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

Example 1 with WorkflowProcess

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

the class ServerlessWorkflowParser method addErrorHandlingToState.

protected void addErrorHandlingToState(Workflow workflow, State state, ServerlessWorkflowFactory factory, AtomicLong ids, WorkflowProcess process, CompositeContextNode subprocess) {
    if (state.getOnErrors() != null) {
        for (io.serverlessworkflow.api.error.Error error : state.getOnErrors()) {
            List<ErrorDefinition> defs = new ArrayList<>();
            if (error.getErrorRef() != null) {
                workflow.getErrors().getErrorDefs().stream().filter(err -> err.getName().equals(error.getErrorRef())).forEach(err -> defs.add(err));
            } else {
                workflow.getErrors().getErrorDefs().stream().filter(err -> error.getErrorRefs().contains(err.getName())).forEach(err -> defs.add(err));
            }
            BoundaryEventNode errorNode = factory.errorBoundaryEventNode(ids.getAndIncrement(), defs, null, process, subprocess, workflow);
            if (error.getEnd() != null) {
                EndNode onErrorEnd = factory.endNode(ids.getAndIncrement(), state.getName() + "onErrorEnd", error.getEnd().isTerminate(), process);
                if (error.getEnd().getProduceEvents() != null && !error.getEnd().getProduceEvents().isEmpty()) {
                    produceEvents(error.getEnd().getProduceEvents(), factory, workflow, ids, process, errorNode.getId(), onErrorEnd.getId());
                } else {
                    factory.connect(errorNode.getId(), onErrorEnd.getId(), "connect_" + errorNode.getId() + "_" + onErrorEnd.getId(), process, false);
                }
            } else {
                if (error.getTransition().getNextState() != null) {
                    for (io.automatiko.engine.api.definition.process.Node node : process.getNodes()) {
                        if (node.getName().equals(error.getTransition().getNextState())) {
                            if (error.getTransition().getProduceEvents() != null && !error.getTransition().getProduceEvents().isEmpty()) {
                                produceEvents(error.getTransition().getProduceEvents(), factory, workflow, ids, process, errorNode.getId(), node.getId());
                            } else {
                                factory.connect(errorNode.getId(), node.getId(), "connect_" + errorNode.getId() + "_" + node.getId(), process, false);
                            }
                            break;
                        }
                    }
                }
            }
        }
    }
}

Example 2 with WorkflowProcess

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

the class ServerlessWorkflowParser method parse.

