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 BPMNDiagram mergeActivitiesAfterXOR(BPMNDiagram diagram) {
boolean repeat = true;
loops:
while (repeat) {
repeat = false;
List<Gateway> gateways = getXORGateways(diagram);
for (Gateway gateway : gateways) {
List<Activity> activities = getOutgoingActivities(diagram, gateway);
for (int i = 0; i < activities.size(); i++) {
String label = activities.get(i).getLabel();
for (int j = i + 1; j < activities.size(); j++) {
if (activities.get(j).getLabel().equals(label)) {
diagram =
mergeActivitiesAfterXOR(diagram, gateway, activities.get(i), activities.get(j));
diagram = separateSplitFromJoin(diagram);
diagram = removeXORtoAND(diagram);
diagram = removeConnectedGateways(diagram);
diagram = BPMNSimplifier.removeGatewaysUseless(diagram, diagram.getGateways());
repeat = true;
continue loops;
}
}
}
}
}
return diagram;
}
public static BPMNDiagram mergeDiagram(BPMNDiagram diagram) {
diagram = separateSplitFromJoin(diagram);
diagram = removeXORtoAND(diagram);
diagram = removeConnectedGateways(diagram);
int curr = diagram.getNodes().size() + diagram.getFlows().size();
int size = 0;
while (size != curr) {
mergeActivitiesAfterXOR(diagram);
mergeActivitiesBeforeXOR(diagram);
size = curr;
curr = diagram.getNodes().size() + diagram.getFlows().size();
}
return diagram;
}
private static List<Gateway> getANDGateways(BPMNDiagram diagram) {
List<Gateway> gateways = new ArrayList<Gateway>();
for (Gateway gateway : diagram.getGateways()) {
if (gateway.getGatewayType().equals(Gateway.GatewayType.PARALLEL)) {
gateways.add(gateway);
}
}
return gateways;
}
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<Activity> getOutgoingActivities(BPMNDiagram diagram, BPMNNode bpmnNode) {
List<Activity> flows = new ArrayList<Activity>();
for (Flow flow : diagram.getFlows()) {
if (flow.getSource().equals(bpmnNode) && flow.getTarget() instanceof Activity) {
flows.add((Activity) flow.getTarget());
}
}
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 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;
}
public static void main(String[] args) throws Exception {
System.out.println("This is the stand alone version of the BPMNMiner algorithm proposed in:");
System.out.println();
System.out.println("R. Conforti, M. Dumas, L. García-Bañuelos, and M. La Rosa.");
System.out.println(
"BPMN Miner: Automated discovery of BPMN process models with hierarchical structure.");
System.out.println("Information Systems, 56, pp 284-303, 2016.");
System.out.println();
System.out.println("For more info contact me at [email protected]");
System.out.println("or visit my website www.raffaeleconforti.com");
Scanner console = new Scanner(System.in);
System.out.println("Input file:");
String name = console.nextLine();
while (name.endsWith(" ")) {
name = name.substring(0, name.length() - 1);
}
XFactory factory = new XFactoryMemoryImpl();
XLog log = LogImporter.importFromFile(factory, name);
UIPluginContext fakeContext = new FakePluginContext();
BPMNMinerCommandLine plugin = new BPMNMinerCommandLine();
BPMNDiagram diagram = plugin.mineBPMNModel(fakeContext, log);
System.out.println("Do you want to structure the diagram? (y/n)");
String token = null;
boolean structure = true;
while (token == null) {
token = console.nextLine();
if (token.equalsIgnoreCase("y")) {
structure = true;
} else if (token.equalsIgnoreCase("n")) {
structure = false;
} else {
token = null;
System.out.println("Accepted input Y or N");
System.out.println("Do you want to structure the diagram? (y/n)");
}
}
for (Activity activity : diagram.getActivities()) {
if (activity.getLabel().endsWith("+complete")) {
activity
.getAttributeMap()
.put(
"ProM_Vis_attr_label",
activity.getLabel().substring(0, activity.getLabel().indexOf("+complete")));
}
}
if (structure) {
StructuringService ss = new StructuringService();
diagram = ss.structureDiagram(diagram);
}
if (name.endsWith(".xes")) name = name.substring(0, name.length() - 4);
else if (name.endsWith(".xes.gz")) name = name.substring(0, name.length() - 7);
else if (name.endsWith(".mxml")) name = name.substring(0, name.length() - 5);
else if (name.endsWith(".mxml.gz")) name = name.substring(0, name.length() - 8);
System.out.println("Output file: " + name + ".bpmn");
UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
UIContext context = new UIContext();
UIPluginContext uiPluginContext = context.getMainPluginContext();
BpmnDefinitions.BpmnDefinitionsBuilder definitionsBuilder =
new BpmnDefinitions.BpmnDefinitionsBuilder(uiPluginContext, diagram);
BpmnDefinitions definitions = new BpmnDefinitions("definitions", definitionsBuilder);
StringBuilder sb = new StringBuilder();
sb.append(
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
+ "<definitions xmlns=\"http://www.omg.org/spec/BPMN/20100524/MODEL\"\n "
+ "xmlns:dc=\"http://www.omg.org/spec/DD/20100524/DC\"\n "
+ "xmlns:bpmndi=\"http://www.omg.org/spec/BPMN/20100524/DI\"\n "
+ "xmlns:di=\"http://www.omg.org/spec/DD/20100524/DI\"\n "
+ "xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"\n "
+ "targetNamespace=\"http://www.omg.org/bpmn20\"\n "
+ "xsi:schemaLocation=\"http://www.omg.org/spec/BPMN/20100524/MODEL BPMN20.xsd\">");
sb.append(definitions.exportElements());
sb.append("</definitions>");
FileWriter fileWriter = new FileWriter(new File(name + ".bpmn"));
fileWriter.write(sb.toString());
fileWriter.flush();
fileWriter.close();
}