版本声明：Activiti 5.22.0
通常，由模板发布流程的代码大致如下：
private Deployment convertModelToProcess(String modelId) throws IOException, UnsupportedEncodingException {
Deployment deployment = null;
try {
Model modelData = repositoryService.getModel(modelId);
ObjectNode modelNode = (ObjectNode) new ObjectMapper()
.readTree(repositoryService.getModelEditorSource(modelData.getId()));
byte[] bpmnBytes = null;
BpmnModel model = new BpmnJsonConverter().convertToBpmnModel(modelNode);
bpmnBytes = new BpmnXMLConverter().convertToXML(model);
String processName = modelData.getName() + ".bpmn20.xml";
deployment = repositoryService.createDeployment().name(modelData.getName())
.addString(processName, new String(bpmnBytes, "UTF-8")).deploy();
} catch (Exception e1) {
throw new BizException("流程定义文件存在错误，请修改后重新部署！");
}
return deployment;
}
但在此版本的activiti中存在一个bug：由模板转换的流程定义，其流程图会丢失连线名称。
解决办法：重写BpmnJsonConverter类：
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.activiti.bpmn.model.Activity;
import org.activiti.bpmn.model.Artifact;
import org.activiti.bpmn.model.BaseElement;
import org.activiti.bpmn.model.BoundaryEvent;
import org.activiti.bpmn.model.BpmnModel;
import org.activiti.bpmn.model.Event;
import org.activiti.bpmn.model.EventDefinition;
import org.activiti.bpmn.model.ExtensionElement;
import org.activiti.bpmn.model.FlowElement;
import org.activiti.bpmn.model.FlowElementsContainer;
import org.activiti.bpmn.model.FlowNode;
import org.activiti.bpmn.model.Gateway;
import org.activiti.bpmn.model.GraphicInfo;
import org.activiti.bpmn.model.Lane;
import org.activiti.bpmn.model.Message;
import org.activiti.bpmn.model.MessageEventDefinition;
import org.activiti.bpmn.model.MessageFlow;
import org.activiti.bpmn.model.Pool;
import org.activiti.bpmn.model.Process;
import org.activiti.bpmn.model.SequenceFlow;
import org.activiti.bpmn.model.Signal;
import org.activiti.bpmn.model.SignalEventDefinition;
import org.activiti.bpmn.model.SubProcess;
import org.activiti.bpmn.model.ValuedDataObject;
import org.activiti.editor.constants.EditorJsonConstants;
import org.activiti.editor.constants.StencilConstants;
import org.activiti.editor.language.json.converter.ActivityProcessor;
import org.activiti.editor.language.json.converter.AssociationJsonConverter;
import org.activiti.editor.language.json.converter.BaseBpmnJsonConverter;
import org.activiti.editor.language.json.converter.BoundaryEventJsonConverter;
import org.activiti.editor.language.json.converter.BpmnJsonConverter;
import org.activiti.editor.language.json.converter.BpmnJsonConverterUtil;
import org.activiti.editor.language.json.converter.BusinessRuleTaskJsonConverter;
import org.activiti.editor.language.json.converter.CallActivityJsonConverter;
import org.activiti.editor.language.json.converter.CamelTaskJsonConverter;
import org.activiti.editor.language.json.converter.CatchEventJsonConverter;
import org.activiti.editor.language.json.converter.DataStoreJsonConverter;
import org.activiti.editor.language.json.converter.EndEventJsonConverter;
import org.activiti.editor.language.json.converter.EventGatewayJsonConverter;
