/// <summary>
/// Create an <see cref="ILoggerProvider"/> for Google Cloud Logging.
/// </summary>
/// <param name="logTarget">Where to log to. Must not be null.</param>
/// <param name="serviceProvider">Optional, the service provider to resolve additional services from. May be null,
/// in which case additional services (such as custom labels) will not be used.</param>
/// <param name="options">Optional, options for the logger.</param>
/// <param name="client">Optional, logging client.</param>
public static GoogleLoggerProvider Create(LogTarget logTarget, IServiceProvider serviceProvider,
LoggerOptions options = null, LoggingServiceV2Client client = null)
{
// Check params and set defaults if unset.
GaxPreconditions.CheckNotNull(logTarget, nameof(logTarget));
client = client ?? LoggingServiceV2Client.Create();
options = options ?? LoggerOptions.Create();
// Get the proper consumer from the options and add a logger provider.
IConsumer <LogEntry> consumer = LogConsumer.Create(client, options.BufferOptions, options.RetryOptions);
return(new GoogleLoggerProvider(consumer, logTarget, options, serviceProvider));
}
internal GoogleLogger(IConsumer <LogEntry> consumer, LogTarget logTarget, LoggerOptions loggerOptions, string logName,
Action <IServiceProvider, Dictionary <string, string> > obsoleteLabelsGetter,
Action <IServiceProvider, LogEntry, TraceTarget> obsoleteTraceContextGetter,
IClock clock = null, IServiceProvider serviceProvider = null)
{
_logTarget = GaxPreconditions.CheckNotNull(logTarget, nameof(logTarget));
_traceTarget = logTarget.Kind == LogTargetKind.Project ?
TraceTarget.ForProject(logTarget.ProjectId) : null;
_consumer = GaxPreconditions.CheckNotNull(consumer, nameof(consumer));
_loggerOptions = GaxPreconditions.CheckNotNull(loggerOptions, nameof(loggerOptions));
_logName = GaxPreconditions.CheckNotNullOrEmpty(logName, nameof(logName));
_fullLogName = logTarget.GetFullLogName(_loggerOptions.LogName);
_serviceProvider = serviceProvider;
_clock = clock ?? SystemClock.Instance;
_obsoleteTraceContextGetter = obsoleteTraceContextGetter;
_ambientScopeManager = new AmbientScopeManager(_loggerOptions, _serviceProvider, obsoleteLabelsGetter);
}
/// <summary>
/// <see cref="ILoggerProvider"/> for Google Cloud Logging.
/// </summary>
/// <param name="consumer">The consumer to push logs to. Must not be null.</param>
/// <param name="logTarget">Where to log to. Must not be null.</param>
/// <param name="loggerOptions">The logger options. Must not be null.</param>
/// <param name="serviceProvider">The service provider to resolve additional services from.</param>
internal GoogleLoggerProvider(IConsumer <LogEntry> consumer, LogTarget logTarget, LoggerOptions loggerOptions, IServiceProvider serviceProvider)
{
_consumer = GaxPreconditions.CheckNotNull(consumer, nameof(consumer));
_logTarget = GaxPreconditions.CheckNotNull(logTarget, nameof(logTarget));
_loggerOptions = GaxPreconditions.CheckNotNull(loggerOptions, nameof(loggerOptions));
_serviceProvider = serviceProvider;
var writer = loggerOptions.LoggerDiagnosticsOutput;
if (writer != null)
{
// The log name is the ASP.NET Core log name, not the "/projects/xyz/logs/abc" log name in the resource.
// We don't currently use this in the diagnostics, but if we ever start to do so, SampleLogName seems
// like a reasonably clear example.
((GoogleLogger)CreateLogger("SampleLogName")).WriteDiagnostics(writer);
}
}
internal AmbientScopeManager(LoggerOptions options, IServiceProvider serviceProvider, Action <IServiceProvider, Dictionary <string, string> > obsoleteLabelsGetter)
{
_permanentParent = options?.Labels is null ? null : GoogleLoggerScope.CreateScope(new LabellingScopeState(options.Labels), null);
_serviceProvider = serviceProvider;
_obsoleteLabelsGetter = obsoleteLabelsGetter;
}