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

Example 11 with WorkItemNode

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

the class WorkItemNodeInstance method triggerCompleted.

@SuppressWarnings({ "unchecked", "rawtypes" })
public void triggerCompleted(WorkItem workItem) {
    this.workItem = workItem;
    WorkItemNode workItemNode = getWorkItemNode();
    if (workItemNode != null && workItem.getState() == WorkItem.ABORTED) {
        cancel();
        continueToNextNode(io.automatiko.engine.workflow.process.core.Node.CONNECTION_DEFAULT_TYPE, workItemNode);
        return;
    } else if (workItemNode != null && workItem.getState() == WorkItem.COMPLETED) {
        validateWorkItemResultVariable(getProcessInstance().getProcessName(), workItemNode.getOutAssociations(), workItem);
        for (Iterator<DataAssociation> iterator = getWorkItemNode().getOutAssociations().iterator(); iterator.hasNext(); ) {
            DataAssociation association = iterator.next();
            if (association.getTransformation() != null) {
                Transformation transformation = association.getTransformation();
                DataTransformer transformer = DataTransformerRegistry.get().find(transformation.getLanguage());
                if (transformer != null) {
                    Map<String, Object> dataSet = new HashMap<String, Object>();
                    if (getNodeInstanceContainer() instanceof CompositeContextNodeInstance) {
                        VariableScopeInstance variableScopeInstance = (VariableScopeInstance) ((CompositeContextNodeInstance) getNodeInstanceContainer()).getContextInstance(VariableScope.VARIABLE_SCOPE);
                        if (variableScopeInstance != null) {
                            dataSet.putAll(variableScopeInstance.getVariables());
                        }
                    }
                    dataSet.putAll(workItem.getParameters());
                    dataSet.putAll(workItem.getResults());
                    Object parameterValue = transformer.transform(transformation.getCompiledExpression(), dataSet);
                    VariableScopeInstance variableScopeInstance = (VariableScopeInstance) resolveContextInstance(VARIABLE_SCOPE, association.getTarget());
                    if (variableScopeInstance != null && parameterValue != null) {
                        variableScopeInstance.getVariableScope().validateVariable(getProcessInstance().getProcessName(), association.getTarget(), parameterValue);
                        variableScopeInstance.setVariable(this, association.getTarget(), parameterValue);
                    } else {
                        logger.warn("Could not find variable scope for variable {}", association.getTarget());
                        logger.warn("when trying to complete Work Item {}", workItem.getName());
                        logger.warn("Continuing without setting variable.");
                    }
                    if (parameterValue != null) {
                        ((WorkItemImpl) workItem).setParameter(association.getTarget(), parameterValue);
                    }
                }
            } else if (association.getAssignments() == null || association.getAssignments().isEmpty()) {
                VariableScopeInstance variableScopeInstance = (VariableScopeInstance) resolveContextInstance(VARIABLE_SCOPE, association.getTarget());
                if (variableScopeInstance != null) {
                    Object value = workItem.getResult(association.getSources().get(0));
                    if (value == null) {
                        try {
                            ExpressionEvaluator evaluator = (ExpressionEvaluator) ((WorkflowProcess) getProcessInstance().getProcess()).getDefaultContext(ExpressionEvaluator.EXPRESSION_EVALUATOR);
                            value = evaluator.evaluate(association.getSources().get(0), new WorkItemResolverFactory(workItem));
                        } catch (Throwable t) {
                        // do nothing
                        }
                    }
                    Variable varDef = variableScopeInstance.getVariableScope().findVariable(association.getTarget());
                    DataType dataType = varDef.getType();
                    // exclude java.lang.Object as it is considered unknown type
                    if (!dataType.getStringType().endsWith("java.lang.Object") && !dataType.getStringType().endsWith("Object") && value instanceof String) {
                        value = dataType.readValue((String) value);
                    } else {
                        variableScopeInstance.getVariableScope().validateVariable(getProcessInstance().getProcessName(), association.getTarget(), value);
                    }
                    variableScopeInstance.setVariable(this, association.getTarget(), value);
                } else {
                    String output = association.getSources().get(0);
                    String target = association.getTarget();
                    Matcher matcher = PatternConstants.PARAMETER_MATCHER.matcher(target);
                    if (matcher.find()) {
                        String paramName = matcher.group(1);
                        String expression = VariableUtil.transformDotNotation(paramName, output);
                        NodeInstanceResolverFactory resolver = new NodeInstanceResolverFactory(this);
                        resolver.addExtraParameters(workItem.getResults());
                        Serializable compiled = MVEL.compileExpression(expression);
                        MVEL.executeExpression(compiled, resolver);
                        String varName = VariableUtil.nameFromDotNotation(paramName);
                        variableScopeInstance = (VariableScopeInstance) resolveContextInstance(VARIABLE_SCOPE, varName);
                        variableScopeInstance.setVariable(this, varName, variableScopeInstance.getVariable(varName));
                    } else {
                        logger.warn("Could not find variable scope for variable {}", association.getTarget());
                        logger.warn("when trying to complete Work Item {}", workItem.getName());
                        logger.warn("Continuing without setting variable.");
                    }
                }
            } else {
                try {
                    association.getAssignments().forEach(this::handleAssignment);
                } catch (Exception e) {
                    throw new RuntimeException(e);
                }
            }
        }
    }
    // handle dynamic nodes
    if (getNode() == null) {
        setMetaData("NodeType", workItem.getName());
        mapDynamicOutputData(workItem.getResults());
    }
    triggerCompleted();
}

