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/*
* =========================================================================================
* 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
}
}
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