Decision nodes exercise

The idea of this exercise is a user to  put a numeric value at the start of the work flow and then in next form try to guess the number.

To do it you should:

• Create two forms with inputs value, one to put the value and other to guess the number.
• Create a task where to guess the number and assign task to actor "okmAdmin".
• Create a decision node where to decide if user "okmAdmin" has guessed the number.

Diagram

Resources

File forms.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE workflow-forms PUBLIC "-//OpenKM//DTD Workflow Forms 2.1//EN"
                                "http://www.openkm.com/dtd/workflow-forms-2.1.dtd">
<workflow-forms>
  <workflow-form task="run_config">
    <input label="number" name="number" />
    <button name="submit" label="Submit" />
  </workflow-form>
  <workflow-form task="task">
  	<input label="suggested" name="suggested" />
    <button name="submit" label="Submit" />
  </workflow-form>
</workflow-forms>

File Decision.java

package com.openkm.workflow.exercise.exercise5;
 
import org.jbpm.graph.exe.ExecutionContext;
import org.jbpm.graph.node.DecisionHandler;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
 
import com.openkm.bean.form.Input;
 
public class Decision implements DecisionHandler {
    private static final long serialVersionUID = 1L;
    private static Logger log = LoggerFactory.getLogger(Decision.class);
 
    @Override
    public String decide(ExecutionContext executionContext) throws Exception {
        log.info("Decision being evaluated");
        Input number = (Input) executionContext.getContextInstance().getVariable("number");
        Input suggested = (Input) executionContext.getContextInstance().getVariable("suggested");
 
        if (number != null && suggested != null && number.getValue().equals(suggested.getValue())) {
            log.info("Go to 'good'");
            return "good";
        } else {
            log.info("Go to 'bad'");
            return "bad";
        }
    }
}