Example 12 with WorkItemNode

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

the class WorkItemTest method getWorkItemProcess.

private ExecutableProcess getWorkItemProcess(String processId, String workName) {
    ExecutableProcess process = new ExecutableProcess();
    process.setId(processId);
    List<Variable> variables = new ArrayList<Variable>();
    Variable variable = new Variable();
    variable.setName("UserName");
    variable.setType(new StringDataType());
    variables.add(variable);
    variable = new Variable();
    variable.setName("Person");
    variable.setType(new ObjectDataType(Person.class));
    variables.add(variable);
    variable = new Variable();
    variable.setName("MyObject");
    variable.setType(new ObjectDataType());
    variables.add(variable);
    variable = new Variable();
    variable.setName("Number");
    variable.setType(new IntegerDataType());
    variables.add(variable);
    process.getVariableScope().setVariables(variables);
    StartNode startNode = new StartNode();
    startNode.setName("Start");
    startNode.setId(1);
    WorkItemNode workItemNode = new WorkItemNode();
    workItemNode.setName("workItemNode");
    workItemNode.setId(2);
    workItemNode.addInMapping("Comment", "Person.name");
    workItemNode.addInMapping("Attachment", "MyObject");
    workItemNode.addOutMapping("Result", "MyObject");
    workItemNode.addOutMapping("Result.length()", "Number");
    Work work = new WorkImpl();
    work.setName(workName);
    Set<ParameterDefinition> parameterDefinitions = new HashSet<ParameterDefinition>();
    ParameterDefinition parameterDefinition = new ParameterDefinitionImpl("ActorId", new StringDataType());
    parameterDefinitions.add(parameterDefinition);
    parameterDefinition = new ParameterDefinitionImpl("Content", new StringDataType());
    parameterDefinitions.add(parameterDefinition);
    parameterDefinition = new ParameterDefinitionImpl("Comment", new StringDataType());
    parameterDefinitions.add(parameterDefinition);
    work.setParameterDefinitions(parameterDefinitions);
    work.setParameter("ActorId", "#{UserName}");
    work.setParameter("Content", "#{Person.name}");
    workItemNode.setWork(work);
    EndNode endNode = new EndNode();
    endNode.setName("End");
    endNode.setId(3);
    connect(startNode, workItemNode);
    connect(workItemNode, endNode);
    process.addNode(startNode);
    process.addNode(workItemNode);
    process.addNode(endNode);
    return process;
}

Example 13 with WorkItemNode

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

the class NodeCreator method createNode.

public T createNode(String name) throws Exception {
    T result = this.constructor.newInstance(new Object[0]);
    result.setId(idGen++);
    result.setName(name);
    this.nodeContainer.addNode(result);
    if (result instanceof WorkItemNode) {
        Work work = new WorkImpl();
        ((WorkItemNode) result).setWork(work);
    }
    return result;
}

Example 14 with WorkItemNode

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

the class CompensationTest method createNestedCompensationEventSubProcessProcess.

