@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 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);
}
}