2 * Copyright (C) 2015 Roland Haeder
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
17 package org.mxchange.pizzaapplication.application;
19 import java.io.IOException;
20 import java.sql.SQLException;
21 import java.util.Iterator;
22 import javax.servlet.ServletContext;
23 import javax.servlet.ServletException;
24 import javax.servlet.http.HttpServletRequest;
25 import javax.servlet.http.HttpServletResponse;
26 import javax.servlet.http.HttpSession;
27 import org.mxchange.jcore.application.Application;
28 import org.mxchange.jcore.exceptions.BadTokenException;
29 import org.mxchange.jcore.exceptions.UnsupportedDatabaseBackendException;
30 import org.mxchange.pizzaapplication.category.Category;
31 import org.mxchange.pizzaapplication.exceptions.CategoryTitleAlreadyUsedException;
32 import org.mxchange.pizzaapplication.exceptions.ProductTitleAlreadyUsedException;
33 import org.mxchange.pizzaapplication.item.AddableBasketItem;
34 import org.mxchange.pizzaapplication.product.Product;
38 * @author Roland Haeder
40 public interface PizzaApplication extends Application {
42 * HTTP parameter "amount"
44 public static final String HTTP_PARAM_AMOUNT = "amount"; //NOI18N
47 * HTTP parameter "item_id"
49 public static final String HTTP_PARAM_ITEM_ID = "itemId"; //NOI18N
52 * HTTP parameter "type"
54 public static final String HTTP_PARAM_ITEM_TYPE = "itemType"; //NOI18N
57 * Session key "ordered"
59 public static final String SESSION_ORDERED = "ordered"; //NOI18N
62 * Mask for all parameters
63 * @deprecated Please refacture!
66 static final String HTTP_PARAM_MASK = "%s[%s]"; //NOI18N
69 * Some "getter" for amount from session
71 * @param product Product instance
72 * @param session Session instance
73 * @return Amount as string
74 * @deprecated Old code
77 public String getAmountFromSession (final Product product, final HttpSession session);
80 * Some "getter" for choose from session
82 * @param product Product instance
83 * @param session Session instance
84 * @return Choose as string
85 * @deprecated Old code
88 public String getChooseFromSession (final Product product, final HttpSession session);
91 * Handler for amount from session
93 * @param product Product instance
94 * @param request Request instance
95 * @param session Session instance
96 * @return Amount as string
97 * @deprecated Old code
100 public String handleAmountFromRequestSession (final Product product, final HttpServletRequest request, final HttpSession session);
103 * Some "getter" for printable choosen (checkbox) from request or session
105 * @param product Product instance
106 * @param request Request instance
107 * @param session Session instance
108 * @return Amount as string
109 * @deprecated Old code
112 public String getPrintableChoosenFromRequestSession (final Product product, final HttpServletRequest request, final HttpSession session);
115 * Some "getter" for total price of position from request or session.
116 * Single price and amount is multiplyed.
118 * @param product Product instance
119 * @param request Request instance
120 * @param session Session instance
121 * @return Amount as string
122 * @deprecated Old code
125 public float getTotalPositionPriceFromRequestSession (final Product product, final HttpServletRequest request, final HttpSession session);
128 * Initializes this instance with given ServletContext
130 * @param context Servlet context
131 * @throws org.mxchange.jcore.exceptions.UnsupportedDatabaseBackendException If the backend is unsupported
132 * @throws java.sql.SQLException If an SQL error occurs
133 * @throws java.io.IOException If an IO error occurs
134 * @throws org.mxchange.jcore.exceptions.BadTokenException If a bad token was found
136 public void init (final ServletContext context) throws UnsupportedDatabaseBackendException, SQLException, IOException, BadTokenException;
139 * Checks whether the given product is choosen, request overules session.
