DMN-Eval-Plugin for Obsidian

This plugin lets you evaluate (execute) DMNs within your Obsidian notes. The DMN evaluator is based on the dmn-engine library by Camunda. If you want to view DMNs in your note, look at the DMN Plugin.

Install ..

.. automatically in Obsidian

1. Go to Community Plugins in your Obsidian Settings and disable Safe Mode
2. Click on Browse and search for "DMN Eval Plugin"
3. Click install
4. Toggle the plugin on in the Community Plugins tab
5. Important: You need Java 14 or later installed

.. manually from this repo

1. Download the latest release *.zip file.
2. Unpack the zip in the .obsidan/plugins folder of your obsidian vault
3. Important: You need Java 14 or later installed

Requirements

• Java 14 or later

How to use

1. Add a valid *.dmn file to your vault (e.g., my-diagram.dmn) (e.g., modeled with the Camunda Modeler).
2. Add the DMN to your note:

```dmn-eval
url: [[my-diagram.dmn]]
decisionId: Evaluator
variables:
  myValue1: 2
  myValue2: 3
```

3. All front matter data of your note are used as input for the DMN evaluation (in addition to the variables values).
4. If no errors occur, the output of the decision will be evaluated and printed to your note.

Parameter

You can customize the view with the following parameters:

Parameter	Description	Values
url	The url of the *.dmn file (required).	Relative/Absolute path, or [[*.dmn]] as markdown link.
decisionId	An ID (or Name) of a decision table to evaluate (required).	String value
title	An optional h1 rendered before the DMN output.	String value
title1	An optional h1 rendered before the DMN output.	String value
title2	An optional h2 rendered before the DMN output.	String value
title3	An optional h3 rendered before the DMN output.	String value
title4	An optional h4 rendered before the DMN output.	String value
title5	An optional h5 rendered before the DMN output.	String value
title6	An optional h6 rendered before the DMN output.	String value
text	An optional span text rendered before the DMN output.	String value
textafter	An optional span text rendered after the DMN output.	String value
noresultmessage	An optional message if the evaluation returns no result.	String value (Default: "No result")
variables	A map of variables used as input	YAML Object
template	Render the result in a template file. The template file is another markdown file and should contain {{result}} where the result of the DMN evaluation is parsed. Other variables and frontmatter variables can be referenced as well (e.g., {{variableX}}). Furthermore, the name of the result columns of the DMN can be used to print individual values (if the DMN returns more than one column). If the DMN returns multiple rows (Hit Policy collect), than the variables can be indexed, e.g., {{val1}}.	Relative/Absolute path, or [[...]] as markdown link.

Example

How to dev

1. Clone this repo into the plugin folder of a (non-productive) vault (.obsidian/plugins/)
2. Build DmnEvaluator (if changed):
   1. cd DmnEvaluator && mvn --batch-mode --update-snapshots package && cd ..
   2. cp DmnEvaluator/target/DmnEvaluator*-jar-with-dependencies.jar DmnEvaluator.jar
   3. Recreate the DmnEvaluator.ts
      • OSX: echo "export const dmnEvaluatorBase64 = '$(base64 -i DmnEvaluator.jar)';" > DmnEvaluator.ts
      • Linux: echo "export const dmnEvaluatorBase64 = '$(base64 -w 0 DmnEvaluator.jar)';" > DmnEvaluator.ts
3. npm i
4. npm run dev
5. Toggle the plugin on in the Community Plugins tab

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