fixup! Capture db.namespace in the db attributes getter

Author: trask

instrumentation/vertx/vertx-redis-client-4.0/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/vertx/v4_0/redis/VertxRedisClientAttributesGetter.java

@@ -9,6 +9,7 @@
 
 import io.opentelemetry.instrumentation.api.incubator.semconv.db.DbClientAttributesGetter;
 import io.opentelemetry.instrumentation.api.incubator.semconv.db.RedisCommandSanitizer;
+import io.opentelemetry.instrumentation.api.internal.SemconvStability;
 import io.opentelemetry.javaagent.bootstrap.internal.AgentCommonConfig;
 import javax.annotation.Nullable;
 
@@ -34,7 +35,10 @@ public String getUser(VertxRedisClientRequest request) {
   @Override
   @Nullable
   public String getDbNamespace(VertxRedisClientRequest request) {
-    return String.valueOf(request.getDatabaseIndex());
+    if (SemconvStability.emitStableDatabaseSemconv()) {
+      return String.valueOf(request.getDatabaseIndex());
+    }
+    return null;
   }
 
   @Deprecated

instrumentation/vertx/vertx-redis-client-4.0/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/vertx/v4_0/redis/VertxRedisClientSingletons.java

@@ -9,7 +9,6 @@
 import io.opentelemetry.context.Context;
 import io.opentelemetry.context.Scope;
 import io.opentelemetry.instrumentation.api.incubator.semconv.db.DbClientAttributesExtractor;
-import io.opentelemetry.instrumentation.api.incubator.semconv.db.DbClientSpanNameExtractor;
 import io.opentelemetry.instrumentation.api.incubator.semconv.net.PeerServiceAttributesExtractor;
 import io.opentelemetry.instrumentation.api.instrumenter.Instrumenter;
 import io.opentelemetry.instrumentation.api.instrumenter.InstrumenterBuilder;
@@ -37,7 +36,7 @@ public final class VertxRedisClientSingletons {
 
   static {
     SpanNameExtractor<VertxRedisClientRequest> spanNameExtractor =
-        DbClientSpanNameExtractor.create(VertxRedisClientAttributesGetter.INSTANCE);
+        VertxRedisClientRequest::getCommand;
 
     InstrumenterBuilder<VertxRedisClientRequest, Void> builder =
         Instrumenter.<VertxRedisClientRequest, Void>builder(