2 * Copyright (C) 2015 Roland Haeder
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4 * This program is free software: you can redistribute it and/or modify
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5 * it under the terms of the GNU General Public License as published by
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6 * the Free Software Foundation, either version 3 of the License, or
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7 * (at your option) any later version.
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9 * This program is distributed in the hope that it will be useful,
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10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 * GNU General Public License for more details.
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14 * You should have received a copy of the GNU General Public License
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15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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17 package org.mxchange.addressbook.client.console;
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19 import java.util.Arrays;
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20 import java.util.HashMap;
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21 import java.util.Map;
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22 import java.util.Scanner;
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23 import org.mxchange.addressbook.application.AddressbookApplication;
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24 import org.mxchange.addressbook.application.Application;
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25 import org.mxchange.addressbook.client.BaseClient;
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26 import org.mxchange.addressbook.client.Client;
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27 import org.mxchange.addressbook.contact.Contact;
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28 import org.mxchange.addressbook.menu.Menu;
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29 import org.mxchange.addressbook.menu.MenuTools;
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30 import org.mxchange.addressbook.menu.console.ConsoleMenu;
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31 import org.mxchange.addressbook.menu.item.SelectableMenuItem;
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32 import org.mxchange.addressbook.menu.item.console.ConsoleMenuItem;
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35 * A client for the console
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37 * @author Roland Haeder
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39 public class ConsoleClient extends BaseClient implements Client {
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43 private final Map<String, Menu> menus;
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46 * Scanner instance for reading data from console input
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48 private final Scanner scanner;
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51 * Parameterless constructor
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52 * @param application An instance of an Application class
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54 public ConsoleClient (final Application application) {
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57 // Set application instance
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58 this.setApplication(application);
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60 // Init contact manager here
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61 this.initContactManager(this);
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63 // Init scanner instance
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64 this.scanner = new Scanner(System.in);
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67 this.menus = new HashMap<>(10);
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70 this.fillConsoleMenuMap();
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74 * Displays a textual address "box" of given contact
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76 * @param contact Contact to show address for
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80 public void displayAddressBox (final Contact contact) {
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81 // Simple display ...
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83 this.displayMessage("Strasse, PLZ Ort, Land: " + contact.getStreet() + "\n" + contact.getZipCode() + " " + contact.getCity() + "\n" + contact.getCountryCode());
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87 * Displays textural message to the user
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91 public void displayMessage (final String message) {
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92 System.out.println(message);
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96 * Displays a textual name "box" of given contact
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98 * @param contact Contact to show name for
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101 public void displayNameBox (final Contact contact) {
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102 // Get translated gender as the user may want to see "Mr.", "Mrs."
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103 String gender = contact.getTranslatedGender();
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105 // Get company name
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106 String companyName = contact.getCompanyName();
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108 // If it is empty/null, then assume private contact
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109 if ((companyName == null) || (companyName.isEmpty())) {
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110 // Now put all together: gender, surname, family name
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112 this.displayMessage("Anrede, Vorname, Name: " + gender + " " + contact.getSurname() + " " + contact.getFamilyName());
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115 this.displayMessage("Firma: " + companyName + "\nAnsprechpartner: " + gender + " " + contact.getSurname() + " " + contact.getFamilyName());
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120 * Displays a textual other data "box" of given contact
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122 * @param contact Contact to show other data for
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125 public void displayOtherDataBox (final Contact contact) {
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126 // Cellphone and such ...
