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By: a guest on May 4th, 2012  |  syntax: None  |  size: 3.70 KB  |  hits: 10  |  expires: Never
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  1. Exception when retrieving contacts from Google Contacts API
  2. public class Syncer {
  3.  
  4. private String consumerKey = "XXXXXXXXX";
  5. private String consumerSecret = "XXXXXXXXX";
  6. private String masterUser = "XXXXXXXXX";
  7. private GoogleOAuthParameters oauthParameters;
  8. private ContactsService contactService;
  9. private AppsPropertyService appsService;
  10.  
  11.  
  12. public Syncer() throws IOException, ServiceException, OAuthException {
  13.     oauthParameters = new GoogleOAuthParameters();
  14.     oauthParameters.setOAuthConsumerKey(consumerKey);
  15.     oauthParameters.setOAuthConsumerSecret(consumerSecret);
  16.     oauthParameters.setOAuthType(OAuthType.TWO_LEGGED_OAUTH);
  17.     contactService = new ContactsService(consumerKey);
  18.     contactService.setOAuthCredentials(oauthParameters, new OAuthHmacSha1Signer());
  19.     appsService = new AppsPropertyService(consumerKey);
  20.     appsService.setUserCredentials("XXXXXXX", "XXXXXXXXX");
  21.     sync();
  22. }
  23.  
  24. public List<ContactGroupEntry> retrieveGroups(String user) throws IOException, ServiceException {
  25.     URL feedUrl = new URL("https://www.google.com/m8/feeds/groups/" + user + "/full?xoauth_requestor_id=" + masterUser);
  26.     ContactGroupFeed resultFeed = contactService.getFeed(feedUrl, ContactGroupFeed.class);
  27.     return resultFeed.getEntries();
  28. }
  29.  
  30. public List<ContactEntry> retrieveGroupContacts(ContactGroupEntry group) throws IOException, ServiceException {
  31.     URL feedUrl = new URL("https://www.google.com/m8/feeds/contacts/default/full?group=" + group.getId() + "&xoauth_requestor_id=" + masterUser);
  32.     ContactFeed resultFeed = contactService.getFeed(feedUrl, ContactFeed.class);
  33.     return resultFeed.getEntries();
  34. }
  35.  
  36. public List<GenericEntry> getAllUsers() throws AppsForYourDomainException, MalformedURLException, IOException, ServiceException {
  37.     GenericFeed feed = appsService.getFeed(new URL("https://apps-apis.google.com/a/feeds/user/2.0/" + consumerKey), GenericFeed.class);
  38.     List<GenericEntry> users = feed.getEntries();
  39.     Link next;
  40.     while((next = feed.getNextLink()) != null) {
  41.         feed = appsService.getFeed(new URL(next.getHref()), GenericFeed.class);
  42.         users.addAll(feed.getEntries());
  43.     }
  44.     return users;
  45. }
  46.  
  47.  
  48. public void sync() throws IOException, ServiceException {
  49.     Map<ContactGroupEntry, List<ContactEntry>> masterContactsList = new HashMap<ContactGroupEntry, List<ContactEntry>>();
  50.     List<ContactGroupEntry> masterGroups = retrieveGroups(masterUser);
  51.     ContactGroupFeed groupBatchCreate = new ContactGroupFeed();
  52.  
  53.     for(ContactGroupEntry group : masterGroups) {
  54.         if(!group.hasSystemGroup() && group.getTitle().getPlainText().startsWith("SOG:")) {
  55.             List<ContactEntry> contacts = retrieveGroupContacts(group);
  56.             masterContactsList.put(group, contacts);
  57.  
  58.             ContactGroupEntry createContactGroup = new ContactGroupEntry();
  59.             createContactGroup.setTitle(new PlainTextConstruct(group.getPlainTextContent()));
  60.             BatchUtils.setBatchId(createContactGroup, "create");
  61.             BatchUtils.setBatchOperationType(createContactGroup, BatchOperationType.INSERT);
  62.             groupBatchCreate.getEntries().add(createContactGroup);
  63.         }
  64.     }
  65.  
  66.     List<GenericEntry> users = getAllUsers();
  67.     for(GenericEntry user : users) {
  68.         List<ContactGroupEntry> userGroups = retrieveGroups(user.getProperty("userEmail"));
  69.         for(ContactGroupEntry group : userGroups) {
  70.             if(group.getTitle().getPlainText().startsWith("SOG:")) {
  71.                 group.delete();
  72.             }
  73.         }
  74.  
  75.         contactService.batch(new URL("https://www.google.com/m8/feeds/groups/" + user.getProperty("userEmail") + "/full/batch"), groupBatchCreate);
  76.     }
  77. }
  78.  
  79.  
  80. public static void main(String[] args) throws IOException, ServiceException, OAuthException {
  81.     new Syncer();
  82. }
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