static JObject SerializeSampler(ISampler sampler)
{
var samplerObj = new JObject();
var fields = sampler.GetType().GetFields();
foreach (var field in fields)
{
samplerObj.Add(new JProperty(field.Name, JToken.FromObject(field.GetValue(sampler))));
}
if (sampler.GetType() != typeof(ConstantSampler))
{
var rangeProperty = sampler.GetType().GetProperty("range");
if (rangeProperty != null)
{
var range = (FloatRange)rangeProperty.GetValue(sampler);
var rangeObj = new JObject
{
new JProperty("minimum", range.minimum),
new JProperty("maximum", range.maximum)
};
samplerObj.Add(new JProperty("range", rangeObj));
}
}
return(samplerObj);
}
public SamplerElement(SerializedProperty property, Parameter parameter)
{
m_Property = property;
var template = AssetDatabase.LoadAssetAtPath <VisualTreeAsset>(
$"{StaticData.uxmlDir}/Sampler/SamplerElement.uxml");
template.CloneTree(this);
m_Parameter = parameter;
m_Sampler = GetSamplerFromSerializedObject();
if (m_Sampler == null)
{
CreateSampler(typeof(UniformSampler));
}
var samplerName = this.Q <Label>("sampler-name");
samplerName.text = UppercaseFirstLetter(m_Property.name);
m_Properties = this.Q <VisualElement>("fields-container");
m_SamplerTypeDropdown = this.Q <ToolbarMenu>("sampler-type-dropdown");
m_SamplerTypeDropdown.text = SamplerUtility.GetSamplerDisplayName(m_Sampler.GetType());;
foreach (var samplerType in StaticData.samplerTypes)
{
var displayName = SamplerUtility.GetSamplerDisplayName(samplerType);;
m_SamplerTypeDropdown.menu.AppendAction(
displayName,
a => { ReplaceSampler(samplerType); },
a => DropdownMenuAction.Status.Normal);
}
CreatePropertyFields();
}
static void DeserializeSampler(ISampler sampler, JObject samplerObj)
{
foreach (var samplerFieldPair in samplerObj)
{
if (samplerFieldPair.Key == "range")
{
var rangeObj = (JObject)samplerFieldPair.Value;
var field = sampler.GetType().GetField(samplerFieldPair.Key);
var range = new FloatRange(rangeObj["minimum"].ToObject <float>(), rangeObj["maximum"].ToObject <float>());
field.SetValue(sampler, range);
}
else
{
var field = sampler.GetType().GetField(samplerFieldPair.Key);
if (field != null)
{
field.SetValue(sampler, JsonConvert.DeserializeObject(samplerFieldPair.Value.ToString(), field.FieldType));
}
}
}
}
void CopyFloatRangeToNewSampler(ISampler newSampler)
{
if (m_RangeProperty == null)
{
return;
}
var rangeField = newSampler.GetType().GetField(m_RangeProperty.name);
if (rangeField == null)
{
return;
}
var range = new FloatRange(
m_RangeProperty.FindPropertyRelative("minimum").floatValue,
m_RangeProperty.FindPropertyRelative("maximum").floatValue);
rangeField.SetValue(newSampler, range);
}
static SamplerOptions SerializeSampler(ISampler sampler)
{
var samplerData = new SamplerOptions();
if (sampler is Samplers.ConstantSampler constantSampler)
{
samplerData.defaultSampler = new ConstantSampler
{
value = constantSampler.value
}
}
;
else if (sampler is Samplers.UniformSampler uniformSampler)
{
samplerData.defaultSampler = new UniformSampler
{
min = uniformSampler.range.minimum,
max = uniformSampler.range.maximum
}
}
;
else if (sampler is Samplers.NormalSampler normalSampler)
{
samplerData.defaultSampler = new NormalSampler
{
min = normalSampler.range.minimum,
max = normalSampler.range.maximum,
mean = normalSampler.mean,
standardDeviation = normalSampler.standardDeviation
}
}
;
else
{
throw new ArgumentException($"Invalid sampler type ({sampler.GetType()})");
}
return(samplerData);
}
void CreatePropertyFields()
{
m_RangeProperty = null;
m_Properties.Clear();
var currentProperty = m_Property.Copy();
