gerrit.onap Code Review - dcaegen2/services.git/blob

   1 /*
   2  * ============LICENSE_START=======================================================
   3  * BBS-RELOCATION-CPE-AUTHENTICATION-HANDLER
   4  * ================================================================================
   5  * Copyright (C) 2019 NOKIA Intellectual Property. 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.onap.bbs.event.processor.tasks;
  22
  23 import java.util.Optional;
  24
  25 import javax.annotation.PostConstruct;
  26 import javax.annotation.PreDestroy;
  27 import javax.net.ssl.SSLException;
  28
  29 import org.onap.bbs.event.processor.config.ApplicationConfiguration;
  30 import org.onap.bbs.event.processor.config.ConfigurationChangeObserver;
  31 import org.onap.bbs.event.processor.exceptions.DmaapException;
  32 import org.onap.bbs.event.processor.model.ControlLoopPublisherDmaapModel;
  33 import org.onap.bbs.event.processor.utilities.ControlLoopJsonBodyBuilder;
  34 import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.HttpResponse;
  35 import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.service.producer.DMaaPPublisherReactiveHttpClient;
  36 import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.service.producer.DmaaPRestTemplateFactory;
  37 import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.service.producer.PublisherReactiveHttpClientFactory;
  38 import org.slf4j.Logger;
  39 import org.slf4j.LoggerFactory;
  40 import org.springframework.beans.factory.annotation.Autowired;
  41 import org.springframework.stereotype.Component;
  42
  43 import reactor.core.publisher.Mono;
  44
  45 @Component
  46 public class DmaapPublisherTaskImpl implements DmaapPublisherTask, ConfigurationChangeObserver {
  47
  48     private static final Logger LOGGER = LoggerFactory.getLogger(DmaapPublisherTaskImpl.class);
  49     private ApplicationConfiguration configuration;
  50     private final PublisherReactiveHttpClientFactory httpClientFactory;
  51
  52     private DMaaPPublisherReactiveHttpClient httpClient;
  53
  54     @Autowired
  55     DmaapPublisherTaskImpl(ApplicationConfiguration configuration) {
  56         this(configuration, new PublisherReactiveHttpClientFactory(new DmaaPRestTemplateFactory(),
  57                 new ControlLoopJsonBodyBuilder()));
  58     }
  59
  60     DmaapPublisherTaskImpl(ApplicationConfiguration configuration,
  61                            PublisherReactiveHttpClientFactory httpClientFactory) {
  62         this.configuration = configuration;
  63         this.httpClientFactory = httpClientFactory;
  64
  65         try {
  66             httpClient = httpClientFactory.create(this.configuration.getDmaapPublisherConfiguration());
  67         } catch (SSLException e) {
  68             LOGGER.error("SSL error while creating HTTP Client: {}", e.getMessage());
  69             LOGGER.debug("SSL exception\n", e);
  70         }
  71     }
  72
  73     @PostConstruct
  74     void registerForConfigChanges() {
  75         configuration.register(this);
  76     }
  77
  78     @PreDestroy
  79     void unRegisterForConfigChanges() {
  80         configuration.unRegister(this);
  81     }
  82
  83     @Override
  84     public synchronized void updateConfiguration() {
  85         LOGGER.info("DMaaP Publisher update due to new application configuration");
  86         try {
  87             LOGGER.info("Creating secure context with:\n {}", this.configuration.getDmaapPublisherConfiguration());
  88             httpClient = httpClientFactory.create(this.configuration.getDmaapPublisherConfiguration());
  89         } catch (SSLException e) {
  90             LOGGER.error("SSL error while updating HTTP Client after a config update: {}", e.getMessage());
  91             LOGGER.debug("SSL exception\n", e);
  92         }
  93     }
  94
  95     @Override
  96     public Mono<HttpResponse> execute(ControlLoopPublisherDmaapModel controlLoopPublisherDmaapModel) {
  97         if (controlLoopPublisherDmaapModel == null) {
  98             throw new DmaapException("Cannot invoke a DMaaP Publish task with a null message");
  99         }
 100         LOGGER.info("Executing task for publishing control loop message");
 101         LOGGER.debug("CL message \n{}", controlLoopPublisherDmaapModel);
 102         DMaaPPublisherReactiveHttpClient httpClient = getHttpClient();
 103         return httpClient.getDMaaPProducerResponse(controlLoopPublisherDmaapModel, Optional.empty());
 104     }
 105
 106     private synchronized DMaaPPublisherReactiveHttpClient getHttpClient() {
 107         return httpClient;
 108     }
 109 }