141 * @param product Product instance
142 * @param request Request instance
143 * @param session Session instance
144 * @return Whether the product is choosen
145 * @deprecated Old lost code
148 public boolean isProductChoosen (final Product product, final HttpServletRequest request, final HttpSession session);
151 * Calculates total price of all choosen products
153 * @param request Request instance
154 * @param session Session instance
155 * @return Total price of all choosen products
156 * @throws javax.servlet.ServletException If something unexpected happened
158 public float calculateTotalPrice (final HttpServletRequest request, final HttpSession session) throws ServletException;
161 * Calculates total amount of all choosen products
163 * @param request Request instance
164 * @param session Session instance
165 * @return Total amount of all choosen products
166 * @throws javax.servlet.ServletException If something unexpected happened
168 public int calculateTotalAmount (final HttpServletRequest request, final HttpSession session) throws ServletException;
171 * Some "getter" for HTML code 'checked="checked"' if the product is choosen
173 * @param product Product instance
174 * @param request Request instance
175 * @param session Session instance
176 * @return Whether the product is choosen
178 public String getCheckedHtmlFromProduct (final Product product, final HttpServletRequest request, final HttpSession session);
181 * Some "getter" for HTML code 'disabled="disabled"' for e.g. submit buttons
183 * @param request Request instance
184 * @param session Session instance
185 * @return Whether the product is choosen
186 * @throws javax.servlet.ServletException If something unexpected happened
188 public String getDisabledHtmlFromSession (final HttpServletRequest request, final HttpSession session) throws ServletException;
191 * Marks given product as ordered in session
193 * @param product Product to mark as ordered
194 * @param session Session instance
195 * @deprecated Old code
198 public void markProductAsOrdered(final Product product, final HttpSession session);
201 * Marks given product as choosen in session
203 * @param product Product to mark as ordered
204 * @param session Session instance
205 * @deprecated Old code
208 public void markProductAsChoosen(final Product product, final HttpSession session);
211 * Unmarks given product as ordered in session
213 * @param product Product to unmark as ordered
214 * @param session Session instance
215 * @deprecated Old code
218 public void unmarkProductAsOrdered(final Product product, final HttpSession session);
221 * Unmarks given product as choosen in session
223 * @param product Product to unmark as choosen
224 * @param session Session instance
225 * @deprecated Old code
228 public void unmarkProductAsChoosen(final Product product, final HttpSession session);
231 * Some getter for printable value from session or an empty string for null.
233 * @param session Session instance
234 * @param key Key to get
235 * @return Value from key, empty string for null
237 public Object getPrintableValeFromSession (final HttpSession session, final String key);
240 * Somewhat setter in session
242 * @param session Session instance
243 * @param key Session key to set
244 * @param value Value to set
246 public void setValueInSession (final HttpSession session, final String key, final Object value);
249 * Some "getter" for a an array of only available products
251 * @return Only available products
252 * @throws javax.servlet.ServletException If anything went wrong
254 public Iterator<Product> getAvailableProducts () throws ServletException;
257 * Some "getter" for a an array of all products
259 * @return All products
260 * @throws javax.servlet.ServletException If anything went wrong
262 public Iterator<Product> getAllProducts () throws ServletException;
265 * Some "getter" for a an array of all categories
267 * @return All categories
268 * @throws javax.servlet.ServletException If anything went wrong
270 public Iterator<Category> getAllCategories () throws ServletException;
273 * Checks if given Product instance is available and returns a printable
274 * (human-readable) string.
276 * @param product Product instance to check
277 * @return Human-readable version of product availability
279 public String getPrintableProduktAvailability (final Product product);
282 * Returns a printable (human-readable) string of product's category
284 * @param product Product instance to check
285 * @return Human-readable version of product availability
286 * @throws javax.servlet.ServletException If something unexpected happened
288 public String getPrintableProduktCategory (final Product product) throws ServletException;
291 * Marks all choosen products as ordered
293 * @param request Request instance
294 * @param session Session instance
295 * @throws javax.servlet.ServletException If something unexpected happened
296 * @deprecated Old code
299 public void markAllChoosenProductsAsOrdered (final HttpServletRequest request, final HttpSession session) throws ServletException;
302 * Adds given category data from request to database
304 * @param request Request instance
305 * @throws javax.servlet.ServletException If something unexpected happened
306 * @throws org.mxchange.pizzaapplication.exceptions.CategoryTitleAlreadyUsedException If the given title is already used
308 public void doAdminAddCategory (final HttpServletRequest request) throws ServletException, CategoryTitleAlreadyUsedException;
311 * Adds given product data from request to database
313 * @param request Request instance
314 * @throws javax.servlet.ServletException If something unexpected happened
315 * @throws org.mxchange.pizzaapplication.exceptions.ProductTitleAlreadyUsedException If the given product title is already used
317 public void doAdminAddProduct (final HttpServletRequest request) throws ServletException, ProductTitleAlreadyUsedException;
320 * Generates link HTML code for given category's parent id, if set. This
321 * link then points to products.jsp?category_id=x
323 * @param category Category instance
326 public String generateLinkForParent (final Category category);
329 * Handles admin product form requests
331 * @param request Request instance
332 * @param response Response instance
333 * @throws ServletException If something unexpected happened
335 public void doAdminHandleProductForms (final HttpServletRequest request, final HttpServletResponse response) throws ServletException;
338 * Handles admin category form requests
340 * @param request Request instance
341 * @param response Response instance
342 * @throws ServletException If something unexpected happened
344 public void doAdminHandleCategoryForms (final HttpServletRequest request, final HttpServletResponse response) throws ServletException;
347 * Some "getter" for a Product instance from given item
348 * @param item Item instance
349 * @return A Product instance
350 * @throws ServletException If something unexpected happened
352 public Product getProduct (final AddableBasketItem item) throws ServletException;