REGEX errors in log

Setup, Configuration and Use Scripts & Rules
1

Hi.
I don’t really know where to put this question, so someone please move it if it’s completely wrong :wink:

I sometimes get the following two warnings in my log and I have no idea why. To my knowledge I don’t use any regex stuff anywhere and hence I haven’t got the regex transformation installed (in fact, I have no transformation add’ons at all installed).

12:59:35.547 [WARN ] [.core.transform.TransformationHelper] - Cannot get service reference for transformation service of type REGEX
12:59:35.553 [WARN ] [hab.binding.exec.handler.ExecHandler] - Couldn't transform response because transformationService of type 'REGEX' is unavailable

Any way of finding out what it tries to do?

2

Looks like it’s coming from the exec binding. Examine your items that are using that binding.

3

I only have one exec item and it’s declared as

String smstext "[%s]" (All) {channel="exec:command:sendsms:input"}

In fact the errors always seem to come some seconds after the abovementioned item’s content is changed. Does it use regex in some way that I don’t understand?

4

How is your Thing defined?

I suppose it is possible that it defaults the transform to REGEX((.*)) when one isn’t supplied. It seems bad to me to have a hidden dependency like this if it is indeed the source of the warning.

The “fixes” for the warning seem obvious:

  • install the REGEX transformation
  • use some other transform in the Thing

Though a real fix would be to remove the hidden dependency or at least document it prominently in the readme.

5

Yep, that’s kinda why I’m dragging this up. Guess I could simply install the regex transformation but then I would never know exactly what was wrong :slight_smile:

The Thing is defined like this:

Thing exec:command:sendsms [command="/usr/local/bin/sendnexmosms %2$s", interval=0, autorun=true]