public Process parse(Reader workflowFile) {
    AtomicLong ids = new AtomicLong(0);
    Workflow workflow = Workflow.fromSource(toString(workflowFile));
    ServerlessWorkflowFactory factory = new ServerlessWorkflowFactory();
    if (!"jq".equalsIgnoreCase(workflow.getExpressionLang())) {
        throw new IllegalArgumentException("Not supported expression language, only 'jq' is supported");
    }
    WorkflowProcess process = factory.createProcess(workflow);
    State start = WorkflowUtils.getStartingState(workflow);
    Node startNode;
    if (start.getType().equals(DefaultState.Type.EVENT)) {
        List<Node> nodes = new ArrayList<>();
        EventState eventState = (EventState) start;
        for (OnEvents onEvent : eventState.getOnEvents()) {
            if (eventState.isExclusive()) {
                // use event based gateway
                Join join = factory.joinNode(ids.getAndIncrement(), "join_" + eventState.getName(), Join.TYPE_XOR, process);
                for (String eventRef : onEvent.getEventRefs()) {
                    EventDefinition event = WorkflowUtils.getDefinedConsumedEvents(workflow).stream().filter(e -> e.getName().equals(eventRef)).findFirst().get();
                    StartNode startMessageNode = factory.messageStartNode(ids.getAndIncrement(), event, onEvent, process);
                    factory.connect(startMessageNode.getId(), join.getId(), "connection_" + startMessageNode.getId() + "_" + join.getId(), process, false);
                }
                buildActionsForState(workflow, onEvent.getActions(), process, factory, ids, (first, last) -> {
                    factory.connect(join.getId(), first.getId(), join.getId() + "_" + first.getId(), process, false);
                    nodes.add(last);
                }, (first, last) -> {
                }, false);
            } else {
                // use parallel gateway
                Join parallelJoin = factory.joinNode(ids.getAndIncrement(), "join_" + eventState.getName(), Join.TYPE_AND, process);
                for (String eventRef : onEvent.getEventRefs()) {
                    EventDefinition event = WorkflowUtils.getDefinedConsumedEvents(workflow).stream().filter(e -> e.getName().equals(eventRef)).findFirst().get();
                    StartNode startMessageNode = factory.messageStartNode(ids.getAndIncrement(), event, onEvent, process);
                    factory.connect(startMessageNode.getId(), parallelJoin.getId(), "connection_" + startMessageNode.getId() + "_" + parallelJoin.getId(), process, false);
                }
                buildActionsForState(workflow, onEvent.getActions(), process, factory, ids, (first, last) -> {
                    factory.connect(parallelJoin.getId(), first.getId(), parallelJoin.getId() + "_" + first.getId(), process, false);
                    nodes.add(last);
                }, (first, last) -> {
                }, false);
            }
        }
        // start node becomes the last node after message event handling so other parts are connected to it
        startNode = nodes.get(0);
        if (eventState.getStateDataFilter() != null && eventState.getStateDataFilter().getOutput() != null) {
            ActionNode stateDataFilterActionNode = factory.stateDataFilterActionNode(ids.getAndIncrement(), "", process, eventState.getStateDataFilter().getOutput());
            factory.connect(startNode.getId(), stateDataFilterActionNode.getId(), "connection_" + startNode.getId() + "_" + stateDataFilterActionNode.getId(), process, false);
            startNode = stateDataFilterActionNode;
        }
        if (eventState.getEnd() != null) {
            EndNode endNode = factory.endNode(ids.getAndIncrement(), eventState.getName() + "-end", eventState.getEnd().isTerminate(), process);
            if (eventState.getEnd().getProduceEvents() != null && !eventState.getEnd().getProduceEvents().isEmpty()) {
                produceEvents(eventState.getEnd().getProduceEvents(), factory, workflow, ids, process, startNode.getId(), endNode.getId());
            } else {
                factory.connect(startNode.getId(), endNode.getId(), "connection_" + startNode.getId() + "_" + endNode.getId(), process, false);
            }
        }
    } else {
        startNode = factory.startNode(ids.getAndIncrement(), start.getName() + "-start", process);
    }
    // map of state names to node ids for connecting purpose
    Map<String, Long> mappedNodes = new LinkedHashMap<>();
    Node currentNode = null;
    // process all states and create proper node representation for each state
    for (State state : workflow.getStates()) {
        if (state.getType().equals(Type.INJECT)) {
            ActionNode actionNode = factory.injectStateNode(ids.getAndIncrement(), state.getName(), process, ((InjectState) state).getData().toString());
            mappedNodes.put(state.getName(), actionNode.getId());
            if (state.getEnd() != null) {
                EndNode endNode = factory.endNode(ids.getAndIncrement(), state.getName() + "-end", state.getEnd().isTerminate(), process);
                if (state.getEnd().getProduceEvents() != null && !state.getEnd().getProduceEvents().isEmpty()) {
                    produceEvents(state.getEnd().getProduceEvents(), factory, workflow, ids, process, actionNode.getId(), endNode.getId());
                } else {
                    factory.connect(actionNode.getId(), endNode.getId(), "connection_" + actionNode.getId() + "_" + endNode.getId(), process, false);
                }
            }
            setUniqueId(actionNode, state);
            currentNode = actionNode;
        } else if (state.getType().equals(DefaultState.Type.OPERATION)) {
            OperationState operationState = (OperationState) state;
            CompositeContextNode embeddedSubProcess = factory.subProcessNode(ids.getAndIncrement(), state.getName(), process);
            currentNode = embeddedSubProcess;
            setUniqueId(embeddedSubProcess, state);
            // handle state data inputs
            Assignment inputAssignment = new Assignment("jq", "", "");
            inputAssignment.setMetaData("Action", new InputJqAssignmentAction(state.getStateDataFilter() == null ? null : factory.unwrapExpression(state.getStateDataFilter().getInput())));
            embeddedSubProcess.addInAssociation(new DataAssociation(Collections.emptyList(), "", Arrays.asList(inputAssignment), null));
            // handle state data outputs
            Assignment outputAssignment = new Assignment("jq", "", "");
