| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.openwhisk.core.monitoring.metrics |
| |
| import akka.http.scaladsl.model.StatusCodes.ServiceUnavailable |
| import akka.http.scaladsl.model.{ContentType, MessageEntity} |
| import akka.http.scaladsl.server.Directives._ |
| import akka.http.scaladsl.server.Route |
| import org.apache.openwhisk.connector.kafka.KafkaMetricRoute |
| |
| import scala.concurrent.ExecutionContext |
| |
| trait PrometheusExporter { |
| def getReport(): MessageEntity |
| } |
| |
| object PrometheusExporter { |
| val textV4: ContentType = ContentType.parse("text/plain; version=0.0.4; charset=utf-8").right.get |
| } |
| |
| class PrometheusEventsApi(consumer: EventConsumer, prometheus: PrometheusExporter)(implicit ec: ExecutionContext) { |
| val routes: Route = { |
| get { |
| path("ping") { |
| if (consumer.isRunning) { |
| complete("pong") |
| } else { |
| complete(ServiceUnavailable -> "Consumer not running") |
| } |
| } ~ path("metrics") { |
| encodeResponse { |
| complete(prometheus.getReport()) |
| } |
| } ~ KafkaMetricRoute(consumer) |
| } |
| } |
| } |