public BpmnModel convertToBpmnModel(XMLStreamReader xtr) {
BpmnModel model = new BpmnModel();
try {
Process activeProcess = null;
List<SubProcess> activeSubProcessList = new ArrayList<SubProcess>();
while (xtr.hasNext()) {
try {
xtr.next();
} catch (Exception e) {
LOGGER.error("Error reading XML document", e);
throw new XMLException("Error reading XML", e);
}
if (xtr.isEndElement() && ELEMENT_SUBPROCESS.equals(xtr.getLocalName())) {
activeSubProcessList.remove(activeSubProcessList.size() - 1);
}
if (xtr.isEndElement() && ELEMENT_TRANSACTION.equals(xtr.getLocalName())) {
activeSubProcessList.remove(activeSubProcessList.size() - 1);
}
if (xtr.isStartElement() == false) continue;
if (ELEMENT_DEFINITIONS.equals(xtr.getLocalName())) {
model.setTargetNamespace(xtr.getAttributeValue(null, TARGET_NAMESPACE_ATTRIBUTE));
for (int i = 0; i < xtr.getNamespaceCount(); i++) {
String prefix = xtr.getNamespacePrefix(i);
if (prefix != null) {
model.addNamespace(prefix, xtr.getNamespaceURI(i));
}
}
} else if (ELEMENT_SIGNAL.equals(xtr.getLocalName())) {
new SignalParser().parse(xtr, model);
} else if (ELEMENT_MESSAGE.equals(xtr.getLocalName())) {
new MessageParser().parse(xtr, model);
} else if (ELEMENT_ERROR.equals(xtr.getLocalName())) {
if (StringUtils.isNotEmpty(xtr.getAttributeValue(null, ATTRIBUTE_ID))) {
model.addError(
xtr.getAttributeValue(null, ATTRIBUTE_ID),
xtr.getAttributeValue(null, ATTRIBUTE_ERROR_CODE));
}
} else if (ELEMENT_IMPORT.equals(xtr.getLocalName())) {
new ImportParser().parse(xtr, model);
} else if (ELEMENT_ITEM_DEFINITION.equals(xtr.getLocalName())) {
new ItemDefinitionParser().parse(xtr, model);
} else if (ELEMENT_INTERFACE.equals(xtr.getLocalName())) {
new InterfaceParser().parse(xtr, model);
} else if (ELEMENT_IOSPECIFICATION.equals(xtr.getLocalName())) {
new IOSpecificationParser().parseChildElement(xtr, activeProcess, model);
} else if (ELEMENT_PARTICIPANT.equals(xtr.getLocalName())) {
if (StringUtils.isNotEmpty(xtr.getAttributeValue(null, ATTRIBUTE_ID))) {
Pool pool = new Pool();
pool.setId(xtr.getAttributeValue(null, ATTRIBUTE_ID));
pool.setName(xtr.getAttributeValue(null, ATTRIBUTE_NAME));
pool.setProcessRef(xtr.getAttributeValue(null, ATTRIBUTE_PROCESS_REF));
model.getPools().add(pool);
}
} else if (ELEMENT_PROCESS.equals(xtr.getLocalName())) {
Process process = new ProcessParser().parse(xtr, model);
if (process != null) {
activeProcess = process;
}
} else if (ELEMENT_POTENTIAL_STARTER.equals(xtr.getLocalName())) {
new PotentialStarterParser().parse(xtr, activeProcess);
} else if (ELEMENT_LANE.equals(xtr.getLocalName())) {
new LaneParser().parse(xtr, activeProcess);
} else if (ELEMENT_DOCUMENTATION.equals(xtr.getLocalName())) {
BaseElement parentElement = null;
if (activeSubProcessList.size() > 0) {
parentElement = activeSubProcessList.get(activeSubProcessList.size() - 1);
} else if (activeProcess != null) {
parentElement = activeProcess;
}
new DocumentationParser().parseChildElement(xtr, parentElement, model);
} else if (ELEMENT_SUBPROCESS.equals(xtr.getLocalName())) {
new SubProcessParser().parse(xtr, activeSubProcessList, activeProcess);
} else if (ELEMENT_TRANSACTION.equals(xtr.getLocalName())) {
