return errors.toArray(new ProcessValidationError[errors.size()]);
}
private void validateNodes(Node[] nodes, List<ProcessValidationError> errors, RuleFlowProcess process) {
for ( int i = 0; i < nodes.length; i++ ) {
final Node node = nodes[i];
if (node instanceof StartNode) {
final StartNode startNode = (StartNode) node;
startNodeFound = true;
if (startNode.getTo() == null) {
errors.add(new ProcessValidationErrorImpl(process,
"Start node '" + node.getName() + "' [" + node.getId() + "] has no outgoing connection."));
}
} else if (node instanceof EndNode) {
final EndNode endNode = (EndNode) node;
endNodeFound = true;
if (endNode.getFrom() == null) {
errors.add(new ProcessValidationErrorImpl(process,
"End node '" + node.getName() + "' [" + node.getId() + "] has no incoming connection."));
}
} else if (node instanceof RuleSetNode) {
final RuleSetNode ruleSetNode = (RuleSetNode) node;
if (ruleSetNode.getFrom() == null && !acceptsNoIncomingConnections(node)) {
errors.add(new ProcessValidationErrorImpl(process,
"RuleSet node '" + node.getName() + "' [" + node.getId() + "] has no incoming connection."));
}
if (ruleSetNode.getTo() == null && !acceptsNoOutgoingConnections(node)) {
errors.add(new ProcessValidationErrorImpl(process,
"RuleSet node '" + node.getName() + "' [" + node.getId() + "] has no outgoing connection."));
}
final String ruleFlowGroup = ruleSetNode.getRuleFlowGroup();
if (ruleFlowGroup == null || "".equals(ruleFlowGroup)) {
errors.add( new ProcessValidationErrorImpl(process,
"RuleSet node '" + node.getName() + "' [" + node.getId() + "] has no ruleflow-group."));
}
if (ruleSetNode.getTimers() != null) {
for (Timer timer: ruleSetNode.getTimers().keySet()) {
validateTimer(timer, node, process, errors);
}
}
} else if (node instanceof Split) {
final Split split = (Split) node;
if (split.getType() == Split.TYPE_UNDEFINED) {
errors.add(new ProcessValidationErrorImpl(process,
"Split node '" + node.getName() + "' [" + node.getId() + "] has no type."));
}
if (split.getFrom() == null && !acceptsNoIncomingConnections(node)) {
errors.add(new ProcessValidationErrorImpl(process,
"Split node '" + node.getName() + "' [" + node.getId() + "] has no incoming connection."));
}
if (split.getDefaultOutgoingConnections().size() < 2) {
errors.add(new ProcessValidationErrorImpl(process,
"Split node '" + node.getName() + "' [" + node.getId() + "] does not have more than one outgoing connection: " + split.getOutgoingConnections().size() + "."));
}
if (split.getType() == Split.TYPE_XOR || split.getType() == Split.TYPE_OR ) {
for ( final Iterator<Connection> it = split.getDefaultOutgoingConnections().iterator(); it.hasNext(); ) {
final Connection connection = it.next();
if (split.getConstraint(connection) == null) {
errors.add(new ProcessValidationErrorImpl(process,
"Split node '" + node.getName() + "' [" + node.getId() + "] does not have a constraint for " + connection.toString() + "."));
}
}
}
} else if (node instanceof Join) {
final Join join = (Join) node;
if (join.getType() == Join.TYPE_UNDEFINED) {
errors.add(new ProcessValidationErrorImpl(process,
"Join node '" + node.getName() + "' [" + node.getId() + "] has no type."));
}
if (join.getDefaultIncomingConnections().size() < 2) {
errors.add(new ProcessValidationErrorImpl(process,
"Join node '" + node.getName() + "' [" + node.getId() + "] does not have more than one incoming connection: " + join.getIncomingConnections().size() + "."));
}
if (join.getTo() == null && !acceptsNoOutgoingConnections(node)) {
errors.add(new ProcessValidationErrorImpl(process,
"Join node '" + node.getName() + "' [" + node.getId() + "] has no outgoing connection."));
}