private ExecutableProcess createNestedCompensationEventSubProcessProcess(String processId, String[] workItemNames, final List<String> eventList) throws Exception {
    ExecutableProcess process = new ExecutableProcess();
    process.setAutoComplete(true);
    process.setId(processId);
    process.setName("CESP Process");
    process.setMetaData("Compensation", true);
    NodeCreator<StartNode> startNodeCreator = new NodeCreator<StartNode>(process, StartNode.class);
    NodeCreator<WorkItemNode> workItemNodeCreator = new NodeCreator<WorkItemNode>(process, WorkItemNode.class);
    NodeCreator<CompositeContextNode> compNodeCreator = new NodeCreator<CompositeContextNode>(process, CompositeContextNode.class);
    NodeCreator<EndNode> endNodeCreator = new NodeCreator<EndNode>(process, EndNode.class);
    // outer process
    CompositeContextNode compositeNode = compNodeCreator.createNode("sub0");
    {
        StartNode startNode = startNodeCreator.createNode("start0");
        WorkItemNode workItemNode = workItemNodeCreator.createNode("work0-pre");
        workItemNode.getWork().setName(workItemNames[0]);
        connect(startNode, workItemNode);
        connect(workItemNode, compositeNode);
        EndNode endNode = endNodeCreator.createNode("end0");
        connect(compositeNode, endNode);
    }
    // 1rst level nested subprocess (contains compensation visibility scope)
    CompositeContextNode compensationScopeContainerNode = compositeNode;
    {
        startNodeCreator.setNodeContainer(compositeNode);
        workItemNodeCreator.setNodeContainer(compositeNode);
        compNodeCreator.setNodeContainer(compositeNode);
        endNodeCreator.setNodeContainer(compositeNode);
        StartNode startNode = startNodeCreator.createNode("start1");
        CompositeContextNode subCompNode = compNodeCreator.createNode("sub1");
        connect(startNode, subCompNode);
        WorkItemNode workItemNode = workItemNodeCreator.createNode("work1-post");
        workItemNode.getWork().setName(workItemNames[2]);
        connect(subCompNode, workItemNode);
        EndNode endNode = endNodeCreator.createNode("end1");
        connect(workItemNode, endNode);
        compositeNode = subCompNode;
    }
    // 2nd level nested subprocess
    {
        startNodeCreator.setNodeContainer(compositeNode);
        workItemNodeCreator.setNodeContainer(compositeNode);
        endNodeCreator.setNodeContainer(compositeNode);
        StartNode startNode = startNodeCreator.createNode("start2");
        WorkItemNode workItemNode = workItemNodeCreator.createNode("work2");
        workItemNode.getWork().setName(workItemNames[1]);
        connect(startNode, workItemNode);
        EndNode endNode = endNodeCreator.createNode("end2");
        connect(workItemNode, endNode);
    }
    // 3nd level nested event subprocess in 2nd level subprocess
    {
        NodeCreator<EventSubProcessNode> espNodeCreator = new NodeCreator<EventSubProcessNode>(compositeNode, EventSubProcessNode.class);
        EventSubProcessNode espNode = espNodeCreator.createNode("eventSub2");
        startNodeCreator.setNodeContainer(espNode);
        endNodeCreator.setNodeContainer(espNode);
        NodeCreator<ActionNode> actionNodeCreator = new NodeCreator<ActionNode>(espNode, ActionNode.class);
        EventTypeFilter eventFilter = new NonAcceptingEventTypeFilter();
        eventFilter.setType("Compensation");
        espNode.addEvent(eventFilter);
        addCompensationScope(espNode, compensationScopeContainerNode, (String) compositeNode.getMetaData("UniqueId"));
        StartNode startNode = startNodeCreator.createNode("start3*");
        ActionNode actionNode = actionNodeCreator.createNode("action3*");
        actionNode.setName("Execute");
        ProcessAction action = new ConsequenceAction("java", null);
        action.setMetaData("Action", new Action() {

            public void execute(ProcessContext context) throws Exception {
                eventList.add("Executed action");
            }
        });
        actionNode.setAction(action);
        connect(startNode, actionNode);
        EndNode endNode = endNodeCreator.createNode("end3*");
        connect(actionNode, endNode);
    }
    return process;
}

Example 15 with WorkItemNode

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

the class CompensationTest method createCompensationBoundaryEventProcess.

private ExecutableProcess createCompensationBoundaryEventProcess(String processId, String[] workItemNames, final List<String> eventList) throws Exception {
    ExecutableProcess process = new ExecutableProcess();
    process.setAutoComplete(true);
    process.setId(processId);
    process.setName("CESP Process");
    process.setMetaData("Compensation", true);
    List<Variable> variables = new ArrayList<Variable>();
    Variable variable = new Variable();
    variable.setName("event");
    ObjectDataType personDataType = new ObjectDataType(java.lang.String.class);
    variable.setType(personDataType);
    variables.add(variable);
    process.getVariableScope().setVariables(variables);
    NodeCreator<StartNode> startNodeCreator = new NodeCreator<StartNode>(process, StartNode.class);
    NodeCreator<EndNode> endNodeCreator = new NodeCreator<EndNode>(process, EndNode.class);
    NodeCreator<WorkItemNode> workItemNodeCreator = new NodeCreator<WorkItemNode>(process, WorkItemNode.class);
    NodeCreator<BoundaryEventNode> boundaryNodeCreator = new NodeCreator<BoundaryEventNode>(process, BoundaryEventNode.class);
    NodeCreator<ActionNode> actionNodeCreator = new NodeCreator<ActionNode>(process, ActionNode.class);
    // Create process
    StartNode startNode = startNodeCreator.createNode("start");
    Node lastNode = startNode;
    WorkItemNode[] workItemNodes = new WorkItemNode[3];
    for (int i = 0; i < 3; ++i) {
        workItemNodes[i] = workItemNodeCreator.createNode("work" + (i + 1));
        workItemNodes[i].getWork().setName(workItemNames[i]);
        connect(lastNode, workItemNodes[i]);
        lastNode = workItemNodes[i];
    }
    EndNode endNode = endNodeCreator.createNode("end");
    connect(workItemNodes[2], endNode);
    // Compensation (boundary event) handlers
    for (int i = 0; i < 3; ++i) {
        createBoundaryEventCompensationHandler(process, workItemNodes[i], eventList, "" + i + 1);
    }
    return process;
}