Promise Request-id header: Check MDC value if no header

Issue-ID: VID-647

Change-Id: I9ed97742db1f37de68bfcf1b9cd58afc996da7bf
Signed-off-by: Ittay Stern <ittay.stern@att.com>

1 files changed, 12 insertions, 1 deletions

diff --git a/vid-app-common/src/main/java/org/onap/vid/controller/filter/PromiseRequestIdFilter.java b/vid-app-common/src/main/java/org/onap/vid/controller/filter/PromiseRequestIdFilter.java
index faaf55ae7..1c96819c8 100644
--- a/vid-app-common/src/main/java/org/onap/vid/controller/filter/PromiseRequestIdFilter.java
+++ b/vid-app-common/src/main/java/org/onap/vid/controller/filter/PromiseRequestIdFilter.java
@@ -41,8 +41,10 @@ import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletRequestWrapper;
 import javax.servlet.http.HttpServletResponse;
 import javax.validation.constraints.NotNull;
+import org.onap.logging.ref.slf4j.ONAPLogConstants.MDCs;
 import org.onap.vid.logging.Headers;
 import org.onap.vid.logging.RequestIdHeader;
+import org.slf4j.MDC;
 import org.springframework.web.filter.GenericFilterBean;
 
 @WebFilter(urlPatterns = "/*")
@@ -82,12 +84,17 @@ public class PromiseRequestIdFilter extends GenericFilterBean {
 
         if (isWrapNeeded(highestPriorityHeader, originalRequestId)) {
             // Copy originalRequestId to the promised header value
-            request = new PromiseRequestIdRequestWrapper(httpRequest, toUuidOrElse(originalRequestId, UUID::randomUUID));
+            request = new PromiseRequestIdRequestWrapper(httpRequest,
+                firstValidUuidOrElse(originalRequestId, requestIdFromMDC(), UUID::randomUUID));
         }
 
         return request;
     }
 
+    private String requestIdFromMDC() {
+        return MDC.get(MDCs.REQUEST_ID);
+    }
+
     private boolean verifyAndValidateUuid(String value) {
         return isNotEmpty(value) && uuidRegex.matcher(value).matches();
     }
@@ -99,6 +106,10 @@ public class PromiseRequestIdFilter extends GenericFilterBean {
         return !headerExistsAndValid;
     }
 
+    UUID firstValidUuidOrElse(String uuid1, String uuid2, Supplier<UUID> uuidSupplier) {
+        return toUuidOrElse(uuid1, () -> toUuidOrElse(uuid2, uuidSupplier));
+    }
+
     UUID toUuidOrElse(String uuid, Supplier<UUID> uuidSupplier) {
         if (verifyAndValidateUuid(uuid)) {
             try {