From: Roland Haeder Date: Tue, 11 Aug 2015 11:27:42 +0000 (+0200) Subject: handleChooseFromRequestSession() can be made private X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=c1b21520d72920355c59e2b5087053099436593e;p=pizzaservice-war.git handleChooseFromRequestSession() can be made private Signed-off-by:Roland Häder --- diff --git a/src/java/org/mxchange/pizzaapplication/application/PizzaApplication.java b/src/java/org/mxchange/pizzaapplication/application/PizzaApplication.java index 93d0d933..c4e98b41 100644 --- a/src/java/org/mxchange/pizzaapplication/application/PizzaApplication.java +++ b/src/java/org/mxchange/pizzaapplication/application/PizzaApplication.java @@ -74,16 +74,6 @@ public interface PizzaApplication extends Application { */ public String handleAmountFromRequestSession (final Product product, final HttpServletRequest request, final HttpSession session); - /** - * Handler for choosen (checkbox) from request or session - * - * @param product Product instance - * @param request Request instance - * @param session Session instance - * @return Amount as string - */ - public String handleChooseFromRequestSession (final Product product, final HttpServletRequest request, final HttpSession session); - /** * Some "getter" for printable choosen (checkbox) from request or session * @@ -176,6 +166,14 @@ public interface PizzaApplication extends Application { */ public void unmarkProductAsOrdered(final Product product, final HttpSession session); + /** + * Unmarks given product as choosen in session + * + * @param product Product to unmark as choosen + * @param session Session instance + */ + public void unmarkProductAsChoosen(final Product product, final HttpSession session); + /** * Some getter for printable value from session or an empty string for null. * diff --git a/src/java/org/mxchange/pizzaapplication/application/PizzaServiceApplication.java b/src/java/org/mxchange/pizzaapplication/application/PizzaServiceApplication.java index 445228b4..5eb1ce18 100644 --- a/src/java/org/mxchange/pizzaapplication/application/PizzaServiceApplication.java +++ b/src/java/org/mxchange/pizzaapplication/application/PizzaServiceApplication.java @@ -43,11 +43,6 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P */ public static final String MAIN_TITLE = "Pizza-Service"; - /** - * Product list - */ - private final SortedMap products; - /** * Some singleton getter for this instance. If the instance is not set in * given application, it will be created. @@ -63,7 +58,7 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P throw new NullPointerException("application is null"); //NOI18N } - // Init instance + // Init instance PizzaApplication instance = null; // Get instance from servlet application (aka. "application scope") @@ -91,418 +86,298 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P return instance; } + /** + * For debugging purpose + * + * @param args Arguments + */ + public static void main (String[] args) { + // Get instance and start it + new PizzaServiceApplication().start(); + } + + /** + * Product list + */ + private final SortedMap products; + /** * Private constructor */ private PizzaServiceApplication () { // Init products instance this.products = new TreeMap<>(); - + // Init bundle this.initBundle(); - + // Fill products list this.fillProductsList(); } + /** + * Calculates total amount of all choosen products + * + * @param request Request instance + * @param session Session instance + * @return Total amount of all choosen products + */ + @Override + public int calculateTotalAmount (final HttpServletRequest request, final HttpSession session) { + // Trace message + this.getLogger().trace(MessageFormat.format("request={0},session={1} - CALLED!", request, session)); //NOI18N + + // Is product and session set? + if (request == null) { + // Not set + throw new NullPointerException("request is null"); //NOI18N + } else if (session == null) { + // Not set + throw new NullPointerException("session is null"); //NOI18N + } + + // Init total price + int totalAmount = 0; + + // "Walk" over all products + for (final Product product : this.getProducts()) { + // Is this choosen? + if (this.isProductChoosen(product, request, session)) { + // Then add ordered amount + this.getLogger().debug(MessageFormat.format("Counting {0} ...", product.getName())); //NOI18N + + // Getting amount + String amount = this.getAmountFromSession(product, session); + + // Add it up + this.getLogger().debug(MessageFormat.format("amount={0}", amount)); //NOI18N + totalAmount += Integer.valueOf(amount); + } + this.getLogger().debug(MessageFormat.format("product={0},totalAmount={1}", product.getName(), totalAmount)); //NOI18N + } + + // Trace message + this.getLogger().trace(MessageFormat.format("totalAmount={0} - EXIT!", totalAmount)); //NOI18N + + // Return total price + return totalAmount; + } + + /** + * Calculates total price of all choosen products + * + * @param request Request instance + * @param session Session instance + * @return Total price of all choosen products + */ + @Override + public float calculateTotalPrice (final HttpServletRequest request, final HttpSession session) { + // Trace message + this.getLogger().trace(MessageFormat.format("request={0},session={1} - CALLED!", request, session)); //NOI18N + + // Is product and session set? + if (request == null) { + // Not set + throw new NullPointerException("request is null"); //NOI18N + } else if (session == null) { + // Not set + throw new NullPointerException("session is null"); //NOI18N + } + + // Init total price + float totalPrice = 0.00f; + + // "Walk" over all products + for (final Product product : this.getProducts()) { + // Is this choosen? + if (this.isProductChoosen(product, request, session)) { + // Then add product's total price + this.getLogger().debug(MessageFormat.format("Calling getTotalPositionPriceFromRequestSession({0},request,session) ...", product.getName())); //NOI18N + totalPrice += this.getTotalPositionPriceFromRequestSession(product, request, session); + } + this.getLogger().debug(MessageFormat.format("product={0},totalPrice={1}", product.getName(), totalPrice)); //NOI18N + } + + // Trace message + this.getLogger().trace(MessageFormat.format(" totalPrice={0} - EXIT!", totalPrice)); //NOI18N + + // Return total price + return totalPrice; + } + @Override public void doBootstrap () { throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. } - + @Override public void doMainLoop () { throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. } - + @Override public void doShutdown () { throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. } /** - * Adds