2 * ============LICENSE_START=======================================================
3 * dcaegen2-collectors-veshv
4 * ================================================================================
5 * Copyright (C) 2018 NOKIA
6 * ================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END=========================================================
20 package org.onap.dcae.collectors.veshv.healthcheck.api
22 import arrow.effects.IO
23 import ratpack.handling.Chain
24 import ratpack.server.RatpackServer
25 import ratpack.server.ServerConfig
26 import java.util.concurrent.atomic.AtomicReference
29 * @author Jakub Dudycz <jakub.dudycz@nokia.com>
32 class HealthCheckApiServer(private val healthStateProvider: HealthStateProvider) {
34 private val healthState: AtomicReference<HealthState> = AtomicReference(HealthState.STARTING)
36 fun start(port: Int): IO<RatpackServer> = IO {
37 healthStateProvider().subscribe(healthState::set)
41 .serverConfig(ServerConfig.embedded().port(port).development(false))
42 .handlers(this::configureHandlers)
46 private fun configureHandlers(chain: Chain) {
48 .get("healthcheck") { ctx ->
49 healthState.get().run {
50 ctx.response.status(responseCode).send(message)