/// <summary>
/// Initialises a new instance of the <see cref="BlueprintApiBuilder" /> class with the given
/// <see cref="IServiceCollection" /> in to which all DI registrations will be made.
/// </summary>
/// <param name="services">The service collection to configure.</param>
public BlueprintApiBuilder(IServiceCollection services)
{
this.Services = services;
this._options = new BlueprintApiOptions();
this._pipelineBuilder = new PipelineBuilder(this);
this._operationScanner = new OperationScanner();
this._executionScanner = new ExecutorScanner();
if (BlueprintEnvironment.IsPrecompiling)
{
// The default strategy is to build to a DLL to the temp folder
this.Compilation(c => c.UseFileCompileStrategy(Path.GetDirectoryName(typeof(BlueprintApiBuilder).Assembly.Location)));
}
else
{
// The default strategy is to build to a DLL to the temp folder
this.Compilation(c => c.UseFileCompileStrategy(Path.Combine(Path.GetTempPath(), "Blueprint.Compiler")));
}
}
internal void FindAndRegister(
OperationScanner operationScanner,
IServiceCollection services,
List <ApiOperationDescriptor> operations)
{
var problems = new List <string>();
foreach (var operation in operations)
{
foreach (var scanner in this._scanners)
{
var handlers = scanner.FindHandlers(services, operation.OperationType, operationScanner.ScannedAssemblies);
foreach (var handler in handlers)
{
// Not ideal using exceptions here, done to avoid duplicating the exception messaging around multiple operations
try
{
operation.RegisterHandler(handler);
}
catch (Exception e)
{
problems.Add(e.Message);
}
}
}
if (operation.Handlers.Count == 0)
{
problems.Add($"Could not find any handlers for the operation {operation}");
}
}
if (problems.Any())
{
throw new InvalidOperationException($"Problems were found during handler scanning:\n\n{string.Join("\n", problems)}");
}
}
