Measure writing guide: add section about I/O file + modernize by jmarrec · Pull Request #25 · NatLabRockies/OpenStudio-user-documentation

jmarrec · 2021-06-03T12:26:55Z

Measure writing guide: add section about I/O file + modernize

… of Ruleset

jmarrec · 2021-06-03T12:27:41Z

docs/reference/measure_writing_guide.md

+Please note the original namespace in versions of OpenStudio < 2.X `OpenStudio::Ruleset` is deprecated and replaced with `OpenStudio::Measure`.
+Measure classes prior to 2.X are also deprecated:
+
+| < 2.X (Deprecated)                       | >= 2.X                            |
+|------------------------------------------|-----------------------------------|
+| OpenStudio::Ruleset::ModelUserScript     | OpenStudio::Measure::ModelMeasure |
+| OpenStudio::Ruleset::WorkspaceUserScript | OpenStudio::Measure::ModelMeasure |


I did some changed re OpenStudio::Ruleset > OpenStudio::Measure

jmarrec · 2021-06-03T12:27:49Z

docs/reference/measure_writing_guide.md

+    args = OpenStudio::Measure::OSArgumentVector.new
+    insl_thckn = OpenStudio::Measure::makeDoubleArgument('insl_thckn',true)


One of many

jmarrec · 2021-06-03T12:28:02Z

docs/reference/measure_writing_guide.md

+### Reporting Measure arguments Method
+
+```ruby
+def arguments(model = nil)
+```
+


jmarrec · 2021-06-03T12:28:26Z

docs/reference/measure_writing_guide.md

+### Outputting a HTML (or other) file
+
+You can create any file in the current working directory named `report*.*` and it will be copied over to the `reports/` directory via the openstudio-workflow gem.
+The name of the resulting file is computed from the measure class name and the filename.
+
+If your measure class name is `ReportingMeasureName`:
+
+```ruby
+
+class ReportingMeasureName < OpenStudio::Measure::ReportingMeasure
+
+  [...]
+
+  def run(runner, user_arguments)
+    super(runner, user_arguments)
+
+    # Outputs to: reports/reporting_measure_name_report_one.html
+    File.open('./report_one.html', 'w') do |file|
+      # Write file
+    end
+
+    # Outputs to: reports/reporting_measure_name_qa_qc.csv
+    File.open('./qa_qc.csv', 'w') do |file|
+      # Write file
+    end
+  end
+end
+
+FooBar.new.registerWithApplication
+```
+
+


Document the classic case: output a report file from a ReportingMeasure.

jmarrec · 2021-06-03T12:29:25Z

docs/reference/measure_writing_guide.md

+## Using files and using ExternalFile in a measure
+
+It is sometimes needed to create support files in the process of running the measure. This section describes how path handling works in the context of a measure.
+
+When running a measure, the current working directory is something like './run/000_measure_class_name/' (this is the output that `File.realpath('./')` will give you).
+None of the files created in this directory will actually be copied over, unless it is the special case described in the section 'Reporting Measures' > 'Outputting an HTML (or other file)'.
+
+### Measure resource files
+
+#### Where to place them
+Resource files for a measure should be placed in the `resources/` subfolder like the Measure File Structure section indicates to do with additional ruby code.
+Note that nested levels are not accepted, meaning that given the below tree, anything in `resources/subfolder` is not valid: `anotherschedulefile.csv` will not be copied over with the measure.
+
+```
+├── measure.rb
+├── measure.xml
+├── resources
+│   ├── schedulefile.csv
+    │   ├── subfolder
+    │   │   ├── anotherschedulefile.csv
+```
+
+#### How to access them inside a measure
+
+You can locate your measure resources by using a relative path to the `measure.rb` you are running by using `File.join(File.dirname(__FILE__), 'schedulefile.csv')`
+
+#### How to use an ExternalFile inside a measure
+
+The constructor for `ExternalFile` will automatically copy the file at the path you provide to the first element in `WorkflowJSON::filePaths[0]`. When running a measure, the openstudio-workflow gem prepends the `generated_files` subdirectory.
+
+```ruby
+class CreateScheduleFile < OpenStudio::Measure::ModelMeasure
+
+  [...]
+
+  def run(model, runner, user_arguments)
+
+    # Locate the resource file (this resolves to something like './measures/resources/schedulefile.csv')
+    csv_in_path = File.join(File.dirname(__FILE__), 'schedulefile.csv')
+
+    # Instantiate an External File: this will automatically copy to first path in WorkflowJSON: `runner.workflow.filePaths[0]`, typically './generated_files/'
+    externalFile_ = OpenStudio::Model::ExternalFile::getExternalFile(model, csv_in_path)
+    if (!externalFile_)
+      runner.registerError("Failed to instantiate an External File")
+      return false
+    end
+
+    column = 1
+    rowsToSkip = 1
+    scheduleFile = OpenStudio::Model::ScheduleFile.new(externalFile_.get(), column, rowsToSkip)
+    scheduleFile.setName("ExampleScheduleFile")
+
+    return true
+end
+```


This section is fair game and general enough. I definitely think it should be added.

jmarrec · 2021-06-03T12:29:57Z

docs/reference/measure_writing_guide.md

+#### How to output any other file
+
+To output any file you may need that isn't an `ExternalFile`, you should rely on two things, in order of preferences:
+* `runner.workflow.filePaths[0]`: this will typically resolve to `./generated_files`
+* `runner.workflow.absoluteRootDir`: this will resolve to '.'
+
+`.` is the location defined as the `root` key inside the `workflow.osw`, or if not specified the location of the `workflow.osw` itself.