            outputAssignment.setMetaData("Action", new OutputJqAssignmentAction(state.getStateDataFilter() == null ? null : factory.unwrapExpression(state.getStateDataFilter().getOutput())));
            embeddedSubProcess.addOutAssociation(new DataAssociation(Collections.emptyList(), "", Arrays.asList(outputAssignment), null));
            mappedNodes.put(state.getName(), embeddedSubProcess.getId());
            StartNode embeddedStartNode = factory.startNode(ids.getAndIncrement(), "EmbeddedStart", embeddedSubProcess);
            EndNode embeddedEndNode = factory.endNode(ids.getAndIncrement(), "EmbeddedEnd", false, embeddedSubProcess);
            if (operationState.getActions() == null || operationState.getActions().isEmpty()) {
                factory.connect(embeddedStartNode.getId(), embeddedEndNode.getId(), embeddedStartNode.getId() + "_" + embeddedEndNode.getId(), embeddedSubProcess, false);
                if (state.getEnd() != null) {
                    EndNode endNode = factory.endNode(ids.getAndIncrement(), state.getName() + "-end", state.getEnd().isTerminate(), process);
                    if (state.getEnd().getProduceEvents() != null && !state.getEnd().getProduceEvents().isEmpty()) {
                        produceEvents(state.getEnd().getProduceEvents(), factory, workflow, ids, process, embeddedSubProcess.getId(), endNode.getId());
                    } else {
                        factory.connect(embeddedSubProcess.getId(), endNode.getId(), "connection_" + embeddedSubProcess.getId() + "_" + endNode.getId(), process, false);
                    }
                }
                // ensure that start node is connected
                if (state.equals(start) && currentNode != null) {
                    factory.connect(startNode.getId(), currentNode.getId(), "connection_" + startNode.getId() + "_" + currentNode.getId(), process, false);
                }
                continue;
            }
            if (operationState.getActionMode() == null || operationState.getActionMode() == ActionMode.SEQUENTIAL) {
                buildActionsForState(workflow, operationState.getActions(), embeddedSubProcess, factory, ids, (first, last) -> {
                    factory.connect(embeddedStartNode.getId(), first.getId(), embeddedStartNode.getId() + "_" + first.getId(), embeddedSubProcess, false);
                    factory.connect(last.getId(), embeddedEndNode.getId(), last.getId() + "_" + embeddedEndNode.getId(), embeddedSubProcess, false);
                }, (first, last) -> {
                }, false);
            } else {
                Split split = factory.splitNode(ids.getAndIncrement(), "parallel-split-" + state.getName(), Split.TYPE_AND, embeddedSubProcess);
                Join join = factory.joinNode(ids.getAndIncrement(), "parallel-join-" + state.getName(), Join.TYPE_AND, embeddedSubProcess);
                factory.connect(embeddedStartNode.getId(), split.getId(), embeddedStartNode.getId() + "_" + split.getId(), embeddedSubProcess, false);
                factory.connect(join.getId(), embeddedEndNode.getId(), join.getId() + "_" + embeddedEndNode.getId(), embeddedSubProcess, false);
                buildActionsForState(workflow, operationState.getActions(), embeddedSubProcess, factory, ids, (first, last) -> {
                }, (first, last) -> {
                    factory.connect(split.getId(), first.getId(), split.getId() + "_" + first.getId(), embeddedSubProcess, false);
                    factory.connect(last.getId(), join.getId(), last.getId() + "_" + join.getId(), embeddedSubProcess, false);
                }, true);
            }
            if (state.getEnd() != null) {
                EndNode endNode = factory.endNode(ids.getAndIncrement(), state.getName() + "-end", state.getEnd().isTerminate(), process);
                if (state.getEnd().getProduceEvents() != null && !state.getEnd().getProduceEvents().isEmpty()) {
                    produceEvents(state.getEnd().getProduceEvents(), factory, workflow, ids, process, embeddedSubProcess.getId(), endNode.getId());
                } else {
                    factory.connect(embeddedSubProcess.getId(), endNode.getId(), "connection_" + embeddedSubProcess.getId() + "_" + endNode.getId(), process, false);
                }
            }
        } else if (state.getType().equals(DefaultState.Type.EVENT)) {
            EventState eventState = (EventState) state;
            if (eventState.equals(start)) {
                // event state that is start node is already handled
                continue;
            }
            for (OnEvents onEvent : eventState.getOnEvents()) {
                CompositeContextNode embeddedSubProcess = factory.subProcessNode(ids.getAndIncrement(), state.getName(), process);
                setUniqueId(embeddedSubProcess, state);
                currentNode = embeddedSubProcess;
                // handle state data inputs
                Assignment inputAssignment = new Assignment("jq", "", "");
                inputAssignment.setMetaData("Action", new InputJqAssignmentAction(state.getStateDataFilter() == null ? null : factory.unwrapExpression(state.getStateDataFilter().getInput())));
                embeddedSubProcess.addInAssociation(new DataAssociation(Collections.emptyList(), "", Arrays.asList(inputAssignment), null));
                // handle state data outputs
                Assignment outputAssignment = new Assignment("jq", "", "");
                outputAssignment.setMetaData("Action", new OutputJqAssignmentAction(state.getStateDataFilter() == null ? null : factory.unwrapExpression(state.getStateDataFilter().getOutput())));
                embeddedSubProcess.addOutAssociation(new DataAssociation(Collections.emptyList(), "", Arrays.asList(outputAssignment), null));
                mappedNodes.put(state.getName(), embeddedSubProcess.getId());
                StartNode embeddedStartNode = factory.startNode(ids.getAndIncrement(), "EmbeddedStart", embeddedSubProcess);
                EndNode embeddedEndNode = factory.endNode(ids.getAndIncrement(), "EmbeddedEnd", false, embeddedSubProcess);
                if (eventState.isExclusive()) {
                    // use event based gateway
                    Split eventSplit = factory.eventBasedSplit(ids.getAndIncrement(), "split_" + state.getName(), embeddedSubProcess);
                    Join join = factory.joinNode(ids.getAndIncrement(), "join_" + state.getName(), Join.TYPE_XOR, embeddedSubProcess);
                    factory.connect(embeddedStartNode.getId(), eventSplit.getId(), "connection_" + embeddedStartNode.getId() + "_" + eventSplit.getId(), embeddedSubProcess, false);