if (join.getType() == Join.TYPE_N_OF_M) {
String n = join.getN();
if (!n.startsWith("#{") || !n.endsWith("}")) {
try {
new Integer(n);
} catch (NumberFormatException e) {
errors.add(new ProcessValidationErrorImpl(process,
"Join node '" + node.getName() + "' [" + node.getId() + "] has illegal n value: " + n));
}
}
}
} else if (node instanceof MilestoneNode) {
final MilestoneNode milestone = (MilestoneNode) node;
if (milestone.getFrom() == null && !acceptsNoIncomingConnections(node)) {
errors.add(new ProcessValidationErrorImpl(process,
"Milestone node '" + node.getName() + "' [" + node.getId() + "] has no incoming connection."));
}
if (milestone.getTo() == null && !acceptsNoOutgoingConnections(node)) {
errors.add( new ProcessValidationErrorImpl(process,
"Milestone node '" + node.getName() + "' [" + node.getId() + "] has no outgoing connection."));
}
if (milestone.getConstraint() == null) {
errors.add( new ProcessValidationErrorImpl(process,
"Milestone node '" + node.getName() + "' [" + node.getId() + "] has no constraint."));
}
if (milestone.getTimers() != null) {
for (Timer timer: milestone.getTimers().keySet()) {
validateTimer(timer, node, process, errors);
}
}
} else if (node instanceof StateNode) {
final StateNode stateNode = (StateNode) node;
if (stateNode.getDefaultIncomingConnections().size() == 0 && !acceptsNoIncomingConnections(node)) {
errors.add(new ProcessValidationErrorImpl(process,
"State node '" + node.getName() + "' [" + node.getId() + "] has no incoming connection"));
}
}
else if (node instanceof SubProcessNode) {
final SubProcessNode subProcess = (SubProcessNode) node;
if (subProcess.getFrom() == null && !acceptsNoIncomingConnections(node)) {
errors.add(new ProcessValidationErrorImpl(process,
"SubProcess node '" + node.getName() + "' [" + node.getId() + "] has no incoming connection."));
}
if (subProcess.getTo() == null && !acceptsNoOutgoingConnections(node)) {
errors.add(new ProcessValidationErrorImpl(process,
"SubProcess node '" + node.getName() + "' [" + node.getId() + "] has no outgoing connection."));
}
if (subProcess.getProcessId() == null) {
errors.add(new ProcessValidationErrorImpl(process,
"SubProcess node '" + node.getName() + "' [" + node.getId() + "] has no process id."));
}
if (subProcess.getTimers() != null) {
for (Timer timer: subProcess.getTimers().keySet()) {
validateTimer(timer, node, process, errors);
}
}
} else if (node instanceof ActionNode) {
final ActionNode actionNode = (ActionNode) node;
if (actionNode.getFrom() == null && !acceptsNoIncomingConnections(node)) {
errors.add(new ProcessValidationErrorImpl(process,
"Action node '" + node.getName() + "' [" + node.getId() + "] has no incoming connection."));
}
if (actionNode.getTo() == null && !acceptsNoOutgoingConnections(node)) {
errors.add(new ProcessValidationErrorImpl(process,
"Action node '" + node.getName() + "' [" + node.getId() + "] has no outgoing connection."));
}
if (actionNode.getAction() == null) {
errors.add(new ProcessValidationErrorImpl(process,
"Action node '" + node.getName() + "' [" + node.getId() + "] has no action."));
} else {
if (actionNode.getAction() instanceof DroolsConsequenceAction) {
DroolsConsequenceAction droolsAction = (DroolsConsequenceAction) actionNode.getAction();
String actionString = droolsAction.getConsequence();
if (actionString == null) {
errors.add(new ProcessValidationErrorImpl(process,
"Action node '" + node.getName() + "' [" + node.getId() + "] has empty action."));
} else if( "mvel".equals( droolsAction.getDialect() ) ) {
try {
ExpressionCompiler compiler = new ExpressionCompiler(actionString);
compiler.setVerifying(true);
ParserContext parserContext = new ParserContext();
