private static BPMNDiagram separateSplitFromJoin(BPMNDiagram diagram) {
Iterator<Gateway> iterator = getXORGateways(diagram).iterator();
while (iterator.hasNext()) {
Gateway gateway = iterator.next();
if (isSplit(diagram, gateway) && isJoin(diagram, gateway)) {
List<BPMNNode> incoming = getIncomingNodes(diagram, gateway);
List<BPMNNode> outgoing = getOutgoingNodes(diagram, gateway);
Gateway split = diagram.addGateway("", Gateway.GatewayType.DATABASED);
Gateway join = diagram.addGateway("", Gateway.GatewayType.DATABASED);
for (BPMNNode node : incoming) {
diagram.addFlow(node, join, "");
}
for (BPMNNode node : outgoing) {
diagram.addFlow(split, node, "");
}
diagram.addFlow(join, split, "");
diagram.removeGateway(gateway);
iterator = getXORGateways(diagram).iterator();
}
}
return diagram;
}
private static BPMNDiagram mergeActivitiesAfterXOR(
BPMNDiagram diagram, Gateway gateway, Activity activity1, Activity activity2) {
List<Flow> outgoingFlows1 = getOutgoingFlows(diagram, activity1);
List<Flow> outgoingFlows2 = getOutgoingFlows(diagram, activity2);
List<Flow> outgoingFlows3 = getOutgoingFlows(diagram, gateway);
List<Flow> incomingFlows = getIncomingFlows(diagram, gateway);
String label = activity1.getLabel();
Activity activity = diagram.addActivity(label, false, false, false, false, false);
Set<BPMNNode> outgoingNodes1 = new UnifiedSet<BPMNNode>();
for (Flow flow : outgoingFlows1) {
outgoingNodes1.add(flow.getTarget());
}
for (Flow flow : outgoingFlows2) {
outgoingNodes1.add(flow.getTarget());
}
if (outgoingNodes1.size() > 1) {
Gateway gateway1 = diagram.addGateway("", Gateway.GatewayType.DATABASED);
Set<BPMNNode> outgoingNodes = new UnifiedSet<BPMNNode>();
for (Flow flow : outgoingFlows1) {
if (!outgoingNodes.contains(flow.getTarget())) {
outgoingNodes.add(flow.getTarget());
diagram.addFlow(gateway1, flow.getTarget(), "");
}
}
for (Flow flow : outgoingFlows2) {
if (!outgoingNodes.contains(flow.getTarget())) {
outgoingNodes.add(flow.getTarget());
diagram.addFlow(gateway1, flow.getTarget(), "");
}
}
diagram.addFlow(activity, gateway1, "");
} else if (outgoingNodes1.size() > 0) {
diagram.addFlow(activity, outgoingNodes1.toArray(new BPMNNode[1])[0], "");
}
diagram.removeActivity(activity1);
diagram.removeActivity(activity2);
if (outgoingFlows3.size() == 2) {
for (Flow flow : incomingFlows) {
diagram.addFlow(flow.getSource(), activity, "");
}
diagram.removeGateway(gateway);
} else {
diagram.addFlow(gateway, activity, "");
}
// if(outgoingNodes.size() == 1) {
// BPMNNode node = outgoingNodes.toArray(new BPMNNode[1])[0];
// if(node instanceof Gateway) {
// Gateway gateway2 = (Gateway) node;
// if(gateway2.getGatewayType().equals(Gateway.GatewayType.DATABASED)) {
// List<BPMNNode> list = new ArrayList<BPMNNode>();
// for(Flow flow: diagram.getFlows()) {
// if(flow.getSource().equals(gateway2)) {
// list.add(flow.getTarget());
// }
// }
// for(BPMNNode node1 : list) {
// diagram.addFlow(activity, node1, "");
// }
// diagram.removeGateway(gateway1);
// diagram.removeGateway(gateway2);
// }
// }
// }
// }
return diagram;
}