private static BPMNDiagram removeConnectedGateways(BPMNDiagram diagram) {
List<Gateway> XOR = getXORGateways(diagram);
Iterator<Flow> iterator = diagram.getFlows().iterator();
while (iterator.hasNext()) {
Flow flow = iterator.next();
if (XOR.contains(flow.getSource())
&& XOR.contains(flow.getTarget())
&& isSplit(diagram, flow.getSource())
&& isSplit(diagram, flow.getTarget())) {
if (!flow.getSource().equals(flow.getTarget())) {
List<Flow> flows = getOutgoingFlows(diagram, flow.getTarget());
for (Flow flow1 : flows) {
diagram.addFlow(flow.getSource(), flow1.getTarget(), "");
}
diagram.removeGateway((Gateway) flow.getTarget());
XOR = getXORGateways(diagram);
} else {
diagram.removeEdge(flow);
}
iterator = diagram.getFlows().iterator();
}
}
return diagram;
}
private static List<Activity> getIncomingActivities(BPMNDiagram diagram, BPMNNode bpmnNode) {
List<Activity> flows = new ArrayList<Activity>();
for (Flow flow : diagram.getFlows()) {
if (flow.getTarget().equals(bpmnNode) && flow.getSource() instanceof Activity) {
flows.add((Activity) flow.getSource());
}
}
return flows;
}
private static List<Flow> getOutgoingFlows(BPMNDiagram diagram, BPMNNode bpmnNode) {
List<Flow> flows = new ArrayList<Flow>();
for (Flow flow : diagram.getFlows()) {
if (flow.getSource().equals(bpmnNode)) {
flows.add(flow);
}
}
return flows;
}
private static List<BPMNNode> getIncomingNodes(BPMNDiagram diagram, BPMNNode bpmnNode) {
List<BPMNNode> flows = new ArrayList<BPMNNode>();
for (Flow flow : diagram.getFlows()) {
if (flow.getTarget().equals(bpmnNode)) {
flows.add(flow.getSource());
}
}
return flows;
}
private static BPMNDiagram removeXORtoAND(BPMNDiagram diagram) {
List<Gateway> XOR = getXORGateways(diagram);
List<Gateway> AND = getANDGateways(diagram);
for (Gateway gateway1 : XOR) {
for (Gateway gateway2 : AND) {
List<Flow> flows = new ArrayList<Flow>();
for (Flow flow : diagram.getFlows()) {
if (flow.getSource().equals(gateway1) && flow.getTarget().equals(gateway2)) {
flows.add(flow);
}
}
if (flows.size() > 1) {
for (int i = 1; i < flows.size(); i++) {
diagram.removeEdge(flows.get(i));
}
}
}
}
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;
}