Simple jetty perf test

dd-java-agent-perftests/jetty-perftest/jetty-perftest.gradle

@@ -0,0 +1,13 @@
+dependencies {
+  compile project(':dd-java-agent-perftests')
+  compile group: 'org.eclipse.jetty', name: 'jetty-server', version: '9.4.1.v20170120'
+  compile group: 'org.eclipse.jetty', name: 'jetty-servlet', version: '9.4.1.v20170120'
+}
+
+jar {
+  manifest {
+    attributes(
+      "Main-Class": "dd.perftest.jetty.JettyPerftest"
+    )
+  }
+}

dd-java-agent-perftests/jetty-perftest/src/main/java/dd/perftest/jetty/JettyPerftest.java

@@ -0,0 +1,58 @@
+package dd.perftest.jetty;
+
+import dd.perftest.Worker;
+import java.io.IOException;
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import org.eclipse.jetty.server.Server;
+import org.eclipse.jetty.servlet.ServletContextHandler;
+
+public class JettyPerftest {
+  private static final int PORT = 8080;
+  private static final String PATH = "/work";
+  private static final Server jettyServer = new Server(PORT);
+  private static final ServletContextHandler servletContext = new ServletContextHandler();
+
+  public static void main(String[] args) throws Exception {
+    servletContext.addServlet(PerfServlet.class, PATH);
+    jettyServer.setHandler(servletContext);
+    jettyServer.start();
+
+    Runtime.getRuntime()
+        .addShutdownHook(
+            new Thread() {
+              public void run() {
+                try {
+                  jettyServer.stop();
+                  jettyServer.destroy();
+                } catch (Exception e) {
+                  throw new IllegalStateException(e);
+                }
+              }
+            });
+  }
+
+  @WebServlet
+  @SuppressWarnings("serial")
+  public static class PerfServlet extends HttpServlet {
+    @Override
+    protected void doGet(HttpServletRequest request, HttpServletResponse response)
+        throws ServletException, IOException {
+      if (request.getParameter("error") != null) {
+        throw new RuntimeException("some sync error");
+      }
+      final String workVal = request.getParameter("workTimeMS");
+      long workTimeMS = 0l;
+      if (null != workVal) {
+        workTimeMS = Long.parseLong(workVal);
+      }
+      if (workTimeMS > 0) {
+        Worker.doWork(workTimeMS);
+      }
+      response.getWriter().print("Did " + workTimeMS + "ms of work.");
+    }
+  }
+}

settings.gradle

@@ -7,6 +7,7 @@ include ':dd-java-agent:testing'
 include ':dd-java-agent:tooling'
 include ':dd-java-agent-ittests'
 include ':dd-java-agent-perftests'
+include ':dd-java-agent-perftests:jetty-perftest'
 include ':dd-trace-examples:dropwizard-mongo-client'
 include ':dd-trace-examples:spring-boot-jdbc'
 include ':dd-trace-examples:rest-spark'