                    for (String eventRef : onEvent.getEventRefs()) {
                        EventDefinition event = WorkflowUtils.getDefinedConsumedEvents(workflow).stream().filter(e -> e.getName().equals(eventRef)).findFirst().get();
                        EventNode eventNode = factory.consumeEventNode(ids.getAndIncrement(), event, onEvent.getEventDataFilter(), embeddedSubProcess);
                        factory.connect(eventSplit.getId(), eventNode.getId(), "connection_" + eventSplit.getId() + "_" + eventNode.getId(), embeddedSubProcess, false);
                        factory.connect(eventNode.getId(), join.getId(), "connection_" + eventNode.getId() + "_" + join.getId(), embeddedSubProcess, false);
                    }
                    buildActionsForState(workflow, onEvent.getActions(), embeddedSubProcess, factory, ids, (first, last) -> {
                        factory.connect(join.getId(), first.getId(), join.getId() + "_" + first.getId(), embeddedSubProcess, false);
                        factory.connect(last.getId(), embeddedEndNode.getId(), last.getId() + "_" + embeddedEndNode.getId(), embeddedSubProcess, false);
                    }, (first, last) -> {
                    }, false);
                } else {
                    // use parallel gateway
                    Split parallelSplit = factory.splitNode(ids.getAndIncrement(), "split_" + state.getName(), Split.TYPE_AND, embeddedSubProcess);
                    Join parallelJoin = factory.joinNode(ids.getAndIncrement(), "join_" + state.getName(), Join.TYPE_AND, embeddedSubProcess);
                    factory.connect(embeddedStartNode.getId(), parallelSplit.getId(), "connection_" + embeddedStartNode.getId() + "_" + parallelSplit.getId(), embeddedSubProcess, false);
                    for (String eventRef : onEvent.getEventRefs()) {
                        EventDefinition event = WorkflowUtils.getDefinedConsumedEvents(workflow).stream().filter(e -> e.getName().equals(eventRef)).findFirst().get();
                        EventNode eventNode = factory.consumeEventNode(ids.getAndIncrement(), event, onEvent.getEventDataFilter(), embeddedSubProcess);
                        factory.connect(parallelSplit.getId(), eventNode.getId(), "connection_" + parallelSplit.getId() + "_" + eventNode.getId(), embeddedSubProcess, false);
                        factory.connect(eventNode.getId(), parallelJoin.getId(), "connection_" + eventNode.getId() + "_" + parallelJoin.getId(), embeddedSubProcess, false);
                    }
                    buildActionsForState(workflow, onEvent.getActions(), embeddedSubProcess, factory, ids, (first, last) -> {
                        factory.connect(parallelJoin.getId(), first.getId(), parallelJoin.getId() + "_" + first.getId(), embeddedSubProcess, false);
                        factory.connect(last.getId(), embeddedEndNode.getId(), last.getId() + "_" + embeddedEndNode.getId(), embeddedSubProcess, false);
                    }, (first, last) -> {
                    }, false);
                }
                if (state.getEnd() != null) {
                    EndNode endNode = factory.endNode(ids.getAndIncrement(), state.getName() + "-end", state.getEnd().isTerminate(), process);
                    if (state.getEnd().getProduceEvents() != null && !state.getEnd().getProduceEvents().isEmpty()) {
                        produceEvents(state.getEnd().getProduceEvents(), factory, workflow, ids, process, embeddedSubProcess.getId(), endNode.getId());
                    } else {
                        factory.connect(embeddedSubProcess.getId(), endNode.getId(), "connection_" + embeddedSubProcess.getId() + "_" + endNode.getId(), process, false);
                    }
                }
            }
        } else if (state.getType().equals(DefaultState.Type.CALLBACK)) {
            CallbackState callcackState = (CallbackState) state;
            CompositeContextNode embeddedSubProcess = factory.subProcessNode(ids.getAndIncrement(), state.getName(), process);
            currentNode = embeddedSubProcess;
            setUniqueId(embeddedSubProcess, state);
            // handle state data inputs
            Assignment inputAssignment = new Assignment("jq", "", "");
            inputAssignment.setMetaData("Action", new InputJqAssignmentAction(state.getStateDataFilter() == null ? null : factory.unwrapExpression(state.getStateDataFilter().getInput())));
            embeddedSubProcess.addInAssociation(new DataAssociation(Collections.emptyList(), "", Arrays.asList(inputAssignment), null));
            // handle state data outputs
            Assignment outputAssignment = new Assignment("jq", "", "");
            outputAssignment.setMetaData("Action", new OutputJqAssignmentAction(state.getStateDataFilter() == null ? null : factory.unwrapExpression(state.getStateDataFilter().getOutput())));
            embeddedSubProcess.addOutAssociation(new DataAssociation(Collections.emptyList(), "", Arrays.asList(outputAssignment), null));
            mappedNodes.put(state.getName(), embeddedSubProcess.getId());
            StartNode embeddedStartNode = factory.startNode(ids.getAndIncrement(), "EmbeddedStart", embeddedSubProcess);
            EndNode embeddedEndNode = factory.endNode(ids.getAndIncrement(), "EmbeddedEnd", false, embeddedSubProcess);
            EventDefinition event = WorkflowUtils.getDefinedConsumedEvents(workflow).stream().filter(e -> e.getName().equals(callcackState.getEventRef())).findFirst().get();
            EventNode eventNode = factory.consumeEventNode(ids.getAndIncrement(), event, callcackState.getEventDataFilter(), embeddedSubProcess);
            buildActionsForState(workflow, Collections.singletonList(callcackState.getAction()), embeddedSubProcess, factory, ids, (first, last) -> {
                factory.connect(embeddedStartNode.getId(), first.getId(), embeddedStartNode.getId() + "_" + first.getId(), embeddedSubProcess, false);
                factory.connect(last.getId(), eventNode.getId(), last.getId() + "_" + eventNode.getId(), embeddedSubProcess, false);
            }, (first, last) -> {
            }, false);
            factory.connect(eventNode.getId(), embeddedEndNode.getId(), "connection_" + eventNode.getId() + "_" + embeddedEndNode.getId(), embeddedSubProcess, false);
            if (state.getEnd() != null) {
                EndNode endNode = factory.endNode(ids.getAndIncrement(), state.getName() + "-end", state.getEnd().isTerminate(), process);
