feat(sparkjava-2.3): toolkit-generated sparkjava-2.3 [DO NOT MERGE]

dd-java-agent/instrumentation/spark/sparkjava-2.3/build.gradle

@@ -1,4 +1,3 @@
-
 // building against 2.3 and testing against 2.4 because JettyHandler is available since 2.4 only
 muzzle {
   pass {
@@ -22,3 +21,7 @@ dependencies {
 
   latestDepTestImplementation group: 'com.sparkjava', name: 'spark-core', version: '+'
 }
+
+tasks.withType(Test).configureEach {
+  jvmArgs += ['-Ddd.trace.enabled=true']
+}

dd-java-agent/instrumentation/spark/sparkjava-2.3/src/main/java/datadog/trace/instrumentation/sparkjava/RoutesInstrumentation.java

@@ -3,6 +3,8 @@
 import static datadog.trace.agent.tooling.bytebuddy.matcher.NameMatchers.named;
 import static datadog.trace.bootstrap.instrumentation.api.AgentTracer.activeSpan;
 import static datadog.trace.bootstrap.instrumentation.decorator.http.HttpResourceDecorator.HTTP_RESOURCE_DECORATOR;
+import static datadog.trace.instrumentation.sparkjava.SparkJavaDecorator.DECORATE;
+import static datadog.trace.instrumentation.sparkjava.SparkJavaDecorator.SPARK_JAVA;
 import static net.bytebuddy.matcher.ElementMatchers.isPublic;
 import static net.bytebuddy.matcher.ElementMatchers.returns;
 import static net.bytebuddy.matcher.ElementMatchers.takesArgument;
@@ -11,6 +13,7 @@
 import datadog.trace.agent.tooling.Instrumenter;
 import datadog.trace.agent.tooling.InstrumenterModule;
 import datadog.trace.bootstrap.instrumentation.api.AgentSpan;
+import datadog.trace.bootstrap.instrumentation.api.Tags;
 import net.bytebuddy.asm.Advice;
 import spark.route.HttpMethod;
 import spark.routematch.RouteMatch;
@@ -20,12 +23,12 @@ public class RoutesInstrumentation extends InstrumenterModule.Tracing
     implements Instrumenter.ForSingleType, Instrumenter.HasMethodAdvice {
 
   public RoutesInstrumentation() {
-    super("sparkjava", "sparkjava-2.4");
+    super("sparkjava", "sparkjava-2.3");
   }
 
   @Override
-  public boolean defaultEnabled() {
-    return false;
+  public String[] helperClassNames() {
+    return new String[] {packageName + ".SparkJavaDecorator"};
   }
 
   @Override
@@ -52,6 +55,8 @@ public static void routeMatchEnricher(
       final AgentSpan span = activeSpan();
       if (span != null && routeMatch != null) {
         HTTP_RESOURCE_DECORATOR.withRoute(span, method.name(), routeMatch.getMatchUri());
+        span.setSpanName(DECORATE.spanName());
+        span.setTag(Tags.COMPONENT, SPARK_JAVA);
       }
     }
   }

dd-java-agent/instrumentation/spark/sparkjava-2.3/src/main/java/datadog/trace/instrumentation/sparkjava/SparkJavaDecorator.java

@@ -0,0 +1,31 @@
+package datadog.trace.instrumentation.sparkjava;
+
+import datadog.trace.bootstrap.instrumentation.api.UTF8BytesString;
+import datadog.trace.bootstrap.instrumentation.decorator.BaseDecorator;
+
+public class SparkJavaDecorator extends BaseDecorator {
+
+  public static final SparkJavaDecorator DECORATE = new SparkJavaDecorator();
+
+  public static final CharSequence SPARK_JAVA = UTF8BytesString.create("spark-java");
+  public static final CharSequence SPARK_REQUEST = UTF8BytesString.create("spark.request");
+
+  @Override
+  protected String[] instrumentationNames() {
+    return new String[] {"sparkjava"};
+  }
+
+  @Override
+  protected CharSequence spanType() {
+    return "web";
+  }
+
+  @Override
+  protected CharSequence component() {
+    return SPARK_JAVA;
+  }
+
+  public CharSequence spanName() {
+    return SPARK_REQUEST;
+  }
+}