Examples with EventTrigger io.automatiko.engine.workflow.process.core.node.EventTrigger used on opensource projects

Example 6 with EventTrigger

use of io.automatiko.engine.workflow.process.core.node.EventTrigger in project automatiko-engine by automatiko-io.

the class EventFilterHandler method end.

public Object end(final String uri, final String localName, final ExtensibleXmlParser parser) throws SAXException {
    final Element element = parser.endElementBuilder();
    Object parent = parser.getParent();
    final String type = element.getAttribute("type");
    emptyAttributeCheck(localName, "type", type, parser);
    if ("eventType".equals(type)) {
        final String eventType = element.getAttribute("eventType");
        emptyAttributeCheck(localName, "eventType", eventType, parser);
        EventTypeFilter eventTypeFilter = new EventTypeFilter();
        eventTypeFilter.setType(eventType);
        if (parent instanceof EventNode) {
            ((EventNode) parent).addEventFilter(eventTypeFilter);
        } else if (parent instanceof EventTrigger) {
            ((EventTrigger) parent).addEventFilter(eventTypeFilter);
        }
    } else {
        throw new IllegalArgumentException("Unknown event filter type: " + type);
    }
    return null;
}

Example 7 with EventTrigger

use of io.automatiko.engine.workflow.process.core.node.EventTrigger in project automatiko-engine by automatiko-io.

the class ExecutableProcessFactory method processEventSubprocessStartNode.

private void processEventSubprocessStartNode(ExecutableProcess process, StartNode subNode, EventSubProcessNode eventSubProcessNode, List<String> eventSubProcessHandlers) {
    List<Trigger> triggers = subNode.getTriggers();
    if (triggers != null) {
        for (Trigger trigger : triggers) {
            if (trigger instanceof EventTrigger) {
                final List<EventFilter> filters = ((EventTrigger) trigger).getEventFilters();
                for (EventFilter filter : filters) {
                    eventSubProcessNode.addEvent((EventTypeFilter) filter);
                    String type = ((EventTypeFilter) filter).getType();
                    if (type.startsWith("Error-") || type.startsWith("Escalation")) {
                        String faultCode = (String) subNode.getMetaData().get("FaultCode");
                        String replaceRegExp = "Error-|Escalation-";
                        final String signalType = type;
                        ExceptionScope exceptionScope = (ExceptionScope) ((ContextContainer) eventSubProcessNode.getParentContainer()).getDefaultContext(ExceptionScope.EXCEPTION_SCOPE);
                        if (exceptionScope == null) {
                            exceptionScope = new ExceptionScope();
                            ((ContextContainer) eventSubProcessNode.getParentContainer()).addContext(exceptionScope);
                            ((ContextContainer) eventSubProcessNode.getParentContainer()).setDefaultContext(exceptionScope);
                        }
                        String faultVariable = null;
                        if (trigger.getInAssociations() != null && !trigger.getInAssociations().isEmpty()) {
                            faultVariable = findVariable(trigger.getInAssociations().get(0).getSources().get(0), process.getVariableScope());
                        }
                        ActionExceptionHandler exceptionHandler = new ActionExceptionHandler();
                        ConsequenceAction action = new ConsequenceAction("java", "");
                        action.setMetaData("Action", new SignalProcessInstanceAction(signalType, faultVariable, SignalProcessInstanceAction.PROCESS_INSTANCE_SCOPE));
                        exceptionHandler.setAction(action);
                        exceptionHandler.setFaultVariable(faultVariable);
                        exceptionHandler.setRetryAfter((Integer) subNode.getMetaData().get("ErrorRetry"));
                        exceptionHandler.setRetryIncrement((Integer) subNode.getMetaData().get("ErrorRetryIncrement"));
                        if (subNode.getMetaData().get("ErrorRetryIncrementMultiplier") != null) {
                            exceptionHandler.setRetryIncrementMultiplier(((Number) subNode.getMetaData().get("ErrorRetryIncrementMultiplier")).floatValue());
                        }
                        exceptionHandler.setRetryLimit((Integer) subNode.getMetaData().get("ErrorRetryLimit"));
                        if (faultCode != null) {
                            String trimmedType = type.replaceFirst(replaceRegExp, "");
                            for (String error : trimmedType.split(",")) {
                                exceptionScope.setExceptionHandler(error, exceptionHandler);
                                eventSubProcessHandlers.add(error);
                            }
                        } else {
                            exceptionScope.setExceptionHandler(faultCode, exceptionHandler);
                        }
                    } else if (trigger instanceof ConstraintTrigger) {
                        ConstraintTrigger constraintTrigger = (ConstraintTrigger) trigger;
                        if (constraintTrigger.getConstraint() != null) {
                            EventTypeFilter eventTypeFilter = new EventTypeFilter();
                            eventTypeFilter.setType(type);
                            eventSubProcessNode.addEvent(eventTypeFilter);
                            eventSubProcessNode.addEvent("variableChanged");
                        }
                    }
                }
            }
        }
    }
}

