Rely on DefaultResource's Service.Name for Exporters

examples/AspNetCore/Startup.cs

@@ -75,7 +75,6 @@ public void ConfigureServices(IServiceCollection services)
                         .AddHttpClientInstrumentation()
                         .AddZipkinExporter(zipkinOptions =>
                         {
-                            zipkinOptions.ServiceName = this.Configuration.GetValue<string>("Zipkin:ServiceName");
                             zipkinOptions.Endpoint = new Uri(this.Configuration.GetValue<string>("Zipkin:Endpoint"));
                         }));
                     break;

examples/Console/TestRedis.cs

@@ -45,7 +45,6 @@ internal static object Run(string zipkinUri)
             using var openTelemetry = Sdk.CreateTracerProviderBuilder()
                     .AddZipkinExporter(o =>
                     {
-                        o.ServiceName = "redis-test";
                         o.Endpoint = new Uri(zipkinUri);
                     })
                     .AddRedisInstrumentation(connection, options =>

examples/Console/TestZipkinExporter.cs

@@ -40,7 +40,6 @@ internal static object Run(string zipkinUri)
                     .AddSource("Samples.SampleClient", "Samples.SampleServer")
                     .AddZipkinExporter(o =>
                     {
-                        o.ServiceName = "test-zipkin";
                         o.Endpoint = new Uri(zipkinUri);
                     })
                     .Build();

examples/GrpcService/Startup.cs

@@ -59,7 +59,6 @@ public void ConfigureServices(IServiceCollection services)
                         .AddAspNetCoreInstrumentation()
                         .AddZipkinExporter(zipkinOptions =>
                         {
-                            zipkinOptions.ServiceName = this.Configuration.GetValue<string>("Zipkin:ServiceName");
                             zipkinOptions.Endpoint = new Uri(this.Configuration.GetValue<string>("Zipkin:Endpoint"));
                         }));
                     break;

examples/MicroserviceExample/WebApi/Startup.cs

@@ -46,7 +46,6 @@ public void ConfigureServices(IServiceCollection services)
                 .AddZipkinExporter(b =>
                 {
                     var zipkinHostName = Environment.GetEnvironmentVariable("ZIPKIN_HOSTNAME") ?? "localhost";
-                    b.ServiceName = nameof(WebApi);
                     b.Endpoint = new Uri($"http://{zipkinHostName}:9411/api/v2/spans");
                 }));
         }

examples/MicroserviceExample/WorkerService/Program.cs

@@ -44,7 +44,6 @@ public static IHostBuilder CreateHostBuilder(string[] args) =>
                             .AddZipkinExporter(b =>
                             {
                                 var zipkinHostName = Environment.GetEnvironmentVariable("ZIPKIN_HOSTNAME") ?? "localhost";
-                                b.ServiceName = nameof(WorkerService);
                                 b.Endpoint = new Uri($"http://{zipkinHostName}:9411/api/v2/spans");
                             });
                     });

src/OpenTelemetry.Exporter.Jaeger/JaegerExporter.cs

@@ -17,6 +17,7 @@
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
+using System.Linq;
 using System.Runtime.CompilerServices;
 using OpenTelemetry.Exporter.Jaeger.Implementation;
 using OpenTelemetry.Resources;
@@ -28,8 +29,6 @@ namespace OpenTelemetry.Exporter
 {
     public class JaegerExporter : BaseExporter<Activity>
     {
-        private const string DefaultServiceName = "OpenTelemetry Exporter";
-
         private readonly int maxPayloadSizeInBytes;
         private readonly TProtocolFactory protocolFactory;
         private readonly TTransport clientTransport;
@@ -58,7 +57,9 @@ internal JaegerExporter(JaegerExporterOptions options, TTransport clientTranspor
             this.memoryTransport = new InMemoryTransport(16000);
             this.memoryProtocol = this.protocolFactory.GetProtocol(this.memoryTransport);
 
