Unable to add current timestamp in Transformation Script for File Replay Adapter

[MichaelKoch11]

Hi,

I wanted to use the Transformation Script feature in the Adapter Editor to add the current timestamp as the event timestamp.
Like in teh doumentation the "processedAt" timestamp.

I'm testing this with the File Replay Adapter on StreamPipes 0.99-SNAPSHOT (all components are running the same version).

I tried both of the following transformation scripts:

function transform(event, out, ctx) {
    event.timestampNow = Date.now();
    out.collect(event);
}

and

function transform(event, out, ctx) {
    utils.addTimestamp(event, "timestampNow");
    out.collect(event);
}

In the Field Editor, I selected the newly added field (timestampNow) as the event timestamp.

However, when I start the adapter, I get the following error:

org.apache.streampipes.commons.exceptions.connect.AdapterException:
The timestamp field in the original input event must be numeric.
The file replay adapter requires a Unix timestamp to be present in the original input data.
Field: timestampNow, value: null

Is there something wrong with my transformation script, or is the File Replay Adapter validating the timestamp before the transformation script is executed?

If the latter is the case, is there another way to use the current time as the event timestamp for replayed events?