From: Roland Haeder Date: Tue, 11 Aug 2015 12:26:30 +0000 (+0200) Subject: Added product database frontend class and interface X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=81ba2433d422f0873800ebfe65d64def6e30ad56;p=pizzaservice-war.git Added product database frontend class and interface Signed-off-by:Roland Häder --- diff --git a/src/java/org/mxchange/pizzaapplication/application/PizzaServiceApplication.java b/src/java/org/mxchange/pizzaapplication/application/PizzaServiceApplication.java index 4ce28a5b..b3199752 100644 --- a/src/java/org/mxchange/pizzaapplication/application/PizzaServiceApplication.java +++ b/src/java/org/mxchange/pizzaapplication/application/PizzaServiceApplication.java @@ -107,10 +107,10 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P private PizzaServiceApplication () { // Init products instance this.products = new TreeMap<>(); - + // Init bundle this.initBundle(); - + // Fill products list this.fillProductsList(); } @@ -126,7 +126,7 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P 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 @@ -138,27 +138,27 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P // 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; } @@ -174,7 +174,7 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P 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 @@ -183,10 +183,10 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P // 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? @@ -197,24 +197,24 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P } 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. @@ -272,7 +272,7 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P public String getCheckedHtmlFromProduct (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 @@ -284,12 +284,12 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P // 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 { @@ -321,10 +321,10 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P // 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 @@ -359,18 +359,18 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P // 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 - + // Nothing choosen yet return "disabled=\"disabled\""; //NOI18N } @@ -443,7 +443,7 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P public Object getPrintableValeFromSession (final HttpSession session, final String key) { // 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 @@ -452,13 +452,13 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P // 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 @@ -563,7 +563,7 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P 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); @@ -597,10 +597,10 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P // 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 @@ -611,10 +611,10 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P 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 @@ -711,7 +711,7 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P // 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 choosen.", product.getName())); //NOI18N this.setValueInSession(product, session, HTTP_PARAM_CHOOSE, "1"); //NOI18N @@ -739,7 +739,7 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P // 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 @@ -835,13 +835,13 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P private void addProduct (final String name, final String title, final float price) { // Trace message 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); @@ -865,15 +865,15 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P 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 ... @@ -881,7 +881,7 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P 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 @@ -925,10 +925,10 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P private Object getValueFromSession (final HttpSession session, final String key) { // Trace message this.getLogger().trace(MessageFormat.format("session={0},key={1} - CALLED!", session, key)); //NOI18N - + // Init value Object value = null; - + // Get it synchronized from session synchronized (session) { value = session.getAttribute(key); @@ -964,10 +964,10 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P // 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 @@ -986,18 +986,18 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P // 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); @@ -1005,7 +1005,7 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P this.getLogger().debug(MessageFormat.format("product={0} - Returning {1} ...", product.getName(), object)); //NOI18N return (String) object; } - + /** * Checks whether given product is already used * @@ -1019,7 +1019,7 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P // Is it found? return this.products.containsKey(name); } - + /** * Checks if the product ordered? * @@ -1030,7 +1030,7 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P 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 @@ -1068,10 +1068,10 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P // 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 @@ -1079,10 +1079,10 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P * 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(); @@ -1092,5 +1092,4 @@ public class PizzaServiceApplication extends BasePizzaServiceSystem implements P this.getLogger().debug(MessageFormat.format("entry {0}={1}", entry.getKey(), entry.getValue())); //NOI18N } } - } diff --git a/src/java/org/mxchange/pizzaapplicationk/database/frontend/contact/PizzaProductDatabaseFrontend.java b/src/java/org/mxchange/pizzaapplicationk/database/frontend/contact/PizzaProductDatabaseFrontend.java new file mode 100644 index 00000000..97b19cf0 --- /dev/null +++ b/src/java/org/mxchange/pizzaapplicationk/database/frontend/contact/PizzaProductDatabaseFrontend.java @@ -0,0 +1,98 @@ +/* + * Copyright (C) 2015 Roland Haeder + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ +package org.mxchange.pizzaapplicationk.database.frontend.contact; + +import java.sql.SQLException; +import java.text.MessageFormat; +import org.mxchange.jcore.database.frontend.BaseDatabaseFrontend; +import org.mxchange.jcore.database.storage.Storeable; +import org.mxchange.jcore.exceptions.BadTokenException; +import org.mxchange.jcore.exceptions.UnsupportedDatabaseBackendException; +import org.mxchange.pizzaapplication.product.Product; + +/** + * Stores and retrieves Contact instances + * + * @author Roland Haeder + */ +public class PizzaProductDatabaseFrontend extends BaseDatabaseFrontend implements ProductFrontend { + + /** + * Basic constrcutor + */ + protected PizzaProductDatabaseFrontend () { + // Trace message + this.getLogger().trace("CALLED!"); //NOI18N + + // Set "table" name + this.setTableName("contacts"); //NOI18N + + try { + // Initalize backend + this.initBackend(); + } catch (final UnsupportedDatabaseBackendException | SQLException ex) { + // Abort program + this.abortProgramWithException(ex); + } + } + + /** + * Shuts down the database layer + */ + @Override + public void doShutdown () { + // Trace message + this.getLogger().trace("CALLED!"); //NOI18N + + // Shutdown backend + this.getBackend().doShutdown(); + + // Trace message + this.getLogger().trace("EXIT!"); //NOI18N + } + + /** + * Parses given line from database backend into a Storeable instance. Please + * note that not all backends need this. + * + * @param line Line from database backend + * @return A Storeable instance + */ + @Override + public Storeable parseLineToStoreable (final String line) throws BadTokenException { + // Trace message + this.getLogger().trace(MessageFormat.format("line={0} - CALLED!", line)); //NOI18N + + // Call inner method + Product product = this.parseLineToProduct(line); + + // Debug message + this.getLogger().debug(MessageFormat.format("product={0}", product)); + + // Return it + return (Storeable) product; + } + + /** + * Parses given line to a Product instance + * @param line + * @return A Product instance from given line + */ + private Product parseLineToProduct (final String line) { + throw new UnsupportedOperationException("Not supported yet."); + } +} diff --git a/src/java/org/mxchange/pizzaapplicationk/database/frontend/contact/ProductFrontend.java b/src/java/org/mxchange/pizzaapplicationk/database/frontend/contact/ProductFrontend.java new file mode 100644 index 00000000..a04499ec --- /dev/null +++ b/src/java/org/mxchange/pizzaapplicationk/database/frontend/contact/ProductFrontend.java @@ -0,0 +1,27 @@ +/* + * Copyright (C) 2015 Roland Häder + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ +package org.mxchange.pizzaapplicationk.database.frontend.contact; + +import org.mxchange.jcore.database.frontend.DatabaseFrontend; + +/** + * An interface for product database frontends + * + * @author Roland Häder + */ +public interface ProductFrontend extends DatabaseFrontend { +}