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/*
*
* Copyright (c) 2022. Deutsche Telekom AG
*
* 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.
*
* SPDX-License-Identifier: Apache-2.0
*
*
*/
package org.onap.portal.history.configuration;
import org.onap.portal.history.util.Logger;
import org.springframework.stereotype.Component;
import org.springframework.web.filter.reactive.ServerWebExchangeContextFilter;
import org.springframework.web.server.ServerWebExchange;
import org.springframework.web.server.WebFilter;
import org.springframework.web.server.WebFilterChain;
import reactor.core.publisher.Mono;
import java.util.List;
@Component
public class RequestIdInterceptor implements WebFilter {
public static final String EXCHANGE_CONTEXT_ATTRIBUTE = ServerWebExchangeContextFilter.class.getName()
+ ".EXCHANGE_CONTEXT";
public static final String X_REQUEST_ID = "X-Request-Id";
/**
* Override a web filter to write log entries for every request and response and
* add header in response with X_REQUEST_ID
*/
@Override
public Mono<Void> filter(ServerWebExchange exchange, WebFilterChain chain) {
List<String> xRequestIdList = exchange.getRequest().getHeaders().get(X_REQUEST_ID);
if (xRequestIdList != null && !xRequestIdList.isEmpty()) {
String xRequestId = xRequestIdList.get(0);
exchange.getResponse().getHeaders().add(X_REQUEST_ID, xRequestId);
}
return chain
.filter(exchange)
.contextWrite(cxt -> cxt.put(EXCHANGE_CONTEXT_ATTRIBUTE, exchange));
}
}
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