Telemetry events are dropped when network is disconnected

[kmadsen]

EDIT: I removed the bug label. This is potentially a feature, considering it hasn't been implemented?

Configuration

• SDK Version All
• Android OS Version All
• Device model(s): All
• App: All

Steps to Reproduce

1. launch app with telemetry
2. put device in airplane mode
3. events are dropped

Expected
Don't drop network is disconnected

Logging
Looks like the queue is flushed here, which removes all the events

mapbox-events-android/libtelemetry/src/full/java/com/mapbox/android/telemetry/MapboxTelemetry.java

Lines 278 to 294 in 19ca456

	private synchronized void flushEnqueuedEvents() {
	final List<Event> currentEvents = queue.flush();
	if (currentEvents.isEmpty()) {
	return;
	}
	executeRunnable(new Runnable() {
	@Override
	public void run() {
	try {
	sendEvents(currentEvents, false);
	} catch (Throwable throwable) {
	// TODO: log silent crash
	Log.e(LOG_TAG, throwable.toString());
	}
	}
	});
	}

When the connection is unavailable, these events are dropped

mapbox-events-android/libtelemetry/src/full/java/com/mapbox/android/telemetry/MapboxTelemetry.java

Lines 310 to 314 in 19ca456

	private synchronized void sendEvents(List<Event> events, boolean serializeNulls) {
	if (isNetworkConnected() && checkRequiredParameters(sAccessToken.get(), userAgent)) {
	telemetryClient.sendEvents(events, httpCallback, serializeNulls);
	}
	}