Connecting to multiple messaging systems in spring cloud stream application using configuration class - spring-boot

Question

I have got a requirement to read all the spring.cloud.stream.kafka.binder from a cloud configuration service. I was able to move the bindings to separate configuration class by defining a #BindingServiceProperties bean. Also was able to move one Kafka system properties to a configuration class by defining a #KafkaBinderConfigurationProperties. If both the Kafka server properties are moved in as binder configuration, the application is unable to identify the binder and respective bindings. Need help in defining multiple binders in a configuration class and attach each binders to respective bindings.
application.yml
spring:
cloud:
stream:
defaultBinder: kafka1
binders:
kafka1:
type: kafka
environment:
spring.cloud.stream.kafka.binder:
brokers: localhost:9095
autoCreateTopics: true
configuration:
auto.offset.reset: latest
kafka2:
type: kafka
environment:
spring.cloud.stream.kafka.binder:
brokers: localhost:9096
autoCreateTopics: true
configuration:
auto.offset.reset: latest
Using the application.yml configuration I'm able to attach the binder to respective bindings.
BinderConfiguration
#Primary
#Bean
public BindingServiceProperties bindingServiceProperties() {
BindingServiceProperties bindingServiceProperties = new BindingServiceProperties();
BindingProperties input1BindingProps = getInput1BindingProperties();
BindingProperties input2BindingProps = getInput2BindingProperties();
Map<String, BindingProperties> bindingProperties = new HashMap<>();
bindingProperties.put(StreamBindings.INPUT_1, input1BindingProps);
bindingProperties.put(StreamBindings.INPUT_2, input2BindingProps);
bindingServiceProperties.setBindings(bindingProperties);
return bindingServiceProperties;
}
private BindingProperties getInput1BindingProperties() {
ConsumerProperties consumerProperties = new ConsumerProperties();
consumerProperties.setMaxAttempts(1);
consumerProperties.setDefaultRetryable(false);
BindingProperties props = new BindingProperties();
props.setDestination("test1");
props.setContentType(MediaType.APPLICATION_JSON_VALUE);
props.setGroup("test-group");
props.setConsumer(consumerProperties);
props.setBinder("kafka1");
return props;
}
private BindingProperties getInput2BindingProperties() {
ConsumerProperties consumerProperties = new ConsumerProperties();
consumerProperties.setMaxAttempts(1);
consumerProperties.setDefaultRetryable(false);
BindingProperties props = new BindingProperties();
props.setDestination("test2");
props.setContentType(MediaType.APPLICATION_JSON_VALUE);
props.setGroup("test-group");
props.setConsumer(consumerProperties);
props.setBinder("kafka2");
return props;
}
KafkaBinderConfigurationProperties
#Bean
public KafkaBinderConfigurationProperties getKafka1BinderProps(){
KafkaBinderConfigurationProperties kafkaBinderConfigurationProperties
= new KafkaBinderConfigurationProperties(new KafkaProperties());
String brokers = "localhost:9095";
kafkaBinderConfigurationProperties.setBrokers(brokers);
kafkaBinderConfigurationProperties.setDefaultBrokerPort("9095");
Map<String, String> configuration = new HashMap<>();
configuration.put("auto.offset.reset", "latest");
kafkaBinderConfigurationProperties.setConfiguration(configuration);
return kafkaBinderConfigurationProperties;
}
#Bean
public KafkaBinderConfigurationProperties getKafka2BinderProps(){
KafkaBinderConfigurationProperties kafkaBinderConfigurationProperties
= new KafkaBinderConfigurationProperties(new KafkaProperties());
String brokers = "localhost:9096";
kafkaBinderConfigurationProperties.setBrokers(brokers);
kafkaBinderConfigurationProperties.setDefaultBrokerPort("9096");
Map<String, String> configuration = new HashMap<>();
configuration.put("auto.offset.reset", "latest");
kafkaBinderConfigurationProperties.setConfiguration(configuration);
return kafkaBinderConfigurationProperties;
}
Application is working fine with the properties defined in application.yml without moving binder configuration into separate configuration class.
Complete code can be found in this repository.
Any help is appreciated.