Niklas Rosencrantz

Hi what is a good book or other study material for the Java 7 programmer exam?
I see at amazons that the books are announced but they aren't yet out.
Any recommendations or ideas what material to focus on if I've got the Java 6 study guide?

Thank you

catch(AvoidingTheQuestionException){
Actually, Linux with JDk 1.5 doesn't seem to support GIF writing in the standard libraries. I must upgrade to 1.6 or use third party library.

Dear friends, why won't this code resizing a GIF image work on Linux with JDK 1.5? It works well on WinXP with JDK 1.6. On Linux it just produces an empty thumbnail image.
/* * To change this template, choose Tools | Templates * and open the template in the editor. */ package marketleader; /** * * @author Niklas */ import javax.imageio.*; import java.io.*; import java.awt.image.*; import java.awt.*; import javax.swing.ImageIcon; public class ToGif { public static void main(String args[]) throws IOException { if (args.length == 0) { System.err.println("Missing input filename"); System.exit(-1); } String name = args[0]; File inputFile = new File(name); BufferedImage input = ImageIO.read(inputFile); Image thumb = input.getScaledInstance(-1, 30, Image.SCALE_SMOOTH); BufferedImage output = toBufferedImage(thumb); File outputFile = new File("output" + name + ".gif"); ImageIO.write(output, "GIF", outputFile); } public static BufferedImage toBufferedImage(Image image) { if (image instanceof BufferedImage) { return (BufferedImage) image; } // This code ensures that all the pixels in the image are loaded image = new ImageIcon(image).getImage(); // Determine if the image has transparent pixels; for this method's // implementation, see e661 Determining If an Image Has Transparent Pixels boolean hasAlpha = false; // Create a buffered image with a format that's compatible with the screen BufferedImage bimage = null; GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); try { // Determine the type of transparency of the new buffered image int transparency = Transparency.OPAQUE; if (hasAlpha) { transparency = Transparency.BITMASK; } // Create the buffered image GraphicsDevice gs = ge.getDefaultScreenDevice(); GraphicsConfiguration gc = gs.getDefaultConfiguration(); bimage = gc.createCompatibleImage(image.getWidth(null), image.getHeight(null), transparency); } catch (HeadlessException e) { // The system does not have a screen } if (bimage == null) { // Create a buffered image using the default color model int type = BufferedImage.TYPE_INT_RGB; if (hasAlpha) { type = BufferedImage.TYPE_INT_ARGB; } bimage = new BufferedImage(image.getWidth(null), image.getHeight(null), type); } // Copy image to buffered image Graphics g = bimage.createGraphics(); // Paint the image onto the buffered image g.drawImage(image, 0, 0, null); g.dispose(); return bimage; } }
[ May 03, 2008: Message edited by: Niklas Rosencrantz ]

Thank you. I understand. I want the code to be clean and it needs cleaning. What is does is generate a list of object in a JSP page. You can see the program work at this web page. I'll try not to use the session object and will refactor the method, maybe take out the parts that work with XML reading and randomly selecting a news item from an XML file.