given product to list or throws an exception if name is already found + * Some "getter" for amount from session * - * @param name Internal name of product - * @param title Product's title - * @param price Price + * @param product Product instance + * @param session Session instance + * @return Amount as string */ - private void addProduct (final String name, final String title, final float price) { + @Override + public String getAmountFromSession (final Product product, final HttpSession session) { // Trace message - this.getLogger().trace(MessageFormat.format("name={0},title={1},price={2} - CALLED!", name, title, price)); //NOI18N + this.getLogger().trace(MessageFormat.format("product={0},session={1} - CALLED!", product, session)); //NOI18N - // Is the name already used? - if (this.isProductNameUsed(name)) { - // Something went wrong - throw new IllegalArgumentException(MessageFormat.format("product {0} is already used.", name)); //NOI18N + // Is product and session set? + if (product == null) { + // Not set + throw new NullPointerException("product is null"); //NOI18N + } else if (session == null) { + // Not set + throw new NullPointerException("session is null"); //NOI18N } - // Instance product - Product product = new PizzaProduct(name, title, price); + // Get attribute + Object object = this.getValueFromSession(product, session, HTTP_PARAM_AMOUNT); - // Debug message - this.getLogger().debug(MessageFormat.format("Adding product={0} ...", product)); //NOI18N + // Is the object null? + if (object == null) { + // Trace message + this.getLogger().trace("Returning 0 - EXIT!"); //NOI18N - // Add it - this.products.put(product.getName(), product); + // Not found + return "0"; //NOI18N + } // Trace message - this.getLogger().trace("EXIT!"); //NOI18N + this.getLogger().trace(MessageFormat.format("object={0} - EXIT!", object)); //NOI18N + + // Cast to string and return it + return (String) object; } /** - * Clears given parameter for product in session + * Some "getter" for HTML code 'checked="checked"' if the product is choosen * * @param product Product instance + * @param request Request instance * @param session Session instance - * @param parameter Parameter to clear - */ - private void clearSessionAttribute (final Product product, final HttpSession session, final String parameter) { - // Trace message - this.getLogger().trace(MessageFormat.format("produce={0},parameter={1},session={2} - CALLED!", product, parameter, session)); //NOI18N - - // Clear in session - this.getLogger().debug(MessageFormat.format("Clearing product={0},parameter={1} ...", product.getName(), parameter)); //NOI18N - this.setValueInSession(product, session, parameter, null); - - // Trace message - this.getLogger().trace("EXIT!"); //NOI18N - } - - /** - * Fills products list - * @todo Very hard-coded stuff ... + * @return Whether the product is choosen */ - private void fillProductsList () { + @Override + public String getCheckedHtmlFromProduct (final Product product, final HttpServletRequest request, final HttpSession session) { // Trace message - this.getLogger().trace("CALLED!"); //NOI18N - - // Add products - this.addProduct("italia", "Pizza Italia", 5.50f); //NOI18N - this.addProduct("diablo", "Pizza Diablo", 7.80f); //NOI18N - this.addProduct("bolognese", "Spagetti Bolognese", 11.95f); //NOI18N + this.getLogger().trace(MessageFormat.format("product={0},request={1},session={2} - CALLED!", product, request, session)); //NOI18N + + // Is product and session set? + if (product == null) { + // Not set + throw new NullPointerException("product is null"); //NOI18N + } else if (request == null) { + // Not set + throw new NullPointerException("request is null"); //NOI18N + } else if (session == null) { + // Not set + throw new NullPointerException("session is null"); //NOI18N + } + + // First let's check if the product is choosen + if (this.isProductChoosen(product, request, session)) { + // Trace message + this.getLogger().trace("Returning checked=\"checked\" - EXIT!"); //NOI18N + + // Is choosen + return "checked=\"checked\""; //NOI18N + } else { + // Trace message + this.getLogger().trace("Returning empty string - EXIT!"); //NOI18N - // Trace message - this.getLogger().trace("EXIT!"); //NOI18N + // Not choosen + return ""; //NOI18N + } } /** - * Some getter for value from session - * + * Some "getter" for choose from session + * * @param product Product instance * @param session Session instance - * @param attribute Attribute to get value from - * @return Value from session + * @return Choose as string */ - private Object getValueFromSession (final Product product, final HttpSession session, final String attribute) { + @Override + public String getChooseFromSession (final Product product, final HttpSession session) { // Trace message - this.getLogger().trace(MessageFormat.format("product={0},session={1},attribute={2} - CALLED!", product, session, attribute)); //NOI18N - - // Init variable - Object value = this.getValueFromSession(session, String.format(HTTP_PARAM_MASK, product.getName(), attribute)); + this.getLogger().trace(MessageFormat.format("product={0},session={1} - CALLED!", product, session)); //NOI18N - this.getLogger().debug(MessageFormat.format("product={0},attribute={1},value={2}", product.getName(), attribute, value)); //NOI18N + // Is product and session set? + if (product == null) { + // Not set + throw new NullPointerException("product is null"); //NOI18N + } else if (session == null) { + // Not set + throw new NullPointerException("session is null"); //NOI18N + } + + // Get attribute + Object object = this.getValueFromSession(product, session, HTTP_PARAM_CHOOSE); + + // Is the object null? + if (object == null) { + // Not found + this.getLogger().debug(MessageFormat.format("Returning empty string for product={0} ...", product.getName())); //NOI18N + return ""; //NOI18N + } // Trace message - this.getLogger().trace(MessageFormat.format("value={0} - EXIT!", value)); //NOI18N + this.getLogger().trace(MessageFormat.format("object={0} - CALLED!", object)); //NOI18N - // Return it - return value; + // Cast to string and return it + return (String) object; } /** - * Some getter for value from session + * Some "getter" for HTML code 'disabled="disabled"' for e.g. submit buttons * + * @param request Request instance * @param session Session instance - * @param key Key to get value from - * @return Value from session + * @return Whether the product is choosen */ - private Object getValueFromSession (final HttpSession session, final String key) { + @Override + public String getDisabledHtmlFromSession (final HttpServletRequest request, final