Examples with ExceptionScope io.automatiko.engine.workflow.base.core.context.exception.ExceptionScope used on opensource projects

Example 6 with ExceptionScope

use of io.automatiko.engine.workflow.base.core.context.exception.ExceptionScope 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 ExceptionScope

use of io.automatiko.engine.workflow.base.core.context.exception.ExceptionScope in project automatiko-engine by automatiko-io.

the class XmlWorkflowProcessDumper method visitHeader.

protected void visitHeader(WorkflowProcess process, StringBuilder xmlDump, boolean includeMeta) {
    xmlDump.append("  <header>" + EOL);
    visitImports(((io.automatiko.engine.workflow.base.core.Process) process).getImports(), xmlDump);
    visitGlobals(((io.automatiko.engine.workflow.base.core.Process) process).getGlobals(), xmlDump);
    visitFunctionImports(((io.automatiko.engine.workflow.base.core.Process) process).getFunctionImports(), xmlDump);
    VariableScope variableScope = (VariableScope) ((io.automatiko.engine.workflow.base.core.Process) process).getDefaultContext(VariableScope.VARIABLE_SCOPE);
    if (variableScope != null) {
        visitVariables(variableScope.getVariables(), xmlDump);
    }
    SwimlaneContext swimlaneContext = (SwimlaneContext) ((io.automatiko.engine.workflow.base.core.Process) process).getDefaultContext(SwimlaneContext.SWIMLANE_SCOPE);
    if (swimlaneContext != null) {
        visitSwimlanes(swimlaneContext.getSwimlanes(), xmlDump);
    }
    ExceptionScope exceptionScope = (ExceptionScope) ((io.automatiko.engine.workflow.base.core.Process) process).getDefaultContext(ExceptionScope.EXCEPTION_SCOPE);
    if (exceptionScope != null) {
        visitExceptionHandlers(exceptionScope.getExceptionHandlers(), xmlDump);
    }
    xmlDump.append("  </header>" + EOL + EOL);
}

Example 8 with ExceptionScope

use of io.automatiko.engine.workflow.base.core.context.exception.ExceptionScope in project automatiko-engine by automatiko-io.

the class ProcessHandler method linkBoundaryErrorEvent.

protected void linkBoundaryErrorEvent(NodeContainer nodeContainer, Node node, String attachedTo, Node attachedNode) {
    ContextContainer compositeNode = (ContextContainer) attachedNode;
    ExceptionScope exceptionScope = (ExceptionScope) compositeNode.getDefaultContext(ExceptionScope.EXCEPTION_SCOPE);
    if (exceptionScope == null) {
        exceptionScope = new ExceptionScope();
        compositeNode.addContext(exceptionScope);
        compositeNode.setDefaultContext(exceptionScope);
    }
    String errorCode = (String) node.getMetaData().get("ErrorEvent");
    boolean hasErrorCode = (Boolean) node.getMetaData().get("HasErrorEvent");
    String errorStructureRef = (String) node.getMetaData().get("ErrorStructureRef");
    ActionExceptionHandler exceptionHandler = new ActionExceptionHandler();
    String variable = ((EventNode) node).getVariableName();
    ConsequenceAction action = createJavaAction(new SignalProcessInstanceAction("Error-" + attachedTo + "-" + errorCode, variable, SignalProcessInstanceAction.PROCESS_INSTANCE_SCOPE));
    exceptionHandler.setAction(action);
    exceptionHandler.setFaultVariable(variable);
    if (hasErrorCode) {
        for (String error : errorCode.split(",")) {
            exceptionScope.setExceptionHandler(error, exceptionHandler);
        }
    } else {
        exceptionScope.setExceptionHandler(null, exceptionHandler);
    }
    exceptionHandler.setRetryAfter((Integer) node.getMetaData().get("ErrorRetry"));
    exceptionHandler.setRetryLimit((Integer) node.getMetaData().get("ErrorRetryLimit"));
    exceptionHandler.setRetryIncrement((Integer) node.getMetaData().get("ErrorRetryIncrement"));
    if (node.getMetaData().get("ErrorRetryIncrementMultiplier") != null) {
        exceptionHandler.setRetryIncrementMultiplier(((Number) node.getMetaData().get("ErrorRetryIncrementMultiplier")).floatValue());
    }
    if (errorStructureRef != null) {
        exceptionScope.setExceptionHandler(errorStructureRef, exceptionHandler);
    }
    List<ProcessAction> actions = ((EventNode) node).getActions(EndNode.EVENT_NODE_EXIT);
    if (actions == null) {
        actions = new ArrayList<ProcessAction>();
    }
    ConsequenceAction cancelAction = new ConsequenceAction("java", null);
    cancelAction.setMetaData("Action", new CancelNodeInstanceAction(attachedTo));
    actions.add(cancelAction);
    ((EventNode) node).setActions(EndNode.EVENT_NODE_EXIT, actions);
}

Example 9 with ExceptionScope

use of io.automatiko.engine.workflow.base.core.context.exception.ExceptionScope in project automatiko-engine by automatiko-io.

the class CompositeContextNodeFactory method exceptionHandler.

public CompositeContextNodeFactory exceptionHandler(String exception, ExceptionHandler exceptionHandler) {
    ExceptionScope exceptionScope = (ExceptionScope) getCompositeNode().getDefaultContext(ExceptionScope.EXCEPTION_SCOPE);
    if (exceptionScope == null) {
        exceptionScope = new ExceptionScope();
        getCompositeNode().addContext(exceptionScope);
        getCompositeNode().setDefaultContext(exceptionScope);
    }
    for (String error : exception.split(",")) {
        exceptionScope.setExceptionHandler(error, exceptionHandler);
    }
    return this;
}