[GitHub] [skywalking] stalary commented on issue #3478: Kafka plugin not work on Spring Boot and Spring Kafka

[GitBox]

stalary commented on issue #3478: Kafka plugin not work on Spring Boot and 
Spring Kafka
URL: https://github.com/apache/skywalking/issues/3478#issuecomment-533859414
 
 
   @wu-sheng I create manual class resolve this problem, but there are new 
problem.
   
   ```java
   EnhancedInstance callbackInstance = (EnhancedInstance) allArguments[1];
           if (null != callbackInstance) {
               ContextSnapshot snapshot = ContextManager.capture();
               if (null != snapshot) {
                   callbackInstance.setSkyWalkingDynamicField(snapshot);
               }
           }
   ```
   In this callbackInstance is my manual class 
org.apache.skywalking.apm.plugin.kafka.KafkaCallback.
   
   Then doSend in kafka executes
   ```java
   Callback interceptCallback = new InterceptorCallback<>(callback, 
this.interceptors, tp);
   ```
   
   This caused me to lose snapshot in CallbackInterceptor
   ```java
   ContextSnapshot contextSnapshot = (ContextSnapshot) 
objInst.getSkyWalkingDynamicField();
   ```
   contextSnapshot always is null.
   
   Can you give me some help?
   
   

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