I build a classified ads web project with a listing generated by a Struts 1.3.9 Action which "works" but needs cleaning:
public ActionForward execute( ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { PasswordReminderForm myForm = (PasswordReminderForm) form; request.getSession().setAttribute("locationid", request.getParameter("locationid"));//not needed request.getSession().setAttribute("ac", request.getParameter("ac"));//not needed Locale.setDefault(new Locale(Constants.LANGUAGE, Constants.COUNTRY)); try { ChannelIF channelSports = FeedParser.parse(new ChannelBuilder(), new File(Constants.SPORTS_FEED)); ItemIF itemSports = null; String sportsFeedTitle = null; /* **************************************************** * Get a random sports item from the feed. * ************************************************* */ // Collection itemsNational = channelNational.getItems(); int itemCountSports = channelSports.getItems().size(); if (itemCountSports > 0) { int randomItemIndex = (int) ((double) itemCountSports * Math.random()); itemSports = (ItemIF) channelSports.getItems().toArray()[randomItemIndex]; sportsFeedTitle = itemSports.getTitle(); } ChannelIF channelNational = FeedParser.parse(new ChannelBuilder(), new File(Constants.NATIONAL_FEED)); ItemIF itemNational = null; String nationalFeedTitle = null; /* **************************************************** * Get a random national item from the feed. * ************************************************* */ int itemCountNational = channelNational.getItems().size(); //log.debug("itemCountNational: " + String.valueOf(itemCountNational)); if (itemCountNational > 0) { int randomItemIndex = (int) ((double) itemCountNational * Math.random()); //log.debug("randomItemIndex: " + String.valueOf(randomItemIndex)); itemNational = (ItemIF) channelNational.getItems().toArray()[randomItemIndex]; //log.debug("H�mtade itemNational"); nationalFeedTitle = itemNational.getTitle(); //log.debug("Titel fr�n itemNational: " + nationalFeedTitle); } /* **************************************************** * Process titles, making sure they are not too long * ************************************************* */ int lengthPerFeedTitle = 49; int sportsFeedTitleLength = sportsFeedTitle.length(); int nationalFeedTitleLength = nationalFeedTitle.length(); if (sportsFeedTitleLength + nationalFeedTitleLength > 2 * lengthPerFeedTitle) { if (sportsFeedTitleLength > lengthPerFeedTitle && nationalFeedTitleLength > lengthPerFeedTitle) { // Both feed titles are longer than maximum allowed chars each, so they are chopped down sportsFeedTitle = sportsFeedTitle.substring(0, sportsFeedTitle.lastIndexOf(" ", lengthPerFeedTitle)) + "..."; nationalFeedTitle = nationalFeedTitle.substring(0, nationalFeedTitle.lastIndexOf(" ", lengthPerFeedTitle)) + "..."; } else if (sportsFeedTitleLength > lengthPerFeedTitle && nationalFeedTitleLength <= lengthPerFeedTitle) { // Sport feed title is longer than 45 chars, so its chopped down sportsFeedTitle = sportsFeedTitle.substring(0, sportsFeedTitle.lastIndexOf(" ", 2 * lengthPerFeedTitle - nationalFeedTitleLength)) + "..."; } else { // National feed title is longer than 45 chars, so its chopped down nationalFeedTitle = nationalFeedTitle.substring(0, nationalFeedTitle.lastIndexOf(" ", 2 * lengthPerFeedTitle - sportsFeedTitleLength)) + "..."; } } /* **************************************************** * Put the selected feed info into the request scope * ************************************************* */ // Put in an attribute with the entire title to a tooltip request.setAttribute("sportnewstitle", sportsFeedTitle); request.setAttribute("sportnewslink", itemSports.getLink().toString()); request.setAttribute("sportnewslongtitle", itemSports.getTitle()); request.setAttribute("nationalnewstitle", nationalFeedTitle); request.setAttribute("nationalnewslink", itemNational.getLink().toString()); request.setAttribute("nationalnewslongtitle", itemNational.getTitle()); request.setAttribute("analytics_id", Constants.ANALYTICS_ID); } catch (Exception mue) { log.error("Fel vid behandling av RSS feeds, se kommande stack trace."); log.error("", mue); } // boolean displayImages = false; boolean forsale = true; int page = 1; //int lowerLimit = 0; //int noOfPages = 0; //int rowCount = 0; //int numberOfResults = 0; int sell = 1; // String location = "Sao Paulo"; String imageInfo = request.getParameter("images"); String sellInfo = request.getParameter("sell"); String pageInfo = request.getParameter("page"); String categoryid = request.getParameter("categoryid"); // String lowerLimitInfo = request.getParameter("lowerLimitInfo"); // String upperLimitInfo = request.getParameter("upperLimitInfo"); // String hideImages = "0"; // String showImages = "0"; String basecategoryid = null; if (categoryid != null) { if ("1002".equals(categoryid) || "1003".equals(categoryid) || "1004".equals(categoryid) || "1005".equals(categoryid)) { int int_basecategoryid = Integer.parseInt(categoryid) - 1001; basecategoryid = "" + int_basecategoryid; } } else { categoryid = "1001"; } if (pageInfo != null) { try { page = Integer.parseInt(pageInfo); } catch (NumberFormatException e) { log.warn("page number not an integer"); page = (int) Math.ceil(Double.parseDouble(pageInfo)); } } if (page == 1) { //isFirst = true; } else { if (page == 2) { //isSecondFirst = true; } } boolean displayImages = false; if (imageInfo != null) { if (imageInfo.equals("true")) { displayImages = true; } } if (sellInfo != null) { if (sellInfo.equals("false")) { sell = 0; forsale = false; request.setAttribute("type", "wanted"); } } /* *********************************************** * Calculate the number of pages for when switching * between viewing with or without images. * TODO: put numbers in config file. * ********************************************* */ ResourceBundle applicationConfig = ResourceBundle.getBundle("Application"); String currencySymbol = ""; try { currencySymbol = applicationConfig.getString("currencySymbol"); request.setAttribute("currencySymbol", currencySymbol); log.info("currency:" + currencySymbol); } catch (Exception ex) { log.error("Error when parsing currencySymbol config for currencySymbol", ex); log.info("Using no currencySymbol");//default number of records for listing with images: " + String.valueOf(resultsPerPageWithImages)); currencySymbol = ""; } int resultsPerPageWithImages = 50; try { resultsPerPageWithImages = Integer.parseInt(applicationConfig.getString("display.resultsPerPage.withImages")); } catch (Exception ex) { log.error("Error when parsing application config for display.resultsPerPage.withImages", ex); log.info("Using default number of records for listing with images: " + String.valueOf(resultsPerPageWithImages)); } int resultsPerPageWithoutImages = 100; try { resultsPerPageWithoutImages = Integer.parseInt(applicationConfig.getString("display.resultsPerPage.withoutImages")); } catch (Exception ex) { log.error("Error when parsing application config for display.resultsPerPage.withoutImages", ex); log.info("Using default number of records for listing without images: " + String.valueOf(resultsPerPageWithoutImages)); } /* int pageWithImages = 1; int pageWithoutImages = 1; if (displayImages) { // The value in "page" is the one for listing with images. pageWithImages = page; pageWithoutImages = 1 + (int) ((double) (page - 1) * (double) resultsPerPageWithImages / (double) resultsPerPageWithoutImages); } else { // The value in "page" is the one for listing without images. pageWithoutImages = page; pageWithImages = 1 + (int) ((double) (page - 1) * (double) resultsPerPageWithoutImages / (double) resultsPerPageWithImages); } */ request.setAttribute("sell", "" + forsale); request.setAttribute("page", "" + page); setLocale(request, new Locale(Constants.LANGUAGE, Constants.COUNTRY)); return mapping.findForward("success"); }
I just modified this from Servlet to Action. Would you propose I also change the simpler case of viewing one single object also from a Servlet to an Action, or should I keep it a Servlet?
Thank you
Niklas Rosencrantz

