public static void linkBoundaryEvents(NodeContainer nodeContainer) {
for (Node node : nodeContainer.getNodes()) {
if (node instanceof EventNode) {
String attachedTo = (String) node.getMetaData().get("AttachedTo");
if (attachedTo != null) {
String type = ((EventTypeFilter) ((EventNode) node).getEventFilters().get(0)).getType();
Node attachedNode = null;
try {
// remove starting _
String attachedToString = attachedTo.substring(1);
// remove ids of parent nodes
attachedToString = attachedToString.substring(attachedToString.lastIndexOf("-") + 1);
attachedNode = nodeContainer.getNode(new Integer(attachedToString));
} catch (NumberFormatException e) {
// try looking for a node with same "UniqueId" (in metadata)
for (Node subnode : nodeContainer.getNodes()) {
if (attachedTo.equals(subnode.getMetaData().get("UniqueId"))) {
attachedNode = subnode;
break;
}
}
if (attachedNode == null) {
throw new IllegalArgumentException("Could not find node to attach to: " + attachedTo);
}
}
if (type.startsWith("Escalation-")) {
boolean cancelActivity = (Boolean) node.getMetaData().get("CancelActivity");
CompositeContextNode compositeNode = (CompositeContextNode) attachedNode;
ExceptionScope exceptionScope =
(ExceptionScope) compositeNode.getDefaultContext(ExceptionScope.EXCEPTION_SCOPE);
if (exceptionScope == null) {
exceptionScope = new ExceptionScope();
compositeNode.addContext(exceptionScope);
compositeNode.setDefaultContext(exceptionScope);
}
String escalationCode = (String) node.getMetaData().get("EscalationEvent");
ActionExceptionHandler exceptionHandler = new ActionExceptionHandler();
exceptionHandler.setAction(
new DroolsConsequenceAction(
"java",
(cancelActivity
? "((org.drools.workflow.instance.NodeInstance) kcontext.getNodeInstance()).cancel();"
: "")
+ "kcontext.getProcessInstance().signalEvent(\"Escalation-"
+ attachedTo
+ "-"
+ escalationCode
+ "\", null);"));
exceptionScope.setExceptionHandler(escalationCode, exceptionHandler);
} else if (type.startsWith("Error-")) {
CompositeContextNode compositeNode = (CompositeContextNode) attachedNode;
ExceptionScope exceptionScope =
(ExceptionScope) compositeNode.getDefaultContext(ExceptionScope.EXCEPTION_SCOPE);
if (exceptionScope == null) {
exceptionScope = new ExceptionScope();
compositeNode.addContext(exceptionScope);
compositeNode.setDefaultContext(exceptionScope);
}
String errorCode = (String) node.getMetaData().get("ErrorEvent");
ActionExceptionHandler exceptionHandler = new ActionExceptionHandler();
exceptionHandler.setAction(
new DroolsConsequenceAction(
"java",
"((org.drools.workflow.instance.NodeInstance) kcontext.getNodeInstance()).cancel();"
+ "kcontext.getProcessInstance().signalEvent(\"Error-"
+ attachedTo
+ "-"
+ errorCode
+ "\", null);"));
exceptionScope.setExceptionHandler(errorCode, exceptionHandler);
} else if (type.startsWith("Timer-")) {
boolean cancelActivity = (Boolean) node.getMetaData().get("CancelActivity");
CompositeContextNode compositeNode = (CompositeContextNode) attachedNode;
String timeCycle = (String) node.getMetaData().get("TimeCycle");
Timer timer = new Timer();
timer.setDelay(timeCycle);
compositeNode.addTimer(
timer,
new DroolsConsequenceAction(
"java",
(cancelActivity
? "((org.drools.workflow.instance.NodeInstance) kcontext.getNodeInstance()).cancel();"
: "")
+ "kcontext.getProcessInstance().signalEvent(\"Timer-"
+ attachedTo
+ "-"
+ timeCycle
+ "\", null);"));
} else if (type.startsWith("Compensate-")) {
String uniqueId = (String) node.getMetaData().get("UniqueId");
String eventType = "Compensate-" + uniqueId;
((EventTypeFilter) ((EventNode) node).getEventFilters().get(0)).setType(eventType);
}
}
}
}
}
public static void linkConnections(NodeContainer nodeContainer, List<SequenceFlow> connections) {
if (connections != null) {
for (SequenceFlow connection : connections) {
String sourceRef = connection.getSourceRef();
String targetRef = connection.getTargetRef();
Node source = null;
Node target = null;
try {
// remove starting _
sourceRef = sourceRef.substring(1);
// remove ids of parent nodes
sourceRef = sourceRef.substring(sourceRef.lastIndexOf("-") + 1);
source = nodeContainer.getNode(new Integer(sourceRef));
} catch (NumberFormatException e) {
// try looking for a node with same "UniqueId" (in metadata)
for (Node node : nodeContainer.getNodes()) {
if (connection.getSourceRef().equals(node.getMetaData().get("UniqueId"))) {
source = node;
break;
}
}
if (source == null) {
throw new IllegalArgumentException(
"Could not find source node for connection:" + connection.getSourceRef());
}
}
try {
// remove starting _
targetRef = targetRef.substring(1);
// remove ids of parent nodes
targetRef = targetRef.substring(targetRef.lastIndexOf("-") + 1);
target = nodeContainer.getNode(new Integer(targetRef));
} catch (NumberFormatException e) {
// try looking for a node with same "UniqueId" (in metadata)
for (Node node : nodeContainer.getNodes()) {
if (connection.getTargetRef().equals(node.getMetaData().get("UniqueId"))) {
target = node;
break;
}
}
if (target == null) {
throw new IllegalArgumentException(
"Could not find target node for connection:" + connection.getTargetRef());
}
}
Connection result =
new ConnectionImpl(
source, NodeImpl.CONNECTION_DEFAULT_TYPE,
target, NodeImpl.CONNECTION_DEFAULT_TYPE);
result.setMetaData("bendpoints", connection.getBendpoints());
if (source instanceof Split) {
Split split = (Split) source;
Constraint constraint = new ConstraintImpl();
String defaultConnection = (String) split.getMetaData("Default");
if (defaultConnection != null && defaultConnection.equals(connection.getId())) {
constraint.setDefault(true);
}
if (connection.getName() != null) {
constraint.setName(connection.getName());
} else {
constraint.setName("");
}
if (connection.getType() != null) {
constraint.setType(connection.getType());
} else {
constraint.setType("code");
}
if (connection.getLanguage() != null) {
constraint.setDialect(connection.getLanguage());
}
if (connection.getExpression() != null) {
constraint.setConstraint(connection.getExpression());
}
split.addConstraint(
new ConnectionRef(target.getId(), NodeImpl.CONNECTION_DEFAULT_TYPE), constraint);
}
}
}
}