How to output one data stream to different outputs depending on the data?

Question

In Apache Flink I have a stream of tuples. Let\'s assume a really simple Tuple1. The tuple can have an arbitrary value in it\'s value field (e.g. \'P1

Answer 1

You can implement a custom sink. Inherit from one of both:

• org.apache.flink.streaming.api.functions.sink.SinkFunction
• org.apache.flink.streaming.api.functions.sink.RichSinkFunction

In your program use:

stream.addSink(SinkFunction sinkFunction);

instead of stream.writeCsv("/output/somewhere").