Examples with DecisionModel io.automatiko.engine.api.decision.DecisionModel used on opensource projects

Example 1 with DecisionModel

use of io.automatiko.engine.api.decision.DecisionModel in project automatiko-engine by automatiko-io.

the class RuleSetNodeInstance method internalTrigger.

@SuppressWarnings({ "rawtypes", "unchecked" })
@Override
public void internalTrigger(final NodeInstance from, String type) {
    try {
        super.internalTrigger(from, type);
        // if node instance was cancelled, abort
        if (getNodeInstanceContainer().getNodeInstance(getId()) == null) {
            return;
        }
        if (!io.automatiko.engine.workflow.process.core.Node.CONNECTION_DEFAULT_TYPE.equals(type)) {
            throw new IllegalArgumentException("A RuleSetNode only accepts default incoming connections!");
        }
        RuleSetNode ruleSetNode = getRuleSetNode();
        Map<String, Object> inputs = evaluateParameters(ruleSetNode);
        RuleSetNode.RuleType ruleType = ruleSetNode.getRuleType();
        if (ruleType.isDecision()) {
            RuleSetNode.RuleType.Decision decisionModel = (RuleSetNode.RuleType.Decision) ruleType;
            String dName = resolveVariable(decisionModel.getDecision());
            DecisionModel modelInstance = getRuleSetNode().getDecisionModel().get();
            Object context = modelInstance.newContext(inputs);
            Object dmnResult = null;
            if (dName == null) {
                dmnResult = modelInstance.evaluateAll(context);
            } else if (decisionModel.isDecisionService()) {
                dmnResult = modelInstance.evaluateDecisionService(context, dName);
            } else {
                dmnResult = modelInstance.evaluateDecisionByName(context, dName);
            }
            if (modelInstance.hasErrors(dmnResult)) {
                throw new WorkItemExecutionError("DecisionEvaluationFailure", modelInstance.buildErrorMessage(dmnResult), modelInstance.getErrorData(dmnResult));
            }
            processOutputs(inputs, modelInstance.getResultData(dmnResult));
            triggerCompleted();
        } else {
            throw new UnsupportedOperationException("Unsupported Rule Type: " + ruleType);
        }
    } catch (Exception e) {
        handleException(e);
    }
}