Taking account of Fabian's propositions

Signed-off-by: Fabrice Scellos <fabrice.scellos@soprasteria.com>

Author: fscellos

integration_tests/it_exemplars_otel_agent/pom.xml

@@ -20,6 +20,13 @@
         <type>pom</type>
         <scope>import</scope>
       </dependency>
+      <dependency>
+        <groupId>io.prometheus</groupId>
+        <artifactId>simpleclient_bom</artifactId>
+        <version>${project.version}</version>
+        <type>pom</type>
+        <scope>import</scope>
+      </dependency>
     </dependencies>
   </dependencyManagement>
 
@@ -33,26 +40,6 @@
       <artifactId>okhttp</artifactId>
       <scope>compile</scope>
     </dependency>
-    <dependency>
-      <groupId>io.prometheus</groupId>
-      <artifactId>simpleclient</artifactId>
-      <version>${project.version}</version>
-    </dependency>
-     <dependency>
-      <groupId>io.prometheus</groupId>
-      <artifactId>simpleclient_tracer_common</artifactId>
-      <version>${project.version}</version>
-    </dependency>
-     <dependency>
-      <groupId>io.prometheus</groupId>
-      <artifactId>simpleclient_tracer_otel</artifactId>
-      <version>${project.version}</version>
-    </dependency>
-      <dependency>
-      <groupId>io.prometheus</groupId>
-      <artifactId>simpleclient_tracer_otel_agent</artifactId>
-      <version>${project.version}</version>
-    </dependency>
     <dependency>
       <groupId>io.prometheus</groupId>
       <artifactId>simpleclient_hotspot</artifactId>

simpleclient_bom/pom.xml

@@ -71,6 +71,11 @@
                 <artifactId>simpleclient_httpserver</artifactId>
                 <version>${project.version}</version>
             </dependency>
+            <dependency>
+                <groupId>io.prometheus</groupId>
+                <artifactId>simpleclient_tracer_common</artifactId>
+                <version>${project.version}</version>
+            </dependency>
             <dependency>
                 <groupId>io.prometheus</groupId>
                 <artifactId>simpleclient_jetty</artifactId>

simpleclient_tracer/simpleclient_tracer_otel/src/main/java/io/prometheus/client/exemplars/tracer/otel/OpenTelemetrySpanContextSupplier.java

@@ -7,14 +7,15 @@
 
 public class OpenTelemetrySpanContextSupplier implements SpanContextSupplier {
 
-  public static boolean isAvailable() {
+	public static boolean isAvailable() {
     try {
       if ("inactive".equalsIgnoreCase(System.getProperties().getProperty("io.prometheus.otelExemplars"))) {
         return false;
       }
       OpenTelemetrySpanContextSupplier test = new OpenTelemetrySpanContextSupplier();
       test.getSpanId();
       test.getTraceId();
+      test.isSampled();
       return true;
     } catch (LinkageError ignored) {
       // NoClassDefFoundError:
@@ -25,20 +26,20 @@ public static boolean isAvailable() {
     }
   }
 
-  @Override
-  public String getTraceId() {
-    String traceId = Span.current().getSpanContext().getTraceId();
-    return TraceId.isValid(traceId) ? traceId : null;
-  }
+	@Override
+	public String getTraceId() {
+		String traceId = Span.current().getSpanContext().getTraceId();
+		return TraceId.isValid(traceId) ? traceId : null;
+	}
 
-  @Override
-  public String getSpanId() {
-    String spanId = Span.current().getSpanContext().getSpanId();
-    return SpanId.isValid(spanId) ? spanId : null;
-  }
+	@Override
+	public String getSpanId() {
+		String spanId = Span.current().getSpanContext().getSpanId();
+		return SpanId.isValid(spanId) ? spanId : null;
+	}
 
-    @Override
-    public boolean isSampled() {
-        return Span.current().getSpanContext().isSampled();
-    }
+	@Override
+	public boolean isSampled() {
+		return Span.current().getSpanContext().isSampled();
+	}
 }

simpleclient_tracer/simpleclient_tracer_otel_agent/src/main/java/io/prometheus/client/exemplars/tracer/otel_agent/OpenTelemetryAgentSpanContextSupplier.java

@@ -20,6 +20,7 @@ public static boolean isAvailable() {
       OpenTelemetryAgentSpanContextSupplier test = new OpenTelemetryAgentSpanContextSupplier();
       test.getSpanId();
       test.getTraceId();
+      test.isSampled();
       return true;
     } catch (LinkageError ignored) {
       // NoClassDefFoundError: