public static void SetSpan(this HttpContext httpContext, TraceSpan span)
{
if (httpContext == null)
{
throw new ArgumentNullException(nameof(httpContext));
}
httpContext.Items[spanKey] = span;
}
public void AsChildren(TraceSpan span)
{
var httpContext = _httpContextAccessor.HttpContext;
var curSpan = httpContext.GetSpan();
if (curSpan == null)
{
return;
}
span.ParentId = curSpan.SpanId;
span.LaunchId = curSpan.LaunchId;
}
public static TraceSpan Exception(this TraceSpan span, Exception exception)
{
if (span == null)
{
return(span);
}
if (exception == null)
{
throw new ArgumentNullException(nameof(exception));
}
span.IsSuccess = false;
span.Tags.Error(exception.Message);
return(span);
}
public TraceSpan Start()
{
var httpContext = _httpContextAccessor.HttpContext;
var span = new TraceSpan
{
SpanId = Guid.NewGuid().ToString("N"),
StartTime = DateTime.Now,
SystemName = _options.SystemName,
Tags = new TraceTags {
{ TraceTagKeys.Environment, _options.Environment }
}
};
if (httpContext.Request.Headers.ContainsKey(TracerKeys.TraceId))
{
span.TraceId = httpContext.Request.Headers[TracerKeys.TraceId].FirstOrDefault();
}
else
{
span.TraceId = Guid.NewGuid().ToString("N");
}
if (httpContext.Request.Headers.ContainsKey(TracerKeys.TraceSpanId))
{
span.ParentId = httpContext.Request.Headers[TracerKeys.TraceSpanId].FirstOrDefault();
}
else
{
span.ParentId = "0";
}
if (httpContext.Request.Headers.ContainsKey(TracerKeys.TraceLaunchId))
{
span.LaunchId = httpContext.Request.Headers[TracerKeys.TraceLaunchId].FirstOrDefault();
}
return(span);
}
public static TraceSpan SetSuccess(this TraceSpan traceSpan, bool isSuccess)
{
traceSpan.IsSuccess = isSuccess;
return(traceSpan);
}
public static TraceSpan Finish(this TraceSpan traceSpan)
{
traceSpan.EndTime = DateTime.Now;
traceSpan.TimeLength = Math.Round((traceSpan.EndTime - traceSpan.StartTime).TotalMilliseconds, 4);
return(traceSpan);
}
public static TraceSpan SetOperationName(this TraceSpan traceSpan, string operationName)
{
traceSpan.OperationName = operationName;
return(traceSpan);
}