public async Task <DependencyViewModel> Get([FromQuery] DateTime?startTimestamp, [FromQuery] DateTime?finishTimestamp)
{
var spans = await _spanQuery.GetSpanDependencies(
new DependencyQuery { StartTimestamp = startTimestamp?.ToUniversalTime(), FinishTimestamp = finishTimestamp?.ToUniversalTime() });
var dependency = new DependencyViewModel();
dependency.Nodes = GetNodes(spans).ToList();
var dependencies = spans.Where(x => x.References.Any(r => r.Reference == "ChildOf")).GroupBy(x =>
{
var @ref = x.References.First();
var parent = spans.FirstOrDefault(s => s.SpanId == @ref.ParentId);
return(new { source = ServiceHelpers.GetService(parent), target = ServiceHelpers.GetService(x) });
});
foreach (var item in dependencies)
{
if (item.Key.source == item.Key.target)
{
continue;
}
dependency.Edges.Add(new EdgeViewModel
{
Source = item.Key.source,
Target = item.Key.target,
Value = item.Count()
});
}
return(dependency);
}
private List <TraceService> GetTraceServices(Trace trace)
{
var traceServices = new List <TraceService>();
foreach (var span in trace.Spans)
{
traceServices.Add(new TraceService(ServiceHelpers.GetService(span)));
}
return(traceServices);
}