LOWER_HYPHEN to LOWER_UNDERSCORE

This example will convert the field names of a schema from upper underscore to lower underscore.

Configuration

{
  "transforms" : "changeTopicCase",
  "transforms.changeTopicCase.type" : "com.github.jcustenborder.kafka.connect.transform.common.ChangeTopicCase",
  "transforms.changeTopicCase.from" : "LOWER_HYPHEN",
  "transforms.changeTopicCase.to" : "LOWER_UNDERSCORE"
}

Input

{
  "topic" : "topic-name",
  "kafkaPartition" : 1,
  "timestampType" : "NO_TIMESTAMP_TYPE",
  "offset" : 12345,
  "headers" : [ ]
}

Change(s) in the output are emphasized if delta(s) are detected.

Output

{
  "topic" : "topic_name",
  "kafkaPartition" : 1,
  "timestampType" : "NO_TIMESTAMP_TYPE",
  "offset" : 12345,
  "headers" : [ ]
}