private boolean updateNotes() {
ArrayList<AppNote> changed = mDbHelper.fetchNotes(NotesDbAdapter.CHANGED_NOTES_SELECTION);
boolean allUpdated = true;
for (AppNote appNote : changed) {
try {
link.update(appNote.getNote());
mDbHelper.updateNote(appNote.getId(), appNote.getNote(), true);
} catch (LinkItemNotFound e) {
e.printStackTrace();
try {
link.add(appNote.getNote());
mDbHelper.updateNote(appNote.getId(), appNote.getNote(), true);
} catch (LibOperaLinkException e1) {
e1.printStackTrace();
allUpdated = false;
}
} catch (LinkAccessDeniedException e) {
e.printStackTrace();
isConnected = false;
allUpdated = false;
} catch (LibOperaLinkException e) {
e.printStackTrace();
allUpdated = false;
}
}
return allUpdated;
}
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.notes_list);
// Initialise database connection and read notes
mDbHelper = new NotesDbAdapter(this);
mDbHelper.open();
fillData();
registerForContextMenu(getListView());
// Read preferences
pref = getPreferences(MODE_PRIVATE);
requestToken = pref.getString(REQUEST_TOKEN_PREF_KEY, null);
accessToken = pref.getString(ACCESS_TOKEN_PREF_KEY, null);
tokenSecret = pref.getString(TOKEN_SECRET_PREF_KEY, null);
automaticSync = pref.getBoolean(getString(R.string.sync_option), true);
// Create object for connection with Opera Link
if (accessToken != null && tokenSecret != null) {
isConnected = true;
link =
LinkClient.createFromAccessToken(consumerKey, consumerSecret, accessToken, tokenSecret);
if (automaticSync) {
syncItems();
}
} else if (requestToken != null) {
link =
LinkClient.createFromRequestToken(consumerKey, consumerSecret, requestToken, tokenSecret);
} else {
link = new LinkClient(consumerKey, consumerSecret);
}
}
/**
* Obtains OAuth access tokens which can be used during entire communication process with Opera
* Link server and invokes first synchronisation
*/
public void grantAccess() {
Uri uri = this.getIntent().getData();
if (uri == null) {
return;
}
String verifier = uri.getQueryParameter(LinkClient.OAUTH_VERIFIER);
if (verifier == null) {
return;
}
try {
link.grantAccess(verifier);
Log.i(SYNC_TAG, "Access granted");
accessToken = link.getAccessToken();
tokenSecret = link.getTokenSecret();
Editor prefEditor = pref.edit();
prefEditor.putString(ACCESS_TOKEN_PREF_KEY, accessToken);
prefEditor.putString(TOKEN_SECRET_PREF_KEY, tokenSecret);
prefEditor.commit();
isConnected = true;
syncItems();
} catch (LinkAccessDeniedException e) {
showToast("Access forbidden for access token " + accessToken);
e.printStackTrace();
} catch (LibOperaLinkException e) {
e.printStackTrace();
}
}
/**
* Starts activity with url where user can grant permission to the user's Opera Link data
*
* @return true if redirection succeeded
*/
private boolean redirectToBrowser() {
try {
String authorizeUrl = link.getAuthorizationURL(CALLBACK_URL);
Editor prefEditor = pref.edit();
prefEditor.putString(REQUEST_TOKEN_PREF_KEY, link.getRequestToken());
prefEditor.putString(TOKEN_SECRET_PREF_KEY, link.getTokenSecret());
prefEditor.commit();
Intent i = new Intent(Intent.ACTION_VIEW);
i.setData(Uri.parse(authorizeUrl));
startActivityForResult(i, REDIRECTION_ACTIVITY);
} catch (LibOperaLinkException e) {
e.printStackTrace();
showToast("Could not connect to the server");
return false;
}
return true;
}
/**
* Change notes at the server
*
* @return true if succeeded
*/
private boolean uploadNewNotes() {
ArrayList<AppNote> newNotes = mDbHelper.fetchNotes(NotesDbAdapter.NEW_NOTES_SELECTION);
boolean allUpdated = true;
try {
for (AppNote appNote : newNotes) {
link.add(appNote.getNote());
mDbHelper.updateNote(appNote.getId(), appNote.getNote(), true);
}
} catch (LinkAccessDeniedException e) {
e.printStackTrace();
allUpdated = false;
isConnected = false;
} catch (LibOperaLinkException e) {
e.printStackTrace();
allUpdated = false;
}
return allUpdated;
}
/**
* Get new notes and updates from Opera Link server and insert them into database
*
* @return true if operation succeeded
*/
private boolean getServerNotes() {
ArrayList<NoteFolderEntry> notes = null;
try {
notes = link.getRootNotes(true);
} catch (LinkAccessDeniedException e) {
e.printStackTrace();
isConnected = false;
return false;
} catch (LibOperaLinkException e) {
e.printStackTrace();
return false;
}
int newNotes = 0;
ArrayList<Note> allNotes = new ArrayList<Note>();
flattenNoteFolders(notes, allNotes);
for (Note note : allNotes) {
// try to get note from the database
AppNote appNote = mDbHelper.fetchOperaNote(note.getId());
if (appNote == null) { // no such note in database, add a new one
++newNotes;
mDbHelper.importAndAddNote(note);
} else if (!appNote.getNote().content.equals(note.content)) {
// update already added note
if (appNote.isSynced()) {
mDbHelper.updateNote(appNote.getId(), note, true);
} else { // note content conflicted, add new note leaving the
// old one
mDbHelper.createNote(note);
// set that the old one is synchronised
mDbHelper.updateNote(appNote.getId(), appNote.getNote(), true);
}
}
}
showToast(String.valueOf(newNotes) + " " + getString(R.string.got_notes));
return true;
}
/**
* Delete notes which were marked as those to be deleted, delete them also from the Opera Link
* server
*
* @return true if deleting notes at the server succeeded
*/
private boolean deleteNotes() {
ArrayList<AppNote> toDelete = mDbHelper.fetchNotes(NotesDbAdapter.TO_DELETE_SELECTION);
boolean allDeleted = true;
for (AppNote appNote : toDelete) {
try {
if (appNote.getOpera_id() != null) {
link.delete(appNote.getNote());
}
mDbHelper.deleteNote(appNote.getId());
} catch (LinkItemNotFound e) {
e.printStackTrace();
mDbHelper.deleteNote(appNote.getId());
} catch (LinkAccessDeniedException e) {
e.printStackTrace();
isConnected = false;
allDeleted = false;
} catch (LibOperaLinkException e) {
e.printStackTrace();
allDeleted = false;
}
}
return allDeleted;
}