2 * ============LICENSE_START======================================================================
3 * Copyright (C) 2018 NOKIA Intellectual Property, 2019 Nordix Foundation. All rights reserved.
4 * ===============================================================================================
5 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
6 * in compliance with the License. You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software distributed under the License
11 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
12 * or implied. See the License for the specific language governing permissions and limitations under
14 * ============LICENSE_END========================================================================
17 package org.onap.dcaegen2.collectors.datafile.model.logging;
20 import java.util.UUID;
22 import org.apache.commons.lang3.StringUtils;
23 import org.apache.http.client.methods.HttpRequestBase;
24 import org.slf4j.Logger;
25 import org.slf4j.LoggerFactory;
27 import org.slf4j.Marker;
28 import org.slf4j.MarkerFactory;
29 import org.springframework.http.HttpHeaders;
32 * Support functions for MDC
34 public final class MappedDiagnosticContext {
36 private static final String X_ONAP_REQUEST_ID = "X-ONAP-RequestID";
37 private static final String X_INVOCATION_ID = "X-InvocationID";
38 private static final String REQUEST_ID = "RequestID";
39 private static final String INVOCATION_ID = "InvocationID";
40 public static final String RESPONSE_CODE = "ResponseCode";
41 public static final String SERVICE_NAME = "ServiceName";
43 public static final Marker ENTRY = MarkerFactory.getMarker("ENTRY");
44 public static final Marker EXIT = MarkerFactory.getMarker("EXIT");
45 private static final Marker INVOKE = MarkerFactory.getMarker("INVOKE");
47 private static final Logger logger = LoggerFactory.getLogger(MappedDiagnosticContext.class);
49 private MappedDiagnosticContext() {}
52 * Inserts the relevant trace information in the HTTP header
53 * @param httpRequest a request
55 public static void appendTraceInfo(HttpRequestBase httpRequest) {
56 String requestId = MDC.get(REQUEST_ID);
57 httpRequest.addHeader(X_ONAP_REQUEST_ID, requestId);
58 httpRequest.addHeader("X-RequestID", requestId); // deprecated
59 httpRequest.addHeader("X-TransactionID", requestId); // deprecated
61 String invocationId = UUID.randomUUID().toString();
62 httpRequest.addHeader(X_INVOCATION_ID, invocationId);
63 logger.info(INVOKE, "Invoking request with invocation ID {}", invocationId);
67 * Initialize MDC from relevant information in a received HTTP header
68 * @param headers a received HTPP header
70 public static void initializeTraceContext(HttpHeaders headers) {
71 String requestId = headers.getFirst(X_ONAP_REQUEST_ID);
72 if (StringUtils.isBlank(requestId)) {
73 requestId = UUID.randomUUID().toString();
75 String invocationId = headers.getFirst(X_INVOCATION_ID);
76 if (StringUtils.isBlank(invocationId)) {
77 invocationId = UUID.randomUUID().toString();
79 MDC.put(REQUEST_ID, requestId);
80 MDC.put(INVOCATION_ID, invocationId);
84 * Initialize the MDC when a new context is started.
85 * @return a copy of the new trace context
87 public static Map<String, String> initializeTraceContext() {
89 MDC.put(REQUEST_ID, UUID.randomUUID().toString());
90 return MDC.getCopyOfContextMap();