                if (state.getEnd().getProduceEvents() != null && !state.getEnd().getProduceEvents().isEmpty()) {
                    produceEvents(state.getEnd().getProduceEvents(), factory, workflow, ids, process, embeddedSubProcess.getId(), endNode.getId());
                } else {
                    factory.connect(embeddedSubProcess.getId(), endNode.getId(), "connection_" + embeddedSubProcess.getId() + "_" + endNode.getId(), process, false);
                }
            }
        } else if (state.getType().equals(Type.SLEEP)) {
            TimerNode sleep = factory.timerNode(ids.getAndIncrement(), "sleep-" + state.getName(), ((SleepState) state).getDuration(), process);
            mappedNodes.put(state.getName(), sleep.getId());
            setUniqueId(sleep, state);
            if (state.getEnd() != null) {
                EndNode endNode = factory.endNode(ids.getAndIncrement(), state.getName() + "-end", state.getEnd().isTerminate(), process);
                if (state.getEnd().getProduceEvents() != null && !state.getEnd().getProduceEvents().isEmpty()) {
                    produceEvents(state.getEnd().getProduceEvents(), factory, workflow, ids, process, sleep.getId(), endNode.getId());
                } else {
                    factory.connect(sleep.getId(), endNode.getId(), "connection_" + sleep.getId() + "_" + endNode.getId(), process, false);
                }
            }
            currentNode = sleep;
        } else if (state.getType().equals(DefaultState.Type.PARALLEL)) {
            ParallelState parallelState = (ParallelState) state;
            CompositeContextNode embeddedSubProcess = factory.subProcessNode(ids.getAndIncrement(), state.getName(), process);
            setUniqueId(embeddedSubProcess, state);
            currentNode = embeddedSubProcess;
            // handle state data inputs
            Assignment inputAssignment = new Assignment("jq", "", "");
            inputAssignment.setMetaData("Action", new InputJqAssignmentAction(state.getStateDataFilter() == null ? null : factory.unwrapExpression(state.getStateDataFilter().getInput())));
            embeddedSubProcess.addInAssociation(new DataAssociation(Collections.emptyList(), "", Arrays.asList(inputAssignment), null));
            // handle state data outputs
            Assignment outputAssignment = new Assignment("jq", "", "");
            outputAssignment.setMetaData("Action", new OutputJqAssignmentAction(state.getStateDataFilter() == null ? null : factory.unwrapExpression(state.getStateDataFilter().getOutput())));
            embeddedSubProcess.addOutAssociation(new DataAssociation(Collections.emptyList(), "", Arrays.asList(outputAssignment), null));
            mappedNodes.put(state.getName(), embeddedSubProcess.getId());
            StartNode embeddedStartNode = factory.startNode(ids.getAndIncrement(), "EmbeddedStart", embeddedSubProcess);
            EndNode embeddedEndNode = factory.endNode(ids.getAndIncrement(), "EmbeddedEnd", false, embeddedSubProcess);
            Split parallelSplit = factory.splitNode(ids.getAndIncrement(), "split_" + state.getName(), Split.TYPE_AND, embeddedSubProcess);
            Join parallelJoin;
            if (parallelState.getCompletionType().equals(CompletionType.AT_LEAST)) {
                parallelJoin = factory.joinNode(ids.getAndIncrement(), "join_" + state.getName(), Join.TYPE_N_OF_M, embeddedSubProcess);
                parallelJoin.setN(parallelState.getNumCompleted());
            } else {
                parallelJoin = factory.joinNode(ids.getAndIncrement(), "join_" + state.getName(), Join.TYPE_AND, embeddedSubProcess);
            }
            factory.connect(embeddedStartNode.getId(), parallelSplit.getId(), "connection_" + embeddedStartNode.getId() + "_" + parallelSplit.getId(), embeddedSubProcess, false);
            for (Branch branch : parallelState.getBranches()) {
                buildActionsForState(workflow, branch.getActions(), embeddedSubProcess, factory, ids, (first, last) -> {
                    factory.connect(parallelSplit.getId(), first.getId(), parallelSplit.getId() + "_" + first.getId(), embeddedSubProcess, false);
                    factory.connect(last.getId(), parallelJoin.getId(), last.getId() + "_" + parallelJoin.getId(), embeddedSubProcess, false);
                }, (first, last) -> {
                }, true);
            }
            factory.connect(parallelJoin.getId(), embeddedEndNode.getId(), "connection_" + parallelJoin.getId() + "_" + embeddedEndNode.getId(), embeddedSubProcess, false);
            if (state.getEnd() != null) {
                EndNode endNode = factory.endNode(ids.getAndIncrement(), state.getName() + "-end", state.getEnd().isTerminate(), process);
                if (state.getEnd().getProduceEvents() != null && !state.getEnd().getProduceEvents().isEmpty()) {
                    produceEvents(state.getEnd().getProduceEvents(), factory, workflow, ids, process, embeddedSubProcess.getId(), endNode.getId());
                } else {
                    factory.connect(embeddedSubProcess.getId(), endNode.getId(), "connection_" + embeddedSubProcess.getId() + "_" + endNode.getId(), process, false);
                }
            }
        } else if (state.getType().equals(DefaultState.Type.FOREACH)) {
        }
        // ensure that start node is connected
        if (state.equals(start) && currentNode != null) {
            factory.connect(startNode.getId(), currentNode.getId(), "connection_" + startNode.getId() + "_" + currentNode.getId(), process, false);
        }
    }
    for (State state : workflow.getStates()) {
        if (state.getType().equals(Type.SWITCH)) {
            // switch state must be processed at the end as it needs to reference other nodes by id
            SwitchState switchState = (SwitchState) state;
            if (switchState.getDataConditions() != null && !switchState.getDataConditions().isEmpty()) {
                Split splitNode = factory.splitNode(ids.getAndIncrement(), "split_" + state.getName(), Split.TYPE_XOR, process);
                currentNode = splitNode;
                setUniqueId(splitNode, state);
                mappedNodes.put(state.getName(), splitNode.getId());
                int priority = 1;
                for (DataCondition condition : switchState.getDataConditions()) {
                    boolean isDefaultConstraint = false;
                    if (switchState.getDefaultCondition() != null && switchState.getDefaultCondition().getTransition() != null && condition.getTransition() != null && condition.getTransition().getNextState().equals(switchState.getDefaultCondition().getTransition().getNextState())) {
