private void chooseTokenFlow(BaseElement element, Token token, boolean processElementItself) { if (processElementItself) { nextElement = element; } else { if (element.getOutFlows().size() > 1) { chooseFlowBasedOnPropablity( element, new IChoosenFlow() { @Override public void process(SequenceFlow flow) { nextElement = flow.getTarget(); } }); } else { nextElement = element.getOutFlows().get(0).getTarget(); } } logger.debug("Chosen flow: " + nextElement.getName()); if (nextElement instanceof Task) { Task targetTask = (Task) nextElement; token.task = targetTask; ResourceTypeVariant resourceTypeVariant = targetTask.getVariant(); tokensWaiting.get(resourceTypeVariant).add(token); } else if (nextElement instanceof Gateway) { chooseTokenFlow(nextElement, token); } else if (nextElement instanceof ParallelGateway) { ParallelGateway parallelGateway = (ParallelGateway) nextElement; if (parallelGateway.isDiverging()) { for (SequenceFlow flow : parallelGateway.getOutFlows()) { MultiToken subToken = new MultiToken(); subToken.originalToken = token; chooseTokenFlow(flow.getTarget(), subToken, true); } } else { Map<Token, Integer> arrivedTokensMap = arrivedTokens.get(parallelGateway); Token originalToken = ((MultiToken) token).originalToken; Integer arrivedTokensNumber = arrivedTokensMap.get(originalToken); if (arrivedTokensNumber == null) { arrivedTokensNumber = Integer.valueOf(0); } if (arrivedTokensNumber == parallelGateway.getInFlows().size() - 1) { chooseTokenFlow(parallelGateway, originalToken); } else { arrivedTokensMap.put(originalToken, arrivedTokensNumber + 1); } } } else if (nextElement instanceof EndEvent) { token.endTime = currentTime; tokensFinished++; logger.debug( tokensFinished + ". token finished at " + currentTime + " in " + (token.endTime - token.startTime)); } }
public boolean canSimulate() { for (Task task : model.getTasks()) { ResourceTypeVariant variant = task.getVariant(); if (variant == null || variant.getInstances().isEmpty()) { return false; } } return true; }