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Can you return an OpenStudio runner print from a resource file?

asked 2015-10-30 06:40:01 -0500

updated 2015-10-30 06:41:21 -0500

I'm writing a measure that has a resource file that adds some methods to the OpenStudio::Model class.

Let's assume this is the entire content of resources/MyHelper.rb:

 class OpenStudio::Model::Model
    def helloworld()
      puts "Hello World!"
    end
end

In the measure.rb:

require_relative 'resources/MyHelper'
model.helloworld

How can I modify the MyHelper.rb so that instead of doing a puts statement it basically does a runner.registerInfo("Hello World!")?

Am I forced to pass the runner as an argument to each function of MyHelper.rb that needs to use it?

Also, I've seen the OpenStudio::logFree method, but I'm not sure what its purpose is and how to use it.

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answered 2015-10-30 09:34:53 -0500

The OpenStudio logging system is more for logging from within the C++, it isn't for logging in measures, that is what the runner is for. I suppose you could extend Model to have an instance variable @runner so you could set the runner on the model and then use it in all your functions. I'd prefer to just pass the runner in to each function though.

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Passing the runner in as an argument is what I have used and it works well. The one thing to be careful of is using runner.registerAsNotApplicable or runner.registerError in a a helper method. The "return true" or "return false" doesn't stop the top level measure.rb from running. If I use that method after it runs I add a few lines of code in measure.rb to check if it was an error or NA as shown below (check below is just for error, not NA)

# get sql, model, and web assets
setup = OsLib_Reporting.setup(runner)
unless setup
  return false
end
David Goldwasser gravatar image David Goldwasser  ( 2015-10-30 11:13:55 -0500 )edit

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Asked: 2015-10-30 06:40:01 -0500

Seen: 65 times

Last updated: Oct 30 '15