@Override
public void validate(Definition definition) throws WorkflowException {
State initialState = definition.getInitialState();
if (initialState == null) {
throw new WorkflowException("No initial state defined");
}
List<State> terminalStates = definition.getTerminalStates();
if (terminalStates.isEmpty()) {
throw new WorkflowException("No terminal states defined");
}
if (definition.getForksCount() != definition.getJoinsCount()) {
throw new WorkflowException("There are unbalanced fork and join nodes");
}
Collection<Node> nodes = definition.getNodes();
for (Node node : nodes) {
NodeValidator<Node> nodeValidator =
_nodeValidatorRegistry.getNodeValidator(node.getNodeType());
nodeValidator.validate(definition, node);
}
}
protected void parseTransition(Definition definition, Element nodeElement) {
String sourceName = nodeElement.elementText("name");
Node sourceNode = definition.getNode(sourceName);
Element transitionsElement = nodeElement.element("transitions");
if (transitionsElement == null) {
return;
}
List<Element> transitionElements = transitionsElement.elements("transition");
for (Element transitionElement : transitionElements) {
String transitionName = transitionElement.elementText("name");
String targetName = transitionElement.elementText("target");
Node targetNode = definition.getNode(targetName);
boolean defaultValue = GetterUtil.getBoolean(transitionElement.elementText("default"), true);
Transition transition = new Transition(transitionName, sourceNode, targetNode, defaultValue);
Element timerElement = transitionElement.element("timer");
if (timerElement != null) {
Timer timer = parseTimerElement(timerElement, false);
transition.setTimers(timer);
}
sourceNode.addTransition(transition);
}
}
@Override
public KaleoDefinition incrementKaleoDefinition(
Definition definition, String title, ServiceContext serviceContext) throws PortalException {
KaleoDefinition kaleoDefinition =
getLatestKaleoDefinition(definition.getName(), serviceContext);
return addKaleoDefinition(
definition.getName(),
title,
definition.getDescription(),
definition.getContent(),
kaleoDefinition.getVersion() + 1,
serviceContext);
}
protected String doExport(Definition definition) {
try {
Document document = SAXReaderUtil.createDocument();
Element workflowDefinitionElement = document.addElement("workflow-definition");
workflowDefinitionElement.addAttribute(
"xmlns:xsi", "http://www.w3.org/2001/XMLSchema-instance");
workflowDefinitionElement.addAttribute(
"xsi:schemaLocation",
"urn:liferay.com:liferay-workflow_"
+ _version
+ " http://www.liferay.com/dtd/liferay-workflow-definition_"
+ _schemaVersion
+ ".xsd");
workflowDefinitionElement.addNamespace("", "urn:liferay.com:liferay-workflow_" + _version);
Element nameElement = workflowDefinitionElement.addElement("name", _namespace);
nameElement.addText(definition.getName());
if (Validator.isNotNull(definition.getDescription())) {
Element descriptionElement =
workflowDefinitionElement.addElement("description", _namespace);
descriptionElement.addText(definition.getDescription());
}
Element versionElement = workflowDefinitionElement.addElement("version", _namespace);
versionElement.addText(String.valueOf(definition.getVersion()));
Collection<Node> nodes = definition.getNodes();
for (Node node : nodes) {
NodeExporter nodeExporter = NodeExporterRegistry.getNodeExporter(node.getNodeType());
nodeExporter.exportNode(node, workflowDefinitionElement, _namespace);
}
return document.formattedString();
} catch (IOException ioe) {
throw new SystemException("Unable to export definition", ioe);
}
}
protected Definition doParse(InputStream inputStream) throws Exception {
Document document = SAXReaderUtil.read(inputStream, _validate);
Element rootElement = document.getRootElement();
String name = rootElement.elementText("name");
String description = rootElement.elementText("description");
int version = GetterUtil.getInteger(rootElement.elementText("version"));
Definition definition = new Definition(name, description, document.formattedString(), version);
List<Element> conditionElements = rootElement.elements("condition");
for (Element conditionElement : conditionElements) {
Condition condition = parseCondition(conditionElement);
definition.addNode(condition);
}
List<Element> forkElements = rootElement.elements("fork");
for (Element forkElement : forkElements) {
Fork fork = parseFork(forkElement);
definition.addNode(fork);
}
List<Element> joinElements = rootElement.elements("join");
for (Element joinElement : joinElements) {
Join join = parseJoin(joinElement);
definition.addNode(join);
}
List<Element> stateElements = rootElement.elements("state");
for (Element stateElement : stateElements) {
State state = parseState(stateElement);
definition.addNode(state);
}
List<Element> taskElements = rootElement.elements("task");
for (Element taskElement : taskElements) {
Task task = parseTask(taskElement);
definition.addNode(task);
}
parseTransitions(
definition, conditionElements, forkElements, joinElements, stateElements, taskElements);
return definition;
}