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/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017-2018 AT&T 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.aai.aailog.filter;
import java.io.IOException;
import java.util.List;
import java.util.UUID;
import org.onap.aai.aailog.logs.ServiceName;
import org.onap.logging.filter.base.AbstractMetricLogFilter;
import org.onap.logging.filter.base.Constants;
import org.onap.logging.ref.slf4j.ONAPLogConstants;
import org.slf4j.MDC;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpRequest;
import org.springframework.http.client.ClientHttpRequestExecution;
import org.springframework.http.client.ClientHttpRequestInterceptor;
import org.springframework.http.client.ClientHttpResponse;
public class RestClientLoggingInterceptor extends AbstractMetricLogFilter<HttpRequest, ClientHttpResponse, HttpHeaders> implements ClientHttpRequestInterceptor {
@Override
public ClientHttpResponse intercept(HttpRequest request, byte[] body, ClientHttpRequestExecution execution)
throws IOException
{
this.setInvocationId(request.getHeaders());
pre(request, request.getHeaders());
ClientHttpResponse resp = execution.execute(request, body);
post(request, resp);
return resp;
}
protected void pre(HttpRequest request, HttpHeaders requestHeaders) {
try {
setupMDC(request);
setupHeaders(request, requestHeaders);
super.logInvoke();
} catch (Exception e) {
logger.warn("Error in RestClientLoggingInterceptor pre", e);
}
}
protected void setupHeaders(HttpRequest clientRequest, HttpHeaders requestHeaders) {
String requestId = extractRequestID(requestHeaders);
addHeader(requestHeaders, ONAPLogConstants.Headers.REQUEST_ID, requestId);
addHeader(requestHeaders, Constants.HttpHeaders.HEADER_REQUEST_ID, requestId);
String transactionId = requestHeaders.getFirst(Constants.HttpHeaders.TRANSACTION_ID);
if (transactionId == null || transactionId.isEmpty()) {
addHeader(requestHeaders, Constants.HttpHeaders.TRANSACTION_ID, requestId);
}
addHeader(requestHeaders, Constants.HttpHeaders.ECOMP_REQUEST_ID, requestId);
addHeader(requestHeaders, ONAPLogConstants.Headers.INVOCATION_ID, MDC.get(ONAPLogConstants.MDCs.INVOCATION_ID));
String pName = getProperty(Constants.Property.PARTNER_NAME);
if (pName != null && (!pName.isEmpty())) {
addHeader(requestHeaders, ONAPLogConstants.Headers.PARTNER_NAME, pName);
}
}
protected String extractRequestID(HttpHeaders requestHeaders) {
String requestId = MDC.get(ONAPLogConstants.MDCs.REQUEST_ID);
if (requestId == null || requestId.isEmpty()) {
requestId = requestHeaders.getFirst(Constants.HttpHeaders.TRANSACTION_ID);
if (requestId == null || requestId.isEmpty()) {
requestId = UUID.randomUUID().toString();
}
MDC.put(ONAPLogConstants.MDCs.REQUEST_ID, requestId);
}
return requestId;
}
public void setInvocationId(HttpHeaders headers) {
String invocationId = null;
List<String> headerList = headers.get(ONAPLogConstants.Headers.INVOCATION_ID);
if (headerList != null && (!headerList.isEmpty())) {
for (String h : headerList) {
if ( h != null && (!h.isEmpty()) ) {
invocationId = h;
break;
}
}
headers.remove(ONAPLogConstants.Headers.INVOCATION_ID);
}
if (invocationId == null) {
invocationId = UUID.randomUUID().toString();
}
MDC.put(ONAPLogConstants.MDCs.INVOCATION_ID, invocationId);
}
@Override
protected void addHeader(HttpHeaders requestHeaders, String headerName, String headerValue) {
requestHeaders.add(headerName, headerValue);
}
protected String getTargetServiceName(HttpRequest request) {
return (getServiceName(request));
}
protected String getServiceName(HttpRequest request){
String path = request.getURI().getRawPath();
return(ServiceName.extractServiceName(path));
}
protected int getHttpStatusCode(ClientHttpResponse response) {
int result = 0;
if (response != null ) {
try {
result = response.getStatusCode().value();
}
catch (IOException e) {
logger.warn("Error in RestClientLoggingInterceptor getHttpStatusCode {}", e.getMessage());
}
}
return result;
}
protected String getResponseCode(ClientHttpResponse response) {
String result = "";
if (response != null ) {
try {
result = response.getStatusCode().toString();
}
catch (IOException e) {
logger.warn("Error in RestClientLoggingInterceptor getResponseCode {}", e.getMessage());
}
}
return result;
}
protected String getTargetEntity(HttpRequest request) {
//TODO where do we get this from?
return Constants.DefaultValues.UNKNOWN_TARGET_ENTITY;
}
}
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