I find that relevant, but it's possible other people might not?

jmarrec · 2021-06-03T12:30:12Z

docs/reference/measure_writing_guide.md

+    # Locate the resource file (this resolves to something like './measures/resources/schedulefile.csv')
+    csv_in_path = File.join(File.dirname(__FILE__), 'schedulefile.csv')
+
+    # Canonical way: write to the ./generated_files directory
+    out_file = File.join(runner.workflow.filePaths[0].to_s, 'myfile.csv')
+    File.open(out_file, 'w') do |f|
+      f << "Hello"
+    end


I think that part is definitely fine.

jmarrec · 2021-06-03T12:31:57Z

docs/reference/measure_writing_guide.md

+    # Prefer the above, but one valid use case would be to output to the reports/ folder
+    # (this is a *ModelMeasure*, you cannot just name it './report.html'
+    # and have it copied automatically like described above in Reporting measure section)
+
+    # either /tmp/osmodel-1622719126-1/ApplyMeasureNow
+    # or ./<model_companion_dir>/
+    rootDir = runner.workflow.absoluteRootDir.to_s
+
+    html_out_path = 'report.html'
+    if (File.basename(rootDir) == 'ApplyMeasureNow')
+      html_out_path = File.absolute_path(
+        File.join(rootDir, '..', 'resources', 'reports', html_out_path))
+    else
+      html_out_path = File.absolute_path(
+        File.join(rootDir, 'reports', html_out_path))
+    end
+    outDir = File.dirname(html_out_path)
+    if !File.exists?(outDir)
+      FileUtils.mkdir_p(outDir)
+    end
+    File.open(html_out_path, 'w') do |f|
+      f << "<html><head><title>My Custom Report that works with Apply Now!</title></head><body><h1>Hello World!</h1></body></html>"
+    end


So perhaps this section is overkill or an invitation for bad ideas. I don't know. But people are definitely already doing stuff like this (cf discussion on NatLabRockies/OpenStudio#4046) except they are not doing it right for lack of documentation.

jmarrec · 2021-06-03T12:32:23Z

docs/reference/measure_writing_guide.md

+Regarding Note A in the above code, note that this is added to the `WorkflowStepResult` `step_files` entry (WorkflowJSON: root > "steps" [] > "result" > "step_files", see [Workflow JSON schema](https://github.com/NREL/OpenStudio-workflow-gem/blob/e569f910be364d33c3ddb1a655570c85f1b24bfa/spec/schema/osw_output.json#L251))
+
+It possible to capture the path to the stepFiles from a previous step inside a measure like the following:
+
+```ruby
+    if runner.workflow.currentStepIndex() > 0
+      previousStep = runner.workflow.workflowSteps[runner.workflow.currentStepIndex() - 1]
+      if previousStep.result
+        previousStepResult = previousStep.result.get
+        runner.registerWarning("previousStepResult.stepFiles=#{previousStepResult.stepFiles.map{|p| p.to_s}}")
+      end
+    end
+```


I don't have a good use case for this but perhaps @DavidGoldwasser might. I won't be offended if you don't lik that section

…e Template In conjunction with NatLabRockies/OpenStudio-user-documentation#25

tijcolem · 2021-06-21T15:54:15Z

@jmarrec Changes look good. Thanks for the updates. I just assigned this to myself. I'd like to build/convert the docs to html before merging to gh-pages branch.

tijcolem · 2021-06-21T16:26:02Z

Looks good served up locally using mkdocs.

jmarrec added 3 commits June 3, 2021 14:11

Add documentation for handling input/output files in measure

353e729

cf NatLabRockies/OpenStudio#4046

Update measure writing guide to use the new Measure namespace instead…

0ea28c1

… of Ruleset

bump toc for OS app (unrelated, but 1.2.0 is imminent)

d9d7ac8

jmarrec commented Jun 3, 2021

View reviewed changes

jmarrec added a commit to NatLabRockies/OpenStudio that referenced this pull request Jun 3, 2021

In conjunction with NatLabRockies/OpenStudio-user-documentation#25

0ca847e

jmarrec added a commit to NatLabRockies/OpenStudio that referenced this pull request Jun 3, 2021

#4046 - Clarify the situation with output file in the ReportingMeasur…

aae01b9

…e Template In conjunction with NatLabRockies/OpenStudio-user-documentation#25

This was referenced Jun 3, 2021

#4046 - Clarify the situation with output file in the ReportingMeasure Template NatLabRockies/OpenStudio#4345

Merged

Schedule CSV written in measure is not found NatLabRockies/OpenStudio#3609

Closed

tijcolem self-assigned this Jun 21, 2021

tijcolem merged commit 14154eb into NatLabRockies:master Jun 21, 2021

tijcolem added a commit that referenced this pull request Jun 21, 2021

Updated for #25

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Measure writing guide: add section about I/O file + modernize #25

Measure writing guide: add section about I/O file + modernize #25
tijcolem merged 3 commits intoNatLabRockies:masterfrom
jmarrec:4046_IO_Files_and_modernize

jmarrec commented Jun 3, 2021 •

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		args = OpenStudio::Measure::OSArgumentVector.new
		insl_thckn = OpenStudio::Measure::makeDoubleArgument('insl_thckn',true)

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tijcolem commented Jun 21, 2021

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jmarrec commented Jun 3, 2021 •

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