new SubProcessParser().parse(xtr, activeSubProcessList, activeProcess);
} else if (ELEMENT_DI_SHAPE.equals(xtr.getLocalName())) {
new BpmnShapeParser().parse(xtr, model);
} else if (ELEMENT_DI_EDGE.equals(xtr.getLocalName())) {
new BpmnEdgeParser().parse(xtr, model);
} else if (ELEMENT_EXECUTION_LISTENER.equals(xtr.getLocalName())) {
new ExecutionListenerParser().parseChildElement(xtr, activeProcess, model);
} else {
if (activeSubProcessList.size() > 0
&& ELEMENT_EXTENSIONS.equalsIgnoreCase(xtr.getLocalName())) {
new ExecutionListenerParser()
.parseChildElement(
xtr, activeSubProcessList.get(activeSubProcessList.size() - 1), model);
} else if (activeSubProcessList.size() > 0
&& ELEMENT_MULTIINSTANCE.equalsIgnoreCase(xtr.getLocalName())) {
new MultiInstanceParser()
.parseChildElement(
xtr, activeSubProcessList.get(activeSubProcessList.size() - 1), model);
} else if (convertersToBpmnMap.containsKey(xtr.getLocalName())) {
if (activeProcess.isExecutable()) {
Class<? extends BaseBpmnXMLConverter> converterClass =
convertersToBpmnMap.get(xtr.getLocalName());
BaseBpmnXMLConverter converter = converterClass.newInstance();
if (userTaskFormTypes != null && ELEMENT_TASK_USER.equals(xtr.getLocalName())) {
UserTaskXMLConverter userTaskConverter = (UserTaskXMLConverter) converter;
for (String formType : userTaskFormTypes) {
userTaskConverter.addFormType(formType);
}
} else if (startEventFormTypes != null
&& ELEMENT_EVENT_START.equals(xtr.getLocalName())) {
StartEventXMLConverter startEventConverter = (StartEventXMLConverter) converter;
for (String formType : startEventFormTypes) {
startEventConverter.addFormType(formType);
}
}
converter.convertToBpmnModel(xtr, model, activeProcess, activeSubProcessList);
}
}
}
}
for (Process process : model.getProcesses()) {
processFlowElements(process.getFlowElements(), process);
}
} catch (Exception e) {
LOGGER.error("Error processing BPMN document", e);
throw new XMLException("Error processing BPMN document", e);
}
return model;
}
public static void writeBPMNDI(BpmnModel model, XMLStreamWriter xtw) throws Exception {
// BPMN DI information
xtw.writeStartElement(BPMNDI_PREFIX, ELEMENT_DI_DIAGRAM, BPMNDI_NAMESPACE);
String processId = null;
if (model.getPools().size() > 0) {
processId = "Collaboration";
} else {
processId = model.getMainProcess().getId();
}
xtw.writeAttribute(ATTRIBUTE_ID, "BPMNDiagram_" + processId);
xtw.writeStartElement(BPMNDI_PREFIX, ELEMENT_DI_PLANE, BPMNDI_NAMESPACE);
xtw.writeAttribute(ATTRIBUTE_DI_BPMNELEMENT, processId);
xtw.writeAttribute(ATTRIBUTE_ID, "BPMNPlane_" + processId);
// System.out.println("DI EXPORT");
for (String elementId : model.getLocationMap().keySet()) {
if (model.getFlowElement(elementId) != null
|| model.getArtifact(elementId) != null
|| model.getPool(elementId) != null
|| model.getLane(elementId) != null) {
xtw.writeStartElement(BPMNDI_PREFIX, ELEMENT_DI_SHAPE, BPMNDI_NAMESPACE);
xtw.writeAttribute(ATTRIBUTE_DI_BPMNELEMENT, elementId);
xtw.writeAttribute(ATTRIBUTE_ID, "BPMNShape_" + elementId);
GraphicInfo graphicInfo = model.getGraphicInfo(elementId);
FlowElement flowElement = model.getFlowElement(elementId);
if (flowElement != null
&& flowElement instanceof SubProcess
