maven component provider

Author: zeitlinger

maven-extension/build.gradle.kts

@@ -16,6 +16,7 @@ dependencies {
   compileOnly("javax.inject:javax.inject:1")
 
   implementation("io.opentelemetry:opentelemetry-api")
+  compileOnly("io.opentelemetry:opentelemetry-api-incubator")
   implementation("io.opentelemetry:opentelemetry-sdk")
   implementation("io.opentelemetry:opentelemetry-sdk-trace")
   implementation("io.opentelemetry:opentelemetry-sdk-metrics")
@@ -32,6 +33,7 @@ dependencies {
   compileOnly("org.apache.maven:maven-core:3.5.0") // do not auto-update, support older mvn versions
   compileOnly("org.slf4j:slf4j-api")
 
+  testImplementation("io.opentelemetry:opentelemetry-api-incubator")
   testImplementation("org.apache.maven:maven-core:3.5.0")
   testImplementation("org.slf4j:slf4j-simple")
 }

maven-extension/src/main/java/io/opentelemetry/maven/resources/MavenResourceDetector.java

@@ -0,0 +1,28 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package io.opentelemetry.maven.resources;
+
+import io.opentelemetry.api.incubator.config.DeclarativeConfigProperties;
+import io.opentelemetry.sdk.autoconfigure.spi.internal.ComponentProvider;
+import io.opentelemetry.sdk.resources.Resource;
+
+public class MavenResourceDetector implements ComponentProvider<Resource> {
+
+  @Override
+  public Class<Resource> getType() {
+    return Resource.class;
+  }
+
+  @Override
+  public String getName() {
+    return "maven";
+  }
+
+  @Override
+  public Resource create(DeclarativeConfigProperties config) {
+    return MavenResourceProvider.create();
+  }
+}

maven-extension/src/main/java/io/opentelemetry/maven/resources/MavenResourceProvider.java

@@ -23,6 +23,10 @@ public class MavenResourceProvider implements ResourceProvider {
 
   @Override
   public Resource createResource(ConfigProperties config) {
+    return create();
+  }
+
+  static Resource create() {
     return Resource.builder()
         .put(ServiceAttributes.SERVICE_NAME, MavenOtelSemanticAttributes.SERVICE_NAME_VALUE)
         .put(ServiceAttributes.SERVICE_VERSION, getMavenRuntimeVersion())

maven-extension/src/main/resources/META-INF/services/io.opentelemetry.sdk.autoconfigure.spi.internal.ComponentProvider

@@ -0,0 +1 @@
+io.opentelemetry.maven.resources.MavenResourceDetector

maven-extension/src/test/java/io/opentelemetry/maven/resources/ResourceComponentProviderTest.java

@@ -0,0 +1,20 @@
+package io.opentelemetry.maven.resources;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import io.opentelemetry.sdk.autoconfigure.internal.SpiHelper;
+import io.opentelemetry.sdk.autoconfigure.spi.internal.ComponentProvider;
+import java.util.List;
+import org.junit.jupiter.api.Test;
+
+public class ResourceComponentProviderTest {
+
+  @Test
+  @SuppressWarnings("rawtypes")
+  void providerIsLoaded() {
+    List<ComponentProvider> providers = SpiHelper.create(
+            ResourceComponentProviderTest.class.getClassLoader())
+        .load(ComponentProvider.class);
+    assertThat(providers).extracting(ComponentProvider::getName).contains("maven");
+  }
+}