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         for (EiProducer producer : getProducers(eiJob)) {
  66             String url = producer.getJobCallbackUrl() + "/" + eiJob.id();
  67             restClient.delete(url) //
  68                 .subscribe(notUsed -> logger.debug("Producer job deleted OK {}", producer.getId()), //
  69                     throwable -> logger.warn("Producer job delete failed {} {}", producer.getId(),
  70                         throwable.getMessage()),
  71                     null);
  72         }
  73     }
  74
  75     /**
  76      * Calls all producers for an EiJob activation.
  77      *
  78      * @param eiJob an EI job
  79      * @return the number of producers that returned OK
  80      */
  81     public Mono<Integer> notifyProducersJobStarted(EiJob eiJob) {
  82         return Flux.fromIterable(getProducers(eiJob)) //
  83             .flatMap(eiProducer -> notifyProducerJobStarted(eiProducer, eiJob)) //
  84             .collectList() //
  85             .flatMap(okResponses -> Mono.just(Integer.valueOf(okResponses.size()))); //
  86     }
  87
  88     /**
  89      * Calls one producer for an EiJob activation.
  90      *
  91      * @param producer a producer
  92      * @param eiJob an EI job
  93      * @return the body of the response from the REST call
  94      */
  95     public Mono<String> notifyProducerJobStarted(EiProducer producer, EiJob eiJob) {
  96         ProducerJobInfo request = new ProducerJobInfo(eiJob);
  97         String body = gson.toJson(request);
  98
  99         return restClient.post(producer.getJobCallbackUrl(), body)
 100             .doOnNext(resp -> logger.debug("Job subscription started OK {}", producer.getId()))
 101             .onErrorResume(throwable -> {
 102                 logger.warn("Job subscription failed {}", producer.getId(), throwable.toString());
 103                 return Mono.empty();
 104             });
 105     }
 106
 107     private Collection<EiProducer> getProducers(EiJob eiJob) {
 108         try {
 109             return this.eiTypes.getType(eiJob.typeId()).getProducers();
 110         } catch (Exception e) {
 111             return new Vector<>();
 112         }
 113     }
 114
 115 }