Java tutorial
/* * Copyright (c) 2010 Google Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except * in compliance with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software distributed under the License * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express * or implied. See the License for the specific language governing permissions and limitations under * the License. */ package raspi_ui.backend.calendar; import com.google.api.services.calendar.model.CalendarListEntry; import raspi_ui.backend.calendar.json.CalenderInfo; import raspi_ui.backend.calendar.json.Item; import com.google.api.client.auth.oauth2.Credential; import com.google.api.client.extensions.java6.auth.oauth2.AuthorizationCodeInstalledApp; import com.google.api.client.extensions.jetty.auth.oauth2.LocalServerReceiver; import com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeFlow; import com.google.api.client.googleapis.auth.oauth2.GoogleClientSecrets; import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport; import com.google.api.client.http.HttpTransport; import com.google.api.client.json.JsonFactory; import com.google.api.client.json.jackson2.JacksonFactory; import com.google.api.client.util.DateTime; import com.google.api.client.util.Lists; import com.google.api.client.util.store.FileDataStoreFactory; import com.google.api.services.calendar.CalendarScopes; import com.google.api.services.calendar.model.CalendarList; import com.google.api.services.calendar.model.Events; import com.google.gson.Gson; import java.io.IOException; import java.io.InputStreamReader; import java.util.*; /** * @author Yaniv Inbar */ public class CalendarData { private static final String APPLICATION_NAME = "Test for Tests"; private static final java.io.File DATA_STORE_DIR = new java.io.File(System.getProperty("user.home"), ".store/calendar_sample"); private static final JsonFactory JSON_FACTORY = JacksonFactory.getDefaultInstance(); private static FileDataStoreFactory dataStoreFactory; private static HttpTransport httpTransport; private static com.google.api.services.calendar.Calendar client; static final java.util.List<com.google.api.services.calendar.model.Calendar> addedCalendarsUsingBatch = Lists .newArrayList(); private static Credential authorize() throws Exception { // load client secrets GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(JSON_FACTORY, new InputStreamReader(CalendarData.class.getResourceAsStream("/client_secrets.json"))); if (clientSecrets.getDetails().getClientId().startsWith("Enter") || clientSecrets.getDetails().getClientSecret().startsWith("Enter ")) { System.out.println("Enter Client ID and Secret from https://code.google.com/apis/console/?api=calendar " + "into calendar-cmdline-sample/src/main/resources/client_secrets.json"); System.exit(1); } // set up authorization code flow GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(httpTransport, JSON_FACTORY, clientSecrets, Collections.singleton(CalendarScopes.CALENDAR)).setDataStoreFactory(dataStoreFactory) .build(); // authorize return new AuthorizationCodeInstalledApp(flow, new LocalServerReceiver()).authorize("user"); } public static List<CalendarEvent> getEventsInTime(String begin, String end) throws IOException { main(null); List<CalendarEvent> events = new ArrayList<CalendarEvent>(); CalendarList calendars = client.calendarList().list().execute(); for (CalendarListEntry calendar : calendars.getItems()) { System.out.println("found calendar: " + calendar.getSummary() + " id: " + calendar.getId()); if (calendar.getSummary().contains("inovex") || calendar.getSummary().contains("Feiertage")) { System.out.println("processing calendar: " + calendar.getSummary()); String JSON_Events = client.events().list(calendar.getId()).setTimeMin(new DateTime(begin)) .setTimeMax(new DateTime(end)).execute().toPrettyString(); parseEvents(JSON_Events, events); } } System.out.println("found events: " + events.size()); System.out.println("done getting calendar events"); return events; } private static void parseEvents(String jsonString, List<CalendarEvent> addTo) { Gson gson = new Gson(); System.out.println("parsing json..."); CalenderInfo data = gson.fromJson(jsonString, CalenderInfo.class); System.out.println(data.getSummary() + " | " + data.getItems().size()); for (Item item : data.getItems()) { try { CalendarEvent event = new CalendarEvent(item.getSummary(), item.getDescription(), item.getStart().getDateTime(), item.getEnd().getDateTime(), data, item); addTo.add(event); System.out.println(event); System.out.println(); } catch (NullPointerException ex) { System.err.println("unable to get data for item: " + item.toString()); } } } public static void main(String[] args) { try { // initialize the transport httpTransport = GoogleNetHttpTransport.newTrustedTransport(); // initialize the data store factory dataStoreFactory = new FileDataStoreFactory(DATA_STORE_DIR); System.out.println("DatastoreDir: -------------------------------------------"); System.out.println(DATA_STORE_DIR); // authorization Credential credential = authorize(); // set up global CalendarData instance client = new com.google.api.services.calendar.Calendar.Builder(httpTransport, JSON_FACTORY, credential) .setApplicationName(APPLICATION_NAME).build(); // run commands //showCalendars(); } catch (IOException e) { System.err.println(e.getMessage()); } catch (Throwable t) { t.printStackTrace(); } //System.exit(1); } }