bool IResumableActivity.OnStart(IRunState context, ActivityInputs inputs)
{
Workflow workflowToProxy;
using (CustomContext.SetContext(context.EffectiveSecurityContext))
{
workflowToProxy = ActivityInstance.As <WorkflowProxy>().WorkflowToProxy;
}
var wfArgs = workflowToProxy.As <WfActivity>().GetInputArguments().Select(arg => arg.Name);
// copy across matching arguments. Arguments that are supplied that are not used are ignored.
var matchingInputs = inputs.Where(kvp => wfArgs.Contains(kvp.Key.Name)).ToDictionary(kvp => kvp.Key.Name, kvp => kvp.Value);
if (inputs.Count != matchingInputs.Count) // We have some mismatched parameters
{
var expected = String.Join(", ", wfArgs);
var actual = String.Join(", ", inputs.Select(i => i.Key.Name));
throw new WorkflowRunException($"Mismatched inputs to workflow. (Have the proxied workflows inputs changed?)\n Expected: {expected}\n Actual: {actual}");
}
context.WorkflowInvoker.PostEvent(new ChildWorkflowStartEvent(workflowToProxy, matchingInputs, context.WorkflowRun));
// note, we always rely on the resume for handling the completion.
return(false);
}
public override void Validate(WorkflowMetadata metadata)
{
base.Validate(metadata);
var workflowToProxy = ActivityInstance.As <WorkflowProxy>().WorkflowToProxy;
if (workflowToProxy == null)
{
metadata.AddValidationError("Workflow to run has not been set.");
}
//
// The proxy workflow will be validated separately
//
}