Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package com.imos.sample; 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.store.FileDataStoreFactory; import com.google.api.services.calendar.CalendarScopes; import com.google.api.services.calendar.model.Event; import com.google.api.services.calendar.model.EventAttendee; import com.google.api.services.calendar.model.EventDateTime; import com.google.api.services.calendar.model.EventReminder; import com.google.api.services.calendar.model.Events; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.security.GeneralSecurityException; import java.util.Arrays; import java.util.List; /** * * @author Pintu */ public class CalendarQuickstart { /** * Application name. */ private static final String APPLICATION_NAME = "Google Calendar API Java Quickstart"; /** * Directory to store user credentials for this application. */ private static final java.io.File DATA_STORE_DIR = new java.io.File(System.getProperty("user.home"), ".credentials/calendar-java-quickstart"); /** * Global instance of the {@link FileDataStoreFactory}. */ private static FileDataStoreFactory DATA_STORE_FACTORY; /** * Global instance of the JSON factory. */ private static final JsonFactory JSON_FACTORY = JacksonFactory.getDefaultInstance(); /** * Global instance of the HTTP transport. */ private static HttpTransport HTTP_TRANSPORT; /** * Global instance of the scopes required by this quickstart. * * If modifying these scopes, delete your previously saved credentials at * ~/.credentials/calendar-java-quickstart */ private static final List<String> SCOPES = Arrays.asList(CalendarScopes.CALENDAR_READONLY); static { try { HTTP_TRANSPORT = GoogleNetHttpTransport.newTrustedTransport(); DATA_STORE_FACTORY = new FileDataStoreFactory(DATA_STORE_DIR); } catch (IOException | GeneralSecurityException t) { t.printStackTrace(); System.exit(1); } } /** * Creates an authorized Credential object. * * @return an authorized Credential object. * @throws IOException */ public static Credential authorize() throws IOException { // Load client secrets. InputStream in = CalendarQuickstart.class.getResourceAsStream("/client_secret.json"); GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(JSON_FACTORY, new InputStreamReader(in)); // Build flow and trigger user authorization request. GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(HTTP_TRANSPORT, JSON_FACTORY, clientSecrets, SCOPES).setDataStoreFactory(DATA_STORE_FACTORY).setAccessType("offline").build(); Credential credential = new AuthorizationCodeInstalledApp(flow, new LocalServerReceiver()) .authorize("user"); System.out.println("Credentials saved to " + DATA_STORE_DIR.getAbsolutePath()); return credential; } /** * Build and return an authorized Calendar client service. * * @return an authorized Calendar client service * @throws IOException */ public static com.google.api.services.calendar.Calendar getCalendarService() throws IOException { Credential credential = authorize(); return new com.google.api.services.calendar.Calendar.Builder(HTTP_TRANSPORT, JSON_FACTORY, credential) .setApplicationName(APPLICATION_NAME).build(); } public static void main(String[] args) throws IOException { // Build a new authorized API client service. // Note: Do not confuse this class with the // com.google.api.services.calendar.model.Calendar class. com.google.api.services.calendar.Calendar service = getCalendarService(); // List the next 10 events from the primary calendar. DateTime now = new DateTime(System.currentTimeMillis()); Events events = service.events().list("primary").setMaxResults(10).setTimeMin(now).setOrderBy("startTime") .setSingleEvents(true).execute(); List<Event> items = events.getItems(); if (items.isEmpty()) { System.out.println("No upcoming events found."); } else { System.out.println("Upcoming events"); items.forEach((event) -> { DateTime start = event.getStart().getDateTime(); if (start == null) { start = event.getStart().getDate(); } System.out.printf("%s (%s)\n", event.getSummary(), start); }); } Event event = new Event().setSummary("Google I/O 2015") .setLocation("800 Howard St., San Francisco, CA 94103") .setDescription("A chance to hear more about Google's developer products."); DateTime startDateTime = new DateTime("2015-05-28T09:00:00-07:00"); EventDateTime start = new EventDateTime().setDateTime(startDateTime).setTimeZone("America/Los_Angeles"); event.setStart(start); DateTime endDateTime = new DateTime("2015-05-28T17:00:00-07:00"); EventDateTime end = new EventDateTime().setDateTime(endDateTime).setTimeZone("America/Los_Angeles"); event.setEnd(end); String[] recurrence = new String[] { "RRULE:FREQ=DAILY;COUNT=2" }; event.setRecurrence(Arrays.asList(recurrence)); EventAttendee[] attendees = new EventAttendee[] { new EventAttendee().setEmail("lpage@example.com"), new EventAttendee().setEmail("sbrin@example.com"), }; event.setAttendees(Arrays.asList(attendees)); EventReminder[] reminderOverrides = new EventReminder[] { new EventReminder().setMethod("email").setMinutes(24 * 60), new EventReminder().setMethod("popup").setMinutes(10), }; Event.Reminders reminders = new Event.Reminders().setUseDefault(false) .setOverrides(Arrays.asList(reminderOverrides)); event.setReminders(reminders); String calendarId = "primary"; service = getCalendarService(); // event = service.events().insert(calendarId, event).execute(); // System.out.printf("Event created: %s\n", event.getHtmlLink()); } }