Implements parsing of http route and uses it by default for span name

Author: Adrian Cole

instrumentation/benchmarks/src/main/java/brave/jersey/server/FakeExtendedUriInfo.java

@@ -0,0 +1,139 @@
+package brave.jersey.server;
+
+import java.net.URI;
+import java.util.List;
+import java.util.regex.MatchResult;
+import javax.ws.rs.core.MultivaluedMap;
+import javax.ws.rs.core.PathSegment;
+import javax.ws.rs.core.UriBuilder;
+import org.glassfish.jersey.server.ExtendedUriInfo;
+import org.glassfish.jersey.server.model.Resource;
+import org.glassfish.jersey.server.model.ResourceMethod;
+import org.glassfish.jersey.server.model.RuntimeResource;
+import org.glassfish.jersey.uri.UriTemplate;
+
+class FakeExtendedUriInfo implements ExtendedUriInfo {
+  final URI baseURI;
+  final List<UriTemplate> matchedTemplates;
+
+  FakeExtendedUriInfo(URI baseURI, List<UriTemplate> matchedTemplates) {
+    this.baseURI = baseURI;
+    this.matchedTemplates = matchedTemplates;
+  }
+
+  @Override public Throwable getMappedThrowable() {
+    return null;
+  }
+
+  @Override public List<MatchResult> getMatchedResults() {
+    return null;
+  }
+
+  @Override public List<UriTemplate> getMatchedTemplates() {
+    return matchedTemplates;
+  }
+
+  @Override public List<PathSegment> getPathSegments(String name) {
+    return null;
+  }
+
+  @Override public List<PathSegment> getPathSegments(String name, boolean decode) {
+    return null;
+  }
+
+  @Override public List<RuntimeResource> getMatchedRuntimeResources() {
+    return null;
+  }
+
+  @Override public ResourceMethod getMatchedResourceMethod() {
+    return null;
+  }
+
+  @Override public Resource getMatchedModelResource() {
+    return null;
+  }
+
+  @Override public List<ResourceMethod> getMatchedResourceLocators() {
+    return null;
+  }
+
+  @Override public List<Resource> getLocatorSubResources() {
+    return null;
+  }
+
+  @Override public String getPath() {
+    return null;
+  }
+
+  @Override public String getPath(boolean decode) {
+    return null;
+  }
+
+  @Override public List<PathSegment> getPathSegments() {
+    return null;
+  }
+
+  @Override public List<PathSegment> getPathSegments(boolean decode) {
+    return null;
+  }
+
+  @Override public URI getRequestUri() {
+    return null;
+  }
+
+  @Override public UriBuilder getRequestUriBuilder() {
+    return null;
+  }
+
+  @Override public URI getAbsolutePath() {
+    return null;
+  }
+
+  @Override public UriBuilder getAbsolutePathBuilder() {
+    return null;
+  }
+
+  @Override public URI getBaseUri() {
+    return baseURI;
+  }
+
+  @Override public UriBuilder getBaseUriBuilder() {
+    return null;
+  }
+
+  @Override public MultivaluedMap<String, String> getPathParameters() {
+    return null;
+  }
+
+  @Override public MultivaluedMap<String, String> getPathParameters(boolean decode) {
+    return null;
+  }
+
+  @Override public MultivaluedMap<String, String> getQueryParameters() {
+    return null;
+  }
+
+  @Override public MultivaluedMap<String, String> getQueryParameters(boolean decode) {
+    return null;
+  }
+
+  @Override public List<String> getMatchedURIs() {
+    return null;
+  }
+
+  @Override public List<String> getMatchedURIs(boolean decode) {
+    return null;
+  }
+
+  @Override public List<Object> getMatchedResources() {
+    return null;
+  }
+
+  @Override public URI resolve(URI uri) {
+    return null;
+  }
+
+  @Override public URI relativize(URI uri) {
+    return null;
+  }
+}

instrumentation/benchmarks/src/main/java/brave/jersey/server/TracingApplicationEventListenerAdapterBenchmarks.java

@@ -0,0 +1,96 @@
+/**
+ * Copyright 2015-2016 The OpenZipkin Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the License
+ * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package brave.jersey.server;
+
+import java.net.URI;
+import java.util.Arrays;
+import java.util.concurrent.TimeUnit;
+import org.glassfish.jersey.internal.MapPropertiesDelegate;
+import org.glassfish.jersey.server.ContainerRequest;
+import org.glassfish.jersey.server.ContainerResponse;
+import org.glassfish.jersey.server.ExtendedUriInfo;
+import org.glassfish.jersey.uri.PathTemplate;
+import org.jboss.resteasy.core.ServerResponse;
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.annotations.BenchmarkMode;
+import org.openjdk.jmh.annotations.Fork;
+import org.openjdk.jmh.annotations.Measurement;
+import org.openjdk.jmh.annotations.Mode;
+import org.openjdk.jmh.annotations.OutputTimeUnit;
+import org.openjdk.jmh.annotations.Scope;
+import org.openjdk.jmh.annotations.State;
+import org.openjdk.jmh.annotations.Warmup;
+import org.openjdk.jmh.runner.Runner;
+import org.openjdk.jmh.runner.RunnerException;
+import org.openjdk.jmh.runner.options.Options;
+import org.openjdk.jmh.runner.options.OptionsBuilder;
+
+@Measurement(iterations = 5, time = 1)
+@Warmup(iterations = 10, time = 1)
+@Fork(3)
+@BenchmarkMode(Mode.Throughput)
+@OutputTimeUnit(TimeUnit.MICROSECONDS)
+@State(Scope.Thread)
+public class TracingApplicationEventListenerAdapterBenchmarks {
+  FakeExtendedUriInfo uriInfo = new FakeExtendedUriInfo(URI.create("/"),
+      Arrays.asList(
+          new PathTemplate("/"),
+          new PathTemplate("/items/{itemId}")
+      )
+  );
+  ContainerResponse response = new ContainerResponse(
+      new ContainerRequest(
+          URI.create("/"), null, null, null, new MapPropertiesDelegate()
+      ) {
+        @Override public ExtendedUriInfo getUriInfo() {
+          return uriInfo;
+        }
+      }, new ServerResponse());
+
+  FakeExtendedUriInfo nestedUriInfo = new FakeExtendedUriInfo(URI.create("/"),
+      Arrays.asList(
+          new PathTemplate("/"),
+          new PathTemplate("/items/{itemId}"),
+          new PathTemplate("/"),
+          new PathTemplate("/nested")
+      )
+  );
+  ContainerResponse nestedResponse = new ContainerResponse(
+      new ContainerRequest(
+          URI.create("/"), null, null, null, new MapPropertiesDelegate()
+      ) {
+        @Override public ExtendedUriInfo getUriInfo() {
+          return nestedUriInfo;
+        }
+      }, new ServerResponse());
+
+  TracingApplicationEventListener.Adapter adapter = new TracingApplicationEventListener.Adapter();
+
+  @Benchmark public String parseRoute() {
+    return adapter.route(response);
+  }
+
+  @Benchmark public String parseRoute_nested() {
+    return adapter.route(nestedResponse);
+  }
+
+  // Convenience main entry-point
+  public static void main(String[] args) throws RunnerException {
+    Options opt = new OptionsBuilder()
+        .include(".*" + TracingApplicationEventListenerAdapterBenchmarks.class.getSimpleName())
+        .build();
+
+    new Runner(opt).run();
+  }
+}