HttpSession session) { // Trace message - this.getLogger().trace(MessageFormat.format("session={043},key={1} - CALLED!", session, key)); //NOI18N - - // Init value - Object value = null; - - // Get it synchronized from session - synchronized (session) { - value = session.getAttribute(key); - } - - // Trace message - this.getLogger().trace(MessageFormat.format("value={0} - EXIT!", value)); //NOI18N - - // Return it - return value; - } - - /** - * Checks whether given product is already used - * - * @param name Name of product - * @return Whether the given product's name is already used - */ - private boolean isProductNameUsed (final String name) { - // Trace message - this.getLogger().trace(MessageFormat.format("name={0} - CALLED!", name)); //NOI18N - - // Is it found? - return this.products.containsKey(name); - } - - /** - * For debugging purpose - * - * @param args Arguments - */ - public static void main (String[] args) { - // Get instance and start it - new PizzaServiceApplication().start(); - } - - /** - * Checks if the product ordered? - * - * @param product - * @param session - * @return - */ - private boolean isProductOrdered (final Product product, final HttpSession session) { - // Trace message - this.getLogger().trace(MessageFormat.format("product={0},session={1} - CALLED!", product, session)); //NOI18N - - // Get session - Object isOrdered = this.getValueFromSession(product, session, SESSION_ORDERED); - this.getLogger().debug(MessageFormat.format("product={0},isOrdered={1}", product.getName(), isOrdered)); //NOI18N - - // Return result - return ("true".equals(isOrdered)); //NOI18N - } - - /** - * Somewhat setter in session - * - * @param product Product instance - * @param session Session instance - * @param keyPart Key part to include in final key - * @param value Value to set - */ - private void setValueInSession (final Product product, final HttpSession session, final String keyPart, final Object value) { - // Trace message - this.getLogger().trace(MessageFormat.format("product={0},session={1},keyPart={2},value={3} - CALLED!", product, session, keyPart, value)); //NOI18N - - synchronized(session) { - // Set it synced - this.getLogger().debug(MessageFormat.format("Setting value={0} for product={1},keyPart={2}", value, product.getName(), keyPart)); //NOI18N - this.setValueInSession(session, String.format(HTTP_PARAM_MASK, product.getName(), keyPart), value); - } - - // Trace message - this.getLogger().trace("EXIT!"); //NOI18N - } - - /** - * Somewhat setter in session - * - * @param session Session instance - * @param key Session key to set - * @param value Value to set - */ - @Override - public void setValueInSession (final HttpSession session, final String key, final Object value) { - // Trace message - this.getLogger().trace(MessageFormat.format("session={0},key={1},value={2} - CALLED!", session, key, value)); //NOI18N - - synchronized(session) { - // Set it synced - session.setAttribute(key, value); - } - - // Trace message - this.getLogger().trace("EXIT!"); //NOI18N - } - - /** - * Application starter - */ - private void start () { - // "Walk" over all products - for (final Product product : this.getProducts()) { - // Output data - this.getLogger().debug(MessageFormat.format("Product {0}, {1}: {2}", product.getName(), product.getTitle(), product.getPrice())); //NOI18N - } - - // Generate fake Customer instance - Customer customer = new PizzaServiceCustomer(); - - /* - * Need a least a gender ... :( See, that is why I don't like default - * constructors, you can easily miss something important and bam! You - * get an NPE. The fix here is, to have construtors (or factories) which - * requires all required instances that needs to be set to get a - * consitent object back. - */ - - // Gender is MALE now - customer.setGender(Gender.MALE); - - // Get iterator on all its fields - Iterator> it = customer.iterator(); - - // Output it - while (it.hasNext()) { - Map.Entry entry = it.next(); - this.getLogger().debug(MessageFormat.format("entry {0}={1}", entry.getKey(), entry.getValue())); //NOI18N - } - } - - /** - * Some "getter" for amount from session - * - * @param product Product instance - * @param session Session instance - * @return Amount as string - */ - @Override - public String getAmountFromSession (final Product product, final HttpSession session) { - // Trace message - this.getLogger().trace(MessageFormat.format("product={0},session={1} - CALLED!", product, session)); //NOI18N + this.getLogger().trace(MessageFormat.format("request={0},session={1} - CALLED!", request, session)); //NOI18N // Is product and session set? - if (product == null) { + if (request == null) { // Not set - throw new NullPointerException("product is null"); //NOI18N + throw new NullPointerException("request is null"); //NOI18N } else if (session == null) { // Not set throw new NullPointerException("session is null"); //NOI18N } - - // Get attribute - Object object = this.getValueFromSession(product, session, HTTP_PARAM_AMOUNT); - - // Is the object null? - if (object == null) { + + // Is something selected? + if (this.calculateTotalAmount(request, session) > 0) { // Trace message - this.getLogger().trace("Returning 0 - EXIT!"); //NOI18N - - // Not found - return "0"; //NOI18N - } - - // Trace message - this.getLogger().trace(MessageFormat.format("object={0} - EXIT!", object)); //NOI18N - - // Cast to string and return it - return (String) object; - } - - /** - * Some "getter" for choose from session - * - * @param product Product instance - * @param session Session instance - * @return Choose as string - */ - @Override - public String getChooseFromSession (final Product product, final HttpSession session) { - // Trace message - this.getLogger().trace(MessageFormat.format("product={0},session={1} - CALLED!", product, session)); //NOI18N - - // Is product and session set? - if (product == null) { - // Not set - throw new NullPointerException("product is null"); //NOI18N - } else if (session == null) { - // Not set - throw new NullPointerException("session is null"); //NOI18N - } - - // Get attribute - Object object = this.getValueFromSession(product, session, HTTP_PARAM_CHOOSE); - - // Is the object null? - if (object == null) { - // Not found - this.getLogger().debug(MessageFormat.format("Returning empty string for product={0} ...", product.getName())); //NOI18N + this.getLogger().trace("Returning empty string - EXIT!"); //NOI18N + + // Something has been choosen return ""; //NOI18N + } else { + // Trace message + this.getLogger().trace("Returning disabled=\"disabled\" - EXIT!"); //NOI18N + + // Nothing choosen yet + return "disabled=\"disabled\""; //NOI18N } - - // Trace message - this.getLogger().trace(MessageFormat.format("object={0} - CALLED!", object)); //NOI18N - - // Cast to string and return it - return (String) object; - } - - /** - * Handler for amount from request or session - * - * @param product Product instance - * @param request Request instance - * @param session Session instance - * @return Amount as string - */ - @Override - public String handleAmountFromRequestSession (final Product product, final HttpServletRequest request, final HttpSession session) { - // Trace message - this.getLogger().trace(MessageFormat.format("product={0},request={1},session={2} - CALLED!", product, request, session)); //NOI18N - - // Is product and session set? - if (product == null) { - // Not set - throw new NullPointerException("product is null"); //NOI18N - } else if (request == null) { - // Not set - throw new NullPointerException("request is null"); //NOI18N - } else if (session == null) { - // Not set - throw new NullPointerException("session is null"); //NOI18N - } - - // Init variabke - Object object; - - // Check request method - if (!"POST".equals(request.getMethod())) { //NOI18N - // Not POST, so get from session - return this.getAmountFromSession(product, session); - } else if (this.handleChooseFromRequestSession(product, request, session).isEmpty()) { - // Not choosen - this.clearSessionAttribute(product, session, HTTP_PARAM_AMOUNT); - this.getLogger().debug(MessageFormat.format("Unsetting for product={0} in session, returning zero ...", product.getName())); //NOI18N - return "0"; //NOI18N - } - - // Get attribute from request - object = request.getParameter(String.format(HTTP_PARAM_MASK, HTTP_PARAM_AMOUNT, product.getName())); - - // Is it set? - if (object instanceof String) { - // Try to parse it to integer - try { - Integer value = Integer.valueOf((String) object); - } catch (final NumberFormatException ex) { - // Not valid input - this.getLogger().warn(ex); - return "0"; //NOI18N - } - - // Then set it in session - this.setValueInSession(product, session, HTTP_PARAM_AMOUNT, object); - - // And return it - return (String) object; - } - - // Trace message - this.getLogger().trace("Calling getAmountFromSession() ..."); //NOI18N - - // Get attribute from session - return this.getAmountFromSession(product, session); } /** - * Handler for choosen (checkbox) from request or session + * Some "getter" for choosen (checkbox) from session * * @param product Product instance * @param request Request instance @@ -510,7 +385,7 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P * @return Amount as string */ @Override - public String handleChooseFromRequestSession (final Product product, final HttpServletRequest request, final HttpSession session) { + public String getPrintableChoosenFromRequestSession (final Product product, final HttpServletRequest request, final HttpSession session) { // Trace message this.getLogger().trace(MessageFormat.format("product={0},request={1},session={2} - CALLED!", product, request, session)); //NOI18N @@ -526,94 +401,79 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P throw new NullPointerException("session is null"); //NOI18N } - // Init variabke - Object object; + // Get element + this.getLogger().debug("Calling handleChooseFromRequestSession() ..."); //NOI18N + String choosen = this.handleChooseFromRequestSession(product, request, session); + this.getLogger().debug(MessageFormat.format("product={0},choosen={1}", product.getName(), choosen)); //NOI18N - // Check request method - if (!"POST".equals(request.getMethod())) { //NOI18N - // Not POST, so get from session - return this.getChooseFromSession(product, session); - } else if (this.isProductOrdered(product, session)) { - // Product is ordered - return this.getChooseFromSession(product, session); + // Must not be null + assert(choosen instanceof String): "choosen is null"; //NOI18N + + // Is it empty? + if (choosen.isEmpty()) { + // Not choosen + return "Nein"; } - // Get reqzest element - object = request.getParameter(String.format(HTTP_PARAM_MASK, HTTP_PARAM_CHOOSE, product.getName())); - this.getLogger().debug(MessageFormat.format("product={0},object={1}", product.getName(), object)); //NOI18N + // Get amount + String amount = this.handleAmountFromRequestSession(product, request, session); + this.getLogger().debug(MessageFormat.format("product={0},amount={1}", product.getName(), amount)); //NOI18N - // Is it null? - if (object == null) { - // Unset session - this.getLogger().debug(MessageFormat.format("Unsetting session for product={0} ...", product.getName())); //NOI18N - this.clearSessionAttribute(product, session, HTTP_PARAM_CHOOSE); - this.clearSessionAttribute(product, session, HTTP_PARAM_AMOUNT); + // Must not be null + assert(amount instanceof String): "amount is null"; //NOI18N - // Return empty string - return ""; //NOI18N + // Is it empty? + if (amount.isEmpty() || "0".equals(amount)) { //NOI18N + // Choosen, but no amount + return "Nein"; + } else { + // Is choosen + return "Ja"; } - - // Then set it in session - this.setValueInSession(product, session, HTTP_PARAM_CHOOSE, object); - - // Cast to string and return it - this.getLogger().debug(MessageFormat.format("product={0} - Returning {1} ...", product.getName(), object)); //NOI18N - return (String) object; } /** - * Some "getter" for choosen (checkbox) from session + * Some getter for printable value from session or an empty string for null. * - * @param product Product instance - * @param request Request instance * @param session Session instance - * @return Amount as string + * @param key Key to get + * @return Value from key, empty string for null */ @Override - public String getPrintableChoosenFromRequestSession (final Product product, final HttpServletRequest request, final HttpSession session) { + public Object getPrintableValeFromSession (final HttpSession session, final String key) { // Trace message - this.getLogger().trace(MessageFormat.format("product={0},request={1},session={2} - CALLED!", product, request, session)); //NOI18N - - // Is product and session set? - if (product == null) { - // Not set - throw new NullPointerException("product is null"); //NOI18N - } else if (request == null) { - // Not set - throw new NullPointerException("request is null"); //NOI18N - } else if (session == null) { - // Not set + this.getLogger().trace(MessageFormat.format("session={0},key={1} - CALLED", session, key)); //NOI18N + + // Are both parameter not null? + if (session == null) { + // Abort here throw new NullPointerException("session is null"); //NOI18N + } else if (key == null) { + // Abort