/*
 * *****************************************************
 * Copyright (c) 2005 IIM Lab. All  Rights Reserved.
 * Created by xuehao at Dec 22, 2005
 * Contact: zxuehao@mail.ustc.edu.cn
 * *****************************************************
 */
package org.indigo.db.fieldchecker;

/**
 * 檢查一個URL是否合法。
 * @author wbz
 *
 */
public class UrlCheck
{
    private static UrlCheck itsInstance = new UrlCheck();
    private UrlCheck()
    {
        
    }
    public static UrlCheck getInstance()
    {
        return itsInstance;
    }
    public boolean check( String str )
    {
        str = str.trim();
        boolean flag=true;
        if( !str.startsWith("www") || str.length()>50 || str.length()<0 )
            flag = false;
        
//        return flag;
        return true;
    }
}