import org.activiti.editor.language.json.converter.EventSubProcessJsonConverter;
import org.activiti.editor.language.json.converter.ExclusiveGatewayJsonConverter;
import org.activiti.editor.language.json.converter.InclusiveGatewayJsonConverter;
import org.activiti.editor.language.json.converter.MailTaskJsonConverter;
import org.activiti.editor.language.json.converter.ManualTaskJsonConverter;
import org.activiti.editor.language.json.converter.MessageFlowJsonConverter;
import org.activiti.editor.language.json.converter.MuleTaskJsonConverter;
import org.activiti.editor.language.json.converter.ParallelGatewayJsonConverter;
import org.activiti.editor.language.json.converter.ReceiveTaskJsonConverter;
import org.activiti.editor.language.json.converter.ScriptTaskJsonConverter;
import org.activiti.editor.language.json.converter.SendTaskJsonConverter;
import org.activiti.editor.language.json.converter.SequenceFlowJsonConverter;
import org.activiti.editor.language.json.converter.ServiceTaskJsonConverter;
import org.activiti.editor.language.json.converter.StartEventJsonConverter;
import org.activiti.editor.language.json.converter.SubProcessJsonConverter;
import org.activiti.editor.language.json.converter.TextAnnotationJsonConverter;
import org.activiti.editor.language.json.converter.ThrowEventJsonConverter;
import org.activiti.editor.language.json.converter.UserTaskJsonConverter;
import org.activiti.editor.language.json.converter.util.JsonConverterUtil;
import org.apache.commons.collections.CollectionUtils;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
import math.geom2d.Point2D;
import math.geom2d.conic.Circle2D;
import math.geom2d.curve.AbstractContinuousCurve2D;
import math.geom2d.line.Line2D;
import math.geom2d.polygon.Polyline2D;
/**
* @author Tijs Rademakers
*/
public class CustomBpmnJsonConverter implements EditorJsonConstants,
StencilConstants, ActivityProcessor {
protected static final Logger LOGGER = LoggerFactory
.getLogger(BpmnJsonConverter.class);
protected static Map<Class<? extends BaseElement>, Class<? extends BaseBpmnJsonConverter>> convertersToJsonMap = new HashMap<Class<? extends BaseElement>, Class<? extends BaseBpmnJsonConverter>>();
protected static Map<String, Class<? extends BaseBpmnJsonConverter>> convertersToBpmnMap = new HashMap<String, Class<? extends BaseBpmnJsonConverter>>();
public static final String MODELER_NAMESPACE = "http://activiti.com/modeler";
protected static final DateFormat defaultFormat = new SimpleDateFormat(
"yyyyMMddHHmmss");
protected static final DateFormat entFormat = new SimpleDateFormat(
"yyyyMMddHHmmssSSS");
static {
// start and end events
StartEventJsonConverter.fillTypes(convertersToBpmnMap,
convertersToJsonMap);
EndEventJsonConverter.fillTypes(convertersToBpmnMap,
convertersToJsonMap);
// connectors
SequenceFlowJsonConverter.fillTypes(convertersToBpmnMap,
convertersToJsonMap);
MessageFlowJsonConverter.fillTypes(convertersToBpmnMap,
convertersToJsonMap);
AssociationJsonConverter.fillTypes(convertersToBpmnMap,
convertersToJsonMap);
// task types
BusinessRuleTaskJsonConverter.fillTypes(convertersToBpmnMap,
convertersToJsonMap);
MailTaskJsonConverter.fillTypes(convertersToBpmnMap,
