private async Task <object?> TryEvaluatePropertyAsync(IActivityBlueprintWrapper activityWrapper, string propertyName, CancellationToken cancellationToken)
{
try
{
return(await activityWrapper.EvaluatePropertyValueAsync(propertyName, cancellationToken));
}
catch
{
// ignored
}
return(null);
}
private async ValueTask <Variables> GetActivityPropertiesAsync(IWorkflowBlueprintWrapper workflowBlueprintWrapper, IActivityBlueprintWrapper activityBlueprintWrapper, CancellationToken cancellationToken)
{
var workflowBlueprint = workflowBlueprintWrapper.WorkflowBlueprint;
var activityBlueprint = activityBlueprintWrapper.ActivityBlueprint;
var activityId = activityBlueprint.Id;
var activityPropertyValueProviders = workflowBlueprint.ActivityPropertyProviders.GetProviders(activityId);
var activityWrapper = workflowBlueprintWrapper.GetActivity(activityId) !;
var properties = new Variables();
if (activityPropertyValueProviders == null)
{
return(properties);
}
foreach (var valueProvider in activityPropertyValueProviders)
{
var value = await activityWrapper.EvaluatePropertyValueAsync(valueProvider.Key, cancellationToken);
properties.Set(valueProvider.Key, value);
}
return(properties);
}
public TriggerProviderContext(IWorkflowBlueprintWrapper workflowWrapper, IActivityBlueprintWrapper activityWrapper)
{
WorkflowWrapper = workflowWrapper;
ActivityWrapper = activityWrapper;
}
private static async Task <object?> GetPropertyValueAsync(IWorkflowBlueprint workflowBlueprint, IActivityBlueprintWrapper activityBlueprintWrapper, ActivityInputDescriptor propertyDescriptor, CancellationToken cancellationToken)
{
if (propertyDescriptor.IsDesignerCritical)
{
try
{
return(await activityBlueprintWrapper.EvaluatePropertyValueAsync(propertyDescriptor.Name, cancellationToken));
}
catch (Exception e)
{
throw new WorkflowException("Failed to evaluate a designer-critical property value. Please make sure that the value does not rely on external context.", e);
}
}
return(workflowBlueprint.GetActivityPropertyRawValue(activityBlueprintWrapper.ActivityBlueprint.Id, propertyDescriptor.Name));
}
private async ValueTask <(Variables InputProperties, Variables OutputProperties)> GetActivityPropertiesAsync(IWorkflowBlueprintWrapper workflowBlueprintWrapper, IActivityBlueprintWrapper activityBlueprintWrapper, CancellationToken cancellationToken)
{
var activityBlueprint = activityBlueprintWrapper.ActivityBlueprint;
var activityType = await _activityTypeService.GetActivityTypeAsync(activityBlueprint.Type, cancellationToken);
var activityDescriptor = await _activityTypeService.DescribeActivityType(activityType, cancellationToken);
var activityId = activityBlueprint.Id;
var activityWrapper = workflowBlueprintWrapper.GetActivity(activityId) !;
var inputProperties = new Variables();
var outputProperties = new Variables();
foreach (var property in activityDescriptor.InputProperties)
{
var value = await GetPropertyValueAsync(workflowBlueprintWrapper.WorkflowBlueprint, activityWrapper, property, cancellationToken);
inputProperties.Set(property.Name, value);
}
foreach (var property in activityDescriptor.OutputProperties)
{
// Declare output properties to have at least a complete schema.
outputProperties.Set(property.Name, null);
}
return(inputProperties, outputProperties);
}
