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

   1 /*
   2  * ============LICENSE_START=======================================================
   3  * DCAEGEN2-SERVICES-SDK
   4  * ================================================================================
   5  * Copyright (C) 2019 Nokia. 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.dcaegen2.services.sdk.rest.services.cbs.client.impl;
  21
  22 import com.google.gson.JsonObject;
  23 import java.net.InetSocketAddress;
  24 import java.net.MalformedURLException;
  25 import java.net.URL;
  26 import org.jetbrains.annotations.NotNull;
  27 import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.HttpMethod;
  28 import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.HttpResponse;
  29 import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.ImmutableHttpRequest;
  30 import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.RxHttpClient;
  31 import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.api.CbsClient;
  32 import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.model.CbsRequest;
  33 import org.slf4j.Logger;
  34 import org.slf4j.LoggerFactory;
  35 import reactor.core.publisher.Mono;
  36
  37 public class CbsClientImpl implements CbsClient {
  38
  39     private static final Logger LOGGER = LoggerFactory.getLogger(CbsClientImpl.class);
  40     private final RxHttpClient httpClient;
  41     private final String serviceName;
  42     private final InetSocketAddress cbsAddress;
  43
  44     public CbsClientImpl(RxHttpClient httpClient, String serviceName, InetSocketAddress cbsAddress) {
  45         this.httpClient = httpClient;
  46         this.serviceName = serviceName;
  47         this.cbsAddress = cbsAddress;
  48     }
  49
  50     @Override
  51     public @NotNull Mono<JsonObject> get(CbsRequest request) {
  52         return Mono.fromCallable(() -> constructUrl(request).toString())
  53                 .doOnNext(this::logRequestUrl)
  54                 .map(url -> ImmutableHttpRequest.builder()
  55                         .method(HttpMethod.GET)
  56                         .url(url)
  57                         .diagnosticContext(request.diagnosticContext())
  58                         .build())
  59                 .flatMap(httpClient::call)
  60                 .doOnNext(HttpResponse::throwIfUnsuccessful)
  61                 .map(resp -> resp.bodyAsJson(JsonObject.class))
  62                 .doOnNext(this::logCbsResponse);
  63     }
  64
  65
  66     private URL constructUrl(CbsRequest request) {
  67         try {
  68             return new URL(
  69                     "http",
  70                     cbsAddress.getHostString(),
  71                     cbsAddress.getPort(),
  72                     request.requestPath().getForService(serviceName));
  73         } catch (MalformedURLException e) {
  74             throw new IllegalArgumentException("Invalid CBS URL", e);
  75         }
  76     }
  77
  78     private void logRequestUrl(String url) {
  79         LOGGER.debug("Calling {} for configuration", url);
  80     }
  81
  82     private void logCbsResponse(JsonObject json) {
  83         LOGGER.info("Got successful response from Config Binding Service");
  84         LOGGER.debug("CBS response: {}", json);
  85     }
  86 }