/// <summary>
/// Responsible for setting up an overarching Scope and then registering with the end of pipeline disposal.
/// </summary>
/// <param name="httpContext">Instance of Microsoft.AspNetCore.Http.DefaultHttpContext</param>
internal static void Initialize(object httpContext)
{
var context = new AspNetAmbientContext(TopLevelOperationName, httpContext);
if (context.AbortRegistration)
{
return;
}
if (httpContext.TryGetPropertyValue("Items", out IDictionary <object, object> contextItems))
{
contextItems[HttpContextKey] = context;
}
}
/// <summary>
/// Entry method for invoking the beginning of every web server request pipeline
/// </summary>
/// <param name="httpContext">Instance being instrumented.</param>
/// <param name="features">Initialize features.</param>
/// <param name="opCode">The OpCode used in the original method call.</param>
/// <param name="mdToken">The mdToken of the original method call.</param>
/// <param name="moduleVersionPtr">A pointer to the module version GUID.</param>
// [InterceptMethod(
// TargetAssembly = "Microsoft.AspNetCore.Http.Abstractions",
// TargetType = DefaultHttpContextTypeName,
// TargetSignatureTypes = new[] { ClrNames.Void, ClrNames.Ignore })]
// ***************************************************************
// DISABLED UNTIL WE FIX SCOPING ISSUES AT HTTP CONTEXT LEVEL
// ***************************************************************
public static void Initialize(object httpContext, object features, int opCode, int mdToken, long moduleVersionPtr)
{
if (httpContext == null)
{
throw new ArgumentNullException(nameof(httpContext));
}
var httpContextType = httpContext.GetInstrumentedType(DefaultHttpContextTypeName);
Action <object, object> instrumentedMethod;
try
{
instrumentedMethod =
MethodBuilder <Action <object, object> >
.Start(moduleVersionPtr, mdToken, opCode, nameof(Initialize))
.WithConcreteType(httpContextType)
.WithParameters(features)
.Build();
}
catch (Exception ex)
{
Log.ErrorRetrievingMethod(
exception: ex,
moduleVersionPointer: moduleVersionPtr,
mdToken: mdToken,
opCode: opCode,
instrumentedType: DefaultHttpContextTypeName,
methodName: nameof(Initialize),
instanceType: httpContext.GetType().AssemblyQualifiedName);
throw;
}
try
{
instrumentedMethod.Invoke(httpContext, features);
}
catch (Exception ex)
{
Log.Error(ex, $"Error calling {DefaultHttpContextTypeName}.{nameof(Initialize)}(...)");
throw;
}
if (Tracer.Instance.Settings.IsIntegrationEnabled(IntegrationName))
{
AspNetAmbientContext.Initialize(httpContext);
}
}
internal static AspNetAmbientContext RetrieveFromHttpContext(object httpContext)
{
AspNetAmbientContext context = null;
try
{
if (httpContext.TryGetPropertyValue("Items", out IDictionary <object, object> contextItems))
{
if (contextItems?.ContainsKey(HttpContextKey) ?? false)
{
context = contextItems[HttpContextKey] as AspNetAmbientContext;
}
}
}
catch (Exception ex)
{
Log.Error(ex, $"Error accessing {nameof(AspNetAmbientContext)}.");
}
return(context);
}
/// <summary>
/// Entry method for invoking the beginning of every web server request pipeline
/// </summary>
/// <param name="httpContext">Instance being instrumented.</param>
/// <param name="features">Initialize features.</param>
/// <param name="opCode">The OpCode used in the original method call.</param>
/// <param name="mdToken">The mdToken of the original method call.</param>
// [InterceptMethod(
// TargetAssembly = "Microsoft.AspNetCore.Http.Abstractions",
// TargetType = "Microsoft.AspNetCore.Http.DefaultHttpContext",
// TargetSignatureTypes = new[] { ClrNames.Void, ClrNames.Ignore })]
// ***************************************************************
// DISABLED UNTIL WE FIX SCOPING ISSUES AT HTTP CONTEXT LEVEL
// ***************************************************************
public static void Initialize(object httpContext, object features, int opCode, int mdToken)
{
var httpContextType = httpContext.GetType();
string methodDef = $"{httpContextType.FullName}.Initialize(IFeatureCollection features)";
Action <object, object> instrumentedMethod = null;
try
{
instrumentedMethod =
MethodBuilder <Action <object, object> >
.Start(Assembly.GetCallingAssembly(), mdToken, opCode, nameof(Initialize))
.WithConcreteType(httpContextType)
.WithParameters(features)
.Build();
}
catch (Exception ex)
{
Log.ErrorException($"Error retrieving {methodDef}", ex);
throw;
}
try
{
instrumentedMethod.Invoke(httpContext, features);
}
catch (Exception ex)
{
Log.ErrorException($"Error calling {methodDef}", ex);
throw;
}
if (Tracer.Instance.Settings.IsIntegrationEnabled(IntegrationName))
{
AspNetAmbientContext.Initialize(httpContext);
}
}
