Example

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

Configuration

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

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.

Output

{
  "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" : [ ]
}