* @param ee Engine executor that called this method
* @throws OpenBPException On error
*/
public void executeModelObject(ModelObject mo, EngineExecutor ee)
{
TokenContext context = ee.getTokenContext();
NodeSocket entrySocket = context.getCurrentSocket();
SubprocessNode node = (SubprocessNode) entrySocket.getNode();
// If we do not have a sub process, simply continue with the default exit socket
NodeSocket nextSocket = node.getDefaultExitSocket();
ProcessItem subprocess = node.getSubprocess();
// Dynamic sub processes:
// If we have a Process Name parameter and its value is a string...
Object result = TokenContextUtil.getParamValue(context, entrySocket, CoreConstants.DYNAMIC_SUBPROCESS_PARAM_NAME);
if (result != null && result instanceof String)
{
// ...try to lookup and return a corresponding process.
try
{
subprocess = (ProcessItem) context.getExecutingModel().resolveItemRef((String) result, ItemTypes.PROCESS);
}
catch (ModelException re)
{
// Fall thru to the default.
}
}
if (subprocess != null)
{
// The default exit socket of the initial node of the sub process
// that has the same name as the initial node of this sub process
// node is our initial socket for execution of the sub process.
String entryName = entrySocket.getName();
Node subprocessInitialNode = subprocess.getNodeByName(entryName);
if (subprocessInitialNode == null)
{
String msg = LogUtil.error(getClass(), "Initial node $0 called by $1 not found in process $2. [{3}]", entryName, node.getQualifier(), subprocess.getQualifier(), context);
throw new EngineException("InitialNodeNotFound", msg);
}
if (!(subprocessInitialNode instanceof InitialNode))
{
String msg = LogUtil.error(getClass(), "Node $0 called by $1 is not an initial node. [{2}]", subprocessInitialNode.getQualifier(), node.getQualifier(), context);
throw new EngineException("NotAnInitialNode", msg);
}
// Continue with the initial node of the sub process
nextSocket = subprocessInitialNode.getDefaultExitSocket();
if (nextSocket == null)
{
String msg = LogUtil.error(getClass(), "No default exit socket present for sub process initial node $0. [{1}]", subprocessInitialNode.getQualifier(), context);
throw new EngineException("NoDefaultExitSocket", msg);
}
// Push the current position onto the call stack
context.getCallStack().pushSubprocess(entrySocket);
// Create the process variables of the subprocess
EngineUtil.createProcessVariables(subprocess, context);
// Copy the data of the node entry socket in the current context
// to the initial node of the sub process in the new context
EngineUtil.copySocketData(entrySocket, context, nextSocket, context);
}
else
{
String msg = LogUtil.error(getClass(), "Missing sub process for sub process node $0. [{1}]", node.getQualifier(), context);
throw new EngineException("MissingSubprocess", msg);
}
context.setCurrentSocket(nextSocket);
}