private void checkForCompletion(final GraphProcess process) {
if (!process.hasActiveTokens() && process.isArcTokenQueueEmpty() && asyncQueue.isEmpty()) {
process.setState(ProcessState.PendingCompletion);
fireEvent(ProcessEvent.newCompletedEvent(this, process));
finalizeComplete(process);
}
}
@Override
public void finalizeComplete(GraphProcess process) {
process.setState(ProcessState.Completed);
NodeToken parentToken = process.getParentToken();
if (parentToken != null) {
Engine engine = getParentEngine() == null ? newEngine(false) : getParentEngine();
engine.complete(parentToken, Arc.DEFAULT_ARC);
}
}
@Override
public void startProcess(GraphProcess process) {
process.setState(ProcessState.Executing);
fireEvent(ProcessEvent.newStartedEvent(this, process));
arcExecutionStarted = true;
try {
for (Node startNode : process.getGraph().getStartNodes()) {
NodeToken startToken =
getFactory().newNodeToken(process, startNode, new ArrayList<ArcToken>(0));
process.addNodeToken(startToken);
executeNode(process, startToken);
}
executeQueuedArcTokens(process);
} finally {
arcExecutionStarted = false;
drainAsyncQueue(process);
}
if (process.isExecuting()) {
checkForCompletion(process);
}
}
@Override
public void finalizeCancel(GraphProcess process) {
process.setState(ProcessState.Canceled);
}
@Override
public void cancelProcess(GraphProcess process) {
process.setState(ProcessState.PendingCancel);
fireEvent(ProcessEvent.newCanceledEvent(this, process));
finalizeCancel(process);
}