/// <summary>
/// Assigns every property from another instance
/// </summary>
/// <param name="from">Object to assign from</param>
/// <exception cref="ArgumentNullException">other is null</exception>
/// <exception cref="ArgumentException">Types do not match</exception>
public void Assign(object from)
{
if (from == null)
{
throw new ArgumentNullException();
}
if (!(from is MachineModel other))
{
throw new ArgumentException("Invalid type");
}
Channels.Assign(other.Channels);
Electronics.Assign(other.Electronics);
ListHelpers.AssignList(Fans, other.Fans);
Heat.Assign(other.Heat);
Job.Assign(other.Job);
MessageBox.Assign(other.MessageBox);
ListHelpers.AssignList(Messages, other.Messages);
Move.Assign(other.Move);
Network.Assign(other.Network);
Scanner.Assign(other.Scanner);
Sensors.Assign(other.Sensors);
ListHelpers.AssignList(Spindles, other.Spindles);
State.Assign(other.State);
ListHelpers.AssignList(Storages, other.Storages);
ListHelpers.AssignList(Tools, other.Tools);
ListHelpers.AssignList(UserVariables, other.UserVariables);
}
// TODO add Sensors here holding info about thermistors
/// <summary>
/// Assigns every property of another instance of this one
/// </summary>
/// <param name="from">Object to assign from</param>
/// <exception cref="ArgumentNullException">other is null</exception>
/// <exception cref="ArgumentException">Types do not match</exception>
public void Assign(object from)
{
if (from == null)
{
throw new ArgumentNullException();
}
if (!(from is Sensors other))
{
throw new ArgumentException("Invalid type");
}
ListHelpers.AssignList(Endstops, other.Endstops);
ListHelpers.AssignList(Probes, other.Probes);
}
/// <summary>
/// Task that keeps pushing model updates to the client
/// </summary>
/// <returns>Task that represents the lifecycle of a connection</returns>
public override async Task Process()
{
try
{
// First send over the full machine model
JObject currentObject, lastObject, patch = null;
lock (_model)
{
currentObject = lastObject = JObject.FromObject(_model, JsonHelper.DefaultSerializer);
_model.Messages.Clear();
}
await Connection.Send(currentObject.ToString(Formatting.None) + "\n");
do
{
// Wait for an acknowledgement from the client if anything was sent before
if (patch == null || patch.HasValues)
{
BaseCommand command = await Connection.ReceiveCommand();
if (command == null)
{
return;
}
if (!SupportedCommands.Contains(command.GetType()))
{
throw new ArgumentException($"Invalid command {command.Command} (wrong mode?)");
}
}
// Wait for another update
if (_mode == SubscriptionMode.Patch)
{
lastObject = currentObject;
}
await _updateAvailableEvent.WaitAsync(Program.CancelSource.Token);
// Get the updated object model
lock (_model)
{
using (Model.Provider.AccessReadOnly())
{
// NB: This could be further improved so that all the JSON tokens are written via the INotifyPropertyChanged events
_model.Assign(Model.Provider.Get);
}
lock (_messages)
{
ListHelpers.AssignList(_model.Messages, _messages);
_messages.Clear();
}
currentObject = JObject.FromObject(_model, JsonHelper.DefaultSerializer);
}
// Provide the model update
if (_mode == SubscriptionMode.Full)
{
// Send the entire object model in Full mode
await Connection.Send(currentObject.ToString(Formatting.None) + "\n");
}
else
{
// Only create a diff in Patch mode
patch = JsonHelper.DiffObject(lastObject, currentObject);
// Compact the job layers. There is no point in sending them all every time an update occurs
if (patch.ContainsKey("job") && patch.Value <JObject>("job").ContainsKey("layers"))
{
JArray layersArray = patch["job"].Value <JArray>("layers");
while (!layersArray[0].HasValues)
{
layersArray.RemoveAt(0);
}
}
// Send the patch unless it is empty
if (patch.HasValues)
{
await Connection.Send(patch.ToString(Formatting.None) + "\n");
}
}
} while (!Program.CancelSource.IsCancellationRequested);
}
finally
{
lock (_subscriptions)
{
_subscriptions.Remove(this);
}
}
}