Add resource attributes (#298)

Author: shashank11p

otel-extensions/src/main/java/org/hypertrace/agent/otel/extensions/HypertraceResourceProvider.java

@@ -25,10 +25,15 @@
 import io.opentelemetry.semconv.resource.attributes.ResourceAttributes;
 import org.hypertrace.agent.config.Config.AgentConfig;
 import org.hypertrace.agent.core.config.HypertraceConfig;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 @AutoService(ResourceProvider.class)
 public class HypertraceResourceProvider implements ResourceProvider {
 
+  private static final Logger log =
+      LoggerFactory.getLogger(HypertraceResourceProvider.class.getName());
+
   private final CgroupsReader cgroupsReader = new CgroupsReader();
   private final AgentConfig agentConfig = HypertraceConfig.get();
 
@@ -40,6 +45,23 @@ public Resource createResource(ConfigProperties config) {
       builder.put(ResourceAttributes.CONTAINER_ID, containerId);
     }
     builder.put(ResourceAttributes.SERVICE_NAME, agentConfig.getServiceName().getValue());
+    builder.put(ResourceAttributes.TELEMETRY_SDK_NAME, "hypertrace");
+    builder.put(ResourceAttributes.TELEMETRY_SDK_LANGUAGE, "java");
+    String agentVersion = getAgentVersion();
+    builder.put(ResourceAttributes.TELEMETRY_SDK_VERSION, agentVersion);
+    builder.put(ResourceAttributes.TELEMETRY_AUTO_VERSION, agentVersion);
     return Resource.create(builder.build());
   }
+
+  private String getAgentVersion() {
+    String agentVersion = "";
+    try {
+      Class<?> hypertraceAgentClass =
+          Class.forName("org.hypertrace.agent.instrument.HypertraceAgent", true, null);
+      agentVersion = hypertraceAgentClass.getPackage().getImplementationVersion();
+    } catch (ClassNotFoundException e) {
+      log.warn("Could not load HypertraceAgent class");
+    }
+    return agentVersion;
+  }
 }