append rows to csv file, using apache nifi

using Apache nifi 2.0.0, i don't see an option to append rows to an existing csv file.

My setup:

• some generator, creating a json-string with an array of records
• SplitJson to create single records
• ConvertRecord to read the json input and create csv records.
  • RecordReader: JsonTreeReader
  • RecordWriter: CSVRecordSetWriter
• UpdateAttribute to define the filename
• PutFile to write to the file.

Unfortunatly there is no 'append' option for the Conflict Resolution Strategy. So: how to append rows? Do I have to implement a TextAppender processor?

You can use the ReplaceText Processor in Nifi

Use the following Properties:

Replacement Strategy - Append

Replacement Value - Your Row value to insert

Evaluation Method- Entire text