here + throw new NullPointerException("key is null"); //NOI18N } + + // Now get it + Object value = this.getValueFromSession(session, key); + + // Debug message + this.getLogger().debug(MessageFormat.format("value={0}", value)); //NOI18N + + // Trace message + this.getLogger().trace(MessageFormat.format("Calling this.convertNullToEmpty({0}) ... - EXIT!", value)); //NOI18N - // Get element - String choosen = this.handleChooseFromRequestSession(product, request, session); - this.getLogger().debug(MessageFormat.format("product={0},choosen={1}", product.getName(), choosen)); //NOI18N - - // Must not be null - assert(choosen instanceof String): "choosen is null"; //NOI18N - - // Is it empty? - if (choosen.isEmpty()) { - // Not choosen - return "Nein"; - } - - // Get amount - String amount = this.handleAmountFromRequestSession(product, request, session); - this.getLogger().debug(MessageFormat.format("product={0},amount={1}", product.getName(), amount)); //NOI18N - - // Must not be null - assert(amount instanceof String): "amount is null"; //NOI18N + // Return actual value + return this.convertNullToEmpty(value); + } - // Is it empty? - if (amount.isEmpty() || "0".equals(amount)) { //NOI18N - // Choosen, but no amount - return "Nein"; - } else { - // Is choosen - return "Ja"; - } + /** + * Some "getter" for a an array of all products + * + * @return Unmarked products + */ + @Override + public Product[] getProducts () { + return this.products.values().toArray(new Product[this.products.size()]); } /** @@ -643,6 +503,7 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P } // Get choosen + this.getLogger().debug("Calling handleChooseFromRequestSession() ..."); //NOI18N String choosen = this.handleChooseFromRequestSession(product, request, session); this.getLogger().debug(MessageFormat.format("product={0},choosen={1}", product.getName(), choosen)); //NOI18N @@ -693,15 +554,35 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P } /** - * Checks whether the given product is choosen, request overules session. + * Gets an array of products from product iterator and unmarks them as ordered + * + * @param session HttpSession instance + * @return Unmarked products + */ + @Override + public Product[] getUnmarkedProducts (final HttpSession session) { + // Init array + Product[] array = this.getProducts(); + + // Unmark are all as ordered + for (final Product product : array) { + this.unmarkProductAsOrdered(product, session); + } + + // Return finished array + return array; + } + + /** + * Handler for amount from request or session * * @param product Product instance * @param request Request instance * @param session Session instance - * @return Whether the product is choosen + * @return Amount as string */ @Override - public boolean isProductChoosen (final Product product, final HttpServletRequest request, final HttpSession session) { + public String handleAmountFromRequestSession (final Product product, final HttpServletRequest request, final HttpSession session) { // Trace message this.getLogger().trace(MessageFormat.format("product={0},request={1},session={2} - CALLED!", product, request, session)); //NOI18N @@ -716,209 +597,186 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P // Not set throw new NullPointerException("session is null"); //NOI18N } - - // Get choosen - String choosen = this.handleChooseFromRequestSession(product, request, session); - this.getLogger().debug(MessageFormat.format("product={0},choosen={1}", product.getName(), choosen)); //NOI18N - - // Must not be null - assert(choosen instanceof String): "choosen is null"; //NOI18N - - // Is it not choosen? - if (choosen.isEmpty()) { + + // Init variabke + Object object; + + // Check request method + if (!"POST".equals(request.getMethod())) { //NOI18N + // Not POST, so get from session + return this.getAmountFromSession(product, session); + } else if (this.handleChooseFromRequestSession(product, request, session).isEmpty()) { // Not choosen - return false; + this.clearSessionAttribute(product, session, HTTP_PARAM_AMOUNT); + this.getLogger().debug(MessageFormat.format("Unsetting for product={0} in session, returning zero ...", product.getName())); //NOI18N + return "0"; //NOI18N } - - // Get amount - String amount = this.handleAmountFromRequestSession(product, request, session); - - // Must not be null - assert(amount instanceof String): "amount is not set"; //NOI18N - + + // Get attribute from request + object = request.getParameter(String.format(HTTP_PARAM_MASK, HTTP_PARAM_AMOUNT, product.getName())); + + // Is it set? + if (object instanceof String) { + // Try to parse it to integer + try { + Integer value = Integer.valueOf((String) object); + } catch (final NumberFormatException ex) { + // Not valid input + this.getLogger().warn(ex); + return "0"; //NOI18N + } + + // Then set it in session + this.setValueInSession(product, session, HTTP_PARAM_AMOUNT, object); + + // And return it + return (String) object; + } + // Trace message - this.getLogger().trace(MessageFormat.format("amount={0} - EXIT!", amount)); //NOI18N + this.getLogger().trace("Calling getAmountFromSession() ..."); //NOI18N - // Must not be empty and not 0 - return (!amount.isEmpty() && !"0".equals(amount)); //NOI18N + // Get attribute from session + return this.getAmountFromSession(product, session); } /** - * Calculates total price of all choosen products + * Checks whether the given product is choosen, request overules session. * + * @param product Product instance * @param request Request instance * @param session Session instance - * @return Total price of all choosen products + * @return Whether the product is choosen */ @Override - public float calculateTotalPrice (final HttpServletRequest request, final HttpSession session) { + public boolean isProductChoosen (final Product product, final HttpServletRequest request, final HttpSession session) { // Trace message - this.getLogger().trace(MessageFormat.format("request={0},session={1} - CALLED!", request, session)); //NOI18N + this.getLogger().trace(MessageFormat.format("product={0},request={1},session={2} - CALLED!", product, request, session)); //NOI18N // Is product and session set? - if (request == null) { + if (product == null) { + // Not set + throw new NullPointerException("product is null"); //NOI18N + } else if (request == null) { // Not set throw new NullPointerException("request is null"); //NOI18N } else if (session == null) { // Not set throw new NullPointerException("session is null"); //NOI18N } - - // Init total price - float totalPrice = 0.00f; - - // "Walk" over all products - for (final Product product : this.getProducts()) { - // Is