2 * ============LICENSE_START=======================================================
3 * DCAEGEN2-SERVICES-SDK
4 * ================================================================================
5 * Copyright (C) 2018 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
11 * http://www.apache.org/licenses/LICENSE-2.0
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=========================================================
21 package org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.service.producer;
24 import static org.onap.dcaegen2.services.sdk.rest.services.model.logging.MdcVariables.REQUEST_ID;
25 import static org.onap.dcaegen2.services.sdk.rest.services.model.logging.MdcVariables.X_INVOCATION_ID;
26 import static org.onap.dcaegen2.services.sdk.rest.services.model.logging.MdcVariables.X_ONAP_REQUEST_ID;
29 import java.util.UUID;
30 import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.config.DmaapPublisherConfiguration;
31 import org.onap.dcaegen2.services.sdk.rest.services.model.DmaapModel;
32 import org.onap.dcaegen2.services.sdk.rest.services.model.JsonBodyBuilder;
33 import org.onap.dcaegen2.services.sdk.rest.services.uri.URI.URIBuilder;
34 import org.slf4j.Logger;
35 import org.slf4j.LoggerFactory;
37 import org.springframework.http.HttpEntity;
38 import org.springframework.http.HttpHeaders;
39 import org.springframework.http.HttpMethod;
40 import org.springframework.http.ResponseEntity;
41 import org.springframework.web.client.RestTemplate;
42 import reactor.core.publisher.Mono;
46 * @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 7/4/18
48 public class DMaaPPublisherReactiveHttpClient {
50 private final static String SLASH = "/";
51 private final Logger logger = LoggerFactory.getLogger(DMaaPPublisherReactiveHttpClient.class);
52 private final String dmaapHostName;
53 private final Integer dmaapPortNumber;
54 private final String dmaapProtocol;
55 private final String dmaapTopicName;
56 private final String dmaapContentType;
57 private final Mono<RestTemplate> restTemplateMono;
58 private final JsonBodyBuilder jsonBodyBuilder;
61 * Constructor DMaaPPublisherReactiveHttpClient.
63 * @param dmaapPublisherConfiguration - DMaaP producer configuration object
65 DMaaPPublisherReactiveHttpClient(DmaapPublisherConfiguration dmaapPublisherConfiguration,
66 Mono<RestTemplate> restTemplateMono, JsonBodyBuilder jsonBodyBuilder) {
67 this.dmaapHostName = dmaapPublisherConfiguration.dmaapHostName();
68 this.dmaapProtocol = dmaapPublisherConfiguration.dmaapProtocol();
69 this.dmaapPortNumber = dmaapPublisherConfiguration.dmaapPortNumber();
70 this.dmaapTopicName = dmaapPublisherConfiguration.dmaapTopicName();
71 this.dmaapContentType = dmaapPublisherConfiguration.dmaapContentType();
72 this.restTemplateMono = restTemplateMono;
73 this.jsonBodyBuilder = jsonBodyBuilder;
77 * Function for calling DMaaP HTTP producer - post request to DMaaP.
79 * @param dmaapModel - object which will be sent to DMaaP
80 * @return status code of operation
83 public Mono<ResponseEntity<String>> getDMaaPProducerResponse(DmaapModel dmaapModel) {
84 return Mono.defer(() -> {
85 HttpEntity<String> request = new HttpEntity<>(jsonBodyBuilder.createJsonBody(dmaapModel), getAllHeaders());
86 logger.info("Request: {} {}", getUri(), request);
87 return restTemplateMono.map(
88 restTemplate -> restTemplate.exchange(getUri(), HttpMethod.POST, request, String.class));
92 private HttpHeaders getAllHeaders() {
93 HttpHeaders headers = new HttpHeaders();
94 headers.set(X_ONAP_REQUEST_ID, MDC.get(REQUEST_ID));
95 headers.set(X_INVOCATION_ID, UUID.randomUUID().toString());
96 headers.set(HttpHeaders.CONTENT_TYPE, dmaapContentType);
103 new URIBuilder().scheme(dmaapProtocol).host(dmaapHostName).port(dmaapPortNumber).path(createRequestPath())
104 .build().toString());
107 private String createRequestPath() {
108 return new StringBuilder().append(SLASH).append(dmaapTopicName).toString();