//parserContext.setStrictTypeEnforcement(true);
compiler.compile(parserContext);
List<ErrorDetail> mvelErrors = parserContext.getErrorList();
if (mvelErrors != null) {
for (Iterator<ErrorDetail> iterator = mvelErrors.iterator(); iterator.hasNext(); ) {
ErrorDetail error = iterator.next();
errors.add(new ProcessValidationErrorImpl(process,
"Action node '" + node.getName() + "' [" + node.getId() + "] has invalid action: " + error.getMessage() + "."));
}
}
} catch (Throwable t) {
errors.add(new ProcessValidationErrorImpl(process,
"Action node '" + node.getName() + "' [" + node.getId() + "] has invalid action: " + t.getMessage() + "."));
}
}
}
}
} else if (node instanceof WorkItemNode) {
final WorkItemNode workItemNode = (WorkItemNode) node;
if (workItemNode.getFrom() == null && !acceptsNoIncomingConnections(node)) {
errors.add(new ProcessValidationErrorImpl(process,
"WorkItem node '" + node.getName() + "' [" + node.getId() + "] has no incoming connection."));
}
if (workItemNode.getTo() == null && !acceptsNoOutgoingConnections(node)) {
errors.add(new ProcessValidationErrorImpl(process,
"WorkItem node '" + node.getName() + "' [" + node.getId() + "] has no outgoing connection."));
}
if (workItemNode.getWork() == null) {
errors.add(new ProcessValidationErrorImpl(process,
"WorkItem node '" + node.getName() + "' [" + node.getId() + "] has no work specified."));
} else {
Work work = workItemNode.getWork();
if (work.getName() == null) {
errors.add(new ProcessValidationErrorImpl(process,
"WorkItem node '" + node.getName() + "' [" + node.getId() + "] has no work name."));
}
}
if (workItemNode.getTimers() != null) {
for (Timer timer: workItemNode.getTimers().keySet()) {
validateTimer(timer, node, process, errors);
}
}
} else if (node instanceof ForEachNode) {
final ForEachNode forEachNode = (ForEachNode) node;
String variableName = forEachNode.getVariableName();
if (variableName == null || "".equals(variableName)) {
errors.add(new ProcessValidationErrorImpl(process,
"ForEach node '" + node.getName() + "' [" + node.getId() + "] has no variable name"));
}
String collectionExpression = forEachNode.getCollectionExpression();
if (collectionExpression == null || "".equals(collectionExpression)) {
errors.add(new ProcessValidationErrorImpl(process,
"ForEach node '" + node.getName() + "' [" + node.getId() + "] has no collection expression"));
}
if (forEachNode.getDefaultIncomingConnections().size() == 0 && !acceptsNoIncomingConnections(node)) {
errors.add(new ProcessValidationErrorImpl(process,
"ForEach node '" + node.getName() + "' [" + node.getId() + "] has no incoming connection"));
}
if (forEachNode.getDefaultOutgoingConnections().size() == 0 && !acceptsNoOutgoingConnections(node)) {
errors.add(new ProcessValidationErrorImpl(process,
"ForEach node '" + node.getName() + "' [" + node.getId() + "] has no outgoing connection"));
}
// TODO: check, if no linked connections, for start and end node(s)
// if (forEachNode.getLinkedIncomingNode(org.drools.workflow.core.Node.CONNECTION_DEFAULT_TYPE) == null) {
// errors.add(new ProcessValidationErrorImpl(process,
// "ForEach node '" + node.getName() + "' [" + node.getId() + "] has no linked start node"));
// }
// if (forEachNode.getLinkedOutgoingNode(org.drools.workflow.core.Node.CONNECTION_DEFAULT_TYPE) == null) {
// errors.add(new ProcessValidationErrorImpl(process,
// "ForEach node '" + node.getName() + "' [" + node.getId() + "] has no linked end node"));
// }
validateNodes(forEachNode.getNodes(), errors, process);
} else if (node instanceof DynamicNode) {
final DynamicNode dynamicNode = (DynamicNode) node;
if (dynamicNode.getDefaultIncomingConnections().size() == 0) {
