[STREAMPIPES-347] Add FieldRenamer JVM processor for multiple fields

• Type: New Feature
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Fix Version/s: post-1.0
• Component/s: Pipeline Elements
• Labels: newbie suggestion-postpone
• Assignee: Unassigned
• Reporter: Patrick Wiener
• Created: 16/Apr/21 13:36
• Updated: 26/Nov/22 14:25

Description

Context

Rename multiple events field at once.

{
  "time_stamp": 1234,
  "sensor_id": "sensor1",
  "sensor_measurement": 24.0
}

rename "sensor_id" -> "id", "sensor_measurement", "measurement": new event

{
  "time_stamp": 1234,
  "id": "sensor1",
  "measurement": 24.0
}

 Problem

Currently, we do have a FieldRenamer implemented using Flink wrapper, yet only allowing to rename one field at a time, i.e., renaming n fields requires a sequence of #n FieldRenamer processors. In addition, this option is unavailable when using lite version, i.e., standalone Java extensions.

Solution

Add FieldRenamer JVM processor using something like CollectionStaticProperty to allow arbitrary number of mappings, where a user can select a mapping property and add a new field name in a text field right next to it.

 

[EDIT]: There is a duplicate https://issues.apache.org/jira/browse/STREAMPIPES-338 

While this allows to rename single fields, it still does not support multi field renaming in one step.