enrichment-coordinator-service/src/main/java/org/oransc/enrichment/controllers/producer/ProducerCallbacks.java

   1 /*-
   2  * ========================LICENSE_START=================================
   3  * O-RAN-SC
   4  * %%
   5  * Copyright (C) 2020 Nordix Foundation
   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.controllers.producer;
  22
  23 import com.google.gson.Gson;
  24 import com.google.gson.GsonBuilder;
  25
  26 import java.lang.invoke.MethodHandles;
  27 import java.util.Collection;
  28 import java.util.Vector;
  29
  30 import org.oransc.enrichment.clients.AsyncRestClient;
  31 import org.oransc.enrichment.clients.AsyncRestClientFactory;
  32 import org.oransc.enrichment.configuration.ApplicationConfig;
  33 import org.oransc.enrichment.repository.EiJob;
  34 import org.oransc.enrichment.repository.EiProducer;
  35 import org.oransc.enrichment.repository.EiTypes;
  36 import org.slf4j.Logger;
  37 import org.slf4j.LoggerFactory;
  38 import org.springframework.beans.factory.annotation.Autowired;
  39 import org.springframework.stereotype.Component;
  40
  41 import reactor.core.publisher.Flux;
  42 import reactor.core.publisher.Mono;
  43
  44 /**
  45  * Callbacks to the EiProducer
  46  */
  47 @Component
  48 @SuppressWarnings("java:S3457") // No need to call "toString()" method as formatting and string ..
  49 public class ProducerCallbacks {
  50
  51     private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
  52     private static Gson gson = new GsonBuilder().create();
  53
  54     private final AsyncRestClient restClient;
  55     private final EiTypes eiTypes;
  56
  57     @Autowired
  58     public ProducerCallbacks(ApplicationConfig config, EiTypes eiTypes) {
  59         AsyncRestClientFactory restClientFactory = new AsyncRestClientFactory(config.getWebClientConfig());
  60         this.restClient = restClientFactory.createRestClient("");
  61         this.eiTypes = eiTypes;
  62     }
  63
  64     public void notifyProducersJobDeleted(EiJob eiJob) {
  65         ProducerJobInfo request = new ProducerJobInfo(eiJob);
  66         String body = gson.toJson(request);
  67         for (EiProducer producer : getProducers(eiJob)) {
  68             restClient.post(producer.getJobDeletionCallbackUrl(), body) //
  69                 .subscribe(notUsed -> logger.debug("Job deleted OK {}", producer.getId()), //
  70                     throwable -> logger.warn("Job delete failed {}", producer.getId(), throwable.toString()), null);
  71         }
  72     }
  73
  74     /**
  75      * Calls all producers for an EiJob activation.
  76      *
  77      * @param eiJob an EI job
  78      * @return the number of producers that returned OK
  79      */
  80     public Mono<Integer> notifyProducersJobStarted(EiJob eiJob) {
  81         return Flux.fromIterable(getProducers(eiJob)) //
  82             .flatMap(eiProducer -> notifyProducerJobStarted(eiProducer, eiJob)) //
  83             .collectList() //
  84             .flatMap(okResponses -> Mono.just(Integer.valueOf(okResponses.size()))); //
  85     }
  86
  87     /**
  88      * Calls one producer for an EiJob activation.
  89      *
  90      * @param producer a producer
  91      * @param eiJob an EI job
  92      * @return the body of the response from the REST call
  93      */
  94     public Mono<String> notifyProducerJobStarted(EiProducer producer, EiJob eiJob) {
  95         ProducerJobInfo request = new ProducerJobInfo(eiJob);
  96         String body = gson.toJson(request);
  97
  98         return restClient.post(producer.getJobCreationCallbackUrl(), body)
  99             .doOnNext(resp -> logger.debug("Job subscription started OK {}", producer.getId()))
 100             .onErrorResume(throwable -> {
 101                 logger.warn("Job subscription failed {}", producer.getId(), throwable.toString());
 102                 return Mono.empty();
 103             });
 104     }
 105
 106     private Collection<EiProducer> getProducers(EiJob eiJob) {
 107         try {
 108             return this.eiTypes.getType(eiJob.typeId()).getProducers();
 109         } catch (Exception e) {
 110             return new Vector<>();
 111         }
 112     }
 113
 114 }