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/*
* ============LICENSE_START=======================================================
* PNF-REGISTRATION-HANDLER
* ================================================================================
* Copyright (C) 2018 NOKIA Intellectual Property. All rights reserved.
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ============LICENSE_END=========================================================
*/
package org.onap.dcaegen2.services.prh.service.producer;
import static org.onap.dcaegen2.services.prh.model.logging.MDCVariables.REQUEST_ID;
import static org.onap.dcaegen2.services.prh.model.logging.MDCVariables.X_INVOCATION_ID;
import static org.onap.dcaegen2.services.prh.model.logging.MDCVariables.X_ONAP_REQUEST_ID;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.UUID;
import org.apache.http.client.utils.URIBuilder;
import org.onap.dcaegen2.services.prh.config.DmaapPublisherConfiguration;
import org.onap.dcaegen2.services.prh.model.ConsumerDmaapModel;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.slf4j.MDC;
import org.springframework.http.HttpStatus;
import org.springframework.web.reactive.function.BodyInserters;
import org.springframework.web.reactive.function.client.WebClient;
import reactor.core.publisher.Mono;
/**
* @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 7/4/18
*/
public class DMaaPProducerReactiveHttpClient {
private final Logger logger = LoggerFactory.getLogger(this.getClass());
private final String dmaapHostName;
private final Integer dmaapPortNumber;
private final String dmaapProtocol;
private final String dmaapTopicName;
private WebClient webClient;
/**
* Constructor DMaaPProducerReactiveHttpClient.
*
* @param dmaapPublisherConfiguration - DMaaP producer configuration object
*/
public DMaaPProducerReactiveHttpClient(DmaapPublisherConfiguration dmaapPublisherConfiguration) {
this.dmaapHostName = dmaapPublisherConfiguration.dmaapHostName();
this.dmaapProtocol = dmaapPublisherConfiguration.dmaapProtocol();
this.dmaapPortNumber = dmaapPublisherConfiguration.dmaapPortNumber();
this.dmaapTopicName = dmaapPublisherConfiguration.dmaapTopicName();
}
/**
* Function for calling DMaaP HTTP producer - post request to DMaaP.
*
* @param consumerDmaapModelMono - object which will be sent to DMaaP
* @return status code of operation
*/
public Mono<String> getDMaaPProducerResponse(ConsumerDmaapModel consumerDmaapModelMono) {
try {
return webClient
.post()
.uri(getUri())
.header(X_ONAP_REQUEST_ID, MDC.get(REQUEST_ID))
.header(X_INVOCATION_ID, UUID.randomUUID().toString())
.body(BodyInserters.fromObject(consumerDmaapModelMono))
.retrieve()
.onStatus(HttpStatus::is4xxClientError, clientResponse ->
Mono.error(new Exception("DmaapProducer HTTP" + clientResponse.statusCode()))
)
.onStatus(HttpStatus::is5xxServerError, clientResponse ->
Mono.error(new Exception("DmaapProducer HTTP " + clientResponse.statusCode())))
.bodyToMono(String.class);
} catch (URISyntaxException e) {
logger.warn("Exception while evaluating URI");
return Mono.error(e);
}
}
public DMaaPProducerReactiveHttpClient createDMaaPWebClient(WebClient webClient) {
this.webClient = webClient;
return this;
}
URI getUri() throws URISyntaxException {
return new URIBuilder().setScheme(dmaapProtocol).setHost(dmaapHostName).setPort(dmaapPortNumber)
.setPath(dmaapTopicName).build();
}
}
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