Is this as it says "encryption" or just hashing with MessageDigest? Is this good enough? Should I use SHA? Are code conventions completely followed?
/* * PasswordReminderAction.java * * Created on den 31 maj 2006, 20:05 * * To change this template, choose Tools | Template Manager * and open the template in the editor. */ package marketleader; /** * * @author developer */ import java.util.*; import javax.servlet.http.*; import org.apache.log4j.Logger; import org.apache.struts.action.*; import org.apache.struts.util.*; import java.sql.*; import marketleader.util.*; import org.jasypt.util.password.BasicPasswordEncryptor; public class PasswordReminderAction extends Action { final static String alphabet = "abcdefghijklmnopqrstuvwxyz"; static GpwData data = null; Logger log = Logger.getLogger(this.getClass()); /** @Override */ public ActionForward execute( ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { PasswordReminderForm myForm = (PasswordReminderForm) form; String email = myForm.getEmailAddress(); BasicPasswordEncryptor passwordEncryptor = new BasicPasswordEncryptor(); String password = generate(1, 5); //log.info("generated:" + password + " " + generate(1, 10)); //log.debug("generated:" + password + " " + generate(1, 10)); String encryptedPassword = passwordEncryptor.encryptPassword(password); Connection conn = null; try { conn = DBSettings.getConnection(); String sql = "select email, subject from classifieds where id=?";// + myForm.getId();//(String)request.getSession().getAttribute("id"); log.debug("sql" + sql); PreparedStatement st = conn.prepareStatement(sql); st.setString(1, myForm.getId()); ResultSet rs = st.executeQuery(); String db_email = null; String subject = null; if (rs.next()) { db_email = rs.getString("email"); subject = rs.getString("subject"); } log.info("email in db: " + db_email + " submitted email:" + email); if (db_email.equals(email)) { String sql2 = "update classifieds set password=? where id=?";// + myForm.getId();//(String)request.getSession().getAttribute("id"); st.setString(1, encryptedPassword); st.setString(2, myForm.getId()); log.debug("sql2" + sql2); PreparedStatement st2 = conn.prepareStatement(sql); st2.execute(); MessageResources messageResources = getResources(request); log.info("messageresources config" + messageResources.getConfig()); setLocale(request, new Locale(Constants.LANGUAGE, Constants.COUNTRY)); String theBody = messageResources.getMessage(request.getLocale(), "link.to.announcement") + " <a href=\"http://" + request.getServerName().replaceAll("www.", "") + "/vi/" + myForm.getId() + ".htm" + "\">http://" + request.getServerName().replaceAll("www.", "") + "/vi/" + myForm.getId() + ".htm</a>"; theBody = theBody + "<br><br>" + messageResources.getMessage(request.getLocale(), "password.for.ad") + password; theBody = theBody + "<br><br>" + messageResources.getMessage(request.getLocale(), "thanks.for.using") + " <a href=\"http://" + request.getServerName().replaceAll("www.", "") + "\">" + request.getServerName().replaceAll("www.", "") + "</a>."; theBody = theBody + "<br><br>------------------------------"; theBody = theBody + "<br><br><a href=\"http://" + request.getServerName().replaceAll("www.", "") + "\">" + request.getServerName().replaceAll("www.", "") + "</a> - " + messageResources.getMessage(request.getLocale(), "buy.and.sell.site"); new MarketMail(Constants.SMTP_SERVER, email, "info@" + request.getServerName().replaceAll("www.", ""), messageResources.getMessage(request.getLocale(), "password") + ": " + subject, theBody, request.getServerName()); request.setAttribute("id", myForm.getId()); request.setAttribute("button1", "Voltar para o an�ncio"); request.setAttribute("button2", "Fazer nova busca"); request.setAttribute("message", "<p>Parab�ns!<br><br>Sua senha foi enviada para o endere�o de e-mail que voc� forneceu.<br><br>"); } else { return mapping.findForward("success"); } //st.close(); //rs.close(); // conn.close(); } catch (Exception sqlEx) { log.error("SQLException", sqlEx); } finally { try { conn.close(); } catch (SQLException sqlEx) { log.error("SQLException", sqlEx); } } return mapping.findForward("success"); } private String generate(int npw, int pwl) { int c1, c2, c3; long sum = 0; int nchar; long ranno; int pwnum; double pik; StringBuffer password = null; Random ran = new Random(); // new random source seeded by clock if (data == null) { data = new GpwData(); } // Pick a random starting point. for (pwnum = 0; pwnum < npw; pwnum++) { password = new StringBuffer(pwl); pik = ran.nextDouble(); // random number [0,1] ranno = (long) (pik * data.getSigma()); // weight by sum of frequencies sum = 0; for (c1 = 0; c1 < 26; c1++) { for (c2 = 0; c2 < 26; c2++) { for (c3 = 0; c3 < 26; c3++) { sum += data.get(c1, c2, c3); if (sum > ranno) { password.append(alphabet.charAt(c1)); password.append(alphabet.charAt(c2)); password.append(alphabet.charAt(c3)); c1 = 26; // Found start. Break all 3 loops. c2 = 26; c3 = 26; } // if sum } // for c3 } // for c2 } // for c1 // Now do a random walk. nchar = 3; while (nchar < pwl) { c1 = alphabet.indexOf(password.charAt(nchar - 2)); c2 = alphabet.indexOf(password.charAt(nchar - 1)); sum = 0; for (c3 = 0; c3 < 26; c3++) { sum += data.get(c1, c2, c3); } if (sum == 0) { break;// exit while loop } pik = ran.nextDouble(); ranno = (long) (pik * sum); sum = 0; for (c3 = 0; c3 < 26; c3++) { sum += data.get(c1, c2, c3); if (sum > ranno) { password.append(alphabet.charAt(c3)); c3 = 26; // break for loop } // if sum } // for c3 nchar++; } // while nchar //pan.add(new Label(password.toString())); // Password generated } // for pwnum return password.toString(); } // generate() }