&& graphicInfo.getExpanded() != null) {
xtw.writeAttribute(ATTRIBUTE_DI_IS_EXPANDED, String.valueOf(graphicInfo.getExpanded()));
}
if (flowElement == null) {
boolean foundLane = false;
for (Pool pool : model.getPools()) {
if (foundLane) {
break;
}
if (elementId.equals(pool.getId())) {
if (graphicInfo.getHorizontal() != null) {
xtw.writeAttribute(
ATTRIBUTE_DI_IS_HORIZONTAL, String.valueOf(graphicInfo.getHorizontal()));
}
} else {
Process process = model.getProcess(pool.getId());
if (process != null) {
for (Lane lane : process.getLanes()) {
if (elementId.equals(lane.getId())) {
foundLane = true;
if (graphicInfo.getHorizontal() != null) {
xtw.writeAttribute(
ATTRIBUTE_DI_IS_HORIZONTAL, String.valueOf(graphicInfo.getHorizontal()));
}
break;
}
}
}
}
}
}
xtw.writeStartElement(OMGDC_PREFIX, ELEMENT_DI_BOUNDS, OMGDC_NAMESPACE);
xtw.writeAttribute(ATTRIBUTE_DI_HEIGHT, "" + graphicInfo.getHeight());
xtw.writeAttribute(ATTRIBUTE_DI_WIDTH, "" + graphicInfo.getWidth());
xtw.writeAttribute(ATTRIBUTE_DI_X, "" + graphicInfo.getX());
xtw.writeAttribute(ATTRIBUTE_DI_Y, "" + graphicInfo.getY());
xtw.writeEndElement();
xtw.writeEndElement();
}
}
for (String elementId : model.getFlowLocationMap().keySet()) {
if (model.getFlowElement(elementId) != null || model.getArtifact(elementId) != null) {
xtw.writeStartElement(BPMNDI_PREFIX, ELEMENT_DI_EDGE, BPMNDI_NAMESPACE);
xtw.writeAttribute(ATTRIBUTE_DI_BPMNELEMENT, elementId);
xtw.writeAttribute(ATTRIBUTE_ID, "BPMNEdge_" + elementId);
List<GraphicInfo> graphicInfoList = model.getFlowLocationGraphicInfo(elementId);
for (GraphicInfo graphicInfo : graphicInfoList) {
xtw.writeStartElement(OMGDI_PREFIX, ELEMENT_DI_WAYPOINT, OMGDI_NAMESPACE);
xtw.writeAttribute(ATTRIBUTE_DI_X, "" + graphicInfo.getX());
xtw.writeAttribute(ATTRIBUTE_DI_Y, "" + graphicInfo.getY());
xtw.writeEndElement();
}
GraphicInfo labelGraphicInfo = model.getLabelGraphicInfo(elementId);
FlowElement flowElement = model.getFlowElement(elementId);
if (labelGraphicInfo != null
&& flowElement != null
&& StringUtils.isNotEmpty(flowElement.getName())) {
xtw.writeStartElement(BPMNDI_PREFIX, ELEMENT_DI_LABEL, BPMNDI_NAMESPACE);
xtw.writeStartElement(OMGDC_PREFIX, ELEMENT_DI_BOUNDS, OMGDC_NAMESPACE);
xtw.writeAttribute(ATTRIBUTE_DI_HEIGHT, "" + labelGraphicInfo.getHeight());
xtw.writeAttribute(ATTRIBUTE_DI_WIDTH, "" + labelGraphicInfo.getWidth());
xtw.writeAttribute(ATTRIBUTE_DI_X, "" + labelGraphicInfo.getX());
xtw.writeAttribute(ATTRIBUTE_DI_Y, "" + labelGraphicInfo.getY());
xtw.writeEndElement();
xtw.writeEndElement();
}
xtw.writeEndElement();
}
}
// end BPMN DI elements
xtw.writeEndElement();
xtw.writeEndElement();
}
protected Point getMinXAndMinY(BpmnModel bpmnModel) {
// We need to calculate maximum values to know how big the image will be in its entirety
double theMinX = java.lang.Double.MAX_VALUE;
double theMaxX = 0;
double theMinY = java.lang.Double.MAX_VALUE;
double theMaxY = 0;
for (Pool pool : bpmnModel.getPools()) {
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(pool.getId());
theMinX = graphicInfo.getX();
theMaxX = graphicInfo.getX() + graphicInfo.getWidth();
theMinY = graphicInfo.getY();
theMaxY = graphicInfo.getY() + graphicInfo.getHeight();
}
