public async Task <TResult> HandleAsync(TQuery query)
{
var result = await _innerHandler.HandleAsync(query).ConfigureAwait(false);
string resultString;
try
{
resultString = result.ToJson();
}
catch (Exception)
{
resultString = "{}";
}
_logger.Info($"{query.GetType().Name} ====> {_innerHandler.GetType().Name}: {query.ToJson()} => {resultString}");
return(result);
}
protected virtual IAsyncQueryHandler <TQuery, TResult> Resolve <TQuery, TResult>(CancellationToken cancellationToken) where TQuery : IQuery <TResult>
{
cancellationToken.ThrowIfCancellationRequested();
this.logger.LogDebug($"Resolving the \"{typeof(TQuery).GetTypeInfo().Name}\" query and \"{typeof(TResult).GetTypeInfo().Name}\" result.");
IAsyncQueryHandler <TQuery, TResult> handler = this.GetQueryHandler <TQuery, TResult>();
if (handler == null)
{
this.logger.LogCritical($"Trying to resolve a handler for the \"{typeof(TQuery).GetTypeInfo().Name}\" query and \"{typeof(TResult).GetTypeInfo().Name}\" result failed. No handler found.");
throw new RequiredHandlerNotFoundException();
}
//try {
IEnumerable <Attribute> attrs = typeof(TQuery).GetTypeInfo().GetCustomAttributes();
// Any permission check decorator found on the command?
if (attrs.Any(a => a.GetType() == typeof(CreativeMinds.CQS.Decorators.CheckPermissionsAttribute)) ||
attrs.Any(a => a.GetType().GetTypeInfo().BaseType == typeof(CreativeMinds.CQS.Decorators.CheckPermissionsAttribute)))
{
this.logger.LogDebug($"Found a permission check decorator for the \"{typeof(TQuery).GetTypeInfo().Name}\" query and \"{typeof(TResult).GetTypeInfo().Name}\" result.");
// Let's get the permission check handler, we need it.
IAsyncQueryHandler <TQuery, TResult> permissionCheckHandler = this.GetPermissionCheckHandler <TQuery, TResult>(handler);
if (permissionCheckHandler == null)
{
CreativeMinds.CQS.Decorators.CheckPermissionsAttribute attr = attrs.FirstOrDefault(a => a.GetType() == typeof(CreativeMinds.CQS.Decorators.CheckPermissionsAttribute)) as CreativeMinds.CQS.Decorators.CheckPermissionsAttribute;
if (attr == null)
{
attr = attrs.FirstOrDefault(a => a.GetType().BaseType == typeof(CreativeMinds.CQS.Decorators.CheckPermissionsAttribute)) as CreativeMinds.CQS.Decorators.CheckPermissionsAttribute;
}
if (attr.FailWhenMissing == true)
{
throw new NoCheckPermissionsHandlerImplementedException(typeof(TQuery), typeof(TResult));
}
else
{
this.logger.LogWarning($"A permission check decorator was found for the \"{typeof(TQuery).GetTypeInfo().Name}\" query and \"{typeof(TResult).GetTypeInfo().Name}\" result, but no handler was located.");
}
}
else
{
handler = permissionCheckHandler;
this.logger.LogDebug($"Found the permission check handle \"{permissionCheckHandler.GetType().Name}\" for the \"{typeof(TQuery).Name}\" query and \"{typeof(TResult).GetTypeInfo().Name}\" result.");
}
}
else
{
this.logger.LogWarning($"No permission decorator found for the \"{typeof(TQuery).GetTypeInfo().Name}\" query and \"{typeof(TResult).GetTypeInfo().Name}\" result.");
}
// Any validation decorator found on the query?
if (attrs.Any(a => a.GetType() == typeof(CreativeMinds.CQS.Decorators.ValidateAttribute)))
{
this.logger.LogDebug($"Found a validation decorator for the \"{typeof(TQuery).Name}\" query and \"{typeof(TResult).GetTypeInfo().Name}\" result.");
// Let's get the validation handler, we need it.
IAsyncQueryHandler <TQuery, TResult> validationHandler = this.GetValidationHandler <TQuery, TResult>(handler);
if (validationHandler == null)
{
CreativeMinds.CQS.Decorators.ValidateAttribute attr = attrs.FirstOrDefault(a => a.GetType() == typeof(CreativeMinds.CQS.Decorators.ValidateAttribute)) as CreativeMinds.CQS.Decorators.ValidateAttribute;
if (attr == null)
{
attr = attrs.FirstOrDefault(a => a.GetType().BaseType == typeof(CreativeMinds.CQS.Decorators.ValidateAttribute)) as CreativeMinds.CQS.Decorators.ValidateAttribute;
}
if (attr.FailWhenMissing == true)
{
throw new NoValidatorHandlerImplementedException(typeof(TQuery), typeof(TResult));
}
else
{
this.logger.LogWarning($"A validation decorator was found for the \"{typeof(TQuery).GetTypeInfo().Name}\" query and \"{typeof(TResult).GetTypeInfo().Name}\" result, but no handler was located.");
}
}
else
{
handler = validationHandler;
this.logger.LogDebug($"Found the validation handle \"{validationHandler.GetType().Name}\" for the \"{typeof(TQuery).Name}\" query and \"{typeof(TResult).GetTypeInfo().Name}\" result.");
}
}
else
{
this.logger.LogWarning($"No validation decorator found for the \"{typeof(TQuery).GetTypeInfo().Name}\" query and \"{typeof(TResult).GetTypeInfo().Name}\" result.");
}
//}
//catch (Exception ex) {
// // TODO: log
// throw ex;
//}
this.logger.LogInformation($"Found the \"{handler.GetType().Name}\" QueryHandler for the \"{typeof(TQuery).GetTypeInfo().Name}\" query and \"{typeof(TResult).GetTypeInfo().Name}\" result");
return(handler);
}