Example 8 with EventTrigger

use of io.automatiko.engine.workflow.process.core.node.EventTrigger in project automatiko-engine by automatiko-io.

the class ProcessHandler method postProcessNodes.

private void postProcessNodes(ExecutableProcess process, NodeContainer container) {
    List<String> eventSubProcessHandlers = new ArrayList<String>();
    for (Node node : container.getNodes()) {
        if (node instanceof StartNode) {
            List<DataAssociation> associations = ((StartNode) node).getOutAssociations();
            if (associations != null) {
                for (DataAssociation da : associations) {
                    VariableScope scope = (VariableScope) process.getDefaultContext(VariableScope.VARIABLE_SCOPE);
                    Variable variable = scope.findVariable(da.getTarget());
                    if (variable != null) {
                        da.setTarget(variable.getName());
                    }
                }
            }
        } else if (node instanceof StateNode) {
            StateNode stateNode = (StateNode) node;
            String condition = (String) stateNode.getMetaData("Condition");
            stateNode.setCondition(context -> {
                return (boolean) MVEL.executeExpression(condition, context.getProcessInstance().getVariables());
            });
        } else if (node instanceof NodeContainer) {
            // prepare event sub process
            if (node instanceof EventSubProcessNode) {
                EventSubProcessNode eventSubProcessNode = (EventSubProcessNode) node;
                Node[] nodes = eventSubProcessNode.getNodes();
                for (Node subNode : nodes) {
                    // avoids cyclomatic complexity
                    if (subNode == null || !(subNode instanceof StartNode)) {
                        continue;
                    }
                    List<Trigger> triggers = ((StartNode) subNode).getTriggers();
                    if (triggers == null) {
                        continue;
                    }
                    for (Trigger trigger : triggers) {
                        if (trigger instanceof EventTrigger) {
                            final List<EventFilter> filters = ((EventTrigger) trigger).getEventFilters();
                            for (EventFilter filter : filters) {
                                if (filter instanceof EventTypeFilter) {
                                    eventSubProcessNode.addEvent((EventTypeFilter) filter);
                                    String type = ((EventTypeFilter) filter).getType();
                                    if (type.startsWith("Error-") || type.startsWith("Escalation")) {
                                        String faultCode = (String) subNode.getMetaData().get("FaultCode");
                                        String replaceRegExp = "Error-|Escalation-";
                                        final String signalType = type;
                                        ExceptionScope exceptionScope = (ExceptionScope) ((ContextContainer) eventSubProcessNode.getParentContainer()).getDefaultContext(ExceptionScope.EXCEPTION_SCOPE);
                                        if (exceptionScope == null) {
                                            exceptionScope = new ExceptionScope();
                                            ((ContextContainer) eventSubProcessNode.getParentContainer()).addContext(exceptionScope);
                                            ((ContextContainer) eventSubProcessNode.getParentContainer()).setDefaultContext(exceptionScope);
                                        }
                                        String faultVariable = null;
                                        if (trigger.getInAssociations() != null && !trigger.getInAssociations().isEmpty()) {
                                            faultVariable = findVariable(trigger.getInAssociations().get(0).getSources().get(0), process.getVariableScope());
                                        }
                                        ActionExceptionHandler exceptionHandler = new ActionExceptionHandler();
                                        ConsequenceAction action = new ConsequenceAction("java", "");
                                        action.setMetaData("Action", new SignalProcessInstanceAction(signalType, faultVariable, SignalProcessInstanceAction.PROCESS_INSTANCE_SCOPE));
                                        exceptionHandler.setAction(action);
                                        exceptionHandler.setFaultVariable(faultVariable);
                                        exceptionHandler.setRetryAfter((Integer) subNode.getMetaData().get("ErrorRetry"));
                                        exceptionHandler.setRetryIncrement((Integer) subNode.getMetaData().get("ErrorRetryIncrement"));
                                        if (subNode.getMetaData().get("ErrorRetryIncrementMultiplier") != null) {
                                            exceptionHandler.setRetryIncrementMultiplier(((Number) subNode.getMetaData().get("ErrorRetryIncrementMultiplier")).floatValue());