I chose it when I had to do file uploads. It was the right choice. A good place for examples is RoseIndia Struts
If you start from scratch now you probably want Struts 2.
Or check out an example struts action which is my latest example (1.3.9)
/* * PasswordReminderAction.java * * Created on den 31 maj 2006, 20:05 * * To change this template, choose Tools | Template Manager * and open the template in the editor. */ package marketleader; /** * * @author developer */ import java.util.*; import javax.servlet.http.*; import org.apache.log4j.Logger; import org.apache.struts.action.*; import org.apache.struts.util.*; import java.sql.*; import marketleader.util.*; import org.jasypt.util.password.BasicPasswordEncryptor; public class PasswordReminderAction extends Action { final static String alphabet = "abcdefghijklmnopqrstuvwxyz"; static GpwData data = null; Logger log = Logger.getLogger(this.getClass()); /** @Override */ public ActionForward execute( ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { PasswordReminderForm myForm = (PasswordReminderForm) form; String email = myForm.getEmailAddress(); BasicPasswordEncryptor passwordEncryptor = new BasicPasswordEncryptor(); String password = generate(1, 5); //log.info("generated:" + password + " " + generate(1, 10)); //log.debug("generated:" + password + " " + generate(1, 10)); String encryptedPassword = passwordEncryptor.encryptPassword(password); Connection conn = null; try { conn = DBSettings.getConnection(); String sql = "select email, subject from classifieds where id=?";// + myForm.getId();//(String)request.getSession().getAttribute("id"); log.debug("sql" + sql); PreparedStatement st = conn.prepareStatement(sql); st.setString(1, myForm.getId()); ResultSet rs = st.executeQuery(); String db_email = null; String subject = null; if (rs.next()) { db_email = rs.getString("email"); subject = rs.getString("subject"); } log.info("email in db: " + db_email + " submitted email:" + email); if (db_email.equals(email)) { String sql2 = "update classifieds set password=? where id=?";// + myForm.getId();//(String)request.getSession().getAttribute("id"); st.setString(1, encryptedPassword); st.setString(2, myForm.getId()); log.debug("sql2" + sql2); PreparedStatement st2 = conn.prepareStatement(sql); st2.execute(); MessageResources messageResources = getResources(request); log.info("messageresources config" + messageResources.getConfig()); setLocale(request, new Locale(Constants.LANGUAGE, Constants.COUNTRY)); String theBody = messageResources.getMessage(request.getLocale(), "link.to.announcement") + " <a href=\"http://" + request.getServerName().replaceAll("www.", "") + "/vi/" + myForm.getId() + ".htm" + "\">http://" + request.getServerName().replaceAll("www.", "") + "/vi/" + myForm.getId() + ".htm</a>"; theBody = theBody + "<br><br>" + messageResources.getMessage(request.getLocale(), "password.for.ad") + password; theBody = theBody + "<br><br>" + messageResources.getMessage(request.getLocale(), "thanks.for.using") + " <a href=\"http://" + request.getServerName().replaceAll("www.", "") + "\">" + request.getServerName().replaceAll("www.", "") + "</a>."; theBody = theBody + "<br><br>------------------------------"; theBody = theBody + "<br><br><a href=\"http://" + request.getServerName().replaceAll("www.", "") + "\">" + request.getServerName().replaceAll("www.", "") + "</a> - " + messageResources.getMessage(request.getLocale(), "buy.and.sell.site"); new MarketMail(Constants.SMTP_SERVER, email, "info@" + request.getServerName().replaceAll("www.", ""), messageResources.getMessage(request.getLocale(), "password") + ": " + subject, theBody, request.getServerName()); request.setAttribute("id", myForm.getId()); request.setAttribute("button1", "Voltar para o an�ncio"); request.setAttribute("button2", "Fazer nova busca"); request.setAttribute("message", "<p>Parab�ns!<br><br>Sua senha foi enviada para o endere�o de e-mail que voc� forneceu.<br><br>"); } else { return mapping.findForward("success"); } //st.close(); //rs.close(); // conn.close(); } catch (Exception sqlEx) { log.error("SQLException", sqlEx); } finally { try { conn.close(); } catch (SQLException sqlEx) { log.error("SQLException", sqlEx); } } return mapping.findForward("success"); } private String generate(int npw, int pwl) { int c1, c2, c3; long sum = 0; int nchar; long ranno; int pwnum; double pik; StringBuffer password = null; Random ran = new Random(); // new random source seeded by clock if (data == null) { data = new GpwData(); } // Pick a random starting point. for (pwnum = 0; pwnum < npw; pwnum++) { password = new StringBuffer(pwl); pik = ran.nextDouble(); // random number [0,1] ranno = (long) (pik * data.getSigma()); // weight by sum of frequencies sum = 0; for (c1 = 0; c1 < 26; c1++) { for (c2 = 0; c2 < 26; c2++) { for (c3 = 0; c3 < 26; c3++) { sum += data.get(c1, c2, c3); if (sum > ranno) { password.append(alphabet.charAt(c1)); password.append(alphabet.charAt(c2)); password.append(alphabet.charAt(c3)); c1 = 26; // Found start. Break all 3 loops. c2 = 26; c3 = 26; } // if sum } // for c3 } // for c2 } // for c1 // Now do a random walk. nchar = 3; while (nchar < pwl) { c1 = alphabet.indexOf(password.charAt(nchar - 2)); c2 = alphabet.indexOf(password.charAt(nchar - 1)); sum = 0; for (c3 = 0; c3 < 26; c3++) { sum += data.get(c1, c2, c3); } if (sum == 0) { break;// exit while loop } pik = ran.nextDouble(); ranno = (long) (pik * sum); sum = 0; for (c3 = 0; c3 < 26; c3++) { sum += data.get(c1, c2, c3); if (sum > ranno) { password.append(alphabet.charAt(c3)); c3 = 26; // break for loop } // if sum } // for c3 nchar++; } // while nchar //pan.add(new Label(password.toString())); // Password generated } // for pwnum return password.toString(); } // generate() }
[ April 28, 2008: Message edited by: Niklas Rosencrantz ]

