[jira] [Created] (NIFI-4240) Setting value.deserializer and key.deserializer in consume kafka

[JIRA]

Michał Terbert created NIFI-4240:
------------------------------------

             Summary: Setting value.deserializer and key.deserializer in 
consume kafka 
                 Key: NIFI-4240
                 URL: https://issues.apache.org/jira/browse/NIFI-4240
             Project: Apache NiFi
          Issue Type: Bug
          Components: Extensions
    Affects Versions: 1.3.0
            Reporter: Michał Terbert


We can not set in Kafka Consumer Processor key.deserilzer or value.deserilizer:
{quote}Key/value De-Serializer must be ByteArrayDeserializer.class{quote}

After prepare our custom class based on ByteArrayDeserializer we can not still 
use them.

Workaround:
Modify KafkaProcessorUtils.java:
Comment below lines:

{code:java}
 // final String keyDeSerializer = validationContext.getProperty(new 
PropertyDescriptor.Builder().name(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG).build()).getValue();
        // if (keyDeSerializer != null && 
!ByteArrayDeserializer.class.getName().equals(keyDeSerializer)) {
        //     results.add(new 
ValidationResult.Builder().subject(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG)
        //             .explanation("Key De-Serializer must be '" + 
ByteArrayDeserializer.class.getName() + "' was '" + keyDeSerializer + 
"'").build());
        // }

        // final String valueDeSerializer = validationContext.getProperty(new 
PropertyDescriptor.Builder().name(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG).build()).getValue();
        // if (valueDeSerializer != null && 
!ByteArrayDeserializer.class.getName().equals(valueDeSerializer)) {
        //     results.add(new 
ValidationResult.Builder().subject(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG)
        //             .explanation("Value De-Serializer must be " + 
ByteArrayDeserializer.class.getName() + "' was '" + valueDeSerializer + 
"'").build());
        // }
{code}




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