blob: b4d7c14227bb30551edb46e53ec78328fd8ca4e4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
/*
* ============LICENSE_START=======================================================
* dcaegen2-collectors-veshv
* ================================================================================
* Copyright (C) 2018 NOKIA
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.dcae.collectors.veshv.healthcheck.factory
import arrow.effects.IO
import io.netty.handler.codec.http.HttpResponseStatus
import org.onap.dcae.collectors.veshv.healthcheck.api.HealthDescription
import org.onap.dcae.collectors.veshv.healthcheck.api.HealthState
import org.onap.dcae.collectors.veshv.utils.NettyServerHandle
import org.onap.dcae.collectors.veshv.utils.ServerHandle
import reactor.core.publisher.Flux
import reactor.core.publisher.Mono
import reactor.netty.http.server.HttpServer
import reactor.netty.http.server.HttpServerRequest
import reactor.netty.http.server.HttpServerResponse
import java.net.SocketAddress
import java.util.concurrent.atomic.AtomicReference
/**
* @author Jakub Dudycz <jakub.dudycz@nokia.com>
* @since August 2018
*/
class HealthCheckApiServer(private val healthState: HealthState,
private val listenAddress: SocketAddress) {
private val healthDescription: AtomicReference<HealthDescription> = AtomicReference(HealthDescription.STARTING)
fun start(): IO<ServerHandle> = IO {
healthState().subscribe(healthDescription::set)
val ctx = HttpServer.create()
.tcpConfiguration { it.addressSupplier { listenAddress } }
.route { routes ->
routes.get("/health/ready", ::readinessHandler)
routes.get("/health/alive", ::livenessHandler)
}
NettyServerHandle(ctx.bindNow())
}
private fun readinessHandler(req: HttpServerRequest, resp: HttpServerResponse) =
healthDescription.get().run {
resp.status(status.httpResponseStatus.number).sendString(Flux.just(status.toString(), "\n", message))
}
private fun livenessHandler(req: HttpServerRequest, resp: HttpServerResponse) =
resp.status(HttpResponseStatus.NOT_IMPLEMENTED).sendString(Mono.just("Not implemented yet"))
}
|