/// <summary>
/// Initializes a new instance of the <see cref="CommandService"/> class.
/// </summary>
/// <param name="serviceProvider">The service provider to use to instantiate commands.</param>
public CommandService(IServiceProvider?serviceProvider)
{
_serviceProvider = serviceProvider;
_transientCommands = new Dictionary <string, Type>();
_singletonCommands = new Dictionary <string, ICommand>();
_processors = new List <IProcessorStep>();
_compositeProcessor = ProcessCommand;
}
private void ComposeProcessor()
{
NextProcessorDel processor = ProcessCommand;
// Include the additional processors by starting with the final processor and building
// an invocation chain in reverse.
for (var i = _processors.Count - 1; i >= 0; i--)
{
var nextProcessor = processor;
var preprocessor = _processors[i];
processor = context => preprocessor.Process(context, nextProcessor);
}
_compositeProcessor = processor;
}