-            this.Process = new Process(DefaultServiceName, options.ProcessTags);
+            string serviceName = (string)this.ParentProvider.GetDefaultResource().Attributes.Where(
+                    pair => pair.Key == ResourceSemanticConventions.AttributeServiceName).FirstOrDefault().Value;
+            this.Process = new Process(serviceName, options.ProcessTags);
         }
 
         internal Process Process { get; set; }
@@ -130,14 +131,14 @@ internal void SetResourceAndInitializeBatch(Resource resource)
 
             if (serviceName != null)
             {
-                process.ServiceName = serviceNamespace != null
-                    ? serviceNamespace + "." + serviceName
-                    : serviceName;
+                serviceName = string.IsNullOrEmpty(serviceNamespace)
+                    ? serviceName
+                    : serviceNamespace + "." + serviceName;
             }
 
-            if (string.IsNullOrEmpty(process.ServiceName))
+            if (!string.IsNullOrEmpty(serviceName))
             {
-                process.ServiceName = DefaultServiceName;
+                process.ServiceName = serviceName;
             }
 
             this.Process.Message = this.BuildThriftMessage(this.Process).ToArray();

src/OpenTelemetry.Exporter.Zipkin/.publicApi/net452/PublicAPI.Unshipped.txt

@@ -7,8 +7,6 @@ OpenTelemetry.Exporter.ZipkinExporterOptions.Endpoint.get -> System.Uri
 OpenTelemetry.Exporter.ZipkinExporterOptions.Endpoint.set -> void
 OpenTelemetry.Exporter.ZipkinExporterOptions.ExportProcessorType.get -> OpenTelemetry.ExportProcessorType
 OpenTelemetry.Exporter.ZipkinExporterOptions.ExportProcessorType.set -> void
-OpenTelemetry.Exporter.ZipkinExporterOptions.ServiceName.get -> string
-OpenTelemetry.Exporter.ZipkinExporterOptions.ServiceName.set -> void
 OpenTelemetry.Exporter.ZipkinExporterOptions.UseShortTraceIds.get -> bool
 OpenTelemetry.Exporter.ZipkinExporterOptions.UseShortTraceIds.set -> void
 OpenTelemetry.Exporter.ZipkinExporterOptions.ZipkinExporterOptions() -> void

src/OpenTelemetry.Exporter.Zipkin/.publicApi/net461/PublicAPI.Unshipped.txt

@@ -9,8 +9,6 @@ OpenTelemetry.Exporter.ZipkinExporterOptions.ExportProcessorType.get -> OpenTele
 OpenTelemetry.Exporter.ZipkinExporterOptions.ExportProcessorType.set -> void
 OpenTelemetry.Exporter.ZipkinExporterOptions.MaxPayloadSizeInBytes.get -> int?
 OpenTelemetry.Exporter.ZipkinExporterOptions.MaxPayloadSizeInBytes.set -> void
-OpenTelemetry.Exporter.ZipkinExporterOptions.ServiceName.get -> string
-OpenTelemetry.Exporter.ZipkinExporterOptions.ServiceName.set -> void
 OpenTelemetry.Exporter.ZipkinExporterOptions.UseShortTraceIds.get -> bool
 OpenTelemetry.Exporter.ZipkinExporterOptions.UseShortTraceIds.set -> void
 OpenTelemetry.Exporter.ZipkinExporterOptions.ZipkinExporterOptions() -> void

src/OpenTelemetry.Exporter.Zipkin/.publicApi/netstandard2.0/PublicAPI.Unshipped.txt

@@ -9,8 +9,6 @@ OpenTelemetry.Exporter.ZipkinExporterOptions.ExportProcessorType.get -> OpenTele
 OpenTelemetry.Exporter.ZipkinExporterOptions.ExportProcessorType.set -> void
 OpenTelemetry.Exporter.ZipkinExporterOptions.MaxPayloadSizeInBytes.get -> int?
 OpenTelemetry.Exporter.ZipkinExporterOptions.MaxPayloadSizeInBytes.set -> void
-OpenTelemetry.Exporter.ZipkinExporterOptions.ServiceName.get -> string
-OpenTelemetry.Exporter.ZipkinExporterOptions.ServiceName.set -> void
 OpenTelemetry.Exporter.ZipkinExporterOptions.UseShortTraceIds.get -> bool
 OpenTelemetry.Exporter.ZipkinExporterOptions.UseShortTraceIds.set -> void
 OpenTelemetry.Exporter.ZipkinExporterOptions.ZipkinExporterOptions() -> void

