Version des `srping-consumer` mit `ErrorHandlingDeserializer`

* Wie von den Logs nahegelegt, den `ErrorHandlingDeserializer` konfiguriert.
* Das `REAME.sh` führt das korrigierte Verhalten bei einer Poison Pill vor:
  Der Consumer überspringt jetzt eine Poison Pill unmittelbar, wenn sie
  auftritt.

diff --git a/README.sh b/README.sh
index 14685bb..1dcc2cd 100755 (executable)
--- a/README.sh
+++ b/README.sh
@@ -35,21 +35,14 @@ echo 6  | http -v :8080/peter
 echo 77 | http -v :8080/klaus
 # end::nachrichten[]
 
-echo "Writing logic error..."
-# tag::logicerror[]
-echo 66 | http -v :8080/peter?error=1
-# end::logicerror[]
-
-echo 66 | http -v :8080/peter
-echo 7  | http -v :8080/klaus
-
-sleep 5
-
 echo "Writing poison pill..."
 # tag::poisonpill[]
 echo 'BOOM!' | kafkacat -P -b :9092 -t test
 # end::poisonpill[]
 
+echo 66 | http -v :8080/peter
+echo 7  | http -v :8080/klaus
+
 sleep 5
 docker-compose stop consumer-1 consumer-2
 docker-compose logs -f consumer-1 consumer-2

diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
index 3afdd2f..17e94ad 100644 (file)
--- a/src/main/resources/application.yml
+++ b/src/main/resources/application.yml
@@ -30,10 +30,11 @@ spring:
       auto-offset-reset: earliest
       auto-commit-interval: 5s
       key-deserializer: org.apache.kafka.common.serialization.StringDeserializer
-      value-deserializer: org.springframework.kafka.support.serializer.JsonDeserializer
+      value-deserializer: org.springframework.kafka.support.serializer.ErrorHandlingDeserializer
       properties:
         partition.assignment.strategy: org.apache.kafka.clients.consumer.StickyAssignor
         metadata.max.age.ms: 1000
+        spring.deserializer.value.delegate.class: org.springframework.kafka.support.serializer.JsonDeserializer
         spring.json.type.mapping: >
           ADD:de.juplo.kafka.MessageAddNumber,
           CALC:de.juplo.kafka.MessageCalculateSum