public async Task TraceSingleAsync(Func <IHostBuilder> createHostBuilder)
{
IHost host = null;
try
{
host = createHostBuilder().Build();
await host.StartAsync();
ITraceContext traceContext = new SimpleTraceContext(null, null, true);
var tracerFactory = host.Services.GetRequiredService <Func <ITraceContext, IManagedTracer> >();
IManagedTracer tracer = tracerFactory(traceContext);
ContextTracerManager.SetCurrentTracer(tracer);
using (tracer.StartSpan(_testId))
{
IManagedTracer currentTracer = host.Services.GetRequiredService <IManagedTracer>();
currentTracer.RunInSpan(
() => Console.WriteLine("Using Cloud Trace from a non ASP.NET Core app"),
"testing_tracing");
}
var trace = TraceEntryPolling.Default.GetTrace(_testId, _startTime);
TraceEntryVerifiers.AssertParentChildSpan(trace, _testId, "testing_tracing");
}
finally
{
if (host is object)
{
await host.StopAsync();
}
}
}
public void Log_Trace()
{
string traceId = "external_trace_id";
ulong spanId = 1;
string fullTraceName = TraceTarget.ForProject(ProjectId).GetFullTraceName(traceId);
Predicate <IEnumerable <LogEntry> > matcher = logEntries =>
{
LogEntry entry = logEntries.Single();
return(entry.LogName == new LogName(ProjectId, BaseLogName).ToString() &&
entry.Trace == fullTraceName &&
entry.SpanId == $"{spanId:x16}");
};
var mockServiceProvider = new Mock <IServiceProvider>();
var traceContext = new SimpleTraceContext(traceId, spanId, true);
mockServiceProvider.Setup(sp => sp.GetService(typeof(ITraceContext))).Returns(traceContext);
var mockConsumer = new Mock <IConsumer <LogEntry> >();
mockConsumer.Setup(c => c.Receive(Match.Create(matcher)));
var logger = GetLogger(mockConsumer.Object, LogLevel.Information, serviceProvider: mockServiceProvider.Object, logName: BaseLogName);
logger.Log(LogLevel.Error, 0, LogMessage, s_exception, Formatter);
mockConsumer.VerifyAll();
}
public async Task TraceOutgoingAsync()
{
IHost host = null;
try
{
host = OutgoingHostBuilder.CreateHostBuilder().Build();
await host.StartAsync();
ITraceContext traceContext = new SimpleTraceContext(null, null, true);
var tracerFactory = host.Services.GetRequiredService <Func <ITraceContext, IManagedTracer> >();
IManagedTracer tracer = tracerFactory(traceContext);
ContextTracerManager.SetCurrentTracer(tracer);
// Let's just start a span with the test ID so we can find it faster.
// But we don't show this in sample code.
using (tracer.StartSpan(_testId))
{
// Sample: TraceOutgoingClientFactory
IHttpClientFactory clientFactory = host.Services.GetRequiredService <IHttpClientFactory>();
var httpClient = clientFactory.CreateClient("tracesOutgoing");
// Any code that makes outgoing requests.
var response = await httpClient.GetAsync("http://weather.com/");
// End sample
}
var trace = TraceEntryPolling.Default.GetTrace(_testId, _startTime);
TraceEntryVerifiers.AssertParentChildSpan(trace, _testId, "http://weather.com/");
}
finally
{
if (host is object)
{
await host.StopAsync();
}
}
}
public async Task TraceSingleAsync()
{
IHost host = null;
try
{
host = TroubleshootingHostBuilder.CreateHostBuilder().Build();
await host.StartAsync();
// Sample: SingleContext
ITraceContext traceContext = new SimpleTraceContext(null, null, true);
var tracerFactory = host.Services.GetRequiredService <Func <ITraceContext, IManagedTracer> >();
IManagedTracer tracer = tracerFactory(traceContext);
ContextTracerManager.SetCurrentTracer(tracer);
// End sample
// Let's just start a span with the test ID so we can find it faster.
// But we don't show this in sample code.
using (tracer.StartSpan(_testId))
{
// Sample: RunIn
IManagedTracer currentTracer = host.Services.GetRequiredService <IManagedTracer>();
currentTracer.RunInSpan(
() => Console.WriteLine("Using Cloud Trace from a non ASP.NET Core app"),
"testing_tracing");
// End sample
}
var trace = TraceEntryPolling.Default.GetTrace(_testId, _startTime);
TraceEntryVerifiers.AssertParentChildSpan(trace, _testId, "testing_tracing");
}
finally
{
if (host is object)
{
await host.StopAsync();
}
}
}
