/// <summary>
/// Binds parameter inputs in command instance.
/// </summary>
public static void BindParameters(this CommandSchema commandSchema, ICommand instance, IReadOnlyList <CommandParameterInput> parameterInputs)
{
IReadOnlyList <CommandParameterSchema> parameters = commandSchema.Parameters;
// All inputs must be bound
int remainingParameters = parameters.Count;
int remainingInputs = parameterInputs.Count;
if (remainingParameters > remainingInputs)
{
throw ArgumentBindingExceptions.ParameterNotSet(parameters.TakeLast(remainingParameters - remainingInputs));
}
// Scalar parameters
int i = 0;
for (; i < parameters.Count && parameters[i].IsScalar; ++i)
{
CommandParameterSchema parameter = parameters[i];
CommandParameterInput scalarInput = parameterInputs[i];
parameter.BindOn(instance, scalarInput.Value);
--remainingParameters;
--remainingInputs;
}
// Non-scalar parameter (only one is allowed)
if (i < parameters.Count && !parameters[i].IsScalar)
{
CommandParameterSchema nonScalarParameter = parameters[i];
string[] nonScalarValues = parameterInputs.TakeLast(remainingInputs)
.Select(p => p.Value)
.ToArray();
// Parameters are required by default and so a non-scalar parameter must be bound to at least one value
if (!nonScalarValues.Any())
{
throw ArgumentBindingExceptions.ParameterNotSet(new[] { nonScalarParameter });
}
nonScalarParameter.BindOn(instance, nonScalarValues);
--remainingParameters;
remainingInputs = 0;
}
// Ensure all inputs were bound
if (remainingInputs > 0)
{
throw ArgumentBindingExceptions.UnrecognizedParametersProvided(parameterInputs.TakeLast(remainingInputs));
}
}
public async Task HandleAsync(ICliContext context, CommandPipelineHandlerDelegate next, CancellationToken cancellationToken)
{
//Get current CLI mode and input directives
Type currentModeType = _applicationLifetime.CurrentModeType !;
IReadOnlyList <DirectiveInput> directives = context.Input.Directives;
//Initialize collections
List <IDirective> directivesInstances = new List <IDirective>();
List <IPipelinedDirective> pipelinedDirectivesInstances = new List <IPipelinedDirective>();
//Process directive input
foreach (DirectiveInput directiveInput in directives)
{
// Try to get the directive matching the input or fallback to default
DirectiveSchema directive = context.RootSchema.TryFindDirective(directiveInput.Name) ?? throw ArgumentBindingExceptions.UnknownDirectiveName(directiveInput);
// Handle interactive directives not supported in current mode
if (!directive.CanBeExecutedInMode(currentModeType))
{
throw ModeEndUserExceptions.DirectiveExecutedInInvalidMode(directive, currentModeType);
}
// Get directive instance
IDirective instance = (IDirective)_serviceProvider.GetRequiredService(directive.Type);
//Initialize directive
await instance.OnInitializedAsync(cancellationToken);
//Add directive to list
directivesInstances.Add(instance);
if (directive.IsPipelinedDirective && instance is IPipelinedDirective pd)
{
pipelinedDirectivesInstances.Add(pd);
}
}
//Set directives lists in context
CliContext internalCliContext = (CliContext)context;
internalCliContext.Directives = directivesInstances;
internalCliContext.PipelinedDirectives = pipelinedDirectivesInstances;
await next();
}
