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author | Diego <diegolparra@gmail.com> | 2016-12-13 13:06:29 -0300 |
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committer | Diego <diegolparra@gmail.com> | 2016-12-13 13:06:29 -0300 |
commit | a74379942b2c672c9ba507093f27ead5693c1240 (patch) | |
tree | 1a22f1ae9080e4ec7496f0b5536107b35a5acd68 /kamon-examples/kamon-scalatra-example/src/main/scala/kamon/example | |
parent | ee7e2218f869eeea8be00441c82b5e6e8f4d99eb (diff) | |
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Diffstat (limited to 'kamon-examples/kamon-scalatra-example/src/main/scala/kamon/example')
3 files changed, 138 insertions, 0 deletions
diff --git a/kamon-examples/kamon-scalatra-example/src/main/scala/kamon/example/EmbeddedServer.scala b/kamon-examples/kamon-scalatra-example/src/main/scala/kamon/example/EmbeddedServer.scala new file mode 100644 index 00000000..473e2b17 --- /dev/null +++ b/kamon-examples/kamon-scalatra-example/src/main/scala/kamon/example/EmbeddedServer.scala @@ -0,0 +1,39 @@ +/* + * ========================================================================================= + * Copyright © 2013-2015 the kamon project <http://kamon.io/> + * + * 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 kamon.example + +import org.eclipse.jetty.server.Server +import org.eclipse.jetty.webapp.WebAppContext + +object EmbeddedServer extends App { + val server = new Server(8080) + val context: WebAppContext = new WebAppContext() + + context.setServer(server) + context.setContextPath("/") + context.setWar("src/webapp") + server.setHandler(context) + + try { + server.start() + server.join() + } catch { + case e: Exception => + e.printStackTrace() + System.exit(1) + } +} diff --git a/kamon-examples/kamon-scalatra-example/src/main/scala/kamon/example/KamonServlet.scala b/kamon-examples/kamon-scalatra-example/src/main/scala/kamon/example/KamonServlet.scala new file mode 100644 index 00000000..4784e22d --- /dev/null +++ b/kamon-examples/kamon-scalatra-example/src/main/scala/kamon/example/KamonServlet.scala @@ -0,0 +1,65 @@ +/* + * ========================================================================================= + * Copyright © 2013-2015 the kamon project <http://kamon.io/> + * + * 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 kamon.example + +import dispatch._ +import org.scalatra.{FutureSupport, ScalatraServlet} + +import scala.concurrent.{ExecutionContext, Future, Promise} +import scala.util.{Failure, Random, Success, Try} + +class KamonServlet extends ScalatraServlet with KamonSupport with FutureSupport { + + implicit val executor: ExecutionContext = ExecutionContext.Implicits.global + + get("/async") { + traceFuture("retrievePage") { + Future { + HttpClient.retrievePage() + } + } + } + + get("/time") { + time("time") { + Thread.sleep(Random.nextInt(100)) + } + } + + get("/minMaxCounter") { + minMaxCounter("minMaxCounter").increment() + } + + get("/counter") { + counter("counter").increment() + } + + get("/histogram") { + histogram("histogram").record(Random.nextInt(10)) + } +} + +object HttpClient { + def retrievePage()(implicit ctx: ExecutionContext): Future[String] = { + val prom = Promise[String]() + dispatch.Http(url("http://slashdot.org/") OK as.String) onComplete { + case Success(content) => prom.complete(Try(content)) + case Failure(exception) => println(exception) + } + prom.future + } +} diff --git a/kamon-examples/kamon-scalatra-example/src/main/scala/kamon/example/KamonSupport.scala b/kamon-examples/kamon-scalatra-example/src/main/scala/kamon/example/KamonSupport.scala new file mode 100644 index 00000000..f0ba7b2d --- /dev/null +++ b/kamon-examples/kamon-scalatra-example/src/main/scala/kamon/example/KamonSupport.scala @@ -0,0 +1,34 @@ +/* + * ========================================================================================= + * Copyright © 2013-2015 the kamon project <http://kamon.io/> + * + * 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 kamon.example + +import kamon.Kamon +import kamon.trace.Tracer +import kamon.util.{SameThreadExecutionContext, Latency} + +import scala.concurrent.Future + +trait KamonSupport { + def counter(name: String) = Kamon.metrics.counter(name) + def minMaxCounter(name: String) = Kamon.metrics.minMaxCounter(name) + def histogram(name: String) = Kamon.metrics.histogram(name) + def gauge[A](name: String)(thunk: => Long) = Kamon.metrics.gauge(name)(thunk) + def time[A](name: String)(thunk: => A) = Latency.measure(Kamon.metrics.histogram(name))(thunk) + def traceFuture[A](name:String)(future: => Future[A]):Future[A] = Tracer.withContext(Kamon.tracer.newContext(name)) { + future.andThen { case completed ⇒ Tracer.currentContext.finish() }(SameThreadExecutionContext) + } +} |