EDIT

/**

 * Copyright (C) 2007 EDIT

 * European Distributed Institute of Taxonomy

 * http://www.e-taxonomy.eu

 *

 * The contents of this file are subject to the Mozilla Public License Version 1.1

 * See LICENSE.TXT at the top of this package for the full license terms.

 */

package eu.etaxonomy.cdm.common;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

import java.util.Properties;

import org.apache.log4j.Logger;

public class AccountStore {

    private static Logger logger = Logger.getLogger(AccountStore.class);

    public final static File accountsFile = new File(CdmUtils.perUserCdmFolder + File.separator + ".dbaccounts.properties");

    public static String getAccountsFileName(){

        try {

            return accountsFile.getCanonicalPath();

        } catch (IOException e) {

            logger.warn(e);

            return "AN ERROR OCCURRED WHEN RETRIEVING THE FILE NAME";

        }

    }

    public String getPassword(String dbms, String strServer, String userName){

        String pwd = null;

        Properties accounts = loadAccounts();

        String key = strServer+'.'+dbms+'.'+userName;

        pwd = accounts.getProperty(key);

        return pwd;

    }

    private Properties loadAccounts() {

        Properties accounts = new Properties();

        try {

            accountsFile.createNewFile();

            // this gives me errors. Properties object doesn't have a method

            // with this signature

            //FileReader in = new FileReader(accountsFile);

            //accounts.load(in);

            //in.close();

            FileInputStream inStream = new FileInputStream(accountsFile);

            accounts.load(inStream);

            inStream.close();

        } catch (IOException e) {

            logger.error(e);

        }

        return accounts;

    }

    public void setPassword(String dbms, String strServer, String userName, String pwd){

        Properties accounts = loadAccounts();

        String key = strServer+'.'+dbms+'.'+userName;

        accounts.setProperty(key, pwd);

        saveAccounts(accounts);

    }

    private void saveAccounts(Properties accounts) {

        //FileWriter out;

        FileOutputStream outStream;

        try {

            //out = new FileWriter(accountsFile);

            //accounts.store(out, "");

            //out.close();

            outStream = new FileOutputStream(accountsFile);

            accounts.store(outStream, "");

            outStream.close();

        } catch (FileNotFoundException e) {

            logger.error("File " + accountsFile.toString() + " not found", e);

        } catch (IOException e) {

            logger.error("Unable to write properties", e);

        }

    }

    public void removePassword(String dbms, String strServer, String userName){

        String key = strServer+'.'+dbms+'.'+userName;

        Properties accounts = loadAccounts();

        accounts.remove(key);

        saveAccounts(accounts);

    }

    public static String readOrStorePassword(String dbms, String strServer, String userName, String pwd){

        AccountStore accounts = new AccountStore();

        boolean doStore = false;

        try {

            if (pwd == null){

                pwd = accounts.getPassword(dbms, strServer, userName);

                if(pwd == null){

                    doStore = true;

                    pwd = CdmUtils.readInputLine("Please insert password for user '" + CdmUtils.Nz(userName) + "': ");

                } else {

                    logger.info("using stored password for user '" + CdmUtils.Nz(userName) + "'");

                }

            }

            // on success store userName, pwd in property file

            if(doStore){

                accounts.setPassword(dbms, strServer, userName, pwd);

                logger.info("password stored in " + AccountStore.getAccountsFileName());

            }

        } catch (Exception e) {

            if(doStore){

                accounts.removePassword(dbms, strServer, userName);

                logger.info("password removed from " + AccountStore.getAccountsFileName());

            }

            logger.error(e);

            return null;

        }

        return pwd;

    }

    public static void main(String[] args) {

        AccountStore a = new AccountStore();

//		BerlinModel - EditWp6

        String dbms = "SQLServer";

        String strServer = "BGBM111";

        String userName = "webUser";

        a.setPassword(dbms, strServer, userName, "psst");

        logger.info(a.getPassword(dbms, strServer, userName));

        a.removePassword(dbms, strServer, userName);

        logger.info(a.getPassword(dbms, strServer, userName));

    }

}