convertersToJsonMap);
ManualTaskJsonConverter.fillTypes(convertersToBpmnMap,
convertersToJsonMap);
ReceiveTaskJsonConverter.fillTypes(convertersToBpmnMap,
convertersToJsonMap);
ScriptTaskJsonConverter.fillTypes(convertersToBpmnMap,
convertersToJsonMap);
ServiceTaskJsonConverter.fillTypes(convertersToBpmnMap,
convertersToJsonMap);
UserTaskJsonConverter.fillTypes(convertersToBpmnMap,
convertersToJsonMap);
CallActivityJsonConverter.fillTypes(convertersToBpmnMap,
convertersToJsonMap);
CamelTaskJsonConverter.fillTypes(convertersToBpmnMap,
convertersToJsonMap);
MuleTaskJsonConverter.fillTypes(convertersToBpmnMap,
convertersToJsonMap);
SendTaskJsonConverter.fillTypes(convertersToBpmnMap,
convertersToJsonMap);
// gateways
ExclusiveGatewayJsonConverter.fillTypes(convertersToBpmnMap,
convertersToJsonMap);
InclusiveGatewayJsonConverter.fillTypes(convertersToBpmnMap,
convertersToJsonMap);
ParallelGatewayJsonConverter.fillTypes(convertersToBpmnMap,
convertersToJsonMap);
EventGatewayJsonConverter.fillTypes(convertersToBpmnMap,
convertersToJsonMap);
// scope constructs
SubProcessJsonConverter.fillTypes(convertersToBpmnMap,
convertersToJsonMap);
EventSubProcessJsonConverter.fillTypes(convertersToBpmnMap,
convertersToJsonMap);
// catch events
CatchEventJsonConverter.fillTypes(convertersToBpmnMap,
convertersToJsonMap);
// throw events
ThrowEventJsonConverter.fillTypes(convertersToBpmnMap,
convertersToJsonMap);
// boundary events
BoundaryEventJsonConverter.fillTypes(convertersToBpmnMap,
convertersToJsonMap);
// artifacts
TextAnnotationJsonConverter.fillTypes(convertersToBpmnMap,
convertersToJsonMap);
DataStoreJsonConverter.fillTypes(convertersToBpmnMap,
convertersToJsonMap);
}
private static final List<String> DI_CIRCLES = new ArrayList<String>();
private static final List<String> DI_RECTANGLES = new ArrayList<String>();
private static final List<String> DI_GATEWAY = new ArrayList<String>();
static {
DI_CIRCLES.add(STENCIL_EVENT_START_ERROR);
DI_CIRCLES.add(STENCIL_EVENT_START_MESSAGE);
DI_CIRCLES.add(STENCIL_EVENT_START_NONE);
DI_CIRCLES.add(STENCIL_EVENT_START_TIMER);
DI_CIRCLES.add(STENCIL_EVENT_START_SIGNAL);
DI_CIRCLES.add(STENCIL_EVENT_BOUNDARY_ERROR);
DI_CIRCLES.add(STENCIL_EVENT_BOUNDARY_SIGNAL);
DI_CIRCLES.add(STENCIL_EVENT_BOUNDARY_TIMER);
DI_CIRCLES.add(STENCIL_EVENT_BOUNDARY_MESSAGE);
DI_CIRCLES.add(STENCIL_EVENT_BOUNDARY_CANCEL);
DI_CIRCLES.add(STENCIL_EVENT_BOUNDARY_COMPENSATION);
DI_CIRCLES.add(STENCIL_EVENT_CATCH_MESSAGE);
DI_CIRCLES.add(STENCIL_EVENT_CATCH_SIGNAL);
DI_CIRCLES.add(STENCIL_EVENT_CATCH_TIMER);
DI_CIRCLES.add(STENCIL_EVENT_THROW_NONE);
DI_CIRCLES.add(STENCIL_EVENT_THROW_SIGNAL);
DI_CIRCLES.add(STENCIL_EVENT_END_NONE);
DI_CIRCLES.add(STENCIL_EVENT_END_ERROR);
DI_CIRCLES.add(STENCIL_EVENT_END_CANCEL);
DI_CIRCLES.add(STENCIL_EVENT_END_TERMINATE);
DI_RECTANGLES.add(STENCIL_CALL_ACTIVITY);
DI_RECTANGLES.add(STENCIL_SUB_PROCESS);
DI_RECTANGLES.add(STENCIL_EVENT_SUB_PROCESS);
DI_RECTANGLES.add(STENCIL_TASK_BUSINESS_RULE);
DI_RECTANGLES.add(STENCIL_TASK_MAIL);
DI_RECTANGLES.add(STENCIL_TASK_MANUAL);
DI_RECTANGLES.add(STENCIL_TASK_RECEIVE);