src/OpenTelemetry.Exporter.Zipkin/ZipkinExporter.cs

@@ -18,6 +18,7 @@
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.IO;
+using System.Linq;
 using System.Net;
 using System.Net.Http;
 using System.Net.Http.Headers;
@@ -119,7 +120,8 @@ internal void SetLocalEndpointFromResource(Resource resource)
 
             if (string.IsNullOrEmpty(serviceName))
             {
-                serviceName = this.options.ServiceName;
+                serviceName = (string)this.ParentProvider.GetDefaultResource().Attributes.Where(
+                    pair => pair.Key == ResourceSemanticConventions.AttributeServiceName).FirstOrDefault().Value;
             }
 
             this.LocalEndpoint = new ZipkinEndpoint(

src/OpenTelemetry.Exporter.Zipkin/ZipkinExporterOptions.cs

@@ -16,6 +16,8 @@
 
 using System;
 using System.Diagnostics;
+using System.Linq;
+using OpenTelemetry.Resources;
 
 namespace OpenTelemetry.Exporter
 {
@@ -24,18 +26,10 @@ namespace OpenTelemetry.Exporter
     /// </summary>
     public sealed class ZipkinExporterOptions
     {
-        internal const string DefaultServiceName = "OpenTelemetry Exporter";
-
 #if !NET452
         internal const int DefaultMaxPayloadSizeInBytes = 4096;
 #endif
 
-        /// <summary>
-        /// Gets or sets the name of the service reporting telemetry. If the `Resource` associated with the telemetry
-        /// has "service.name" defined, then it'll be preferred over this option.
-        /// </summary>
-        public string ServiceName { get; set; } = DefaultServiceName;
-
         /// <summary>
         /// Gets or sets Zipkin endpoint address. See https://zipkin.io/zipkin-api/#/default/post_spans.
         /// Typically https://zipkin-server-name:9411/api/v2/spans.

src/OpenTelemetry/.publicApi/net452/PublicAPI.Unshipped.txt

@@ -119,6 +119,7 @@ override OpenTelemetry.Trace.TraceIdRatioBasedSampler.ShouldSample(in OpenTeleme
 abstract OpenTelemetry.BaseExportProcessor<T>.OnExport(T data) -> void
 override sealed OpenTelemetry.BaseExportProcessor<T>.OnStart(T data) -> void
 readonly OpenTelemetry.BaseExportProcessor<T>.exporter -> OpenTelemetry.BaseExporter<T>
+static OpenTelemetry.ProviderExtensions.GetDefaultResource(this OpenTelemetry.BaseProvider baseProvider) -> OpenTelemetry.Resources.Resource
 static OpenTelemetry.ProviderExtensions.GetResource(this OpenTelemetry.BaseProvider baseProvider) -> OpenTelemetry.Resources.Resource
 static OpenTelemetry.Resources.ResourceBuilderExtensions.AddEnvironmentVariableDetector(this OpenTelemetry.Resources.ResourceBuilder resourceBuilder) -> OpenTelemetry.Resources.ResourceBuilder
 static OpenTelemetry.Resources.Resource.Empty.get -> OpenTelemetry.Resources.Resource

src/OpenTelemetry/.publicApi/net46/PublicAPI.Unshipped.txt

@@ -119,6 +119,7 @@ override OpenTelemetry.Trace.TraceIdRatioBasedSampler.ShouldSample(in OpenTeleme
 abstract OpenTelemetry.BaseExportProcessor<T>.OnExport(T data) -> void
 override sealed OpenTelemetry.BaseExportProcessor<T>.OnStart(T data) -> void
 readonly OpenTelemetry.BaseExportProcessor<T>.exporter -> OpenTelemetry.BaseExporter<T>
+static OpenTelemetry.ProviderExtensions.GetDefaultResource(this OpenTelemetry.BaseProvider baseProvider) -> OpenTelemetry.Resources.Resource
 static OpenTelemetry.ProviderExtensions.GetResource(this OpenTelemetry.BaseProvider baseProvider) -> OpenTelemetry.Resources.Resource
 static OpenTelemetry.Resources.ResourceBuilderExtensions.AddEnvironmentVariableDetector(this OpenTelemetry.Resources.ResourceBuilder resourceBuilder) -> OpenTelemetry.Resources.ResourceBuilder
 static OpenTelemetry.Resources.Resource.Empty.get -> OpenTelemetry.Resources.Resource

