Examples with ContextContainer io.automatiko.engine.workflow.base.core.ContextContainer used on opensource projects

Example 6 with ContextContainer

use of io.automatiko.engine.workflow.base.core.ContextContainer 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 ContextContainer

use of io.automatiko.engine.workflow.base.core.ContextContainer in project automatiko-engine by automatiko-io.

the class PropertyHandler method start.

@SuppressWarnings("unchecked")
public Object start(final String uri, final String localName, final Attributes attrs, final ExtensibleXmlParser parser) throws SAXException {
    parser.startElementBuilder(localName, attrs);
    final String id = attrs.getValue("id");
    final String name = attrs.getValue("name");
    final String itemSubjectRef = attrs.getValue("itemSubjectRef");
    Object parent = parser.getParent();
    if (parent instanceof ContextContainer) {
        ContextContainer contextContainer = (ContextContainer) parent;
        VariableScope variableScope = (VariableScope) contextContainer.getDefaultContext(VariableScope.VARIABLE_SCOPE);
        List variables = variableScope.getVariables();
        Variable variable = new Variable();
        variable.setId(id);
        // if name is given use it as variable name instead of id
        if (name != null && name.length() > 0) {
            variable.setName(name);
            variable.setMetaData(name, variable.getName());
        } else {
            variable.setName(id);
        }
        variable.setMetaData("ItemSubjectRef", itemSubjectRef);
        variable.setMetaData(id, variable.getName());
        variables.add(variable);
        ((ProcessBuildData) parser.getData()).setMetaData("Variable", variable);
        return variable;
    }
    return new Variable();
}

Example 8 with ContextContainer

use of io.automatiko.engine.workflow.base.core.ContextContainer in project automatiko-engine by automatiko-io.

the class ProcessInstanceManagementResource method getInstance.

@APIResponses(value = { @APIResponse(responseCode = "404", description = "In case of instance with given id was not found", content = @Content(mediaType = "application/json")), @APIResponse(responseCode = "200", description = "Process instance details", content = @Content(mediaType = "application/json")) })
@Operation(summary = "Returns process instance details for given instance id")
@SuppressWarnings("unchecked")
@GET
@Path("/{processId}/instances/{instanceId}")
@Produces(MediaType.APPLICATION_JSON)
public ProcessInstanceDetailsDTO getInstance(@Context UriInfo uriInfo, @Parameter(description = "Unique identifier of the process", required = true) @PathParam("processId") String processId, @Parameter(description = "Unique identifier of the instance", required = true) @PathParam("instanceId") String instanceId, @Parameter(description = "Status of the process instance", required = false, schema = @Schema(enumeration = { "active", "completed", "aborted", "error" })) @QueryParam("status") @DefaultValue("active") final String status, @Parameter(description = "User identifier as alternative autroization info", required = false, hidden = true) @QueryParam("user") final String user, @Parameter(description = "Groups as alternative autroization info", required = false, hidden = true) @QueryParam("group") final List<String> groups) {
    try {
        identitySupplier.buildIdentityProvider(user, groups);
        return UnitOfWorkExecutor.executeInUnitOfWork(application.unitOfWorkManager(), () -> {
            Process<?> process = processData.get(processId);
            Optional<ProcessInstance<?>> instance = (Optional<ProcessInstance<?>>) process.instances().findById(instanceId, mapStatus(status), ProcessInstanceReadMode.READ_ONLY);
            if (instance.isEmpty()) {
                throw new ProcessInstanceNotFoundException(instanceId);
            }
            ProcessInstance<?> pi = instance.get();
            ProcessInstanceDetailsDTO details = new ProcessInstanceDetailsDTO();
            String id = pi.id();
            if (pi.parentProcessInstanceId() != null) {
                id = pi.parentProcessInstanceId() + ":" + id;
            }
            details.setId(id);
            details.setProcessId(processId);
            details.setBusinessKey(pi.businessKey() == null ? "" : pi.businessKey());
            details.setDescription(pi.description());
            details.setState(pi.status());
            details.setFailed(pi.errors().isPresent());
            if (pi.errors().isPresent()) {
                details.setErrors(pi.errors().get().errors().stream().map(e -> new ErrorInfoDTO(e.failedNodeId(), e.errorId(), e.errorMessage(), e.errorDetails())).collect(Collectors.toList()));
            }
            details.setImage(uriInfo.getBaseUri().toString() + "management/processes/" + processId + "/instances/" + instanceId + "/image?status=" + reverseMapStatus(pi.status()));
            details.setTags(pi.tags().values());
            details.setVariables(pi.variables());
            details.setSubprocesses(pi.subprocesses().stream().map(spi -> new ProcessInstanceDTO(spi.id(), spi.businessKey(), spi.description(), spi.tags().values(), spi.errors().isPresent(), spi.process().id(), spi.status())).collect(Collectors.toList()));
            VariableScope variableScope = (VariableScope) ((ContextContainer) ((AbstractProcess<?>) process).process()).getDefaultContext(VariableScope.VARIABLE_SCOPE);
            details.setVersionedVariables(variableScope.getVariables().stream().filter(v -> v.hasTag(Variable.VERSIONED_TAG)).map(v -> v.getName()).collect(Collectors.toList()));
            return details;
        });
    } finally {
        IdentityProvider.set(null);
    }
}

Example 9 with ContextContainer

use of io.automatiko.engine.workflow.base.core.ContextContainer in project automatiko-engine by automatiko-io.

the class CompensationTest method addCompensationScope.

/*
	 * General HELPER methods
	 */
private void addCompensationScope(final Node node, final io.automatiko.engine.api.definition.process.NodeContainer parentContainer, final String compensationHandlerId) {
    ContextContainer contextContainer = (ContextContainer) parentContainer;
    CompensationScope scope = null;
    boolean addScope = false;
    if (contextContainer.getContexts(CompensationScope.COMPENSATION_SCOPE) == null) {
        addScope = true;
    } else {
        scope = (CompensationScope) contextContainer.getContexts(CompensationScope.COMPENSATION_SCOPE).get(0);
        if (scope == null) {
            addScope = true;
        }
    }
    if (addScope) {
        scope = new CompensationScope();
        contextContainer.addContext(scope);
        contextContainer.setDefaultContext(scope);
        scope.setContextContainer(contextContainer);
    }
    CompensationHandler handler = new CompensationHandler();
    handler.setNode(node);
    scope.setExceptionHandler(compensationHandlerId, handler);
    node.setMetaData("isForCompensation", Boolean.TRUE);
}

Example 10 with ContextContainer

use of io.automatiko.engine.workflow.base.core.ContextContainer in project automatiko-engine by automatiko-io.

the class AbstractNodeHandler method findVariable.

/**
 * Finds the right variable by its name to make sure that when given as id it
 * will be also matched
 *
 * @param variableName name or id of the variable
 * @param parser parser instance
 * @return returns found variable name or given 'variableName' otherwise
 */
protected String findVariable(String variableName, final ExtensibleXmlParser parser) {
    if (variableName == null) {
        return null;
    }
    List<?> parents = parser.getParents();
    for (Object parent : parents) {
        if (parent instanceof ContextContainer) {
            ContextContainer contextContainer = (ContextContainer) parent;
            VariableScope variableScope = (VariableScope) contextContainer.getDefaultContext(VariableScope.VARIABLE_SCOPE);
            return variableScope.getVariables().stream().filter(v -> v.matchByIdOrName(variableName)).map(v -> v.getName()).findFirst().orElse(variableName);
        }
    }
    return variableName;
}