this choosen? - if (this.isProductChoosen(product, request, session)) { - // Then add product's total price - this.getLogger().debug(MessageFormat.format("Calling getTotalPositionPriceFromRequestSession({0},request,session) ...", product.getName())); //NOI18N - totalPrice += this.getTotalPositionPriceFromRequestSession(product, request, session); - } - this.getLogger().debug(MessageFormat.format("product={0},totalPrice={1}", product.getName(), totalPrice)); //NOI18N + + // Get choosen + this.getLogger().debug("Calling handleChooseFromRequestSession() ..."); //NOI18N + String choosen = this.handleChooseFromRequestSession(product, request, session); + this.getLogger().debug(MessageFormat.format("product={0},choosen={1}", product.getName(), choosen)); //NOI18N + + // Must not be null + assert(choosen instanceof String): "choosen is null"; //NOI18N + + // Is it not choosen? + if (choosen.isEmpty()) { + // Not choosen + return false; } + // Get amount + String amount = this.handleAmountFromRequestSession(product, request, session); + + // Must not be null + assert(amount instanceof String): "amount is not set"; //NOI18N + // Trace message - this.getLogger().trace(MessageFormat.format(" totalPrice={0} - EXIT!", totalPrice)); //NOI18N + this.getLogger().trace(MessageFormat.format("amount={0} - EXIT!", amount)); //NOI18N - // Return total price - return totalPrice; + // Must not be empty and not 0 + return (!amount.isEmpty() && !"0".equals(amount)); //NOI18N } /** - * Calculates total amount of all choosen products + * Marks given product as choosen in session * - * @param request Request instance + * @param product Product to mark as ordered * @param session Session instance - * @return Total amount of all choosen products */ @Override - public int calculateTotalAmount (final HttpServletRequest request, final HttpSession session) { + public void markProductAsChoosen (final Product product, final HttpSession session) { // Trace message - this.getLogger().trace(MessageFormat.format("request={0},session={1} - CALLED!", request, session)); //NOI18N + this.getLogger().trace(MessageFormat.format("product={0},session={1} - CALLED!", product, session)); //NOI18N // Is product and session set? - if (request == null) { + if (product == null) { // Not set - throw new NullPointerException("request is null"); //NOI18N + throw new NullPointerException("product is null"); //NOI18N } else if (session == null) { // Not set throw new NullPointerException("session is null"); //NOI18N } - - // Init total price - int totalAmount = 0; - - // "Walk" over all products - for (final Product product : this.getProducts()) { - // Is this choosen? - if (this.isProductChoosen(product, request, session)) { - // Then add ordered amount - this.getLogger().debug(MessageFormat.format("Counting {0} ...", product.getName())); //NOI18N - - // Getting amount - String amount = this.getAmountFromSession(product, session); - - // Add it up - this.getLogger().debug(MessageFormat.format("amount={0}", amount)); //NOI18N - totalAmount += Integer.valueOf(amount); - } - this.getLogger().debug(MessageFormat.format("product={0},totalAmount={1}", product.getName(), totalAmount)); //NOI18N - } + + // Mark it as ordered by setting flag + this.getLogger().debug(MessageFormat.format("Marking product={0} as choosen.", product.getName())); //NOI18N + this.setValueInSession(product, session, HTTP_PARAM_CHOOSE, "1"); //NOI18N // Trace message - this.getLogger().trace(MessageFormat.format("totalAmount={0} - EXIT!", totalAmount)); //NOI18N - - // Return total price - return totalAmount; + this.getLogger().trace("EXIT!"); //NOI18N } /** - * Some "getter" for HTML code 'checked="checked"' if the product is choosen + * Marks given product as ordered in session * - * @param product Product instance - * @param request Request instance + * @param product Product to mark as ordered * @param session Session instance - * @return Whether the product is choosen */ @Override - public String getCheckedHtmlFromProduct (final Product product, final HttpServletRequest request, final HttpSession session) { + public void markProductAsOrdered (final Product product, final HttpSession session) { // Trace message - this.getLogger().trace(MessageFormat.format("product={0},request={1},session={2} - CALLED!", product, request, session)); //NOI18N + this.getLogger().trace(MessageFormat.format("product={0},session={1} - CALLED!", product, session)); //NOI18N // Is product and session set? if (product == null) { // Not set throw new NullPointerException("product is null"); //NOI18N - } else if (request == null) { - // Not set - throw new NullPointerException("request is null"); //NOI18N } else if (session == null) { // Not set throw new NullPointerException("session is null"); //NOI18N } + + // Mark it as ordered by setting flag + this.getLogger().debug(MessageFormat.format("Marking product={0} as ordered.", product.getName())); //NOI18N + this.setValueInSession(product, session, SESSION_ORDERED, "true"); //NOI18N - // First let's check if the product is choosen - if (this.isProductChoosen(product, request, session)) { - // Trace message - this.getLogger().trace("Returning checked=\"checked\" - EXIT!"); //NOI18N - - // Is choosen - return "checked=\"checked\""; //NOI18N - } else { - // Trace message - this.getLogger().trace("Returning empty string - EXIT!"); //NOI18N - - // Not choosen - return ""; //NOI18N - } + // Trace message + this.getLogger().trace("EXIT!"); //NOI18N } /** - * Some "getter" for HTML code 'disabled="disabled"' for e.g. submit buttons + * Somewhat setter in session * - * @param request Request instance * @param session Session instance - * @return Whether the product is choosen + * @param key Session key to set + * @param value Value to set */ @Override - public String getDisabledHtmlFromSession (final HttpServletRequest request, final HttpSession session) { - // Trace message - this.getLogger().trace(MessageFormat.format("request={0},session={1} - CALLED!", request, session)); //NOI18N - - // Is product and session set? - if (request == null) { - // Not set - throw new NullPointerException("request is null"); //NOI18N - } else if (session == null) { - // Not set - throw new NullPointerException("session is null"); //NOI18N - } - - // Is something selected? - if (this.calculateTotalAmount(request, session) > 0) { - // Trace message - this.getLogger().trace("Returning empty string - EXIT!"); //NOI18N - - // Something has been choosen - return ""; //NOI18N - } else { - // Trace message - this.getLogger().trace("Returning disabled=\"disabled\" - EXIT!"); //NOI18N + public void setValueInSession (final HttpSession session, final String key, final Object value) { + // Trace message + this.getLogger().trace(MessageFormat.format("session={0},key={1},value={2} - CALLED!", session, key, value)); //NOI18N - // Nothing choosen yet - return "disabled=\"disabled\""; //NOI18N + synchronized(session) { + // Set it synced + session.setAttribute(key, value); } + + // Trace message + this.getLogger().trace("EXIT!"); //NOI18N } /** - * Marks given product as ordered in session + * Unmarks given product as choosen in session * - * @param product Product to mark as ordered + * @param product Product to unmark as choosen * @param session Session instance */ @Override - public void markProductAsOrdered(final Product product, final HttpSession session) { + public void unmarkProductAsChoosen (final Product product, final HttpSession session) { // Trace message this.getLogger().trace(MessageFormat.format("product={0},session={1} - CALLED!", product, session)); //NOI18N @@ -932,8 +790,8 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P } // Mark it as ordered by setting flag - this.getLogger().debug(MessageFormat.format("Marking product={0} as ordered.", product.getName())); //NOI18N - this.setValueInSession(product, session, SESSION_ORDERED, "true"); //NOI18N + this.getLogger().debug(MessageFormat.format("Unmarking product={0} as choosen.", product.getName())); //NOI18N + this.clearSessionAttribute(product, session, HTTP_PARAM_CHOOSE); // Trace message this.getLogger().trace("EXIT!"); //NOI18N @@ -946,7 +804,7 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P * @param session Session instance */ @Override - public void unmarkProductAsOrdered(final Product product, final HttpSession session) { + public void unmarkProductAsOrdered (final Product product, final HttpSession session) { // Trace message this.getLogger().trace(MessageFormat.format("product={0},session={1} - CALLED!", product, session)); //NOI18N @@ -968,94 +826,267 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P } /** - * Some getter for printable value from session or an empty string for null. + * Adds given product to list or throws an exception if name is already found * - * @param session Session instance - * @param key Key to get - * @return Value from key, empty string for null + * @param name Internal name of product + * @param title Product's title + * @param price Price */ - @Override - public Object getPrintableValeFromSession (final HttpSession session, final String key) { + private void addProduct (final String name, final String title, final float price) { // Trace message - this.getLogger().trace(MessageFormat.format("session={0},key={1} - CALLED", session, key)); //NOI18N - - // Are both parameter not null? - if (session == null) { - // Abort here - throw new NullPointerException("session is null"); //NOI18N - } else if (key == null) { - // Abort here - throw new NullPointerException("key is null"); //NOI18N + this.getLogger().trace(MessageFormat.format("name={0},title={1},price={2} - CALLED!", name, title, price)); //NOI18N + + // Is the name already used? + if (this.isProductNameUsed(name)) { + // Something went wrong + throw new IllegalArgumentException(MessageFormat.format("product {0} is already used.", name)); //NOI18N } + + // Instance product + Product product = new PizzaProduct(name, title, price); + + // Debug message + this.getLogger().debug(MessageFormat.format("Adding product={0} ...", product)); //NOI18N - // Now get it - Object value = this.getValueFromSession(session, key); + // Add it + this.products.put(product.getName(), product); - // Debug message - this.getLogger().debug(MessageFormat.format("value={0}", value)); //NOI18N + // Trace message + this.getLogger().trace("EXIT!"); //NOI18N + } + /** + * Clears given parameter for product in session + * + * @param product Product instance + * @param session Session instance + * @param parameter Parameter to clear + */ + private void clearSessionAttribute (final Product product, final HttpSession session, final String parameter) { // Trace message - this.getLogger().trace(MessageFormat.format("Calling this.convertNullToEmpty({0}) ... - EXIT!", value)); //NOI18N + this.getLogger().trace(MessageFormat.format("produce={0},parameter={1},session={2} - CALLED!", product, parameter, session)); //NOI18N + + // Clear in session + this.getLogger().debug(MessageFormat.format("Clearing product={0},parameter={1} ...", product.getName(), parameter)); //NOI18N + this.setValueInSession(product, session, parameter, null); + + // Trace message + this.getLogger().trace("EXIT!"); //NOI18N + } + + /** + * Fills products list + * @todo Very hard-coded stuff ... + */ + private void fillProductsList () { + // Trace message + this.getLogger().trace("CALLED!"); //NOI18N + + // Add products + this.addProduct("italia", "Pizza Italia", 5.50f); //NOI18N + this.addProduct("diablo", "Pizza Diablo", 7.80f); //NOI18N + this.addProduct("bolognese", "Spagetti Bolognese", 11.95f); //NOI18N - // Return actual value - return this.convertNullToEmpty(value); + // Trace message + this.getLogger().trace("EXIT!"); //NOI18N } /** - * Gets an array of products from product iterator and unmarks them as ordered - * - * @param session HttpSession instance - * @return Unmarked products + * Some getter for value from session + * + * @param product Product instance + * @param session Session instance + * @param attribute Attribute to get value from + * @return Value from session */ - @Override - public Product[] getUnmarkedProducts (final HttpSession session) { - // Init array - Product[] array = this.getProducts(); + private Object getValueFromSession (final Product product, final HttpSession session, final String attribute) { + // Trace message + this.getLogger().trace(MessageFormat.format("product={0},session={1},attribute={2} - CALLED!", product, session, attribute)); //NOI18N - // Unmark are all as ordered - for (final Product product : array) { - this.unmarkProductAsOrdered(product, session); - } + // Init variable + Object value = this.getValueFromSession(session, String.format(HTTP_PARAM_MASK, product.getName(), attribute)); + + this.getLogger().debug(MessageFormat.format("product={0},attribute={1},value={2}", product.getName(), attribute, value)); //NOI18N - // Return finished array - return array; + // Trace message + this.getLogger().trace(MessageFormat.format("value={0} - EXIT!", value)); //NOI18N + + // Return it + return value; } /** - * Some "getter" for a an array of all products - * - * @return Unmarked products + * Some getter for value from session + * + * @param session Session instance + * @param key