replace.md

Replace

Replace transform plugin

Description

Examines string value in a given field and replaces substring of the string value that matches the given string literal or regexes with the given replacement.

Options

name	type	required	default value
replace_field	string	yes
pattern	string	yes	-
replacement	string	yes	-
is_regex	boolean	no	false
replace_first	boolean	no	false

replace_field [string]

The field you want to replace

pattern [string]

The old string that will be replaced

replacement [string]

The new string for replace

is_regex [boolean]

Use regex for string match

replace_first [boolean]

Whether replace the first match string. Only used when is_regex = true.

common options [string]

Transform plugin common parameters, please refer to Transform Plugin for details

Example

The data read from source is a table like this:

name	age	card
Joy Ding	20	123
May Ding	20	123
Kin Dom	20	123
Joy Dom	20	123

We want to replace the char to _ at the name field. Then we can add a Replace Transform like this:

transform {
  Replace {
    source_table_name = "fake"
    result_table_name = "fake1"
    replace_field = "name"
    pattern = " "
    replacement = "_"
    is_regex = true
  }
}

Then the data in result table fake1 will update to

name	age	card
Joy_Ding	20	123
May_Ding	20	123
Kin_Dom	20	123
Joy_Dom	20	123

Job Config Example

env {
  job.mode = "BATCH"
}

source {
  FakeSource {
    result_table_name = "fake"
    row.num = 100
    schema = {
      fields {
        id = "int"
        name = "string"
      }
    }
  }
}

transform {
  Replace {
    source_table_name = "fake"
    result_table_name = "fake1"
    replace_field = "name"
    pattern = ".+"
    replacement = "b"
    is_regex = true
  }
}

sink {
  Console {
    source_table_name = "fake1"
  }
}

Changelog

new version

• Add Replace Transform Connector