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127 this.displayMessage("Telefonnumer: " + contact.getPhoneNumber() + "\nFaxnummer: " + contact.getFaxNumber() + "\nHandy: " + contact.getCellphoneNumber() + "\nKommentar:\n" + contact.getComment());
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131 public void doUserChoice () throws Exception {
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132 // Get all access keys from menu
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133 char[] accessKeys = MenuTools.getAccessKeysFromMenuMap(this.menus, this.getCurrentMenu());
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135 // Output textural message and ask for a char as input
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136 char choice = this.enterChar(accessKeys, "Bitte Auswahl eingeben (0=Beenden/Zurück in's vorherhige Menü): ");
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138 // @TODO Rewrite this ugly switch() block
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140 case '1': // Enter/add own data
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141 this.getContactManager().enterOwnData();
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144 case '2': // Change own data
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145 this.getContactManager().changeOwnData();
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148 case '3': // Add new addess
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149 this.getContactManager().addOtherAddress();
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152 case '4': // Change other addess
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153 this.getContactManager().changeOtherAddress();
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156 case '5': // Delete other address
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157 this.getContactManager().deleteOtherAddress();
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160 case '0': // Program exit
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161 this.disableIsRunning();
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165 // @TODO throw on exception
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166 throw new Exception("choice " + choice + " invalid");
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171 * Asks the the user to enter a single character which must match validChars
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172 * @param validChars Valid chars that are accepted
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173 * @param message Message to user
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174 * @return Allowed character
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177 public char enterChar (final char[] validChars, final String message) {
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180 // Sort array, else binarySearch() won't work
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181 Arrays.sort(validChars);
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183 // Keep asking until valid char has been entered
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184 while (Arrays.binarySearch(validChars, input) < 0) {
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186 System.out.print(message);
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189 input = this.readChar();
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192 // Return read char
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197 * Reads a string of minimum and maximum length from the user
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198 * @param minLength Minimum length of the string to read
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199 * @param maxLength Maximum length of the string to read
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200 * @param message Message to user
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204 public String enterString (final int minLength, final int maxLength, final String message) {
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206 String input = null;
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208 // Check if it is to short or to long
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209 while ((input == null) || (input.length() < minLength) || (input.length() > maxLength)) {
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211 System.out.print(message);
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214 input = this.readString();
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222 * Returns a console menu item
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224 * @param accessKey Key to access the menu
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225 * @param text Text to show to user
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226 * @return A SelectableMenuItem
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227 * @todo Make sure the access key is unique
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230 public SelectableMenuItem getMenuItem (final char accessKey, final String text) {
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231 // Return a new console menu item
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232 return new ConsoleMenuItem(accessKey,text);
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236 * Shows textural menu on console
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239 public void showCurrentMenu () {
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240 this.showMenu(this.getCurrentMenu());
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244 public void showEntry (final SelectableMenuItem item) {
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245 // Access key then text
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246 this.displayMessage("[" + item.getAccessKey() + "] " + item.getText());
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250 * Shows a textural message to the user
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253 public void showWelcome () {
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254 this.displayMessage("Welcome to " + AddressbookApplication.APP_TITLE + " v" + AddressbookApplication.APP_VERSION);
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255 this.displayMessage("");
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256 this.displayMessage("Copyright(c) 2015 by Roland Haeder, this is free software");
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259 this.getLogger().debug("Intro shown to user");
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263 * Fills menu map with menu entries
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265 private void fillConsoleMenuMap () {
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266 // Initialize first (main) menu
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267 Menu menu = new ConsoleMenu("main", this);
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270 this.menus.put("main", menu);
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274 * "Getter" for given menu type
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276 * @param menuType Menu type instance to return
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277 * @return Menu or null if not found
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279 private Menu getMenu (final String menuType) {
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280 // Default is not found
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284 if (this.menus.containsKey(menuType)) {
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286 menu = this.menus.get(menuType);
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294 * Reads one character
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297 private char readChar () {
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299 String input = this.scanner.nextLine();
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301 // This must be only one character
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302 if (input.length() != 1) {
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307 // Get char from first (and only) position
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308 return input.charAt(0);
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312 * Reads a string from a scanner until RETURN is pressed
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314 * @return Read string from scanner
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316 private String readString () {
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317 return this.scanner.nextLine();
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323 * @param menuType Given menu to show
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325 private void showMenu (final String menuType) {
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326 Menu menu = this.getMenu(menuType);
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328 // Is the menu set?
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329 if (!(menu instanceof Menu)) {
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331 // @todo Own exception?
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332 throw new NullPointerException("Menu '" + menuType + "' not found.");
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