You can make use of the Python libraries mentioned in the second url

https://docs.safe.com/fme/2016.1/html/FME_Desktop_Documentation/FME_QuickTranslator/Workbench/Installing-Python-Packages.htm

@zacharylee_1204​  The OSM Opening Hours standard is definitely complex. We have found a good validation tool is the tool Java at https://openingh.openstreetmap.de/opening_hours.js/. You can down load the Javascript from this site or GitHUB. The JavaScriptCaller was deprecated in FME 2019 so instead we have hosted the javascript as a service on Amazon. I've attached an example workspace that has a custom transformer that uses this service.

​Thank you Mark. I would like to take your suggestion to use the Javascript from GitHUB. May I ask which file I should use as there are so many files in there.

Thank you.

Hi @zacharylee_1204​,

The opening_hours.js library is designed to be used in a web app. I used the following procedure to set it up on a very small (and inexpensive) Amazon Web Services EC2 Linux instance:

To set up validation:

• Install Node.js as per: https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/setting-up-node-on-ec2-instance.html
• using npm, install express and opening_hours
• use vi to create validate.js, to match the code shown below (cutting and pasting into vi is a lot easier than uploading a file)

To start validation service:

• ssh to instance
• 'node validate.js' to start validation service
• Ctrl-Z to suspend, then 'bg %1' to move the validation to background.
• 'exit' ssh, then close terminal

To use service, send the following request:

http://<instance name>:3000/validate?hours=24/7

The service will return 'passed' for a valid opening hours string, and the opening_hours.js error details for an invalid string

Validate.js:

var express = require('express');
var app = express();
var opening_hours = require('opening_hours');
 
app.get('/validate', function (req, res) {
  try
  {
    oh_string = req.query.hours;
    var test = new opening_hours(oh_string);
    res.send("passed");
  }
  catch(err)
  {
    res.send(err);
  }
    
})
 
app.listen(3000);

Thank you very much! Will try it! :)