DI_RECTANGLES.add(STENCIL_TASK_SCRIPT);
DI_RECTANGLES.add(STENCIL_TASK_SEND);
DI_RECTANGLES.add(STENCIL_TASK_SERVICE);
DI_RECTANGLES.add(STENCIL_TASK_USER);
DI_RECTANGLES.add(STENCIL_TASK_CAMEL);
DI_RECTANGLES.add(STENCIL_TASK_MULE);
DI_RECTANGLES.add(STENCIL_TEXT_ANNOTATION);
DI_GATEWAY.add(STENCIL_GATEWAY_EVENT);
DI_GATEWAY.add(STENCIL_GATEWAY_EXCLUSIVE);
DI_GATEWAY.add(STENCIL_GATEWAY_INCLUSIVE);
DI_GATEWAY.add(STENCIL_GATEWAY_PARALLEL);
}
protected ObjectMapper objectMapper = new ObjectMapper();
public ObjectNode convertToJson(BpmnModel model) {
ObjectNode modelNode = objectMapper.createObjectNode();
double maxX = 0.0;
double maxY = 0.0;
for (GraphicInfo flowInfo : model.getLocationMap().values()) {
if ((flowInfo.getX() + flowInfo.getWidth()) > maxX) {
maxX = flowInfo.getX() + flowInfo.getWidth();
}
if ((flowInfo.getY() + flowInfo.getHeight()) > maxY) {
maxY = flowInfo.getY() + flowInfo.getHeight();
}
}
maxX += 50;
maxY += 50;
if (maxX < 1485) {
maxX = 1485;
}
if (maxY < 700) {
maxY = 700;
}
modelNode.put("bounds",
BpmnJsonConverterUtil.createBoundsNode(maxX, maxY, 0, 0));
modelNode.put("resourceId", "canvas");
ObjectNode stencilNode = objectMapper.createObjectNode();
stencilNode.put("id", "BPMNDiagram");
modelNode.put("stencil", stencilNode);
ObjectNode stencilsetNode = objectMapper.createObjectNode();
stencilsetNode.put("namespace", "http://b3mn.org/stencilset/bpmn2.0#");
stencilsetNode.put("url", "../editor/stencilsets/bpmn2.0/bpmn2.0.json");
modelNode.put("stencilset", stencilsetNode);
ArrayNode shapesArrayNode = objectMapper.createArrayNode();
Process mainProcess = null;
if (model.getPools().size() > 0) {
mainProcess = model.getProcess(model.getPools().get(0).getId());
} else {
mainProcess = model.getMainProcess();
}
ObjectNode propertiesNode = objectMapper.createObjectNode();
if (StringUtils.isNotEmpty(mainProcess.getId())) {
propertiesNode.put(PROPERTY_PROCESS_ID, mainProcess.getId());
}
if (StringUtils.isNotEmpty(mainProcess.getName())) {
propertiesNode.put(PROPERTY_NAME, mainProcess.getName());
}
if (StringUtils.isNotEmpty(mainProcess.getDocumentation())) {
propertiesNode.put(PROPERTY_DOCUMENTATION,
mainProcess.getDocumentation());
}
if (mainProcess.isExecutable() == false) {
propertiesNode.put(PROPERTY_PROCESS_EXECUTABLE, "No");
}
if (StringUtils.isNoneEmpty(model.getTargetNamespace())) {
propertiesNode.put(PROPERTY_PROCESS_NAMESPACE,
model.getTargetNamespace());
}
BpmnJsonConverterUtil.convertMessagesToJson(model.getMessages(),
propertiesNode);
BpmnJsonConverterUtil.convertListenersToJson(
mainProcess.getExecutionListeners(), true, propertiesNode);
BpmnJsonConverterUtil.convertEventListenersToJson(
mainProcess.getEventListeners(), propertiesNode);
BpmnJsonConverterUtil.convertSignalDefinitionsToJson(model,
propertiesNode);
BpmnJsonConverterUtil.convertMessagesToJson(model, propertiesNode);
if (CollectionUtils.isNotEmpty(mainProcess.getDataObjects())) {
BpmnJsonConverterUtil.convertDataPropertiesToJson(
mainProcess.getDataObjects(), propertiesNode);
}
modelNode.put(EDITOR_SHAPE_PROPERTIES, propertiesNode);
boolean poolHasDI = false;
if (model.getPools().size() > 0) {
