public UIElement GetView(CommandResultDto commandResult, string result)
{
HttpResponseMessage response = null;
if (commandResult.Status != null)
{
response = HttpResponseDeserializer.DecodeResponse(result);
}
using (var scope = _context.CreateChildContainer())
{
var viewProviders = scope.Resolve <IEnumerable <ICommandResultViewProvider> >().OrderByDescending(x => x.Priority);
var serviceProvider = scope.Resolve <IServiceProvider>();
foreach (var viewProvider in viewProviders)
{
try
{
var view = viewProvider.GetView(response, commandResult, serviceProvider);
if (view != null)
{
return(view);
}
}
catch (Exception e)
{
Logger.Error(e, "Error occurred on GetView() on {viewProviderType}", viewProvider.GetType().FullName);
}
}
}
return(null);
}
private void OnTaskCommandResultCreated(CommandResultDto obj)
{
_dispatcher.Current.BeginInvoke(new Action(() =>
{
if (!_executions.TryGetValue(obj.TaskExecutionId, out var execution))
{
return;
}
if (execution.Results == null)
{
execution.Results = new ObservableCollection <ICommandStatusViewModel>();
}
else
{
var existingResult = execution.Results.FirstOrDefault(x => x.CommandResultId == obj.CommandResultId);
if (existingResult != null)
{
execution.Results.Remove(existingResult);
_results.Remove(existingResult.CommandResultId);
}
}
var result = new CommandResultViewModel(obj);
_results.Add(result.CommandResultId, result);
execution.Results.Add(result);
}));
}
Task ITaskResultStorage.CreateCommandResult(CommandResultDto commandResult)
{
lock (_commandResultsLock)
{
CommandResults.Add(commandResult);
}
return(Task.CompletedTask);
}
public void Execute()
{
while (_movements.Count > 0)
{
var movement = _movements.Dequeue();
ProcessMovement(movement);
}
Result = new CommandResultDto(CommandResult.Success, string.Empty);
}
public UIElement GetView(HttpResponseMessage responseMessage, CommandResultDto dto, IServiceProvider serviceProvider)
{
if (dto.Status != null)
{
return(null);
}
return(new ExceptionView {
DataContext = new ExceptionViewModel(dto)
});
}
private void AddCommandResult(CommandResultDto commandResultDto)
{
if (commandResultDto.Validate(new ValidationContext(commandResultDto)).Any())
{
return;
}
if (_results.TryAdd(commandResultDto.CommandResultId, commandResultDto))
{
TaskResultAdded?.Invoke(this, commandResultDto);
}
}
public async Task <IActionResult> CreateCommandResult([FromBody] CommandResultDto commandResultDto,
[FromServices] ICreateTaskCommandResultAction action, [FromServices] ActiveTasksManager activeTasksManager)
{
if (activeTasksManager.ActiveCommands.TryGetValue(new TargetId(User.GetClientId()), out var status))
{
status.Processes.TryRemove(commandResultDto.CommandResultId, out _);
}
await action.BizActionAsync(commandResultDto);
return(await BizActionStatus(action, async() =>
{
await _hubContext.Clients.All.SendAsync(HubEventNames.TaskCommandResultCreated, commandResultDto);
return Ok();
}));
}
public UIElement GetView(HttpResponseMessage responseMessage, CommandResultDto dto, IServiceProvider serviceProvider)
{
if (responseMessage.Content?.Headers.ContentType.MediaType != "maze/jsonlog")
{
return(null);
}
var log = responseMessage.Content.ReadAsStringAsync().Result;
var logEvents = new List <LogEvent>();
using (var stringReader = new StringReader(log))
{
var logReader = new LogEventReader(stringReader);
while (logReader.TryRead(out var logEvent))
{
logEvents.Add(logEvent);
}
}
return(new LogView(logEvents));
}
public CommandResultViewModel(CommandResultDto commandResult)
{
CommandResult = commandResult;
CommandResultId = commandResult.CommandResultId;
TaskExecutionId = commandResult.TaskExecutionId;
CommandName = commandResult.CommandName;
