void EnsureWorkflow()
{
var context = buildContext;
while (context != null)
{
var includeContext = context as IncludeContext;
if (includeContext != null && includeContext.Path == path)
{
var message = string.Format("Included workflow '{0}' includes itself.", path);
throw new InvalidOperationException(message);
}
context = context.ParentContext;
}
if (string.IsNullOrEmpty(path))
{
workflow = null;
description = null;
SetArgumentRange(0, 1);
}
else
{
var embeddedResource = IsEmbeddedResourcePath(path);
var lastWriteTime = embeddedResource ? DateTime.MaxValue : File.GetLastWriteTime(path);
if (workflow == null || lastWriteTime > writeTime)
{
var properties = workflow != null?GetXmlProperties() : xmlProperties;
using (var stream = GetWorkflowStream(path, embeddedResource))
using (var reader = XmlReader.Create(stream))
{
reader.MoveToContent();
var serializer = new XmlSerializer(typeof(WorkflowBuilder), reader.NamespaceURI);
var builder = (WorkflowBuilder)serializer.Deserialize(reader);
description = builder.Description;
workflow = builder.Workflow;
writeTime = lastWriteTime;
}
var parameterCount = workflow.GetNestedParameters().Count();
SetArgumentRange(0, parameterCount);
if (inspectWorkflow)
{
workflow = workflow.ToInspectableGraph();
}
if (properties != null)
{
SetXmlProperties(properties);
}
}
}
}
internal IncludeWorkflowBuilder(IncludeWorkflowBuilder builder, bool inspect)
: base(builder.ArgumentRange.LowerBound, builder.ArgumentRange.UpperBound)
{
inspectWorkflow = inspect;
workflow = builder.workflow;
if (workflow != null && inspect != builder.inspectWorkflow)
{
workflow = inspect ? workflow.ToInspectableGraph() : workflow.FromInspectableGraph();
}
writeTime = builder.writeTime;
name = builder.name;
path = builder.path;
description = builder.description;
xmlProperties = builder.xmlProperties;
}