for (Pool pool : model.getPools()) {
GraphicInfo graphicInfo = model.getGraphicInfo(pool.getId());
if (graphicInfo != null) {
poolHasDI = true;
break;
}
}
}
if ((model.getPools().size() > 0) && poolHasDI) {
for (Pool pool : model.getPools()) {
GraphicInfo graphicInfo = model.getGraphicInfo(pool.getId());
if (graphicInfo == null) {
continue;
}
ObjectNode poolNode = BpmnJsonConverterUtil.createChildShape(
pool.getId(), STENCIL_POOL, graphicInfo.getX()
+ graphicInfo.getWidth(), graphicInfo.getY()
+ graphicInfo.getHeight(), graphicInfo.getX(),
graphicInfo.getY());
shapesArrayNode.add(poolNode);
ObjectNode poolPropertiesNode = objectMapper.createObjectNode();
poolPropertiesNode.put(PROPERTY_OVERRIDE_ID, pool.getId());
poolPropertiesNode.put(PROPERTY_PROCESS_ID,
pool.getProcessRef());
if (pool.isExecutable() == false) {
poolPropertiesNode.put(PROPERTY_PROCESS_EXECUTABLE,
PROPERTY_VALUE_NO);
}
if (StringUtils.isNotEmpty(pool.getName())) {
poolPropertiesNode.put(PROPERTY_NAME, pool.getName());
}
poolNode.put(EDITOR_SHAPE_PROPERTIES, poolPropertiesNode);
ArrayNode laneShapesArrayNode = objectMapper.createArrayNode();
poolNode.put(EDITOR_CHILD_SHAPES, laneShapesArrayNode);
ArrayNode outgoingArrayNode = objectMapper.createArrayNode();
poolNode.put("outgoing", outgoingArrayNode);
Process process = model.getProcess(pool.getId());
if (process != null) {
Map<String, ArrayNode> laneMap = new HashMap<String, ArrayNode>();
for (Lane lane : process.getLanes()) {
GraphicInfo laneGraphicInfo = model.getGraphicInfo(lane
.getId());
if (laneGraphicInfo == null) {
continue;
}
ObjectNode laneNode = BpmnJsonConverterUtil
.createChildShape(lane.getId(), STENCIL_LANE,
laneGraphicInfo.getX()
+ laneGraphicInfo.getWidth(),
laneGraphicInfo.getY()
+ laneGraphicInfo.getHeight(),
laneGraphicInfo.getX(),
laneGraphicInfo.getY());
laneShapesArrayNode.add(laneNode);
ObjectNode lanePropertiesNode = objectMapper
.createObjectNode();
lanePropertiesNode.put(PROPERTY_OVERRIDE_ID,
lane.getId());
if (StringUtils.isNotEmpty(lane.getName())) {
lanePropertiesNode.put(PROPERTY_NAME,
lane.getName());
}
laneNode.put(EDITOR_SHAPE_PROPERTIES,
lanePropertiesNode);
ArrayNode elementShapesArrayNode = objectMapper
.createArrayNode();
laneNode.put(EDITOR_CHILD_SHAPES,
elementShapesArrayNode);
laneNode.put("outgoing", objectMapper.createArrayNode());
laneMap.put(lane.getId(), elementShapesArrayNode);
}
for (FlowElement flowElement : process.getFlowElements()) {
Lane laneForElement = null;
GraphicInfo laneGraphicInfo = null;
FlowElement lookForElement = null;
if (flowElement instanceof SequenceFlow) {
SequenceFlow sequenceFlow = (SequenceFlow) flowElement;
lookForElement = model.getFlowElement(sequenceFlow
.getSourceRef());
} else {
lookForElement = flowElement;
}
for (Lane lane : process.getLanes()) {
if (lane.getFlowReferences().contains(
lookForElement.getId())) {
laneGraphicInfo = model.getGraphicInfo(lane
.getId());
if (laneGraphicInfo != null) {
laneForElement = lane;
}
break;
}
}
if (flowElement instanceof SequenceFlow
|| (laneForElement != null)) {
processFlowElement(flowElement, process, model,
