/// <summary>
/// Submits the specified command for execution.
/// </summary>
/// <typeparam name="TResponseData">The type of the response data.</typeparam>
/// <param name="command">The command.</param>
/// <returns>The command response.</returns>
public CommandHandlerResponse <TResponseData> Submit <TResponseData>(ICommand <TResponseData> command)
{
var response = new CommandHandlerResponse <TResponseData>();
Guard.Will.ProtectAgainstNullArgument(() => command);
this.OnCommandExecuting(new CommandExecutionStatusChangedEventArgs(command, CommandExecutionStatus.Executing));
var commandType = command.GetType();
try
{
if (command is IValidatableObject)
{
var validationResults = Validate((IValidatableObject)command);
if (validationResults.Any())
{
response.ValidationResults = validationResults;
response.CommandExecutionResult = CommandExecutionResult.Failed;
this.OnCommandExecuting(new CommandExecutionStatusChangedEventArgs(command, CommandExecutionStatus.Failing));
}
else
{
ExecuteCommand(command, commandType, response);
}
}
else
{
ExecuteCommand(command, commandType, response);
}
}
catch (KeyNotFoundException)
{
// This indicates we couldn't find a handler so we gotta bail...
this.OnCommandExecuting(new CommandExecutionStatusChangedEventArgs(command, CommandExecutionStatus.Failing));
response.Exception = new CommandHandlerNotFoundException();
response.CommandExecutionResult = CommandExecutionResult.Failed;
if (ThrowExceptionOnFailure)
{
throw response.Exception;
}
}
catch (Exception ex)
{
this.OnCommandExecuting(new CommandExecutionStatusChangedEventArgs(command, CommandExecutionStatus.Failing));
response.Exception = ex;
response.CommandExecutionResult = CommandExecutionResult.Failed;
if (ThrowExceptionOnFailure)
{
throw;
}
}
this.OnCommandExecuting(new CommandExecutionStatusChangedEventArgs(command, CommandExecutionStatus.Finished));
return(response);
}
private void ExecuteCommand <TResponseData>(ICommand <TResponseData> command, Type commandType, CommandHandlerResponse <TResponseData> response)
{
var func = createCommandDelegates.GetOrAdd(Tuple.Create(commandType, typeof(TResponseData)), GenerateCommandDelegate);
var watch = System.Diagnostics.Stopwatch.StartNew();
response.Data = (TResponseData)func(this, command);
watch.Stop();
response.ExecutionTimeInMilliseconds = watch.ElapsedMilliseconds;
response.CommandExecutionResult = CommandExecutionResult.Succeeded;
}