                                        }
                                        exceptionHandler.setRetryLimit((Integer) subNode.getMetaData().get("ErrorRetryLimit"));
                                        if (faultCode != null) {
                                            String trimmedType = type.replaceFirst(replaceRegExp, "");
                                            for (String error : trimmedType.split(",")) {
                                                exceptionScope.setExceptionHandler(error, exceptionHandler);
                                                eventSubProcessHandlers.add(error);
                                            }
                                        } else {
                                            exceptionScope.setExceptionHandler(faultCode, exceptionHandler);
                                        }
                                    } else if (type.equals("Compensation")) {
                                        // 1. Find the parent sub-process to this event sub-process
                                        NodeContainer parentSubProcess;
                                        NodeContainer subProcess = eventSubProcessNode.getParentContainer();
                                        Object isForCompensationObj = eventSubProcessNode.getMetaData("isForCompensation");
                                        if (isForCompensationObj == null) {
                                            eventSubProcessNode.setMetaData("isForCompensation", true);
                                            logger.warn("Overriding empty or false value of \"isForCompensation\" attribute on Event Sub-Process [" + eventSubProcessNode.getMetaData("UniqueId") + "] and setting it to true.");
                                        }
                                        if (subProcess instanceof ExecutableProcess) {
                                            // (instance)?!?
                                            throw new IllegalArgumentException("Compensation Event Sub-Processes at the process level are not supported.");
                                        }
                                        parentSubProcess = ((Node) subProcess).getParentContainer();
                                        // 2. The event filter (never fires, purely for dumping purposes) has
                                        // already been added
                                        // 3. Add compensation scope
                                        String compensationHandlerId = (String) ((CompositeNode) subProcess).getMetaData("UniqueId");
                                        addCompensationScope(process, eventSubProcessNode, parentSubProcess, compensationHandlerId);
                                    }
                                }
                            }
                        } else if (trigger instanceof ConstraintTrigger) {
                            ConstraintTrigger constraintTrigger = (ConstraintTrigger) trigger;
                            if (constraintTrigger.getConstraint() != null) {
                                String processId = ((ExecutableProcess) container).getId();
                                String type = "RuleFlowStateEventSubProcess-Event-" + processId + "-" + eventSubProcessNode.getUniqueId();
                                EventTypeFilter eventTypeFilter = new EventTypeFilter();
                                eventTypeFilter.setType(type);
                                eventSubProcessNode.addEvent(eventTypeFilter);
                                eventSubProcessNode.addEvent("variableChanged");
                                ((StartNode) subNode).setCondition(context -> {
                                    return (boolean) MVEL.executeExpression(constraintTrigger.getConstraint(), context.getProcessInstance().getVariables());
                                });
                            }
                        }
                    }
                }
            // for( Node subNode : nodes)
            }
            postProcessNodes(process, (NodeContainer) node);
        } else if (node instanceof EndNode) {
            handleIntermediateOrEndThrowCompensationEvent((EndNode) node);
        } else if (node instanceof ActionNode) {
            handleIntermediateOrEndThrowCompensationEvent((ActionNode) node);
        } else if (node instanceof EventNode) {
            final EventNode eventNode = (EventNode) node;
            if (!(eventNode instanceof BoundaryEventNode) && eventNode.getDefaultIncomingConnections().size() == 0) {
                throw new IllegalArgumentException("Event node '" + node.getName() + "' [" + node.getId() + "] has no incoming connection");
            }
        }
    }
    // handler
    for (Node node : container.getNodes()) {
        if (node instanceof FaultNode) {
            FaultNode faultNode = (FaultNode) node;
            if (eventSubProcessHandlers.contains(faultNode.getFaultName())) {
                faultNode.setTerminateParent(false);
            }
        }
    }
}

