Do not overwrite client span if incoming request has "uber-trace-id" header

rafis · rafis · commit abad22655ea1 · 2023-01-23T16:01:32.000+03:00
diff --git a/instrument-starters/opentracing-spring-cloud-gateway-starter/src/main/java/io/opentracing/contrib/spring/cloud/gateway/TraceRequestHttpHeadersFilter.java b/instrument-starters/opentracing-spring-cloud-gateway-starter/src/main/java/io/opentracing/contrib/spring/cloud/gateway/TraceRequestHttpHeadersFilter.java
@@ -86,7 +86,7 @@ private void addHeadersWithInput(ServerHttpRequest.Builder builder,
         .entrySet()) {
       String key = entry.getKey();
       List<String> value = entry.getValue();
-      headersWithInput.put(key, value);
+      headersWithInput.putIfAbsent(key, value);
     }
   }
 

Original file line number	Diff line number	Diff line change
`@@ -86,7 +86,7 @@ private void addHeadersWithInput(ServerHttpRequest.Builder builder,`
`86`	`86`	`.entrySet()) {`
`87`	`87`	`String key = entry.getKey();`
`88`	`88`	`List<String> value = entry.getValue();`
`89`		`- headersWithInput.put(key, value);`
	`89`	`+ headersWithInput.putIfAbsent(key, value);`
`90`	`90`	`}`
`91`	`91`	`}`
`92`	`92`