Java action in StackStorm. Used https://code.google.com/p/json-simple/ DO NOT DELETE - used in blog.stackstorm.com

jaction.yaml

# /opt/stackstorm/packs/default/actions/jaction.yaml
---
name: jaction
description: Sample of running Java.
runner_type: "local-shell-cmd"
parameters:
  cmd:
    immutable: true
    default: "java MyApp {{p1}} {{p2}}"
  cwd:
    default: "/opt/stackstorm/packs/default/actions/"
    immutable: true
  env:
    default:
      CLASSPATH: lib/*:. 
  p1:
    type: "string"
    default: "do"
  p2:
    type: "string"
    default: "something"

MyApp.java

//opt/stackstorm/packs/default/actions/MyApp.java
// Used https://code.google.com/p/json-simple/, download and save as lib/json-simple-1.1.1.jar
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;

class MyApp
{
   public static void main(String[] args)
   {
      JSONObject obj = new JSONObject();
      JSONArray list = new JSONArray();

			for (String s: args) {
            list.add(s);
      }

      obj.put("description", "array of arguments");
      obj.put("args", list);

      System.out.print(obj);
      System.out.println();
   }
}

running_it

foo@bar:/opt/stackstorm/packs/default/actions$ st2 run default.jaction p1=do p2=something
.
id: 55d3c11b5b64c44adab13f5c
status: succeeded
result: 
{
    "succeeded": true, 
    "failed": false, 
    "return_code": 0, 
    "stderr": "", 
    "stdout": {
        "args": [
            "do", 
            "something"
        ], 
        "description": "array of arguments"
    }
}