List<FlowNode> flowNodes = gatherAllFlowNodes(bpmnModel);
for (FlowNode flowNode : flowNodes) {
GraphicInfo flowNodeGraphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
// width
if ((flowNodeGraphicInfo.getX() + flowNodeGraphicInfo.getWidth()) > theMaxX) {
theMaxX = flowNodeGraphicInfo.getX() + flowNodeGraphicInfo.getWidth();
}
if (flowNodeGraphicInfo.getX() < theMinX) {
theMinX = flowNodeGraphicInfo.getX();
}
// height
if ((flowNodeGraphicInfo.getY() + flowNodeGraphicInfo.getHeight()) > theMaxY) {
theMaxY = flowNodeGraphicInfo.getY() + flowNodeGraphicInfo.getHeight();
}
if (flowNodeGraphicInfo.getY() < theMinY) {
theMinY = flowNodeGraphicInfo.getY();
}
for (SequenceFlow sequenceFlow : flowNode.getOutgoingFlows()) {
List<GraphicInfo> graphicInfoList =
bpmnModel.getFlowLocationGraphicInfo(sequenceFlow.getId());
for (GraphicInfo graphicInfo : graphicInfoList) {
// width
if (graphicInfo.getX() > theMaxX) {
theMaxX = graphicInfo.getX();
}
if (graphicInfo.getX() < theMinX) {
theMinX = graphicInfo.getX();
}
// height
if (graphicInfo.getY() > theMaxY) {
theMaxY = graphicInfo.getY();
}
if (graphicInfo.getY() < theMinY) {
theMinY = graphicInfo.getY();
}
}
}
}
List<Artifact> artifacts = gatherAllArtifacts(bpmnModel);
for (Artifact artifact : artifacts) {
GraphicInfo artifactGraphicInfo = bpmnModel.getGraphicInfo(artifact.getId());
if (artifactGraphicInfo != null) {
// width
if ((artifactGraphicInfo.getX() + artifactGraphicInfo.getWidth()) > theMaxX) {
theMaxX = artifactGraphicInfo.getX() + artifactGraphicInfo.getWidth();
}
if (artifactGraphicInfo.getX() < theMinX) {
theMinX = artifactGraphicInfo.getX();
}
// height
if ((artifactGraphicInfo.getY() + artifactGraphicInfo.getHeight()) > theMaxY) {
theMaxY = artifactGraphicInfo.getY() + artifactGraphicInfo.getHeight();
}
if (artifactGraphicInfo.getY() < theMinY) {
theMinY = artifactGraphicInfo.getY();
}
}
List<GraphicInfo> graphicInfoList = bpmnModel.getFlowLocationGraphicInfo(artifact.getId());
if (graphicInfoList != null) {
for (GraphicInfo graphicInfo : graphicInfoList) {
// width
if (graphicInfo.getX() > theMaxX) {
theMaxX = graphicInfo.getX();
}
if (graphicInfo.getX() < theMinX) {
theMinX = graphicInfo.getX();
}
// height
if (graphicInfo.getY() > theMaxY) {
theMaxY = graphicInfo.getY();
}
if (graphicInfo.getY() < theMinY) {
theMinY = graphicInfo.getY();
}
}
}
}
int nrOfLanes = 0;
for (org.activiti.bpmn.model.Process process : bpmnModel.getProcesses()) {
for (Lane l : process.getLanes()) {
nrOfLanes++;
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(l.getId());
// // width
if ((graphicInfo.getX() + graphicInfo.getWidth()) > theMaxX) {
theMaxX = graphicInfo.getX() + graphicInfo.getWidth();
}
if (graphicInfo.getX() < theMinX) {
theMinX = graphicInfo.getX();
}
// height
if ((graphicInfo.getY() + graphicInfo.getHeight()) > theMaxY) {
theMaxY = graphicInfo.getY() + graphicInfo.getHeight();
}
if (graphicInfo.getY() < theMinY) {
theMinY = graphicInfo.getY();
}
}
}
// Special case, see http://jira.codehaus.org/browse/ACT-1431
if ((flowNodes.size() == 0) && (bpmnModel.getPools().size() == 0) && (nrOfLanes == 0)) {
// Nothing to show
theMinX = 0;
theMinY = 0;
}
return new Point((int) theMinX, (int) theMinY);
}