Field Renamer

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Description

The Field Renamer processor changes the name of fields in events. It supports:

• Single field renaming
• Custom field names
• Runtime name modification
• Field name standardization

This processor is essential for:

• Standardizing field names
• Creating consistent naming
• Mapping field identifiers
• Improving readability

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Required input

The processor requires a data stream containing at least one field to rename.

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Configuration

Field

Select the field to rename. This field's name will be changed in the output event.

New Field Name

Enter the new name for the selected field. This name will replace the original field name in the output event.

Output

The processor creates a new event containing:

• All original fields from the input event
• The selected field with its new name
• All field values remain unchanged

Example

Input Event

{
  "deviceId": "sensor01",
  "temp": 23.5,
  "humidity": 45.2,
  "timestamp": 1586380104915
}

Configuration

• Field: temp
• New Field Name: temperature

Output Event

{
  "deviceId": "sensor01",
  "temperature": 23.5,
  "humidity": 45.2,
  "timestamp": 1586380104915
}

Use Cases

1. Data Standardization

   • Standardize field names
   • Create naming conventions
   • Map field identifiers
   • Improve consistency

2. System Integration

   • Map field names
   • Standardize interfaces
   • Create consistency
   • Build mappings

Notes

• Only field names are changed
• Field values remain unchanged
• Original field order is preserved
• Processing is stateless
• Multiple renames require chaining