enrichment-coordinator-service/src/main/java/org/oransc/enrichment/tasks/ProducerSupervision.java

   1 /*-
   2  * ========================LICENSE_START=================================
   3  * ONAP : ccsdk oran
   4  * ======================================================================
   5  * Copyright (C) 2020 Nordix Foundation. All rights reserved.
   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
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  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===================================
  19  */
  20
  21 package org.oransc.enrichment.tasks;
  22
  23 import org.oransc.enrichment.clients.AsyncRestClient;
  24 import org.oransc.enrichment.configuration.ApplicationConfig;
  25 import org.oransc.enrichment.repository.EiJobs;
  26 import org.oransc.enrichment.repository.EiProducer;
  27 import org.oransc.enrichment.repository.EiProducers;
  28 import org.oransc.enrichment.repository.EiTypes;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31 import org.springframework.beans.factory.annotation.Autowired;
  32 import org.springframework.scheduling.annotation.EnableScheduling;
  33 import org.springframework.scheduling.annotation.Scheduled;
  34 import org.springframework.stereotype.Component;
  35
  36 import reactor.core.publisher.Flux;
  37 import reactor.core.publisher.Mono;
  38
  39 /**
  40  * Regularly checks the availability of the EI Producers
  41  */
  42 @Component
  43 @EnableScheduling
  44 @SuppressWarnings("squid:S2629") // Invoke method(s) only conditionally
  45 public class ProducerSupervision {
  46     private static final Logger logger = LoggerFactory.getLogger(ProducerSupervision.class);
  47
  48     @Autowired
  49     ApplicationConfig applicationConfig;
  50
  51     @Autowired
  52     EiProducers eiProducers;
  53
  54     @Autowired
  55     EiJobs eiJobs;
  56
  57     @Autowired
  58     EiTypes eiTypes;
  59
  60     @Scheduled(fixedRate = 1000 * 60 * 5)
  61     public void checkAllProducers() {
  62         logger.debug("Checking producers starting");
  63         createTask().subscribe(null, null, () -> logger.debug("Checking all Producers completed"));
  64     }
  65
  66     public Flux<EiProducer> createTask() {
  67         return Flux.fromIterable(eiProducers.getAllProducers()) //
  68             .flatMap(this::checkOneProducer);
  69     }
  70
  71     private Mono<EiProducer> checkOneProducer(EiProducer producer) {
  72         return restClient().get(producer.getProducerSupervisionCallbackUrl()) //
  73             .onErrorResume(throwable -> {
  74                 handleNonRespondingProducer(throwable, producer);
  75                 return Mono.empty();
  76             })//
  77             .doOnNext(response -> handleRespondingProducer(response, producer))
  78             .flatMap(response -> Mono.just(producer));
  79     }
  80
  81     private void handleNonRespondingProducer(Throwable throwable, EiProducer producer) {
  82         logger.warn("Unresponsive producer: {} exception: {}", producer.getId(), throwable.getMessage());
  83         producer.setAliveStatus(false);
  84         if (producer.isDead()) {
  85             this.eiProducers.deregisterProducer(producer, this.eiTypes, this.eiJobs);
  86         }
  87     }
  88
  89     private void handleRespondingProducer(String response, EiProducer producer) {
  90         logger.debug("{}", response);
  91         producer.setAliveStatus(true);
  92     }
  93
  94     private AsyncRestClient restClient() {
  95         return new AsyncRestClient("", this.applicationConfig.getWebClientConfig());
  96     }
  97
  98 }