Examples with EventListener org.kie.api.runtime.process.EventListener used on opensource projects

Example 1 with EventListener

use of org.kie.api.runtime.process.EventListener in project jbpm by kiegroup.

the class WorkflowProcessInstanceImpl method signalEvent.

@SuppressWarnings("unchecked")
public void signalEvent(String type, Object event) {
    logger.debug("Signal {} received with data {} in process instance {}", type, event, getId());
    synchronized (this) {
        if (getState() != ProcessInstance.STATE_ACTIVE) {
            return;
        }
        if ("timerTriggered".equals(type)) {
            TimerInstance timer = (TimerInstance) event;
            if (timer.getId() == slaTimerId) {
                handleSLAViolation();
                // no need to pass the event along as it was purely for SLA tracking
                return;
            }
        }
        if ("slaViolation".equals(type)) {
            handleSLAViolation();
            // no need to pass the event along as it was purely for SLA tracking
            return;
        }
        List<NodeInstance> currentView = new ArrayList<NodeInstance>(this.nodeInstances);
        try {
            this.activatingNodeIds = new ArrayList<String>();
            List<EventListener> listeners = eventListeners.get(type);
            if (listeners != null) {
                for (EventListener listener : listeners) {
                    listener.signalEvent(type, event);
                }
            }
            listeners = externalEventListeners.get(type);
            if (listeners != null) {
                for (EventListener listener : listeners) {
                    listener.signalEvent(type, event);
                }
            }
            for (Node node : getWorkflowProcess().getNodes()) {
                if (node instanceof EventNodeInterface) {
                    if (((EventNodeInterface) node).acceptsEvent(type, event, (e) -> resolveVariable(e))) {
                        if (node instanceof EventNode && ((EventNode) node).getFrom() == null) {
                            EventNodeInstance eventNodeInstance = (EventNodeInstance) getNodeInstance(node);
                            eventNodeInstance.signalEvent(type, event);
                        } else {
                            if (node instanceof EventSubProcessNode && ((resolveVariables(((EventSubProcessNode) node).getEvents()).contains(type)))) {
                                EventSubProcessNodeInstance eventNodeInstance = (EventSubProcessNodeInstance) getNodeInstance(node);
                                eventNodeInstance.signalEvent(type, event);
                            }
                            if (node instanceof DynamicNode && type.equals(((DynamicNode) node).getActivationEventName())) {
                                DynamicNodeInstance dynamicNodeInstance = (DynamicNodeInstance) getNodeInstance(node);
                                dynamicNodeInstance.signalEvent(type, event);
                            } else {
                                List<NodeInstance> nodeInstances = getNodeInstances(node.getId(), currentView);
                                if (nodeInstances != null && !nodeInstances.isEmpty()) {
                                    for (NodeInstance nodeInstance : nodeInstances) {
                                        ((EventNodeInstanceInterface) nodeInstance).signalEvent(type, event);
                                    }
                                }
                            }
                        }
                    }
                }
            }
            if (((org.jbpm.workflow.core.WorkflowProcess) getWorkflowProcess()).isDynamic()) {
                for (Node node : getWorkflowProcess().getNodes()) {
                    if (type.equals(node.getName()) && node.getIncomingConnections().isEmpty()) {
                        NodeInstance nodeInstance = getNodeInstance(node);
                        if (event != null) {
                            Map<String, Object> dynamicParams = new HashMap<>();
                            if (event instanceof Map) {
                                dynamicParams.putAll((Map<String, Object>) event);
                            } else {
                                dynamicParams.put("Data", event);
                            }
                            ((org.jbpm.workflow.instance.NodeInstance) nodeInstance).setDynamicParameters(dynamicParams);
                        }
                        ((org.jbpm.workflow.instance.NodeInstance) nodeInstance).trigger(null, NodeImpl.CONNECTION_DEFAULT_TYPE);
                    }
                }
            }
        } finally {
            if (this.activatingNodeIds != null) {
                this.activatingNodeIds.clear();
                this.activatingNodeIds = null;
            }
        }
    }
}