                        isDefaultConstraint = true;
                    }
                    if (switchState.getDefaultCondition() != null && switchState.getDefaultCondition().getEnd() != null && condition.getEnd() != null) {
                        isDefaultConstraint = true;
                    }
                    Connection outgoingConnection = null;
                    long target = 0;
                    if (condition.getEnd() != null) {
                        EndNode endNode = factory.endNode(ids.getAndIncrement(), "end_" + switchState.getName(), false, process);
                        target = endNode.getId();
                        outgoingConnection = factory.connect(splitNode.getId(), endNode.getId(), "connection_" + splitNode.getId() + "_" + endNode.getId(), process, false);
                    } else if (condition.getTransition() != null && condition.getTransition().getNextState() != null) {
                        long source = splitNode.getId();
                        target = mappedNodes.get(condition.getTransition().getNextState());
                        outgoingConnection = factory.connect(source, target, "connection_" + source + "_" + target, process, false);
                    }
                    ReturnValueConstraintEvaluator returnValueConstraint = new ReturnValueConstraintEvaluator();
                    returnValueConstraint.setDialect("jq");
                    returnValueConstraint.setName(splitNode.getId() + "_" + target);
                    returnValueConstraint.setPriority(priority);
                    returnValueConstraint.setDefault(isDefaultConstraint);
                    returnValueConstraint.setType("DROOLS_DEFAULT");
                    returnValueConstraint.setConstraint(factory.unwrapExpression(condition.getCondition()));
                    returnValueConstraint.setEvaluator(new JqReturnValueEvaluator(factory.unwrapExpression(condition.getCondition())));
                    splitNode.setConstraint(outgoingConnection, returnValueConstraint);
                }
            } else if (switchState.getEventConditions() != null && !switchState.getEventConditions().isEmpty()) {
                Split splitNode = factory.eventBasedSplit(ids.getAndIncrement(), "split_" + state.getName(), process);
                currentNode = splitNode;
                setUniqueId(splitNode, state);
                mappedNodes.put(state.getName(), splitNode.getId());
                for (EventCondition eventCondition : switchState.getEventConditions()) {
                    EventDefinition event = WorkflowUtils.getDefinedConsumedEvents(workflow).stream().filter(e -> e.getName().equals(eventCondition.getEventRef())).findFirst().get();
                    EventNode eventNode = factory.consumeEventNode(ids.getAndIncrement(), event, eventCondition.getEventDataFilter(), process);
                    factory.connect(splitNode.getId(), eventNode.getId(), "connection_" + splitNode.getId() + "_" + eventNode.getId(), process, false);
                    long target = 0;
                    if (eventCondition.getEnd() != null) {
                        EndNode endNode = factory.endNode(ids.getAndIncrement(), "end_" + switchState.getName(), false, process);
                        target = endNode.getId();
                        factory.connect(splitNode.getId(), endNode.getId(), "connection_" + splitNode.getId() + "_" + endNode.getId(), process, false);
                    } else if (eventCondition.getTransition() != null && eventCondition.getTransition().getNextState() != null) {
                        target = mappedNodes.get(eventCondition.getTransition().getNextState());
                        factory.connect(eventNode.getId(), target, "connection_" + eventNode.getId() + "_" + target, process, false);
                    }
                }
                if (switchState.getTimeouts() != null && switchState.getTimeouts().getEventTimeout() != null) {
                    TimerNode timer = factory.timerNode(ids.getAndIncrement(), "event-switch-timeout", switchState.getTimeouts().getEventTimeout(), process);
                    factory.connect(splitNode.getId(), timer.getId(), "connection_" + splitNode.getId() + "_" + timer.getId(), process, false);
                    EndNode endNode = factory.endNode(ids.getAndIncrement(), "end_" + switchState.getName(), false, process);
                    factory.connect(timer.getId(), endNode.getId(), "connection_" + timer.getId() + "_" + endNode.getId(), process, false);
                }
            }
            // ensure that start node is connected
            if (state.equals(start) && currentNode != null) {
                factory.connect(startNode.getId(), currentNode.getId(), "connection_" + startNode.getId() + "_" + currentNode.getId(), process, false);
            }
        }
    }
    // next connect all nodes
    for (State state : workflow.getStates()) {
        if (!mappedNodes.containsKey(state.getName())) {
            continue;
        }
        long source = mappedNodes.get(state.getName());
        if (state.getTransition() != null && state.getTransition().getNextState() != null) {
            long target = mappedNodes.get(state.getTransition().getNextState());
            if (state.getTransition().getProduceEvents() != null && !state.getTransition().getProduceEvents().isEmpty()) {
                produceEvents(state.getTransition().getProduceEvents(), factory, workflow, ids, process, source, target);
            } else {
                factory.connect(source, target, "connection_" + source + "_" + target, process, false);
            }
        }
    }
    // attach error handling
    for (State state : workflow.getStates()) {
        if (!mappedNodes.containsKey(state.getName())) {
            continue;
        }
        long source = mappedNodes.get(state.getName());
        if (process.getNode(source) instanceof CompositeContextNode) {
            addErrorHandlingToState(workflow, state, factory, ids, process, (CompositeContextNode) process.getNode(source));
        }
    }
    factory.validate((ExecutableProcess) process);
    if (workflow.getTimeouts() != null && workflow.getTimeouts().getWorkflowExecTimeout() != null) {
        factory.addExecutionTimeout(ids.getAndIncrement(), workflow.getTimeouts().getWorkflowExecTimeout(), (ExecutableProcess) process);
    }
    process.setMetaData("SW-Workflow", workflow);
    return process;
}

