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

Example 6 with FaultNode

use of io.automatiko.engine.workflow.process.core.node.FaultNode 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 7 with FaultNode

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

the class XmlBPMNProcessDumper method visitEscalations.

protected void visitEscalations(Node[] nodes, StringBuilder xmlDump, List<String> escalations) {
    for (Node node : nodes) {
        if (node instanceof FaultNode) {
            FaultNode faultNode = (FaultNode) node;
            if (!faultNode.isTerminateParent()) {
                String escalationCode = faultNode.getFaultName();
                if (!escalations.contains(escalationCode)) {
                    escalations.add(escalationCode);
                    xmlDump.append("  <escalation id=\"" + XmlBPMNProcessDumper.replaceIllegalCharsAttribute(escalationCode) + "\" escalationCode=\"" + XmlBPMNProcessDumper.replaceIllegalCharsAttribute(escalationCode) + "\" />" + EOL);
                }
            }
        } else if (node instanceof ActionNode) {
            ActionNode actionNode = (ActionNode) node;
            if (actionNode.getAction() instanceof ConsequenceAction) {
                ConsequenceAction action = (ConsequenceAction) actionNode.getAction();
                if (action != null) {
                    String s = action.getConsequence();
                    if (s.startsWith("org.drools.core.process.instance.context.exception.ExceptionScopeInstance scopeInstance = (org.drools.core.process.instance.context.exception.ExceptionScopeInstance) ((org.drools.workflow.instance.NodeInstance) kcontext.getNodeInstance()).resolveContextInstance(org.drools.core.process.core.context.exception.ExceptionScope.EXCEPTION_SCOPE, \"")) {
                        s = s.substring(327);
                        String type = s.substring(0, s.indexOf("\""));
                        if (!escalations.contains(type)) {
                            escalations.add(type);
                            xmlDump.append("  <escalation id=\"" + XmlBPMNProcessDumper.replaceIllegalCharsAttribute(type) + "\" escalationCode=\"" + XmlBPMNProcessDumper.replaceIllegalCharsAttribute(type) + "\" />" + EOL);
                        }
                    }
                }
            } else {
                logger.warn("Cannot serialize custom implementation of the Action interface to XML");
            }
        } else if (node instanceof EventNode) {
            EventNode eventNode = (EventNode) node;
            String type = (String) eventNode.getMetaData("EscalationEvent");
            if (type != null) {
                if (!escalations.contains(type)) {
                    escalations.add(type);
                    xmlDump.append("  <escalation id=\"" + XmlBPMNProcessDumper.replaceIllegalCharsAttribute(type) + "\" escalationCode=\"" + XmlBPMNProcessDumper.replaceIllegalCharsAttribute(type) + "\" />" + EOL);
                }
            }
        }
        if (node instanceof CompositeNode) {
            visitEscalations(((CompositeNode) node).getNodes(), xmlDump, escalations);
        }
    }
}

Example 8 with FaultNode

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

the class FaultNodeHandler method writeNode.

public void writeNode(Node node, StringBuilder xmlDump, boolean includeMeta) {
    FaultNode faultNode = (FaultNode) node;
    writeNode("fault", faultNode, xmlDump, includeMeta);
    String faultName = faultNode.getFaultName();
    if (faultName != null && faultName.length() != 0) {
        xmlDump.append("faultName=\"" + faultName + "\" ");
    }
    String faultVariable = faultNode.getFaultVariable();
    if (faultVariable != null && faultVariable.length() != 0) {
        xmlDump.append("faultVariable=\"" + faultVariable + "\" ");
    }
    if (includeMeta && containsMetaData(faultNode)) {
        xmlDump.append(">" + EOL);
        writeMetaData(faultNode, xmlDump);
        endNode("fault", xmlDump);
    } else {
        endNode(xmlDump);
    }
}

Example 9 with FaultNode

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

the class FaultNodeHandler method handleNode.

public void handleNode(final Node node, final Element element, final String uri, final String localName, final ExtensibleXmlParser parser) throws SAXException {
    super.handleNode(node, element, uri, localName, parser);
    FaultNode faultNode = (FaultNode) node;
    String faultName = element.getAttribute("faultName");
    if (faultName != null && faultName.length() != 0) {
        faultNode.setFaultName(faultName);
    }
    String faultVariable = element.getAttribute("faultVariable");
    if (faultVariable != null && !"".equals(faultVariable)) {
        faultNode.setFaultVariable(faultVariable);
    }
}

Example 10 with FaultNode

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

the class EndEventHandler method end.

public Object end(final String uri, final String localName, final ExtensibleXmlParser parser) throws SAXException {
    final Element element = parser.endElementBuilder();
    Node node = (Node) parser.getCurrent();
    // determine type of event definition, so the correct type of node
    // can be generated
    super.handleNode(node, element, uri, localName, parser);
    org.w3c.dom.Node xmlNode = element.getFirstChild();
    while (xmlNode != null) {
        String nodeName = xmlNode.getNodeName();
        if ("terminateEventDefinition".equals(nodeName)) {
            // reuse already created EndNode
            handleTerminateNode(node, element, uri, localName, parser);
            node.setMetaData("functionFlowContinue", "true");
            break;
        } else if ("signalEventDefinition".equals(nodeName)) {
            handleSignalNode(node, element, uri, localName, parser);
            node.setMetaData("functionFlowContinue", "true");
        } else if ("messageEventDefinition".equals(nodeName)) {
            handleMessageNode(node, element, uri, localName, parser);
            node.setMetaData("functionFlowContinue", "true");
        } else if ("errorEventDefinition".equals(nodeName)) {
            // create new faultNode
            FaultNode faultNode = new FaultNode();
            faultNode.setId(node.getId());
            faultNode.setName(node.getName());
            faultNode.setTerminateParent(true);
            faultNode.setMetaData("UniqueId", node.getMetaData().get("UniqueId"));
            node = faultNode;
            super.handleNode(node, element, uri, localName, parser);
            handleErrorNode(node, element, uri, localName, parser);
            node.setMetaData("functionFlowContinue", "true");
            break;
        } else if ("escalationEventDefinition".equals(nodeName)) {
            // create new faultNode
            FaultNode faultNode = new FaultNode();
            faultNode.setId(node.getId());
            faultNode.setName(node.getName());
            faultNode.setMetaData("UniqueId", node.getMetaData().get("UniqueId"));
            node = faultNode;
            super.handleNode(node, element, uri, localName, parser);
            handleEscalationNode(node, element, uri, localName, parser);
            node.setMetaData("functionFlowContinue", "true");
            break;
        } else if ("compensateEventDefinition".equals(nodeName)) {
            // reuse already created ActionNode
            handleThrowCompensationEventNode(node, element, uri, localName, parser);
            node.setMetaData("functionFlowContinue", "true");
            break;
        }
        xmlNode = xmlNode.getNextSibling();
    }
    NodeContainer nodeContainer = (NodeContainer) parser.getParent();
    nodeContainer.addNode(node);
    ((ProcessBuildData) parser.getData()).addNode(node);
    return node;
}