StreamName

This formatter prefixes data with the name of the current or previous stream.

Parameters

UsePrevious

Set to true to use the name of the previous stream. By default this parameter is set to false.

Separator (default: :)

Defines the separator string used between stream name and data. By default this parameter is set to “:”.

Parameters (from core.SimpleFormatter)

Source

This value chooses the part of the message the data to be formatted should be read from. Use “” to target the message payload; other values specify the name of a metadata field to target. By default this parameter is set to “”.

Target

This value chooses the part of the message the formatted data should be stored to. Use “” to target the message payload; other values specify the name of a metadata field to target. By default this parameter is set to “”.

ApplyTo

Use this to set Source and Target to the same value. This setting will be ignored if either Source or Target is set to something else but “”. By default this parameter is set to “”.

SkipIfEmpty

When set to true, this formatter will not be applied to data that is empty or - in case of metadata - not existing. By default this parameter is set to false

Examples

This example prefixes the message with the most recent routing history.

exampleProducer:
  Type: producer.Console
  Streams: "*"
  Modulators:
    - format.StreamName:
      Separator: ", "
      UsePrevious: true
    - format.StreamName:
      Separator: ": "