Example 9 with EventTrigger

use of io.automatiko.engine.workflow.process.core.node.EventTrigger in project automatiko-engine by automatiko-io.

the class StartEventHandler method addTriggerWithInMappings.

private void addTriggerWithInMappings(StartNode startNode, String triggerEventType) {
    EventTrigger trigger = new EventTrigger();
    EventTypeFilter eventFilter = new EventTypeFilter();
    eventFilter.setType(triggerEventType);
    trigger.addEventFilter(eventFilter);
    String mapping = (String) startNode.getMetaData("TriggerMapping");
    if (mapping != null) {
        trigger.addInMapping(mapping, startNode.getOutMapping(mapping));
    }
    startNode.addTrigger(trigger);
}

Example 10 with EventTrigger

use of io.automatiko.engine.workflow.process.core.node.EventTrigger in project automatiko-engine by automatiko-io.

the class StartEventHandler method writeNode.

@Override
public void writeNode(Node node, StringBuilder xmlDump, int metaDataType) {
    StartNode startNode = (StartNode) node;
    writeNode("startEvent", startNode, xmlDump, metaDataType);
    xmlDump.append(" isInterrupting=\"");
    if (startNode.isInterrupting()) {
        xmlDump.append("true");
    } else {
        xmlDump.append("false");
    }
    xmlDump.append("\">" + EOL);
    writeExtensionElements(startNode, xmlDump);
    List<Trigger> triggers = startNode.getTriggers();
    if (triggers != null) {
        if (triggers.size() > 1) {
            throw new IllegalArgumentException("Multiple start triggers not supported");
        }
        Trigger trigger = triggers.get(0);
        if (trigger instanceof ConstraintTrigger) {
            ConstraintTrigger constraintTrigger = (ConstraintTrigger) trigger;
            if (constraintTrigger.getHeader() == null) {
                xmlDump.append("      <conditionalEventDefinition>" + EOL);
                xmlDump.append("        <condition xsi:type=\"tFormalExpression\" language=\"" + XmlBPMNProcessDumper.RULE_LANGUAGE + "\">" + constraintTrigger.getConstraint() + "</condition>" + EOL);
                xmlDump.append("      </conditionalEventDefinition>" + EOL);
            }
        } else if (trigger instanceof EventTrigger) {
            EventTrigger eventTrigger = (EventTrigger) trigger;
            String mapping = null;
            String nameMapping = "event";
            if (!trigger.getInMappings().isEmpty()) {
                mapping = eventTrigger.getInMappings().keySet().iterator().next();
                nameMapping = eventTrigger.getInMappings().values().iterator().next();
            } else {
                mapping = (String) startNode.getMetaData("TriggerMapping");
            }
            if (mapping != null) {
                xmlDump.append("      <dataOutput id=\"_" + startNode.getId() + "_Output\" name=\"" + nameMapping + "\" />" + EOL + "      <dataOutputAssociation>" + EOL + "        <sourceRef>_" + startNode.getId() + "_Output</sourceRef>" + EOL + "        <targetRef>" + mapping + "</targetRef>" + EOL + "      </dataOutputAssociation>" + EOL);
            }
            String type = ((EventTypeFilter) eventTrigger.getEventFilters().get(0)).getType();
            if (type.startsWith("Message-")) {
                type = type.substring(8);
                xmlDump.append("      <messageEventDefinition messageRef=\"" + type + "\"/>" + EOL);
            } else if (type.startsWith("Error-")) {
                type = type.substring(6);
                String errorId = getErrorIdForErrorCode(type, startNode);