The way I did it with Ubuntu was completely trivial, just with apt-get install and everything was set. If you want j2ee to reside in another directory I would reinstall it and try to use some installation option to specify where it installs. I myself didn't have to set up java configuration variables at all with Ubuntu. java and javac worked from any directory right after installation. I used to run Mandriva where I had to specify conf variables which isn't optimal for instance if you upgrade you have to change JAVA_HOME wherever you have it, for instance in startup files for the application server. My advice would be to avoid all manual configuration and leave as much as possible to the installer.
Good luck
Niklas

I believe you need to define a form bean and use the struts html:form tag.
Here are good examples to base your code on: Struts examples
I hope these clarify.
Niklas
[ April 19, 2008: Message edited by: Niklas Rosencrantz ]

Is request.getServerName() what you're looking for? I hope so. It works for me.
yours truly
Niklas R

Replace the jsp in the default ROOT directory or remove the ROOT directory if you deploy your root context as an archive.
Regards,
Niklas

Usually you won't have to compile mod_jk, just download mod_jk.so to the location you set in httpd configuration. mod_rewrite is usually built in with newer httpd installations or very easy to set up if you read the manual. Reading the manual worked for me with Arch Linux, Red Hat Linux, Mandriva Linux and MS-windows. If you post a specific error you receive in your configuration we can provide more help.
Hope this clarifies somewhat.
Niklas R

Dear guys,
I've added features and fixes to my web app which works well in the development environment, want to deploy it to production environment where users are logged on, have planned like this and would like to know if this could be a well-working strategy: When I update the web archive and deploy a new version to the app server (Tomcat 5.5) I set it to /context2 so everything still works normal from the usual /context1?
When the new tests work you deploy again and replace /context1, or change the links from / so everything points to /context2 and next deployment you replace /context1 accordingly. This way you'd be able to test the new verison once more in production environemnt with not logging off all users.
Thank you
Niklas R

[ April 16, 2008: Message edited by: Niklas Rosencrantz ]
[ April 16, 2008: Message edited by: Niklas Rosencrantz ]

How come the following outputs are not the same:
setLocale(request, new Locale(Constants.LANGUAGE, Constants.COUNTRY)); log.info("info:"+messageResources.getMessage(new Locale(Constants.LANGUAGE, Constants.COUNTRY), "this.email")); log.info("info2:"+messageResources.getMessage("this.email"));
The two log messages are in different languages. There is something I've misunderstood since I expect the output from the two log messages to be identical. Could somebody please explain?
Thank you
Niklas

Thank you for the very informative replies. Indeed, my round calculation resulted in about maximum 1000 files per directory if you store a million files and have 3 directory levels, if the first 3 letters in the filenames are somewhat evenly distributed. I assume there would be about the same number of files starting with "aba" as with "abn" and that no three-letter-combination is significantly more popular than another. I can run tests on my thousands of stored files so far to see how naming of the first 3 letters is statistically.
Sincerely,
Niklas