var nextSiblingProperty = m_Property.Copy();
nextSiblingProperty.NextVisible(false);
if (currentProperty.NextVisible(true))
{
do
{
if (SerializedProperty.EqualContents(currentProperty, nextSiblingProperty))
{
break;
}
if (currentProperty.type == "FloatRange")
{
m_RangeProperty = currentProperty.Copy();
m_Properties.Add(new FloatRangeElement(m_RangeProperty));
}
else
{
var propertyField = new PropertyField(currentProperty.Copy());
propertyField.Bind(m_Property.serializedObject);
var originalField = m_Sampler.GetType().GetField(currentProperty.name);
var tooltipAttribute = originalField.GetCustomAttributes(true).ToList().Find(att => att.GetType() == typeof(TooltipAttribute));
if (tooltipAttribute != null)
{
propertyField.tooltip = (tooltipAttribute as TooltipAttribute)?.tooltip;
}
m_Properties.Add(propertyField);
}
}while (currentProperty.NextVisible(false));
}
}
public static OperationsTracingOptions UseSampler(
this OperationsTracingOptions options,
ISampler sampler)
{
EnsureArg.IsNotNull(options, nameof(options));
EnsureArg.IsNotNull(options.Context, nameof(options.Context));
options.Context.Services.AddSingleton(sampler);
options.Context.Messages.Add($"naos services builder: tracing sampler used (type={sampler.GetType().Name})");
return(options);
}
public static void ConfigureServices(InstanceInfo instanceInfo, IServiceCollection services, bool isPublicWebService)
{
var jaegerAgentHost = Environment.GetEnvironmentVariable("TRACING_AGENT_HOST");// ?? "localhost";
var samplingRateParam = Environment.GetEnvironmentVariable("TRACING_RATE") ?? "100";
int.TryParse(samplingRateParam, out var samplingRate);
if (samplingRate > 100)
{
samplingRate = 100;
}
if (samplingRate < 0)
{
samplingRate = 0;
}
if (string.IsNullOrEmpty(jaegerAgentHost) || samplingRate == 0)
{
Console.WriteLine("Tracing is disabled (environments TRACING_AGENT_HOST, TRACING_RATE)");
services.AddSingleton <ITracer>(new NoTracer());
return;
}
services.AddSingleton <ITracer>(serviceProvider =>
{
var serviceName = Assembly.GetEntryAssembly().GetName().Name;
//ILoggerFactory loggerFactory = serviceProvider.GetRequiredService<ILoggerFactory>();
//var loggingReporter = new LoggingReporter(loggerFactory);
var reporter = new RemoteReporter.Builder()
.WithSender(new UdpSender(jaegerAgentHost, 6831, 0))
.Build();
//https://www.jaegertracing.io/docs/sampling/
ISampler sampler = samplingRate == 100
? new ConstSampler(sample: true) as ISampler
: new ProbabilisticSampler(samplingRate / 100) as ISampler;
Logger().Information("Tracer use sampler {Sampler}", sampler.GetType().Name);
ITracer tracer = new Tracer.Builder(serviceName)
//.WithLoggerFactory(loggerFactory)
.WithSampler(sampler)
.WithReporter(reporter)
//.WithReporter(new CompositeReporter(loggingReporter, reporter))
.Build();
GlobalTracer.Register(tracer);
return(tracer);
});
// Prevent endless loops when OpenTracing is tracking HTTP requests to Jaeger.
services.Configure <HttpHandlerDiagnosticOptions>(options =>
{
options.IgnorePatterns.Clear();
options.IgnorePatterns.Add(request => request.RequestUri.Port == 8086 && request.RequestUri.PathAndQuery.Contains("write?db=appmetrics"));
});
// Enables OpenTracing instrumentation for ASP.NET Core, CoreFx, EF Core
services.AddOpenTracing(builder =>
{
builder.ConfigureAspNetCore(options =>
{
options.Hosting.ExtractEnabled = context => !isPublicWebService; // never trust TraceId from user web-requests
options.Hosting.OnRequest = (span, context) =>
{
span.SetTag("InstanceId", instanceInfo.Id.ToString());
};
});
}
);
}