src\BufferManagerment\
?????文件????????5704??2015-07-07?15:28??Database\src\BufferManagerment\BMgr.java
?????文件?????????972??2013-11-23?20:13??Database\src\BufferManagerment\BMgrInterface.java
?????文件?????????213??2015-07-07?13:36??Database\src\BufferManagerment\Buffer.java
?????文件?????????956??2013-11-23?20:13??Database\src\BufferManagerment\BufferBean.java
?????文件?????????220??2013-11-23?20:20??Database\src\BufferManagerment\frame.java
?????文件????????2389??2015-07-07?13:50??Database\src\Database.java
?????目錄???????????0??2015-06-27?17:09??Database\src\DbfManagerment\
?????文件????????1014??2015-07-07?11:26??Database\src\DbfManagerment\DBFfilegenerate.java
?????目錄???????????0??2015-06-27?17:09??Database\src\DiskManagerment\
?????文件????????1987??2015-07-07?14:49??Database\src\DiskManagerment\DSMgr.java