src/OpenTelemetry/.publicApi/net461/PublicAPI.Unshipped.txt

@@ -143,6 +143,7 @@ abstract OpenTelemetry.BaseExportProcessor<T>.OnExport(T data) -> void
 override sealed OpenTelemetry.BaseExportProcessor<T>.OnStart(T data) -> void
 readonly OpenTelemetry.BaseExportProcessor<T>.exporter -> OpenTelemetry.BaseExporter<T>
 static Microsoft.Extensions.Logging.OpenTelemetryLoggingExtensions.AddOpenTelemetry(this Microsoft.Extensions.Logging.ILoggingBuilder builder, System.Action<OpenTelemetry.Logs.OpenTelemetryLoggerOptions> configure = null) -> Microsoft.Extensions.Logging.ILoggingBuilder
+static OpenTelemetry.ProviderExtensions.GetDefaultResource(this OpenTelemetry.BaseProvider baseProvider) -> OpenTelemetry.Resources.Resource
 static OpenTelemetry.ProviderExtensions.GetResource(this OpenTelemetry.BaseProvider baseProvider) -> OpenTelemetry.Resources.Resource
 static OpenTelemetry.Resources.ResourceBuilderExtensions.AddEnvironmentVariableDetector(this OpenTelemetry.Resources.ResourceBuilder resourceBuilder) -> OpenTelemetry.Resources.ResourceBuilder
 static OpenTelemetry.Resources.Resource.Empty.get -> OpenTelemetry.Resources.Resource

src/OpenTelemetry/.publicApi/netstandard2.0/PublicAPI.Unshipped.txt

@@ -143,6 +143,7 @@ abstract OpenTelemetry.BaseExportProcessor<T>.OnExport(T data) -> void
 override sealed OpenTelemetry.BaseExportProcessor<T>.OnStart(T data) -> void
 readonly OpenTelemetry.BaseExportProcessor<T>.exporter -> OpenTelemetry.BaseExporter<T>
 static Microsoft.Extensions.Logging.OpenTelemetryLoggingExtensions.AddOpenTelemetry(this Microsoft.Extensions.Logging.ILoggingBuilder builder, System.Action<OpenTelemetry.Logs.OpenTelemetryLoggerOptions> configure = null) -> Microsoft.Extensions.Logging.ILoggingBuilder
+static OpenTelemetry.ProviderExtensions.GetDefaultResource(this OpenTelemetry.BaseProvider baseProvider) -> OpenTelemetry.Resources.Resource
 static OpenTelemetry.ProviderExtensions.GetResource(this OpenTelemetry.BaseProvider baseProvider) -> OpenTelemetry.Resources.Resource
 static OpenTelemetry.Resources.ResourceBuilderExtensions.AddEnvironmentVariableDetector(this OpenTelemetry.Resources.ResourceBuilder resourceBuilder) -> OpenTelemetry.Resources.ResourceBuilder
 static OpenTelemetry.Resources.Resource.Empty.get -> OpenTelemetry.Resources.Resource

src/OpenTelemetry/CHANGELOG.md

@@ -4,6 +4,9 @@
 
 * Default `Resource` will now contain service.name instead of Telemetry SDK.
   [#1744](https://github.com/open-telemetry/opentelemetry-dotnet/pull/1744)
+* Exporters fall back to the default `Resource`'s `service.name` value instead
+  of their own presets. Providers extended to access the default `Resource`.
+  [#1768](https://github.com/open-telemetry/opentelemetry-dotnet/pull/1768)
 
