private static DogStatsdEndPoint BuildEndPoint(StatsdConfig config)
{
var statsdServerName = !string.IsNullOrEmpty(config.StatsdServerName)
? config.StatsdServerName
: Environment.GetEnvironmentVariable(StatsdConfig.AgentHostEnvVar);
var pipeName = !string.IsNullOrEmpty(config.PipeName)
? config.PipeName
: Environment.GetEnvironmentVariable(StatsdConfig.AgentPipeNameEnvVar);
if (string.IsNullOrEmpty(statsdServerName) && string.IsNullOrEmpty(pipeName))
{
// Ignore pipe name in the error message as its usage is internal only.
throw new ArgumentNullException(
$"{nameof(config)}.{nameof(config.StatsdServerName)} and"
+ $" {StatsdConfig.AgentHostEnvVar} environment variable not set");
}
return(new DogStatsdEndPoint
{
ServerName = statsdServerName,
PipeName = pipeName,
Port = GetPort(config.StatsdPort),
});
}
private ITransport CreateTransport(DogStatsdEndPoint endPoint, StatsdConfig config)
{
var serverName = endPoint.ServerName;
if (!string.IsNullOrEmpty(serverName))
{
if (serverName.StartsWith(UnixDomainSocketPrefix))
{
serverName = serverName.Substring(UnixDomainSocketPrefix.Length);
var unixEndPoint = new UnixEndPoint(serverName);
return(_factory.CreateUnixDomainSocketTransport(
unixEndPoint,
config.Advanced.UDSBufferFullBlockDuration));
}
return(CreateUDPTransport(endPoint));
}
var pipeName = endPoint.PipeName;
if (string.IsNullOrEmpty(pipeName))
{
throw new ArgumentException($"Error: empty {nameof(DogStatsdEndPoint)}");
}
return(_factory.CreateNamedPipeTransport(pipeName));
}
public StatsdData BuildStatsData(StatsdConfig config)
{
var endPoint = BuildEndPoint(config);
var transportData = CreateTransportData(endPoint, config);
var transport = transportData.Transport;
var globalTags = GetGlobalTags(config);
var serializers = CreateSerializers(config.Prefix, globalTags, config.Advanced.MaxMetricsInAsyncQueue);
var telemetry = CreateTelemetry(serializers.MetricSerializer, config, globalTags, endPoint, transportData.Transport);
var statsBufferize = CreateStatsBufferize(
telemetry,
transportData.Transport,
transportData.BufferCapacity,
config.Advanced,
serializers,
config.ClientSideAggregation);
var metricsSender = new MetricsSender(
statsBufferize,
new RandomGenerator(),
new StopWatchFactory(),
telemetry,
config.StatsdTruncateIfTooLong,
config.Advanced.MaxMetricsInAsyncQueue * 2);
return(new StatsdData(metricsSender, statsBufferize, transport, telemetry));
}
private Telemetry CreateTelemetry(
MetricSerializer metricSerializer,
StatsdConfig config,
string[] globalTags,
DogStatsdEndPoint dogStatsdEndPoint,
ITransport transport)
{
var telemetryFlush = config.Advanced.TelemetryFlushInterval;
if (telemetryFlush.HasValue)
{
var assembly = typeof(StatsdBuilder).GetTypeInfo().Assembly;
var version = assembly.GetName().Version.ToString();
var optionalTelemetryEndPoint = config.Advanced.OptionalTelemetryEndPoint;
ITransport telemetryTransport = transport;
if (optionalTelemetryEndPoint != null && !dogStatsdEndPoint.AreEquals(optionalTelemetryEndPoint))
{
telemetryTransport = CreateTransport(optionalTelemetryEndPoint, config);
}
return(_factory.CreateTelemetry(metricSerializer, version, telemetryFlush.Value, telemetryTransport, globalTags));
}
// Telemetry is not enabled
return(new Telemetry());
}
public StatsdData BuildStatsData(StatsdConfig config)
{
var endPoint = BuildEndPoint(config);
var transportData = CreateTransportData(endPoint, config);
var transport = transportData.Transport;
var globalTags = GetGlobalTags(config);
var telemetry = CreateTelemetry(config, globalTags, endPoint, transportData.Transport);
var statsBufferize = CreateStatsBufferize(
telemetry,
transportData.Transport,
transportData.BufferCapacity,
config.Advanced);
var serializers = CreateSerializers(config.Prefix, globalTags, config.Advanced.MaxMetricsInAsyncQueue);
#pragma warning disable 618
// MANUAL CHANGE: Obsolete ignore because this is internal code
var metricsSender = new MetricsSender(
statsBufferize,
new RandomGenerator(),
new StopWatchFactory(),
serializers,
telemetry,
config.StatsdTruncateIfTooLong);
#pragma warning restore 618
return(new StatsdData(metricsSender, statsBufferize, transport, telemetry));
}
private string[] GetGlobalTags(StatsdConfig config)
{
var globalTags = new List <string>();
if (config.ConstantTags != null)
{
globalTags.AddRange(config.ConstantTags);
}
AddTag(globalTags, _entityIdInternalTagKey, StatsdConfig.EntityIdEnvVar);
AddTag(globalTags, StatsdConfig.ServiceTagKey, StatsdConfig.ServiceEnvVar, config.ServiceName);
AddTag(globalTags, StatsdConfig.EnvironmentTagKey, StatsdConfig.EnvironmentEnvVar, config.Environment);
AddTag(globalTags, StatsdConfig.VersionTagKey, StatsdConfig.VersionEnvVar, config.ServiceVersion);
return(globalTags.ToArray());
}
private string[] GetGlobalTags(StatsdConfig config)
{
var globalTags = new List <string>();
if (config.ConstantTags != null)
{
globalTags.AddRange(config.ConstantTags);
}
string entityId = Environment.GetEnvironmentVariable(StatsdConfig.EntityIdEnvVar);
if (!string.IsNullOrEmpty(entityId))
{
globalTags.Add($"{_entityIdInternalTagKey}:{entityId}");
}
return(globalTags.ToArray());
}
private TransportData CreateTransportData(DogStatsdEndPoint endPoint, StatsdConfig config)
{
var transportData = new TransportData();
transportData.Transport = CreateTransport(endPoint, config);
switch (transportData.Transport.TransportType)
{
case TransportType.UDP: transportData.BufferCapacity = config.StatsdMaxUDPPacketSize; break;
case TransportType.UDS: transportData.BufferCapacity = config.StatsdMaxUnixDomainSocketPacketSize; break;
// use StatsdMaxUDPPacketSize for named pipe
case TransportType.NamedPipe: transportData.BufferCapacity = config.StatsdMaxUDPPacketSize; break;
default: throw new NotSupportedException();
}
return(transportData);
}
/// <summary>
/// Configures the instance.
/// Must be called before any other methods.
/// </summary>
/// <param name="config">The value of the config.</param>
public void Configure(StatsdConfig config)
{
if (_statsdBuilder == null)
{
throw new ObjectDisposedException(nameof(DogStatsdService));
}
if (config == null)
{
throw new ArgumentNullException("config");
}
if (_config != null)
{
throw new InvalidOperationException("Configuration for DogStatsdService already performed");
}
_config = config;
_statsdData = _statsdBuilder.BuildStatsData(config);
_metricsSender = _statsdData.MetricsSender;
}
/// <summary> /// Configures the instance. /// Must be called before any other methods. /// </summary> /// <param name="config">The value of the config.</param> public static void Configure(StatsdConfig config) => _dogStatsdService.Configure(config);
