public override void OnDestroy()
{
this.Info($"In OnDestroy()...");
_nodeController?.RaiseNodeShutdownRequested();
_nodeController = null;
_helper.RemoveNotification();
if (_tryRestart)
{
var broadcastIntent = new Intent(this, typeof(RestartOnDestroyReceiver));
SendBroadcast(broadcastIntent);
}
_handler.RemoveCallbacks(_runnable);
_handler.Dispose();
_handler = null;
base.OnDestroy();
}
public override StartCommandResult OnStartCommand(Intent intent, [GeneratedEnum] StartCommandFlags flags, int startId)
{
this.Info($"In OnStartCommand(), Action: {intent.Action}...");
switch (intent.Action)
{
case ActionStartNodeService:
var notification = _helper.CreateNotification("Starting Service and node...");
StartForeground(NodeServiceNotificationId, notification);
this.Info($"Called StartForeground...");
if (_nodeController == null)
{
this.Info($"NodeControllerFactory was null, creating it...");
_nodeController = new NodeController();
_nodeController.NodeCrashed += OnNodeCrashed;
_nodeController.StartFullNode(intent.GetStringArrayListExtra("startParameters").ToArray());
this.Info($"NodeControllerFactory.StartFullNode() has returned...");
_helper.UpdateNotification("Started service and node.", new[] { _helper.CreateAction(ActionStopNodeService, "Stop Node") });
}
else
{
this.Info($"NodeControllerFactory was not null (already running)...");
_helper.UpdateNotification("Node was already running.");
}
break;
case ActionStopNodeService:
_handler?.RemoveCallbacks(_runnable);
if (_nodeController != null)
{
this.Info($"Calling NodeControllerFactory.RaiseNodeShutdownRequested()...");
_nodeController.RaiseNodeShutdownRequested();
_helper.UpdateNotification("Stopping Node.");
}
else
{
this.Info($"NodeControllerFactory was null (already stopped)...");
_helper.UpdateNotification("Node was already stopped.");
}
this.Info(_tag, $"Calling StopForeground(true), StopSelf()...");
_tryRestart = false;
StopForeground(true);
StopSelf();
break;
}
return(StartCommandResult.Sticky);
}
void Update()
{
// TODO: move the linebuffer into the service,
// so that we can use the default activity mode. A new instance can then also Bind to the current generation of the service. Then, the reference to the bound service will not become invalid.
try
{
this.Info("Fetching log...");
NodeController controller = _nodeServiceConnection.NodeControllerFactory.Value;
if (controller != null)
{
var log = controller.GetLog();
if (!string.IsNullOrEmpty(log))
{
var oldText = _logView.Text;
var oldLines = CountLines(oldText);
if (oldLines > 200)
{
var shorter = DeleteLines(oldText, 100);
var newText = shorter + log;
_logView.Text = newText;
this.Info("Truncated log...");
}
else
{
_logView.Text = oldText + log;
}
_scrollView.FullScroll(FocusSearchDirection.Down);
}
}
}
catch (Exception e)
{
this.Info($"Error in Update(): {e.Message}");
}
finally
{
_nodeServiceConnection = null;
//GC.Collect(0);
}
}