LoginCreator.java

package com.idega.core.accesscontrol.business;

import com.idega.core.accesscontrol.data.LoginTable;
import com.idega.data.EntityFinder;
import java.util.StringTokenizer;
import java.lang.StringBuffer;
import java.util.List;

/**
 * Title:        LoginCreator
 * Description:
 * Copyright:    Copyright (c) 2000-2001 idega.is All Rights Reserved
 * Company:      idega
  *@author <a href="mailto:aron@idega.is">Aron Birkir</a>
 * @version 1.1
 */

public class LoginCreator {

    public static String alpha = "aA��bBcCdD��eE��fFgGhHiI��jJkKlLmMnNoO��pPqQrRsStTuU��vVwWxXyY��zZ������";
    public static String beta = "aaaabbccddddeeeeffgghhiiiijjkkllmmnnooooppqqrrssttuuuuvvwwxxyyyyzzttaaoo";
    public static String dega = "aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ0123456789";
    public static String consonants = "bBcCdDfFgGhHjJkKlLmMnNpPqQrRsStTvVwWxXzZ��";
    public static String vowels = "aA��eE��iI��oO��uU��yY������";
    private static final int ONE = 1,TWO = 2,THREE=3,FOUR=4;
    public LoginCreator(){}

    public static String createLogin(String name){
      StringTokenizer st = new StringTokenizer(name);
      int TYPE = 0;
      int tokenCount = st.countTokens();
      int firstSize = 0;
      int thirdIndex = 0;
      String first = null,second=null,third=null;
      if(st.hasMoreTokens()){
        first = st.nextToken();
        firstSize = first.length();
      }
      if(st.hasMoreTokens()) {
		second =  st.nextToken();
	}
      if(st.hasMoreTokens()) {
		third =  st.nextToken();
	}

      if(tokenCount == 2 ) {
		third = second;
	}

      StringBuffer sb = new StringBuffer();
      int index = -1;
      if(firstSize <= 7){
        TYPE = ONE;
        for (int i = 0; i < first.length(); i++) {
          index = alpha.indexOf(String.valueOf(first.charAt(i)));
          if(index >= 0){
            sb.append(beta.charAt(index));
          }
        }
        if(third !=null){
          index = alpha.indexOf(String.valueOf(third.charAt(thirdIndex)));
          if(index >= 0){
            sb.append(beta.charAt(index));
          }
        }
      }
      else if(firstSize > 7 && tokenCount == 2){
        TYPE = TWO;
        for (int i = 0; i < 5; i++) {
          index = alpha.indexOf(String.valueOf(first.charAt(i)));
          if(index >= 0){
            sb.append(beta.charAt(index));
          }
        }
        if(second !=null){
          index = alpha.indexOf(String.valueOf(third.charAt(thirdIndex)));
          if(index >= 0){
            sb.append(beta.charAt(index));
          }
        }
      }
      else if(tokenCount >= 3){
        TYPE = THREE;
        index = alpha.indexOf(String.valueOf(first.charAt(0)));
        if(index!=-1) {
			sb.append(beta.charAt(index));
		}
        index = alpha.indexOf(String.valueOf(second.charAt(0)));
        if(index!=-1) {
			sb.append(beta.charAt(index));
		}
        index = alpha.indexOf(String.valueOf(third.charAt(thirdIndex)));
        if(index!=-1) {
			sb.append(beta.charAt(index));
		}
      }
      while (checkLoginExistence(sb.toString())){
        switch (TYPE) {
          case ONE:
          case TWO:
          case THREE:
            if(thirdIndex < third.length()) {
				sb.append(third.charAt(thirdIndex++));
			}
            break;
        }
        //System.err.println(sb.toString());
      }
      //System.err.println(sb.toString());
      return sb.toString();
    }

    public static boolean checkLoginExistence(String login){
      try{
        List L = EntityFinder.findAllByColumn(((com.idega.core.accesscontrol.data.LoginTableHome)com.idega.data.IDOLookup.getHomeLegacy(LoginTable.class)).createLegacy(),com.idega.core.accesscontrol.data.LoginTableBMPBean.getUserLoginColumnName(),login);
      if(L ==null) {
		return false;
	}
	else {
		return true;
	}
      }
      catch(java.sql.SQLException ex){
        return false;
      }
    }

    public static String createPasswd(int NumberOfCharacters){
      StringBuffer passwd = new StringBuffer(NumberOfCharacters);
      int len = dega.length();
      for (int i = 0; i < NumberOfCharacters; i++) {
        int num = (int) (Math.random() * len) ;
        passwd.append(dega.charAt(num));
      }
      return passwd.toString();
    }
  }