=======
Example
=======

This example takes the topic and adds it to the `topicName` field of the value.



.. code-block:: json
    :caption: Configuration

    {
      "transforms" : "topicNameToField",
      "transforms.topicNameToField.type" : "com.github.jcustenborder.kafka.connect.transform.common.TopicNameToField$Value",
      "transforms.topicNameToField.field" : "topicName"
    }

.. code-block:: json
    :caption: Input
    

    {
      "topic" : "testing",
      "kafkaPartition" : 1,
      "keySchema" : {
        "type" : "STRING",
        "isOptional" : false
      },
      "key" : "foo",
      "valueSchema" : {
        "type" : "STRUCT",
        "isOptional" : false,
        "fieldSchemas" : {
          "test" : {
            "type" : "STRING",
            "isOptional" : false
          }
        }
      },
      "value" : {
        "schema" : {
          "type" : "STRUCT",
          "isOptional" : false,
          "fieldSchemas" : {
            "test" : {
              "type" : "STRING",
              "isOptional" : false
            }
          }
        },
        "fieldValues" : [ {
          "name" : "test",
          "schema" : {
            "type" : "STRING",
            "isOptional" : false
          },
          "storage" : "test"
        } ]
      },
      "timestamp" : 1530286549123,
      "timestampType" : "CREATE_TIME",
      "offset" : 91283741,
      "headers" : [ ]
    }

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

.. code-block:: json
    :caption: Output
    :emphasize-lines: 16, 17, 18, 19, 20, 32, 33, 34, 35, 36, 47, 48, 49, 50, 51, 52, 53, 54

    {
      "topic" : "testing",
      "kafkaPartition" : 1,
      "keySchema" : {
        "type" : "STRING",
        "isOptional" : false
      },
      "key" : "foo",
      "valueSchema" : {
        "type" : "STRUCT",
        "isOptional" : false,
        "fieldSchemas" : {
          "test" : {
            "type" : "STRING",
            "isOptional" : false
          },
          "topicName" : {
            "doc" : "Topic name",
            "type" : "STRING",
            "isOptional" : false
          }
        }
      },
      "value" : {
        "schema" : {
          "type" : "STRUCT",
          "isOptional" : false,
          "fieldSchemas" : {
            "test" : {
              "type" : "STRING",
              "isOptional" : false
            },
            "topicName" : {
              "doc" : "Topic name",
              "type" : "STRING",
              "isOptional" : false
            }
          }
        },
        "fieldValues" : [ {
          "name" : "test",
          "schema" : {
            "type" : "STRING",
            "isOptional" : false
          },
          "storage" : "test"
        }, {
          "name" : "topicName",
          "schema" : {
            "doc" : "Topic name",
            "type" : "STRING",
            "isOptional" : false
          },
          "storage" : "testing"
        } ]
      },
      "timestamp" : 1530286549123,
      "timestampType" : "CREATE_TIME",
      "offset" : 91283741,
      "headers" : [ ]
    }