gerrit.onap Code Review - ccsdk/oran.git/blob

   1 /*-
   2  * ========================LICENSE_START=================================
   3  * ONAP : ccsdk oran
   4  * ======================================================================
   5  * Copyright (C) 2024 OpenInfra Foundation Europe. 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 package org.onap.ccsdk.oran.a1policymanagementservice.configuration;
  21
  22 import io.opentelemetry.instrumentation.spring.webflux.v5_3.SpringWebfluxTelemetry;
  23 import org.slf4j.Logger;
  24 import org.slf4j.LoggerFactory;
  25 import org.springframework.beans.factory.annotation.Autowired;
  26 import org.springframework.context.annotation.DependsOn;
  27 import org.springframework.http.client.reactive.ReactorClientHttpConnector;
  28 import org.springframework.stereotype.Service;
  29 import org.springframework.web.reactive.function.client.ExchangeFilterFunction;
  30 import org.springframework.web.reactive.function.client.ExchangeStrategies;
  31 import org.springframework.web.reactive.function.client.WebClient;
  32
  33 import reactor.core.publisher.Mono;
  34 import reactor.netty.http.client.HttpClient;
  35
  36 import java.lang.invoke.MethodHandles;
  37 import java.util.concurrent.atomic.AtomicInteger;
  38
  39 @Service
  40 @DependsOn({"otelConfig"})
  41 public class WebClientUtil {
  42
  43     private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
  44
  45     private static OtelConfig otelConfig;
  46
  47     private static SpringWebfluxTelemetry springWebfluxTelemetry;
  48
  49     public WebClientUtil(OtelConfig otelConfig, @Autowired(required = false) SpringWebfluxTelemetry springWebfluxTelemetry) {
  50         WebClientUtil.otelConfig = otelConfig;
  51         if (otelConfig.isTracingEnabled()) {
  52             WebClientUtil.springWebfluxTelemetry = springWebfluxTelemetry;
  53         }
  54     }
  55
  56     public static WebClient buildWebClient(String baseURL, final HttpClient httpClient) {
  57
  58         Object traceTag = new AtomicInteger().incrementAndGet();
  59
  60         ExchangeStrategies exchangeStrategies = ExchangeStrategies.builder() //
  61                 .codecs(configurer -> configurer.defaultCodecs().maxInMemorySize(-1)) //
  62                 .build();
  63
  64         ExchangeFilterFunction reqLogger = ExchangeFilterFunction.ofRequestProcessor(req -> {
  65             logger.debug("{} {} uri = '{}''", traceTag, req.method(), req.url());
  66             return Mono.just(req);
  67         });
  68
  69         ExchangeFilterFunction respLogger = ExchangeFilterFunction.ofResponseProcessor(resp -> {
  70             logger.debug("{} resp: {}", traceTag, resp.statusCode());
  71             return Mono.just(resp);
  72         });
  73
  74         WebClient.Builder webClientBuilder = WebClient.builder()
  75                 .clientConnector(new ReactorClientHttpConnector(httpClient))
  76                 .baseUrl(baseURL)
  77                 .exchangeStrategies(exchangeStrategies)
  78                 .filter(reqLogger)
  79                 .filter(respLogger);
  80
  81         if (otelConfig.isSouthTracingEnabled()) {
  82             webClientBuilder.filters(springWebfluxTelemetry::addClientTracingFilter);
  83         }
  84
  85         return webClientBuilder.build();
  86     }
  87 }