 ## 1.0.0-rc2
 

src/OpenTelemetry/ProviderExtensions.cs

@@ -38,5 +38,15 @@ public static Resource GetResource(this BaseProvider baseProvider)
 
             return Resource.Empty;
         }
+
+        /// <summary>
+        /// Gets the <see cref="Resource"/> associated with the <see cref="BaseProvider"/>.
+        /// </summary>
+        /// <param name="baseProvider"><see cref="BaseProvider"/>.</param>
+        /// <returns><see cref="Resource"/>if found otherwise <see cref="Resource.Empty"/>.</returns>
+        public static Resource GetDefaultResource(this BaseProvider baseProvider)
+        {
+            return ResourceBuilder.CreateDefault().Build();
+        }
     }
 }

test/OpenTelemetry.Exporter.Jaeger.Tests/JaegerExporterTests.cs

@@ -27,8 +27,6 @@ namespace OpenTelemetry.Exporter.Jaeger.Tests
 {
     public class JaegerExporterTests
     {
-        private const string DefaultServiceName = "OpenTelemetry Exporter";
-
         [Fact]
         public void JaegerExporter_BadArgs()
         {

test/OpenTelemetry.Exporter.Zipkin.Tests/ZipkinExporterTests.cs

@@ -105,7 +105,6 @@ public void SuppresssesInstrumentation()
 
             var exporterOptions = new ZipkinExporterOptions
             {
-                ServiceName = "test-zipkin",
                 Endpoint = new Uri($"http://{this.testServerHost}:{this.testServerPort}/api/v2/spans?requestId={requestId}"),
             };
             var zipkinExporter = new ZipkinExporter(exporterOptions);
@@ -171,8 +170,9 @@ public void IntegrationTest(
                     UseShortTraceIds = useShortTraceIds,
                 });
 
-            var serviceName = ZipkinExporterOptions.DefaultServiceName;
-            var resoureTags = string.Empty;
+            var serviceName = (string)exporter.ParentProvider.GetDefaultResource().Attributes
+                .Where(pair => pair.Key == ResourceSemanticConventions.AttributeServiceName).FirstOrDefault().Value;
+            var resourceTags = string.Empty;
             var activity = CreateTestActivity(isRootSpan: isRootSpan, status: status);
             if (useTestResource)
             {
@@ -237,7 +237,7 @@ public void IntegrationTest(
             }
 
             Assert.Equal(
-                $@"[{{""traceId"":""{traceId}"",""name"":""Name"",{parentId}""id"":""{ZipkinActivityConversionExtensions.EncodeSpanId(context.SpanId)}"",""kind"":""CLIENT"",""timestamp"":{timestamp},""duration"":60000000,""localEndpoint"":{{""serviceName"":""{serviceName}""{ipInformation}}},""remoteEndpoint"":{{""serviceName"":""http://localhost:44312/""}},""annotations"":[{{""timestamp"":{eventTimestamp},""value"":""Event1""}},{{""timestamp"":{eventTimestamp},""value"":""Event2""}}],""tags"":{{{resoureTags}""stringKey"":""value"",""longKey"":""1"",""longKey2"":""1"",""doubleKey"":""1"",""doubleKey2"":""1"",""longArrayKey"":""1,2"",""boolKey"":""true"",""boolArrayKey"":""true,false"",""http.host"":""http://localhost:44312/"",{statusTag}""otel.library.name"":""CreateTestActivity"",""peer.service"":""http://localhost:44312/""{errorTag}}}}}]",
+                $@"[{{""traceId"":""{traceId}"",""name"":""Name"",{parentId}""id"":""{ZipkinActivityConversionExtensions.EncodeSpanId(context.SpanId)}"",""kind"":""CLIENT"",""timestamp"":{timestamp},""duration"":60000000,""localEndpoint"":{{""serviceName"":""{serviceName}""{ipInformation}}},""remoteEndpoint"":{{""serviceName"":""http://localhost:44312/""}},""annotations"":[{{""timestamp"":{eventTimestamp},""value"":""Event1""}},{{""timestamp"":{eventTimestamp},""value"":""Event2""}}],""tags"":{{{resourceTags}""stringKey"":""value"",""longKey"":""1"",""longKey2"":""1"",""doubleKey"":""1"",""doubleKey2"":""1"",""longArrayKey"":""1,2"",""boolKey"":""true"",""boolArrayKey"":""true,false"",""http.host"":""http://localhost:44312/"",{statusTag}""otel.library.name"":""CreateTestActivity"",""peer.service"":""http://localhost:44312/""{errorTag}}}}}]",
                 Responses[requestId]);
         }