Java tutorial
/* * Gw2InfoViewer - Java Swing based application that reads the Guild Wars 2 JSON API * Copyright (C) 2013 Robert Smieja * * 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 <http://www.gnu.org/licenses/>. */ package org.gw2InfoViewer.controllers; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStream; import java.util.Arrays; import java.util.Collections; import java.util.List; import java.util.logging.Level; import java.util.logging.Logger; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpGet; import org.gw2InfoViewer.views.MainView; import org.gw2InfoViewer.factories.HttpsConnectionFactory; import org.gw2InfoViewer.models.EventList; import org.gw2InfoViewer.maps.EventNames; import org.gw2InfoViewer.maps.MapNames; import org.gw2InfoViewer.maps.WorldNames; import org.gw2InfoViewer.models.Options; import org.gw2InfoViewer.services.json.JsonConversionService; import org.gw2InfoViewer.services.settings.SettingsService; /** * * @author Robert Smieja */ public class MainController { private static final String API_BASE_URL = "https://api.guildwars2.com/"; private static final String API_VERSION = "v1/"; private static final String API_EVENTS = "events.json"; private static final String API_EVENT_NAMES = "event_names.json"; private static final String API_MAP_NAMES = "map_names.json"; private static final String API_WORLD_NAMES = "world_names.json"; private static final String API_WVW = "wvw/"; private static final String API_WVW_MATCHES = "matches.json"; private static final String API_WVW_MATCH_DETAILS = "match_details.json"; private static final String API_WVW_OBJECTIVE_NAMES = "objective_names.json"; private static final String API_ITEMS = "items.json"; private static final String API_ITEM_DETAILS = "item_details.json"; private static final String API_RECIPES = "recipes.json"; private static final String API_RECIPE_DETAILS = "recipe_details.json"; private static final byte[] StartComRootCertificate = { 45, 45, 45, 45, 45, 66, 69, 71, 73, 78, 32, 67, 69, 82, 84, 73, 70, 73, 67, 65, 84, 69, 45, 45, 45, 45, 45, 13, 10, 77, 73, 73, 72, 104, 122, 67, 67, 66, 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109, 81, 49, 107, 102, 97, 98, 119, 111, 54, 89, 105, 103, 85, 90, 52, 76, 90, 13, 10, 56, 100, 67, 65, 87, 90, 118, 76, 77, 100, 105, 98, 68, 52, 120, 51, 84, 114, 86, 111, 105, 118, 74, 115, 57, 105, 81, 79, 76, 87, 120, 119, 120, 88, 80, 82, 51, 104, 84, 81, 99, 89, 43, 50, 48, 51, 115, 67, 57, 117, 79, 52, 49, 65, 108, 117, 97, 53, 53, 49, 104, 68, 110, 109, 13, 10, 102, 121, 87, 108, 56, 107, 103, 65, 119, 75, 81, 66, 50, 106, 56, 61, 13, 10, 45, 45, 45, 45, 45, 69, 78, 68, 32, 67, 69, 82, 84, 73, 70, 73, 67, 65, 84, 69, 45, 45, 45, 45, 45, 13, 10 }; private static MainController instance; private static MainView view; private MainController() { EventList eventList; EventNames eventNames; WorldNames worldNames; MapNames mapNames; Options options = null; try { options = SettingsService.LoadSettings(); } catch (FileNotFoundException ex) { Logger.getLogger(MainController.class.getName()).log(Level.SEVERE, null, ex); } catch (IOException ex) { System.out.println("Error loading settings!"); Logger.getLogger(MainController.class.getName()).log(Level.SEVERE, null, ex); } if (options == null) { System.out.println("Settings not found, using defaults."); options = new Options(); } view = new MainView(this, options); try { eventNames = getEventNames(options); mapNames = getMapNames(options); worldNames = getWorldNames(options); eventList = getEventList(eventNames, mapNames, worldNames, options); } catch (IOException ex) { Logger.getLogger(MainController.class.getName()).log(Level.SEVERE, null, ex); return; } view.setEventList(eventList); view.setEventNames(eventNames); view.setWorldNames(worldNames); view.setMapNames(mapNames); } public static MainController getInstance() { if (instance == null) { instance = new MainController(); } return instance; } public static EventList getEventList(EventNames eventNames, MapNames mapNames, WorldNames worldNames, Options options) throws IOException { String eventsUrl = API_BASE_URL + API_VERSION + API_EVENTS; eventsUrl += "?world_id=" + options.getWorld(); eventsUrl += "&map_id=" + options.getMap(); eventsUrl += "&event_id=" + options.getEventId(); EventList eventList; HttpClient httpClient; HttpGet getEvents; getEvents = new HttpGet(eventsUrl); if (options.isProxyEnabled()) { httpClient = HttpsConnectionFactory.getHttpsClientWithProxy(StartComRootCertificate, options.getProxyAddress(), options.getProxyPort()); } else { httpClient = HttpsConnectionFactory.getHttpsClient(StartComRootCertificate); } InputStream json = httpClient.execute(getEvents).getEntity().getContent(); eventList = JsonConversionService.parseEventList(json, eventNames, mapNames, worldNames); httpClient.getConnectionManager().shutdown(); Collections.sort(eventList.getEventList()); return eventList; } public static EventList getEventListWithoutNames(Options options) throws IOException { String eventsUrl = API_BASE_URL + API_VERSION + API_EVENTS; eventsUrl += "?world_id=" + options.getWorld(); eventsUrl += "&map_id=" + options.getMap(); eventsUrl += "&event_id=" + options.getEventId(); EventList eventList; HttpClient httpClient; HttpGet getEvents; getEvents = new HttpGet(eventsUrl); if (options.isProxyEnabled()) { httpClient = HttpsConnectionFactory.getHttpsClientWithProxy(StartComRootCertificate, options.getProxyAddress(), options.getProxyPort()); } else { httpClient = HttpsConnectionFactory.getHttpsClient(StartComRootCertificate); } eventList = JsonConversionService .parseEventListWithoutNames(httpClient.execute(getEvents).getEntity().getContent()); httpClient.getConnectionManager().shutdown(); return eventList; } public static EventNames getEventNames(Options options) throws IOException { String eventNamesUrl = API_BASE_URL + API_VERSION + API_EVENT_NAMES; EventNames eventNames; HttpClient httpClient; HttpGet getEventNames; String eventNamesJson; getEventNames = new HttpGet(eventNamesUrl); if (options.isProxyEnabled()) { httpClient = HttpsConnectionFactory.getHttpsClientWithProxy(StartComRootCertificate, options.getProxyAddress(), options.getProxyPort()); } else { httpClient = HttpsConnectionFactory.getHttpsClient(StartComRootCertificate); } eventNamesJson = HttpsConnectionFactory.getStringFromHttpResponse(httpClient.execute(getEventNames)); eventNames = JsonConversionService.parseEventNames(eventNamesJson); httpClient.getConnectionManager().shutdown(); return eventNames; } public static WorldNames getWorldNames(Options options) throws IOException { String eventNamesUrl = API_BASE_URL + API_VERSION + API_WORLD_NAMES; WorldNames worldNames; HttpClient httpClient; HttpGet getWorldNames; String worldNamesJson; getWorldNames = new HttpGet(eventNamesUrl); if (options.isProxyEnabled()) { httpClient = HttpsConnectionFactory.getHttpsClientWithProxy(StartComRootCertificate, options.getProxyAddress(), options.getProxyPort()); } else { httpClient = HttpsConnectionFactory.getHttpsClient(StartComRootCertificate); } worldNamesJson = HttpsConnectionFactory.getStringFromHttpResponse(httpClient.execute(getWorldNames)); worldNames = JsonConversionService.parseWorldNames(worldNamesJson); httpClient.getConnectionManager().shutdown(); return worldNames; } public static MapNames getMapNames(Options options) throws IOException { String eventNamesUrl = API_BASE_URL + API_VERSION + API_MAP_NAMES; MapNames mapNames; HttpClient httpClient; HttpGet getMapNames; String mapNamesJson; getMapNames = new HttpGet(eventNamesUrl); if (options.isProxyEnabled()) { httpClient = HttpsConnectionFactory.getHttpsClientWithProxy(StartComRootCertificate, options.getProxyAddress(), options.getProxyPort()); } else { httpClient = HttpsConnectionFactory.getHttpsClient(StartComRootCertificate); } mapNamesJson = HttpsConnectionFactory.getStringFromHttpResponse(httpClient.execute(getMapNames)); mapNames = JsonConversionService.parseMapNames(mapNamesJson); httpClient.getConnectionManager().shutdown(); return mapNames; } public void close(Options options) { try { SettingsService.SaveSettings(options); } catch (IOException ex) { System.out.println("Error saving settings!"); Logger.getLogger(MainController.class.getName()).log(Level.SEVERE, null, ex); } } }