updates to README, tests and OTLP example

Examples/OTLP Exporter/docker-compose.yaml

@@ -2,7 +2,8 @@ version: "3"
 services:
   # Collector
   collector:
-    image: otel/opentelemetry-collector:0.137.0@sha256:089a8b3c81d328a190f6f0740b30c15b0c7f1f2cfeadeb810355574d5158b31c
+    platform: linux/amd64
+    image: otel/opentelemetry-collector:0.137.0
 #    The latest image of the otel-collector may not work, so specifying the version that works with this release
 #    image: otel/opentelemetry-collector:latest
     command: ["--config=/conf/collector-config.yaml"]
@@ -17,14 +18,16 @@ services:
 
   # Zipkin
   zipkin-all-in-one:
-    image: openzipkin/zipkin:latest@sha256:bb570eb45c2994eaf32da783cc098b3d51d1095b73ec92919863d73d0a9eaafb
+    platform: linux/amd64
+    image: openzipkin/zipkin:latest
     ports:
       - "9411:9411"
 
   # Prometheus
   prometheus:
+    platform: linux/amd64
     container_name: prometheus
-    image: prom/prometheus:latest@sha256:ff7e389acbe064a4823212a500393d40a28a8f362e4b05cbf6742a9a3ef736b2
+    image: prom/prometheus:latest
     volumes:
       - ./prometheus.yaml:/etc/prometheus/prometheus.yml
     ports:

README.md

@@ -74,17 +74,17 @@ Metrics is implemented using an outdated spec, is fully functional but will chan
 
 #### Traces
 
-* Exporters: Stdout, Jaeger, Zipkin, Datadog and OpenTelemetry (OTLP) collector
+* Exporters: Stdout, Jaeger, Zipkin and OpenTelemetry (OTLP) grpc/http
 * Importers: OpenTracingShim
 
 #### Metrics
 
-* Exporters: Prometheus, Datadog, and OpenTelemetry (OTLP) collector
+* Exporters: Prometheus and OpenTelemetry (OTLP) grpc/http
 * Importers: SwiftMetricsShim
 
 #### Logs
 
-* Exporters: OpenTelemetry (OTLP) collector
+* Exporters: OpenTelemetry (OTLP) grpc/http
 
 > **_NOTE:_** OTLP exporters are supported both in GRPC and HTTP, only GRPC is production ready, HTTP is still experimental
 
@@ -104,7 +104,6 @@ In addition to the specified OpenTelemetry exporters, some third-party exporters
 
 The package includes some example projects with basic functionality:
 
-* `Datadog Sample` -  Shows the Datadog exporter used with a Simple Exporter, showing how to configure for sending.
 * `Logging Tracer` -  Simple api implementation of a Tracer that logs every api call
 * `Network Tracer` -  Shows how to use the `URLSessionInstrumentation` instrumentation in your application
 * `Simple Exporter` - Shows the Jaeger an Stdout exporters in action using a MultiSpanExporter. Can be easily modified for other exporters

Tests/ExportersTests/OpenTelemetryProtocol/OtlpHttpTraceExporterTests.swift

@@ -63,7 +63,6 @@ class OtlpHttpTraceExporterTests: XCTestCase {
   }
 
   // This is not a thorough test of HTTPClient, but just enough to keep code coverage happy.
-  // There is a more complete test as part of the DataDog exporter test
   func testHttpClient() {
     // Clear any previous requests
     testServer.clearReceivedRequests()

Tests/ExportersTests/PersistenceExporter/Helpers/TestsDirectory.swift

@@ -24,7 +24,7 @@ import XCTest
   }
 
   init() {
-    let subdirectoryName = "com.datadoghq.ios-sdk-tests-\(UUID().uuidString)"
+    let subdirectoryName = "io.opentelemetry.ios-sdk-tests-\(UUID().uuidString)"
     let osTemporaryDirectoryURL = URL(fileURLWithPath: NSTemporaryDirectory(), isDirectory: true).appendingPathComponent(subdirectoryName, isDirectory: true)
     directory = Directory(url: osTemporaryDirectoryURL)
   }