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GH-2820: Component beans and function return types

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- When Kafka Streams functions are provided as component beans,
   the function type check in the core Spring Cloud Stream framework,
   fails with an NPE. Addressing this issue.

Resolves https://github.com/spring-cloud/spring-cloud-stream/issues/2820
This commit is contained in:
Soby Chacko
2023-09-29 17:00:07 -04:00
parent 3a52c3b3cf
commit d1a0aff623
1 changed files with 7 additions and 3 deletions
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10
core/spring-cloud-stream/src/main/java/org/springframework/cloud/stream/function/FunctionConfiguration.java
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@@ -1026,11 +1026,15 @@ public class FunctionConfiguration {
if (this.applicationContext.containsBean(functionName)) {
Object functionBean = this.applicationContext.getBean(functionName);
Type functionType = FunctionTypeUtils.discoverFunctionType(functionBean, functionName, (GenericApplicationContext) this.applicationContext);
String functionTypeStringValue = functionType.toString();
if (functionTypeStringValue.contains("KTable") || functionTypeStringValue.contains("KStream")) {
if (functionType == null) {
eligibleDefinition = false;
}
else {
String functionTypeStringValue = functionType.toString();
if (functionTypeStringValue.contains("KTable") || functionTypeStringValue.contains("KStream")) {
eligibleDefinition = false;
}
}
}
else {
logger.warn("You have defined function definition that does not exist: " + functionName);