public void handleHTTPError(SyncStorageResponse response, String reason) {
// TODO: handling of 50x (backoff), 401 (node reassignment or auth error).
// Fall back to aborting.
Logger.warn(LOG_TAG, "Aborting sync due to HTTP " + response.getStatusCode());
this.interpretHTTPFailure(response.httpResponse());
this.abort(new HTTPFailureException(response), reason);
}
private void handleDownloadSuccess(SyncStorageResponse response) {
if (response.wasSuccessful()) {
try {
CryptoRecord record = CryptoRecord.fromJSONRecord(response.jsonObjectBody());
this.setFromRecord(record);
this.callback.handleSuccess(this, response);
} catch (Exception e) {
this.callback.handleError(e);
}
return;
}
this.callback.handleFailure(response);
}
public void handleRequestFailure(SyncStorageResponse response) {
if (response.getStatusCode() == 404) {
this.callback.handleMissing(this, response);
return;
}
this.callback.handleFailure(response);
}
/**
* We failed to sync this engine! Do not persist timestamps (which means that the next sync will
* include this sync's data), but do advance the session (if we didn't get a Retry-After header).
*
* @param synchronizer the <code>Synchronizer</code> that failed.
*/
@Override
public void onSynchronizeFailed(
Synchronizer synchronizer, Exception lastException, String reason) {
Logger.warn(LOG_TAG, "Synchronize failed: " + reason, lastException);
// This failure could be due to a 503 or a 401 and it could have headers.
// Interrogate the headers but only abort the global session if Retry-After header is set.
if (lastException instanceof HTTPFailureException) {
SyncStorageResponse response = ((HTTPFailureException) lastException).response;
if (response.retryAfterInSeconds() > 0) {
session.handleHTTPError(response, reason); // Calls session.abort().
return;
} else {
session.interpretHTTPFailure(response.httpResponse()); // Does not call session.abort().
}
}
Logger.info(LOG_TAG, "Advancing session even though stage failed. Timestamps not persisted.");
session.advance();
}
protected void interpretHTTPBadRequestBody(final SyncStorageResponse storageResponse) {
try {
final String body = storageResponse.body();
if (body == null) {
return;
}
if (SyncStorageResponse.RESPONSE_CLIENT_UPGRADE_REQUIRED.equals(body)) {
callback.informUpgradeRequiredResponse(this);
return;
}
} catch (Exception e) {
Logger.warn(LOG_TAG, "Exception parsing HTTP 400 body.", e);
}
}