Examples with EventNodeInstanceInterface io.automatiko.engine.workflow.process.instance.node.EventNodeInstanceInterface used on opensource projects

Example 1 with EventNodeInstanceInterface

use of io.automatiko.engine.workflow.process.instance.node.EventNodeInstanceInterface in project automatiko-engine by automatiko-io.

the class WorkflowProcessInstanceImpl method signalEvent.

@Override
@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;
        }
        InternalProcessRuntime processRuntime = getProcessRuntime();
        processRuntime.getProcessEventSupport().fireBeforeProcessSignaled(type, event, this, processRuntime);
        if ("timerTriggered".equals(type)) {
            TimerInstance timer = (TimerInstance) event;
            if (timer.getId().equals(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<>(this.nodeInstances);
        try {
            this.activatingNodeIds = new ArrayList<>();
            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);
                }
            }
            if (!type.startsWith("Compensation")) {
                for (Node node : getWorkflowProcess().getNodes()) {
                    if (node instanceof EventNodeInterface && ((EventNodeInterface) node).acceptsEvent(type, event, getResolver(node, currentView))) {
                        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);
                            } else {
                                List<NodeInstance> nodeInstances = getNodeInstances(node.getId(), currentView);
                                if (nodeInstances != null && !nodeInstances.isEmpty()) {
                                    for (NodeInstance nodeInstance : nodeInstances) {
                                        ((EventNodeInstanceInterface) nodeInstance).signalEvent(type, event);
                                    }
                                }
                            }
                        }
                    } else if (node instanceof StartNode && ((StartNode) node).getTriggers() != null) {
                        boolean accepted = ((StartNode) node).getTriggers().stream().filter(EventTrigger.class::isInstance).anyMatch(t -> ((EventTrigger) t).getEventFilters().stream().anyMatch(e -> e.acceptsEvent(type, event)));
                        if (accepted && node.getMetaData().get("acceptStartSignal") != null) {
                            StartNodeInstance startNodeInstance = (StartNodeInstance) getNodeInstance(node);
                            startNodeInstance.signalEvent(type, event);
                        }
                    }
                }
                if (((io.automatiko.engine.workflow.process.core.WorkflowProcess) getWorkflowProcess()).isDynamic()) {
                    for (Node node : getWorkflowProcess().getNodes()) {
                        if (node.hasMatchingEventListner(type) && node.getIncomingConnections().isEmpty()) {
                            NodeInstance nodeInstance = getNodeInstance(node);
                            if (nodeInstance != null) {
                                if (event != null) {
                                    Map<String, Object> dynamicParams = new HashMap<>(getVariables());
                                    if (event instanceof Map) {
                                        dynamicParams.putAll((Map<String, Object>) event);
                                    } else if (event instanceof WorkflowProcessInstance) {
                                    // ignore variables of process instance type
                                    } else {
                                        dynamicParams.put("Data", event);
                                    }
                                    nodeInstance.setDynamicParameters(dynamicParams);
                                }
                                nodeInstance.trigger(null, io.automatiko.engine.workflow.process.core.Node.CONNECTION_DEFAULT_TYPE);
                            }
                        } else if (this instanceof ExecutableProcessInstance && node instanceof CompositeNode) {
                            Optional<NodeInstance> instance = this.nodeInstances.stream().filter(ni -> ni.getNodeId() == node.getId()).findFirst();
                            instance.ifPresent(n -> ((CompositeNodeInstance) n).signalEvent(type, event));
                        }
                    }
                }
            }
        } finally {
            processRuntime.getProcessEventSupport().fireAfterProcessSignaled(type, event, this, processRuntime);
            if (this.activatingNodeIds != null) {
                this.activatingNodeIds.clear();
                this.activatingNodeIds = null;
            }
        }
    }
}