/**
* Delete the users that are present in the local content providers, but are not returned anymore
* by Dailymotion. It means that these users are outdated and should not be proposed to the user.
*
* @return A boolean indicating if the deletion successfully occured.
*/
private boolean deleteOutdatedUsers() {
if (mLocalUsers.size() > 0) {
int count = mLocalUsers.size();
KidsLogger.i(LOG_TAG, String.format("Removing %d users from db", count));
ArrayList<ContentProviderOperation> ops = new ArrayList<ContentProviderOperation>(count);
for (String key : mLocalUsers.keySet()) {
ContentProviderOperation operation =
ContentProviderOperation.newDelete(UsersProvider.CONTENT_URI)
.withSelection(UserContract.DAILYMOTION_ID + "=?", new String[] {key})
.build();
ops.add(operation);
}
try {
return mContentResolver.applyBatch(UsersProvider.AUTHORITY, ops).length == count;
} catch (RemoteException e) {
// Should not happen, the Content Provider is local.
KidsLogger.w(LOG_TAG, "An exception occured while communicating with provider.");
return false;
} catch (OperationApplicationException e) {
KidsLogger.w(LOG_TAG, "An operation has failed when deleting local users.");
return false;
}
}
return true;
}
@Override
public void onSuccess(JSONObject response) {
JSONArray array = response.optJSONArray("list");
List<User> usersToInsert = parseUsers(array);
for (int i = 0; i < usersToInsert.size(); i++) {
KidsLogger.d(
LOG_TAG, String.format("Getting user : %s ", usersToInsert.get(i).getScreenName()));
if (usersToInsert.get(i).getScreenName().equals("null")) {
KidsLogger.d(
LOG_TAG, String.format("Removing user : %s ", usersToInsert.get(i).getScreenName()));
usersToInsert.remove(i);
}
}
if (!insertNewUsers(usersToInsert)) {
mCallback.onFailure(new IOException("Impossible to insert users in db."));
return;
}
if (response.optBoolean("has_more") && response.optInt("page") != 0) {
fetchPage(response.optInt("page") + 1);
} else {
deleteOutdatedUsers();
mCallback.onSuccess(mFetchedUsers);
}
}
/**
* Fetch the provided page of users for the Dailymotion end point generated based on the object we
* need to fetch the users for.
*
* @param page Page to fetch as an int.
*/
private void fetchPage(int page) {
KidsLogger.d(LOG_TAG, String.format("Fetching users from %s, page : %d", mEndPoint, page));
Bundle bundle = new Bundle();
bundle.putString("fields", FIELDS);
bundle.putString("tileset", "kidsplus");
bundle.putString("localization", "fr");
bundle.putString("page", String.valueOf(page));
bundle.putString("limit", String.valueOf(Constants.PAGE_LIMIT));
DailymotionRequestor requestor = new DailymotionRequestor(mDailymotion);
requestor.anonymousRequest(mEndPoint, bundle, new UserFetchingRequestListener());
}
/**
* Insert the provided playlists in the local database. A boolean is returned to indicate if the
* insertion went correctly.
*/
private boolean insertNewUsers(List<User> users) {
if (users.size() > 0) {
KidsLogger.d(LOG_TAG, String.format("Inserting %d users", users.size()));
ContentValues[] values = new ContentValues[users.size()];
for (int i = 0; i < users.size(); ++i) {
values[i] = users.get(i).toContentValues();
}
return (mContentResolver.bulkInsert(UsersProvider.CONTENT_URI, values) == users.size());
}
return true;
}