Example 3 with WorkflowProcess

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

the class CompositeContextNodeInstance method processInputMappings.

@SuppressWarnings({ "unchecked", "rawtypes" })
protected void processInputMappings() {
    VariableScopeInstance compositeVariableScopeInstance = (VariableScopeInstance) getContextInstance(VARIABLE_SCOPE);
    for (DataAssociation association : getCompositeContextNode().getInAssociations()) {
        if (association.getTransformation() != null) {
            Transformation transformation = association.getTransformation();
            DataTransformer transformer = DataTransformerRegistry.get().find(transformation.getLanguage());
            if (transformer != null) {
                Object parameterValue = transformer.transform(transformation.getCompiledExpression(), getProcessInstance().getVariables());
                if (parameterValue != null) {
                    compositeVariableScopeInstance.setVariable(association.getTarget(), parameterValue);
                }
            }
        } else if (association.getAssignments() == null || association.getAssignments().isEmpty()) {
            Object parameterValue = null;
            VariableScopeInstance variableScopeInstance = (VariableScopeInstance) resolveContextInstance(VARIABLE_SCOPE, association.getSources().get(0));
            if (variableScopeInstance != null) {
                parameterValue = variableScopeInstance.getVariable(association.getSources().get(0));
            } else {
                try {
                    ExpressionEvaluator evaluator = (ExpressionEvaluator) ((WorkflowProcess) getProcessInstance().getProcess()).getDefaultContext(ExpressionEvaluator.EXPRESSION_EVALUATOR);
                    parameterValue = evaluator.evaluate(association.getSources().get(0), new NodeInstanceResolverFactory(this));
                } catch (Throwable t) {
                    logger.error("Could not find variable scope for variable {}", association.getSources().get(0));
                    logger.error("Continuing without setting parameter.");
                }
            }
            if (parameterValue != null) {
                compositeVariableScopeInstance.setVariable(association.getTarget(), parameterValue);
            }
        } else {
            association.getAssignments().stream().forEach(assignment -> handleAssignment(assignment, compositeVariableScopeInstance));
        }
    }
}

Example 4 with WorkflowProcess

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

the class CompositeContextNodeInstance method triggerCompleted.

@SuppressWarnings({ "unchecked", "rawtypes" })
@Override
public void triggerCompleted(String outType) {
    VariableScopeInstance compositeVariableScopeInstance = (VariableScopeInstance) getContextInstance(VARIABLE_SCOPE);
    for (DataAssociation association : getCompositeContextNode().getOutAssociations()) {
        if (association.getTransformation() != null) {
            Transformation transformation = association.getTransformation();
            DataTransformer transformer = DataTransformerRegistry.get().find(transformation.getLanguage());
            if (transformer != null) {
                Object parameterValue = transformer.transform(transformation.getCompiledExpression(), compositeVariableScopeInstance.getVariables());
                if (parameterValue != null) {
                    getProcessInstance().setVariable(association.getTarget(), parameterValue);
                }
            }
        } else if (association.getAssignments() == null || association.getAssignments().isEmpty()) {
            Object parameterValue = null;
            VariableScopeInstance variableScopeInstance = (VariableScopeInstance) resolveContextInstance(VARIABLE_SCOPE, association.getSources().get(0));
            if (variableScopeInstance != null) {
                parameterValue = variableScopeInstance.getVariable(association.getSources().get(0));
            } else {
                try {
                    ExpressionEvaluator evaluator = (ExpressionEvaluator) ((WorkflowProcess) getProcessInstance().getProcess()).getDefaultContext(ExpressionEvaluator.EXPRESSION_EVALUATOR);
                    parameterValue = evaluator.evaluate(association.getSources().get(0), new NodeInstanceResolverFactory(this));
                } catch (Throwable t) {
                    logger.error("Could not find variable scope for variable {}", association.getSources().get(0));
                    logger.error("Continuing without setting parameter.");
                }
            }
            if (parameterValue != null) {
                getProcessInstance().setVariable(association.getTarget(), parameterValue);
            }
        } else {
            association.getAssignments().stream().forEach(assignment -> handleAssignment(assignment, compositeVariableScopeInstance));
        }
    }
    super.triggerCompleted(outType);
}

Example 5 with WorkflowProcess

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

the class SubProcessNode method internalSubProcess.

public void internalSubProcess(Collection<io.automatiko.engine.api.workflow.Process> availableProcesses) {
    io.automatiko.engine.api.workflow.Process process = (io.automatiko.engine.api.workflow.Process<Map<String, Object>>) availableProcesses.stream().filter(p -> p.id().equals(processId)).findFirst().orElse(null);
    if (process == null) {
        return;
    }
    this.subProcessFactory = new SubProcessFactory<Object>() {