errors.add(new ProcessValidationErrorImpl(process,
"Dynamic node '" + node.getName() + "' [" + node.getId() + "] has no incoming connection"));
}
if (dynamicNode.getDefaultOutgoingConnections().size() == 0) {
errors.add(new ProcessValidationErrorImpl(process,
"Dynamic node '" + node.getName() + "' [" + node.getId() + "] has no outgoing connection"));
}
validateNodes(dynamicNode.getNodes(), errors, process);
} else if (node instanceof CompositeNode) {
final CompositeNode compositeNode = (CompositeNode) node;
for (Map.Entry<String, NodeAndType> inType: compositeNode.getLinkedIncomingNodes().entrySet()) {
if (compositeNode.getIncomingConnections(inType.getKey()).size() == 0 && !acceptsNoIncomingConnections(node)) {
errors.add(new ProcessValidationErrorImpl(process,
"Composite node '" + node.getName() + "' [" + node.getId() + "] has no incoming connection for type " + inType.getKey()));
}
if (inType.getValue().getNode() == null && !acceptsNoOutgoingConnections(node)) {
errors.add(new ProcessValidationErrorImpl(process,
"Composite node '" + node.getName() + "' [" + node.getId() + "] has invalid linked incoming node for type " + inType.getKey()));
}
}
for (Map.Entry<String, NodeAndType> outType: compositeNode.getLinkedOutgoingNodes().entrySet()) {
if (compositeNode.getOutgoingConnections(outType.getKey()).size() == 0) {
errors.add(new ProcessValidationErrorImpl(process,
"Composite node '" + node.getName() + "' [" + node.getId() + "] has no outgoing connection for type " + outType.getKey()));
}
if (outType.getValue().getNode() == null) {
errors.add(new ProcessValidationErrorImpl(process,
"Composite node '" + node.getName() + "' [" + node.getId() + "] has invalid linked outgoing node for type " + outType.getKey()));
}
}
validateNodes(compositeNode.getNodes(), errors, process);
} else if (node instanceof EventNode) {
final EventNode eventNode = (EventNode) node;
if (eventNode.getEventFilters().size() == 0) {
errors.add(new ProcessValidationErrorImpl(process,
"Event node '" + node.getName() + "' [" + node.getId() + "] should specify an event type"));
}
if (eventNode.getDefaultOutgoingConnections().size() == 0) {
errors.add(new ProcessValidationErrorImpl(process,
"Event node '" + node.getName() + "' [" + node.getId() + "] has no outgoing connection"));
}
} else if (node instanceof FaultNode) {
endNodeFound = true;
final FaultNode faultNode = (FaultNode) node;
if (faultNode.getFrom() == null && !acceptsNoIncomingConnections(node)) {
errors.add(new ProcessValidationErrorImpl(process,
"Fault node '" + node.getName() + "' [" + node.getId() + "] has no incoming connection."));
}
if (faultNode.getFaultName() == null) {
errors.add(new ProcessValidationErrorImpl(process,
"Fault node '" + node.getName() + "' [" + node.getId() + "] has no fault name."));
}
} else if (node instanceof TimerNode) {
TimerNode timerNode = (TimerNode) node;
if (timerNode.getFrom() == null && !acceptsNoIncomingConnections(node)) {
errors.add(new ProcessValidationErrorImpl(process,
"Timer node '" + node.getName() + "' [" + node.getId() + "] has no incoming connection."));
}
if (timerNode.getTo() == null && !acceptsNoOutgoingConnections(node)) {
errors.add(new ProcessValidationErrorImpl(process,
"Timer node '" + node.getName() + "' [" + node.getId() + "] has no outgoing connection."));
}
if (timerNode.getTimer() == null) {
errors.add(new ProcessValidationErrorImpl(process,
"Timer node '" + node.getName() + "' [" + node.getId() + "] has no timer specified."));
} else {
validateTimer(timerNode.getTimer(), node, process, errors);
}
} else {
errors.add(new ProcessValidationErrorImpl(process,
"Unknown node type '" + node.getClass().getName() + "'"));
}
}
}