Key to get value from + * @return Value from session */ - @Override - public Product[] getProducts () { - return this.products.values().toArray(new Product[this.products.size()]); + private Object getValueFromSession (final HttpSession session, final String key) { + // Trace message + this.getLogger().trace(MessageFormat.format("session={043},key={1} - CALLED!", session, key)); //NOI18N + + // Init value + Object value = null; + + // Get it synchronized from session + synchronized (session) { + value = session.getAttribute(key); + } + + // Trace message + this.getLogger().trace(MessageFormat.format("value={0} - EXIT!", value)); //NOI18N + + // Return it + return value; } /** - * Marks given product as choosen in session + * Handler for choosen (checkbox) from request or session * - * @param product Product to mark as ordered + * @param product Product instance + * @param request Request instance * @param session Session instance + * @return Amount as string */ - @Override - public void markProductAsChoosen(final Product product, final HttpSession session) { + private String handleChooseFromRequestSession(final Product product, final HttpServletRequest request, final HttpSession session) { // Trace message - this.getLogger().trace(MessageFormat.format("product={0},session={1} - CALLED!", product, session)); //NOI18N + this.getLogger().trace(MessageFormat.format("product={0},request={1},session={2} - CALLED!", product, request, session)); //NOI18N // Is product and session set? if (product == null) { // Not set throw new NullPointerException("product is null"); //NOI18N + } else if (request == null) { + // Not set + throw new NullPointerException("request is null"); //NOI18N } else if (session == null) { // Not set throw new NullPointerException("session is null"); //NOI18N } + + // Init variabke + Object object; + + // Check request method + if (!"POST".equals(request.getMethod())) { //NOI18N + // Not POST, so get from session + return this.getChooseFromSession(product, session); + } else if (this.isProductOrdered(product, session)) { + // Product is ordered + return this.getChooseFromSession(product, session); + } + + // Get reqzest element + object = request.getParameter(String.format(HTTP_PARAM_MASK, HTTP_PARAM_CHOOSE, product.getName())); + this.getLogger().debug(MessageFormat.format("product={0},object={1}", product.getName(), object)); //NOI18N + + // Is it null? + if (object == null) { + // Unset session + this.getLogger().debug(MessageFormat.format("Unsetting session for product={0} ...", product.getName())); //NOI18N + this.clearSessionAttribute(product, session, HTTP_PARAM_CHOOSE); + this.clearSessionAttribute(product, session, HTTP_PARAM_AMOUNT); + + // Return empty string + return ""; //NOI18N + } + + // Then set it in session + this.setValueInSession(product, session, HTTP_PARAM_CHOOSE, object); - // Mark it as ordered by setting flag - this.getLogger().debug(MessageFormat.format("Marking product={0} as choosen.", product.getName())); //NOI18N - this.setValueInSession(product, session, HTTP_PARAM_CHOOSE, "1"); //NOI18N + // Cast to string and return it + this.getLogger().debug(MessageFormat.format("product={0} - Returning {1} ...", product.getName(), object)); //NOI18N + return (String) object; + } + + /** + * Checks whether given product is already used + * + * @param name Name of product + * @return Whether the given product's name is already used + */ + private boolean isProductNameUsed(final String name) { + // Trace message + this.getLogger().trace(MessageFormat.format("name={0} - CALLED!", name)); //NOI18N + // Is it found? + return this.products.containsKey(name); + } + + /** + * Checks if the product ordered? + * + * @param product + * @param session + * @return + */ + private boolean isProductOrdered(final Product product, final HttpSession session) { + // Trace message + this.getLogger().trace(MessageFormat.format("product={0},session={1} - CALLED!", product, session)); //NOI18N + + // Get session + Object isOrdered = this.getValueFromSession(product, session, SESSION_ORDERED); + this.getLogger().debug(MessageFormat.format("product={0},isOrdered={1}", product.getName(), isOrdered)); //NOI18N + + // Return result + return ("true".equals(isOrdered)); //NOI18N + } + + /** + * Somewhat setter in session + * + * @param product Product instance + * @param session Session instance + * @param keyPart Key part to include in final key + * @param value Value to set + */ + private void setValueInSession (final Product product, final HttpSession session, final String keyPart, final Object value) { + // Trace message + this.getLogger().trace(MessageFormat.format("product={0},session={1},keyPart={2},value={3} - CALLED!", product, session, keyPart, value)); //NOI18N + + synchronized(session) { + // Set it synced + this.getLogger().debug(MessageFormat.format("Setting value={0} for product={1},keyPart={2}", value, product.getName(), keyPart)); //NOI18N + this.setValueInSession(session, String.format(HTTP_PARAM_MASK, product.getName(), keyPart), value); + } + // Trace message this.getLogger().trace("EXIT!"); //NOI18N } + + /** + * Application starter + */ + private void start () { + // "Walk" over all products + for (final Product product : this.getProducts()) { + // Output data + this.getLogger().debug(MessageFormat.format("Product {0}, {1}: {2}", product.getName(), product.getTitle(), product.getPrice())); //NOI18N + } + + // Generate fake Customer instance + Customer customer = new PizzaServiceCustomer(); + + /* + * Need a least a gender ... :( See, that is why I don't like default + * constructors, you can easily miss something important and bam! You + * get an NPE. The fix here is, to have construtors (or factories) which + * requires all required instances that needs to be set to get a + * consitent object back. + */ + + // Gender is MALE now + customer.setGender(Gender.MALE); + + // Get iterator on all its fields + Iterator> it = customer.iterator(); + + // Output it + while (it.hasNext()) { + Map.Entry entry = it.next(); + this.getLogger().debug(MessageFormat.format("entry {0}={1}", entry.getKey(), entry.getValue())); //NOI18N + } + } + } diff --git a/web/form_handler/do_preview.jsp b/web/form_handler/do_preview.jsp index 9327d52c..f6e35822 100644 --- a/web/form_handler/do_preview.jsp +++ b/web/form_handler/do_preview.jsp @@ -26,6 +26,10 @@ if (app.isProductChoosen(product, request, session)) { // Then mark it as choosen app.markProductAsChoosen(product, session); + } else { + // Unmark it + app.unmarkProductAsChoosen(product, session); + app.unmarkProductAsOrdered(product, session); } } // Redirect to proper URL