        @SuppressWarnings({ "unchecked", "rawtypes" })
        @Override
        public Map<String, Object> bind(ProcessContext ctx) {
            Map<String, Object> parameters = new HashMap<String, Object>();
            for (Iterator<DataAssociation> iterator = getInAssociations().iterator(); iterator.hasNext(); ) {
                DataAssociation mapping = iterator.next();
                Object parameterValue = null;
                if (mapping.getTransformation() != null) {
                    Transformation transformation = mapping.getTransformation();
                    DataTransformer transformer = DataTransformerRegistry.get().find(transformation.getLanguage());
                    if (transformer != null) {
                        parameterValue = transformer.transform(transformation.getCompiledExpression(), getSourceParameters(ctx, mapping));
                    }
                } else if (mapping.getAssignments() == null || mapping.getAssignments().isEmpty()) {
                    VariableScopeInstance variableScopeInstance = (VariableScopeInstance) ((NodeInstance) ctx.getNodeInstance()).resolveContextInstance(VariableScope.VARIABLE_SCOPE, mapping.getSources().get(0));
                    if (variableScopeInstance != null) {
                        parameterValue = variableScopeInstance.getVariable(mapping.getSources().get(0));
                    } else {
                        try {
                            ExpressionEvaluator evaluator = (ExpressionEvaluator) ((WorkflowProcess) ctx.getProcessInstance().getProcess()).getDefaultContext(ExpressionEvaluator.EXPRESSION_EVALUATOR);
                            parameterValue = evaluator.evaluate(mapping.getSources().get(0), new NodeInstanceResolverFactory((NodeInstance) ctx.getNodeInstance()));
                        } catch (Throwable t) {
                            parameterValue = VariableUtil.resolveVariable(mapping.getSources().get(0), ctx.getNodeInstance());
                            if (parameterValue != null) {
                                parameters.put(mapping.getTarget(), parameterValue);
                            }
                        }
                    }
                } else {
                    mapping.getAssignments().stream().forEach(a -> handleAssignment(ctx, parameters, a));
                }
                if (parameterValue != null) {
                    parameters.put(mapping.getTarget(), parameterValue);
                }
            }
            return parameters;
        }

        @Override
        public ProcessInstance createInstance(Object model) {
            Model data = (Model) process.createModel();
            data.fromMap((Map<String, Object>) model);
            return process.createInstance(data);
        }

        @Override
        public void unbind(ProcessContext ctx, Object model) {
            Map<String, Object> result = ((Model) model).toMap();
            for (Iterator<DataAssociation> iterator = getOutAssociations().iterator(); iterator.hasNext(); ) {
                DataAssociation mapping = iterator.next();
                if (mapping.getTransformation() != null) {
                    Transformation transformation = mapping.getTransformation();
                    DataTransformer transformer = DataTransformerRegistry.get().find(transformation.getLanguage());
                    if (transformer != null) {
                        Map<String, Object> dataSet = new HashMap<String, Object>();
                        if (ctx.getNodeInstance().getNodeInstanceContainer() instanceof CompositeContextNodeInstance) {
                            VariableScopeInstance variableScopeInstance = (VariableScopeInstance) ((CompositeContextNodeInstance) ctx.getNodeInstance().getNodeInstanceContainer()).getContextInstance(VariableScope.VARIABLE_SCOPE);
                            if (variableScopeInstance != null) {
                                dataSet.putAll(variableScopeInstance.getVariables());
                            }
                        }
                        dataSet.putAll(result);
                        Object parameterValue = transformer.transform(transformation.getCompiledExpression(), dataSet);
                        VariableScopeInstance variableScopeInstance = (VariableScopeInstance) ((NodeInstance) ctx.getNodeInstance()).resolveContextInstance(VariableScope.VARIABLE_SCOPE, mapping.getTarget());
                        if (variableScopeInstance != null && parameterValue != null) {
                            variableScopeInstance.setVariable(ctx.getNodeInstance(), mapping.getTarget(), parameterValue);
                        }
                    }
                } else {
                    VariableScopeInstance variableScopeInstance = (VariableScopeInstance) ((NodeInstance) ctx.getNodeInstance()).resolveContextInstance(VariableScope.VARIABLE_SCOPE, mapping.getTarget());
                    if (variableScopeInstance != null) {
                        Object value = result.get(mapping.getSources().get(0));
                        if (value == null) {
                            try {
                                value = MVEL.eval(mapping.getSources().get(0), result);
                            } catch (Throwable t) {
                            // do nothing
                            }
                        }
                        variableScopeInstance.setVariable(ctx.getNodeInstance(), mapping.getTarget(), value);
                    } else {
                        String output = mapping.getSources().get(0);
                        String target = mapping.getTarget();
                        Matcher matcher = PatternConstants.PARAMETER_MATCHER.matcher(target);
                        if (matcher.find()) {
                            String paramName = matcher.group(1);
                            String expression = paramName + " = " + output;
                            Serializable compiled = MVEL.compileExpression(expression);
                            MVEL.executeExpression(compiled, result);
                        }
                    }
                }
            }
        }

        @SuppressWarnings("unchecked")
        @Override
        public void abortInstance(String instanceId) {
            process.instances().findById(instanceId).ifPresent(pi -> {
                try {
                    ((ProcessInstance<?>) pi).abort();
                } catch (IllegalArgumentException e) {
                // ignore it as this might be thrown in case of canceling already aborted instance
                }
            });
        }

        private void handleAssignment(ProcessContext ctx, Map<String, Object> output, Assignment assignment) {
            AssignmentAction action = (AssignmentAction) assignment.getMetaData("Action");
            try {
                WorkItemImpl workItem = new WorkItemImpl();
                action.execute(workItem, ctx);
                output.putAll(workItem.getParameters());
            } catch (WorkItemExecutionError e) {
                throw e;
            } catch (Exception e) {
                throw new RuntimeException("unable to execute Assignment", e);
            }
        }
    };
}