constant.java

与postgresql数据库结合的数据库水印软件包

/*
 * 
 * Copyright 2003,2004 The Watermill Team
 *
 * This file is part of Watermill.
 *
 *    Watermill is free software; you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation; either version 2 of the License, or
 *    (at your option) any later version.
 *
 *    Watermill is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with Watermill; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */
package Watermill.kernel;
import Watermill.kernel.*;
import java.util.*;
import java.io.*;

public class Constant {
    public static String configurationFileName="watermill.conf";
    public static boolean eraseBenchmarkData=true; // true if install and uninstall affect ForestCover benchmark data
    public static String masterDBname;
    public static String masterDBuser;
    public static String masterDBpassword;
    public static int secretKey;
    public static String poolTableName="pool";
    public static String usersTableName="client";
    public static String broadCastTableName="broadcast";
    public static int port;

    public static void load(){
	Msg.println("Loading configuration");
	String configurationFileFullName = System.getProperty("user.home")+"/"+configurationFileName;
	try{
	    Properties p=new Properties();
	    p.load(new FileInputStream(configurationFileFullName));
	    secretKey = Integer.parseInt(p.getProperty("secretKey"));
	    masterDBname=p.getProperty("masterDBname");
	    masterDBuser=p.getProperty("masterDBuser");
	    masterDBpassword=p.getProperty("masterDBpassword");
	    port=Integer.parseInt(p.getProperty("port"));
	    
	    
	    
	}catch (FileNotFoundException e){
	    Msg.println("Please fill in the watermill.conf file in your home directory with the master database name(which holds any watermarking information), master user name and password.");
	try {
	PrintWriter f = new PrintWriter(new BufferedWriter(new FileWriter(configurationFileFullName)));
	f.println("secretKey=<any character list, secret key for the data owner>"); 
	f.println("masterDBname=< master database user name(which holds any watermarking info.>");
	f.println("masterDBuser=<master database user>");
	f.println("masterDBpassword=<master database password>");
	f.close();
	System.exit(-1);}
	catch (Exception e2){
	Msg.fatal(e2);
	}
	}
	catch (Exception e){
	    Msg.fatal(e);
	}
    }
    static {
	load();
    }
}