private void SetRequestTracingOptions()
{
_requestTracingOptions = new RequestTracingOptions
{
HostType = TracingUtils.GetHostType(),
IsDevEnvironment = TracingUtils.IsDevEnvironment(),
IsKeyVaultConfigured = _options.IsKeyVaultConfigured,
IsKeyVaultRefreshConfigured = _options.IsKeyVaultRefreshConfigured
};
}
public static async Task CallWithRequestTracing(bool tracingEnabled, RequestType requestType, RequestTracingOptions requestTracingOptions, Func <Task> clientCall)
{
string correlationContextHeader = "";
if (tracingEnabled && requestTracingOptions != null)
{
correlationContextHeader = CreateCorrelationContextHeader(requestType, requestTracingOptions);
}
var activity = new Activity(RequestTracingConstants.DiagnosticHeaderActivityName);
activity.Start();
try
{
if (!string.IsNullOrWhiteSpace(correlationContextHeader))
{
activity.AddTag(RequestTracingConstants.CorrelationContextHeader, correlationContextHeader);
}
await clientCall().ConfigureAwait(false);
}
finally
{
activity.Stop();
}
}
private static string CreateCorrelationContextHeader(RequestType requestType, RequestTracingOptions requestTracingOptions)
{
IList <KeyValuePair <string, string> > correlationContextKeyValues = new List <KeyValuePair <string, string> >();
IList <string> correlationContextTags = new List <string>();
correlationContextKeyValues.Add(new KeyValuePair <string, string>(RequestTracingConstants.RequestTypeKey, Enum.GetName(typeof(RequestType), requestType)));
if (requestTracingOptions.HostType != HostType.Unidentified)
{
correlationContextKeyValues.Add(new KeyValuePair <string, string>(RequestTracingConstants.HostTypeKey, Enum.GetName(typeof(HostType), requestTracingOptions.HostType)));
}
if (requestTracingOptions.IsDevEnvironment)
{
correlationContextKeyValues.Add(new KeyValuePair <string, string>(RequestTracingConstants.EnvironmentKey, RequestTracingConstants.DevEnvironmentValue));
}
if (requestTracingOptions.IsKeyVaultConfigured)
{
correlationContextTags.Add(RequestTracingConstants.KeyVaultConfiguredTag);
}
if (requestTracingOptions.IsKeyVaultRefreshConfigured)
{
correlationContextTags.Add(RequestTracingConstants.KeyVaultRefreshConfiguredTag);
}
var sb = new StringBuilder();
foreach (KeyValuePair <string, string> kvp in correlationContextKeyValues)
{
if (sb.Length > 0)
{
sb.Append(",");
}
sb.Append($"{kvp.Key}={kvp.Value}");
}
foreach (string tag in correlationContextTags)
{
if (sb.Length > 0)
{
sb.Append(",");
}
sb.Append($"{tag}");
}
return(sb.ToString());
}
