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/*
* ============LICENSE_START====================================
* DCAEGEN2-SERVICES-SDK
* =========================================================
* Copyright (C) 2019-2020 Nokia. All rights reserved.
* =========================================================
* 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.dcaegen2.services.sdk.standardization.moher.adapters.springwebflux;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import org.onap.dcaegen2.services.sdk.standardization.moher.health.api.AliveMessage;
import org.onap.dcaegen2.services.sdk.standardization.moher.health.api.GsonAdaptersHealth;
import org.onap.dcaegen2.services.sdk.standardization.moher.health.api.Health;
import org.onap.dcaegen2.services.sdk.standardization.moher.health.api.HealthProvider;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import reactor.core.publisher.Mono;
@RestController
@RequestMapping(value = "/health", produces = MediaType.APPLICATION_JSON_VALUE)
public class HealthController {
private final Gson gson;
private final HealthProvider healthProvider;
public static HealthController create(HealthProvider healthProvider) {
GsonBuilder gson = new GsonBuilder();
gson.registerTypeAdapterFactory(new GsonAdaptersHealth());
return new HealthController(gson.create(), healthProvider);
}
public HealthController(Gson gson, HealthProvider healthProvider) {
this.gson = gson;
this.healthProvider = healthProvider;
}
@GetMapping("/ready")
public Mono<ResponseEntity<String>> readinessCheck() {
return healthProvider.currentHealth()
.map(health -> responseStatusForHealth(health)
.contentType(MediaType.APPLICATION_JSON)
.body(gson.toJson(health)));
}
@GetMapping("/alive")
public Mono<String> livenessCheck() {
return Mono.just(AliveMessage.ALIVE_MESSAGE_JSON);
}
private ResponseEntity.BodyBuilder responseStatusForHealth(Health health) {
return health.healthy()
? ResponseEntity.ok()
: ResponseEntity.status(HttpStatus.SERVICE_UNAVAILABLE);
}
}
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