public void Handle(Command cmd)
{
var export = _router.FindExport(cmd);
object target = null;
try
{
target = _instantiationStrategy.Instantiate(export.Type);
}
catch(Exception ex)
{
var msg = string.Format("Unable to instantiate type {0}", export.Type.FullName);
throw new InvocationException(msg, ex);
}
var parameters = new List<object>();
if (export.ParameterType != null)
{
try
{
parameters.Add(_parameterBinder.BuildParameter(export.ParameterType, cmd.Args));
}
catch (Exception ex)
{
var msg = string.Format("Unable to bind parameter type {0}", export.ParameterType.FullName);
throw new InvocationException(msg, ex);
}
}
export.Method.Invoke(target, parameters.ToArray());
}
public Export FindExport(Command command)
{
try
{
var @namespace = command.Namespace.HasValue() ? command.Namespace : _routingInfo.DefaultNamespace;
return _routingInfo.ExportsInNamespace(@namespace).Single(export => export.Name == command.Name);
}
catch (Exception)
{
throw new RoutingException(command.CommandString);
}
}
public void Handle(Command cmd)
{
if (cmd.CommandString == "help" && cmd.Args.Length > 0)
{
var referencedCommand = Command.Parse(cmd.Args);
PrintCommandHelp(referencedCommand);
}
else
{
PrintUsage();
}
}
public void PrintCommandHelp(Command cmd)
{
var export = _router.FindExport(cmd);
Console.Write(_parameterHelpProvider.GetHelp(export.ParameterType));
}
public bool CanHandle(Command cmd)
{
return cmd.CommandString == null || cmd.CommandString == "help";
}