laneMap.get(laneForElement.getId()),
laneGraphicInfo.getX(),
laneGraphicInfo.getY());
}
}
processArtifacts(process, model, shapesArrayNode, 0.0, 0.0);
}
for (MessageFlow messageFlow : model.getMessageFlows().values()) {
if (messageFlow.getSourceRef().equals(pool.getId())) {
outgoingArrayNode.add(BpmnJsonConverterUtil
.createResourceNode(messageFlow.getId()));
}
}
}
processMessageFlows(model, shapesArrayNode);
} else {
processFlowElements(model.getMainProcess(), model, shapesArrayNode,
0.0, 0.0);
processMessageFlows(model, shapesArrayNode);
}
modelNode.put(EDITOR_CHILD_SHAPES, shapesArrayNode);
return modelNode;
}
public void processFlowElements(FlowElementsContainer container,
BpmnModel model, ArrayNode shapesArrayNode, double subProcessX,
double subProcessY) {
for (FlowElement flowElement : container.getFlowElements()) {
processFlowElement(flowElement, container, model, shapesArrayNode,
subProcessX, subProcessY);
}
processArtifacts(container, model, shapesArrayNode, subProcessX,
subProcessY);
}
protected void processFlowElement(FlowElement flowElement,
FlowElementsContainer container, BpmnModel model,
ArrayNode shapesArrayNode, double containerX, double containerY) {
Class<? extends BaseBpmnJsonConverter> converter = convertersToJsonMap
.get(flowElement.getClass());
if (converter != null) {
try {
converter.newInstance().convertToJson(flowElement, this, model,
container, shapesArrayNode, containerX, containerY);
} catch (Exception e) {
LOGGER.error("Error converting {}", flowElement, e);
}
}
}
protected void processArtifacts(FlowElementsContainer container,
BpmnModel model, ArrayNode shapesArrayNode, double containerX,
double containerY) {
for (Artifact artifact : container.getArtifacts()) {
Class<? extends BaseBpmnJsonConverter> converter = convertersToJsonMap
.get(artifact.getClass());
if (converter != null) {
try {
converter.newInstance().convertToJson(artifact, this,
model, container, shapesArrayNode, containerX,
containerY);
} catch (Exception e) {
LOGGER.error("Error converting {}", artifact, e);
}
}
}
}
protected void processMessageFlows(BpmnModel model,
ArrayNode shapesArrayNode) {
for (MessageFlow messageFlow : model.getMessageFlows().values()) {
MessageFlowJsonConverter jsonConverter = new MessageFlowJsonConverter();
jsonConverter.convertToJson(messageFlow, this, model, null,
shapesArrayNode, 0.0, 0.0);
}
}
public BpmnModel convertToBpmnModel(JsonNode modelNode) {
BpmnModel bpmnModel = new BpmnModel();
bpmnModel.setTargetNamespace("http://activiti.org/test");
Map<String, JsonNode> shapeMap = new HashMap<String, JsonNode>();
Map<String, JsonNode> sourceRefMap = new HashMap<String, JsonNode>();
Map<String, JsonNode> edgeMap = new HashMap<String, JsonNode>();
Map<String, List<JsonNode>> sourceAndTargetMap = new HashMap<String, List<JsonNode>>();
readShapeDI(modelNode, 0, 0, shapeMap, sourceRefMap, bpmnModel);
filterAllEdges(modelNode, edgeMap, sourceAndTargetMap, shapeMap,
sourceRefMap);
readEdgeDI(edgeMap, sourceAndTargetMap, bpmnModel);
ArrayNode shapesArrayNode = (ArrayNode) modelNode
.get(EDITOR_CHILD_SHAPES);
if ((shapesArrayNode == null) || (shapesArrayNode.size() == 0)) {
