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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.consumer;
import static org.onap.dcaegen2.services.prh.model.logging.MdcVariables.RESPONSE_CODE;
import static org.onap.dcaegen2.services.prh.model.logging.MdcVariables.SERVICE_NAME;
import io.netty.handler.ssl.SslContext;
import javax.net.ssl.SSLException;
import org.onap.dcaegen2.services.prh.config.DmaapConsumerConfiguration;
import org.onap.dcaegen2.services.prh.ssl.SslFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.slf4j.MDC;
import org.springframework.http.client.reactive.ClientHttpConnector;
import org.springframework.http.client.reactive.ReactorClientHttpConnector;
import org.springframework.web.reactive.function.client.ExchangeFilterFunction;
import org.springframework.web.reactive.function.client.WebClient;
import reactor.core.publisher.Mono;
import reactor.netty.http.client.HttpClient;
/**
* @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 7/4/18
*/
public class DMaaPReactiveWebClientFactory {
private final Logger logger = LoggerFactory.getLogger(this.getClass());
private final SslFactory sslFactory;
public DMaaPReactiveWebClientFactory() {
this(new SslFactory());
}
DMaaPReactiveWebClientFactory(SslFactory sslFactory) {
this.sslFactory = sslFactory;
}
/**
* Construct Reactive WebClient with appropriate settings.
*
* @return WebClient
*/
public WebClient build(DmaapConsumerConfiguration consumerConfiguration) throws SSLException {
SslContext sslContext = createSslContext(consumerConfiguration);
ClientHttpConnector reactorClientHttpConnector = new ReactorClientHttpConnector(
HttpClient.create().secure(sslContextSpec -> sslContextSpec.sslContext(sslContext)));
return WebClient.builder()
.clientConnector(reactorClientHttpConnector)
.filter(logRequest())
.filter(logResponse())
.build();
}
private SslContext createSslContext(DmaapConsumerConfiguration consumerConfiguration) throws SSLException {
if (consumerConfiguration.enableDmaapCertAuth()) {
return sslFactory.createSecureContext(
consumerConfiguration.keyStorePath(), consumerConfiguration.keyStorePasswordPath(),
consumerConfiguration.trustStorePath(), consumerConfiguration.trustStorePasswordPath()
);
}
return sslFactory.createInsecureContext();
}
private ExchangeFilterFunction logResponse() {
return ExchangeFilterFunction.ofResponseProcessor(clientResponse -> {
MDC.put(RESPONSE_CODE, String.valueOf(clientResponse.statusCode()));
logger.info("Response Status {}", clientResponse.statusCode());
MDC.remove(RESPONSE_CODE);
return Mono.just(clientResponse);
});
}
private ExchangeFilterFunction logRequest() {
return ExchangeFilterFunction.ofRequestProcessor(clientRequest -> {
MDC.put(SERVICE_NAME, String.valueOf(clientRequest.url()));
logger.info("Request: {} {}", clientRequest.method(), clientRequest.url());
clientRequest.headers()
.forEach((name, values) -> values.forEach(value -> logger.info("{}={}", name, value)));
MDC.remove(SERVICE_NAME);
return Mono.just(clientRequest);
});
}
}
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