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

This example takes the `value` field and converts it to a long.



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

    {
      "transforms" : "toLong",
      "transforms.toLong.type" : "com.github.jcustenborder.kafka.connect.transform.common.ToLong$Value",
      "transforms.toLong.fields" : "value"
    }

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

    {
      "topic" : "test",
      "kafkaPartition" : 1,
      "keySchema" : {
        "name" : "key",
        "type" : "STRUCT",
        "isOptional" : false,
        "fieldSchemas" : {
          "id" : {
            "type" : "INT64",
            "isOptional" : false
          }
        }
      },
      "key" : {
        "schema" : {
          "name" : "key",
          "type" : "STRUCT",
          "isOptional" : false,
          "fieldSchemas" : {
            "id" : {
              "type" : "INT64",
              "isOptional" : false
            }
          }
        },
        "fieldValues" : [ {
          "name" : "id",
          "schema" : {
            "type" : "INT64",
            "isOptional" : false
          },
          "storage" : 1234
        } ]
      },
      "valueSchema" : {
        "name" : "value",
        "type" : "STRUCT",
        "isOptional" : false,
        "fieldSchemas" : {
          "name" : {
            "type" : "STRING",
            "isOptional" : false
          },
          "value" : {
            "name" : "org.apache.kafka.connect.data.Decimal",
            "type" : "BYTES",
            "version" : 1,
            "parameters" : {
              "scale" : "2"
            },
            "isOptional" : false
          }
        }
      },
      "value" : {
        "schema" : {
          "name" : "value",
          "type" : "STRUCT",
          "isOptional" : false,
          "fieldSchemas" : {
            "name" : {
              "type" : "STRING",
              "isOptional" : false
            },
            "value" : {
              "name" : "org.apache.kafka.connect.data.Decimal",
              "type" : "BYTES",
              "version" : 1,
              "parameters" : {
                "scale" : "2"
              },
              "isOptional" : false
            }
          }
        },
        "fieldValues" : [ {
          "name" : "name",
          "schema" : {
            "type" : "STRING",
            "isOptional" : false
          },
          "storage" : "testing"
        }, {
          "name" : "value",
          "schema" : {
            "name" : "org.apache.kafka.connect.data.Decimal",
            "type" : "BYTES",
            "version" : 1,
            "parameters" : {
              "scale" : "2"
            },
            "isOptional" : false
          },
          "storage" : 12342.31
        } ]
      },
      "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: 46, 62, 77, 80

    {
      "topic" : "test",
      "kafkaPartition" : 1,
      "keySchema" : {
        "name" : "key",
        "type" : "STRUCT",
        "isOptional" : false,
        "fieldSchemas" : {
          "id" : {
            "type" : "INT64",
            "isOptional" : false
          }
        }
      },
      "key" : {
        "schema" : {
          "name" : "key",
          "type" : "STRUCT",
          "isOptional" : false,
          "fieldSchemas" : {
            "id" : {
              "type" : "INT64",
              "isOptional" : false
            }
          }
        },
        "fieldValues" : [ {
          "name" : "id",
          "schema" : {
            "type" : "INT64",
            "isOptional" : false
          },
          "storage" : 1234
        } ]
      },
      "valueSchema" : {
        "name" : "value",
        "type" : "STRUCT",
        "isOptional" : false,
        "fieldSchemas" : {
          "name" : {
            "type" : "STRING",
            "isOptional" : false
          },
          "value" : {
            "type" : "INT64",
            "isOptional" : false
          }
        }
      },
      "value" : {
        "schema" : {
          "name" : "value",
          "type" : "STRUCT",
          "isOptional" : false,
          "fieldSchemas" : {
            "name" : {
              "type" : "STRING",
              "isOptional" : false
            },
            "value" : {
              "type" : "INT64",
              "isOptional" : false
            }
          }
        },
        "fieldValues" : [ {
          "name" : "name",
          "schema" : {
            "type" : "STRING",
            "isOptional" : false
          },
          "storage" : "testing"
        }, {
          "name" : "value",
          "schema" : {
            "type" : "INT64",
            "isOptional" : false
          },
          "storage" : 12342
        } ]
      },
      "timestamp" : 1530286549123,
      "timestampType" : "CREATE_TIME",
      "offset" : 91283741,
      "headers" : [ ]
    }