                xmlDump.append("      <errorEventDefinition errorRef=\"" + XmlBPMNProcessDumper.replaceIllegalCharsAttribute(errorId) + "\"/>" + EOL);
            } else if (type.startsWith("Escalation-")) {
                type = type.substring(11);
                xmlDump.append("      <escalationEventDefinition escalationRef=\"" + type + "\"/>" + EOL);
            } else if (type.equals("Compensation")) {
                xmlDump.append("      <compensateEventDefinition/>" + EOL);
            } else {
                xmlDump.append("      <signalEventDefinition signalRef=\"" + type + "\" />" + EOL);
            }
        } else {
            throw new IllegalArgumentException("Unsupported trigger type " + trigger);
        }
        if (startNode.getTimer() != null) {
            Timer timer = startNode.getTimer();
            xmlDump.append("      <timerEventDefinition>" + EOL);
            if (timer != null && (timer.getDelay() != null || timer.getDate() != null)) {
                if (timer.getTimeType() == Timer.TIME_DATE) {
                    xmlDump.append("        <timeDate xsi:type=\"tFormalExpression\">" + XmlDumper.replaceIllegalChars(timer.getDate()) + "</timeDate>" + EOL);
                } else if (timer.getTimeType() == Timer.TIME_DURATION) {
                    xmlDump.append("        <timeDuration xsi:type=\"tFormalExpression\">" + XmlDumper.replaceIllegalChars(timer.getDelay()) + "</timeDuration>" + EOL);
                } else if (timer.getTimeType() == Timer.TIME_CYCLE) {
                    if (timer.getPeriod() != null) {
                        xmlDump.append("        <timeCycle xsi:type=\"tFormalExpression\">" + XmlDumper.replaceIllegalChars(timer.getDelay()) + "###" + XmlDumper.replaceIllegalChars(timer.getPeriod()) + "</timeCycle>" + EOL);
                    } else {
                        xmlDump.append("        <timeCycle xsi:type=\"tFormalExpression\">" + XmlDumper.replaceIllegalChars(timer.getDelay()) + "</timeCycle>" + EOL);
                    }
                }
            }
            xmlDump.append("      </timerEventDefinition>" + EOL);
        }
    } else if (startNode.getTimer() != null) {
        Timer timer = startNode.getTimer();
        xmlDump.append("      <timerEventDefinition>" + EOL);
        if (timer != null && (timer.getDelay() != null || timer.getDate() != null)) {
            if (timer.getTimeType() == Timer.TIME_DATE) {
                xmlDump.append("        <timeDate xsi:type=\"tFormalExpression\">" + XmlDumper.replaceIllegalChars(timer.getDate()) + "</timeDate>" + EOL);
            } else if (timer.getTimeType() == Timer.TIME_DURATION) {
                xmlDump.append("        <timeDuration xsi:type=\"tFormalExpression\">" + XmlDumper.replaceIllegalChars(timer.getDelay()) + "</timeDuration>" + EOL);
            } else if (timer.getTimeType() == Timer.TIME_CYCLE) {
                if (timer.getPeriod() != null) {
                    xmlDump.append("        <timeCycle xsi:type=\"tFormalExpression\">" + XmlDumper.replaceIllegalChars(timer.getDelay()) + "###" + XmlDumper.replaceIllegalChars(timer.getPeriod()) + "</timeCycle>" + EOL);
                } else {
                    xmlDump.append("        <timeCycle xsi:type=\"tFormalExpression\">" + XmlDumper.replaceIllegalChars(timer.getDelay()) + "</timeCycle>" + EOL);
                }
            }
        }
        xmlDump.append("      </timerEventDefinition>" + EOL);
    }
    endNode("startEvent", xmlDump);
}