Result = commandResult.Result;
FinishedAt = commandResult.FinishedAt;
StatusCode = commandResult.Status;
if (StatusCode == null)
{
Status = CommandStatus.Failure;
}
else if (StatusCode >= 200 && StatusCode <= 299)
{
Status = CommandStatus.Succeeded;
}
else
{
Status = CommandStatus.Error;
}
}
private void ProcessMovement(char movement)
{
switch (movement)
{
case char c when c == 'R':
_rover.TurnRight();
break;
case char c when c == 'R':
_rover.TurnLeft();
break;
case char c when c == 'M':
var res = _rover.TryMove();
if (res != RoverMovementResult.Success)
{
Result = new CommandResultDto(CommandResult.Fail, $"Movement failed. Reason: {res:G}");
}
break;
default:
throw new ArgumentException($"Incorrect command literal {movement} at position {_movements.Count + 1}");
}
}
public async Task <CommandResult> BizActionAsync(CommandResultDto inputData)
{
if (ValidateModelFailed(inputData))
{
return(default);
public ExceptionViewModel(CommandResultDto commandResult)
{
ExceptionMessage = commandResult.Result;
}
private async Task ExecuteCommand(TargetId id, IServiceProvider services, CommandInfo commandInfo, TasksMachineStatus status, Guid executionId, CancellationToken cancellationToken)
{
var executorType = _executorTypes[commandInfo];
if (executorType == null)
{
return;
}
var service = services.GetService(executorType);
if (service == null)
{
return;
}
var commandName = commandInfo.GetType().Name.TrimEnd("CommandInfo", StringComparison.Ordinal);
var commandResult = new CommandResultDto
{
CommandResultId = Guid.NewGuid(),
TaskExecutionId = executionId,
CommandName = commandName
};
var commandProcessDto = new CommandProcessDto
{
CommandResultId = commandResult.CommandResultId, TaskExecutionId = executionId, CommandName = commandName
};
Task UpdateStatus(CommandProcessDto arg)
{
commandProcessDto.StatusMessage = arg.StatusMessage;
commandProcessDto.Progress = arg.Progress;
return(_hubContext.Clients.All.SendAsync(HubEventNames.TaskCommandProcess, commandProcessDto, cancellationToken));
}
var executionMethod = _executionMethods[executorType];
status.Processes.TryAdd(commandProcessDto.CommandResultId, commandProcessDto);
try
{
using (var context = new DefaultTaskExecutionContext(_taskSession, _mazeTask, services, UpdateStatus))
{
context.ReportProgress(null); //important to notify about the start of the operation
var task = (Task <HttpResponseMessage>)executionMethod.Invoke(service,
new object[] { commandInfo, id, context, cancellationToken });
var response = await task;
using (var memoryStream = new MemoryStream())
{
await HttpResponseSerializer.Format(response, memoryStream);
commandResult.Result = Convert.ToBase64String(memoryStream.GetBuffer(), 0, (int)memoryStream.Length);
commandResult.Status = (int)response.StatusCode;
}
}
}
catch (Exception e)
{
_logger.LogWarning(e, "An error occurred when executing {method}", executorType.FullName);
commandResult.Result = e.ToString();
}
finally
{
status.Processes.TryRemove(commandProcessDto.CommandResultId, out _);
}
commandResult.FinishedAt = DateTimeOffset.UtcNow;
try
{
await _taskResultStorage.CreateCommandResult(commandResult);
}
catch (Exception e)
{
_logger.LogError(e, "Executing CreateCommandResult failed.");
}
await _hubContext.Clients.All.SendAsync(HubEventNames.TaskCommandResultCreated, commandResult);
}
private void BuilderOnTaskResultAdded(object sender, CommandResultDto e)
{
_hubContext.Clients.All.SendAsync(HubEventNames.TaskCommandResultCreated, e);
}
public Task CreateCommandResult(CommandResultDto commandResult)
{
var action = _serviceProvider.GetRequiredService <ICreateTaskCommandResultAction>();
return(action.BizActionAsync(commandResult));
}