return bpmnModel;
}
boolean nonEmptyPoolFound = false;
Map<String, Lane> elementInLaneMap = new HashMap<String, Lane>();
// first create the pool structure
for (JsonNode shapeNode : shapesArrayNode) {
String stencilId = BpmnJsonConverterUtil.getStencilId(shapeNode);
if (STENCIL_POOL.equals(stencilId)) {
Pool pool = new Pool();
pool.setId(BpmnJsonConverterUtil.getElementId(shapeNode));
pool.setName(JsonConverterUtil.getPropertyValueAsString(
PROPERTY_NAME, shapeNode));
pool.setProcessRef(JsonConverterUtil.getPropertyValueAsString(
PROPERTY_PROCESS_ID, shapeNode));
pool.setExecutable(JsonConverterUtil.getPropertyValueAsBoolean(
PROPERTY_PROCESS_EXECUTABLE, shapeNode, true));
bpmnModel.getPools().add(pool);
Process process = new Process();
process.setId(pool.getProcessRef());
process.setName(pool.getName());
process.setExecutable(pool.isExecutable());
bpmnModel.addProcess(process);
ArrayNode laneArrayNode = (ArrayNode) shapeNode
.get(EDITOR_CHILD_SHAPES);
for (JsonNode laneNode : laneArrayNode) {
// should be a lane, but just check to be certain
String laneStencilId = BpmnJsonConverterUtil
.getStencilId(laneNode);
if (STENCIL_LANE.equals(laneStencilId)) {
nonEmptyPoolFound = true;
Lane lane = new Lane();
lane.setId(BpmnJsonConverterUtil.getElementId(laneNode));
lane.setName(JsonConverterUtil
.getPropertyValueAsString(PROPERTY_NAME,
laneNode));
lane.setParentProcess(process);
process.getLanes().add(lane);
processJsonElements(laneNode.get(EDITOR_CHILD_SHAPES),
modelNode, lane, shapeMap, bpmnModel);
if (CollectionUtils
.isNotEmpty(lane.getFlowReferences())) {
for (String elementRef : lane.getFlowReferences()) {
elementInLaneMap.put(elementRef, lane);
}
}
}
}
}
}
// Signal Definitions exist on the root level
JsonNode signalDefinitionNode = BpmnJsonConverterUtil.getProperty(
PROPERTY_SIGNAL_DEFINITIONS, modelNode);
signalDefinitionNode = BpmnJsonConverterUtil
.validateIfNodeIsTextual(signalDefinitionNode);
signalDefinitionNode = BpmnJsonConverterUtil
.validateIfNodeIsTextual(signalDefinitionNode); // no idea why this needs to be done twice ..
if (signalDefinitionNode != null) {
if (signalDefinitionNode instanceof ArrayNode) {
ArrayNode signalDefinitionArrayNode = (ArrayNode) signalDefinitionNode;
Iterator<JsonNode> signalDefinitionIterator = signalDefinitionArrayNode
.iterator();
while (signalDefinitionIterator.hasNext()) {
JsonNode signalDefinitionJsonNode = signalDefinitionIterator
.next();
String signalId = signalDefinitionJsonNode.get(
PROPERTY_SIGNAL_DEFINITION_ID).asText();
String signalName = signalDefinitionJsonNode.get(
PROPERTY_SIGNAL_DEFINITION_NAME).asText();
String signalScope = signalDefinitionJsonNode.get(
PROPERTY_SIGNAL_DEFINITION_SCOPE).asText();
Signal signal = new Signal();
signal.setId(signalId);
signal.setName(signalName);
signal.setScope((signalScope.toLowerCase()
.equals("processinstance")) ? Signal.SCOPE_PROCESS_INSTANCE
: Signal.SCOPE_GLOBAL);
bpmnModel.addSignal(signal);
}
}
}
if (nonEmptyPoolFound == false) {
Process process = new Process();
bpmnModel.getProcesses().add(process);
process.setId(BpmnJsonConverterUtil.getPropertyValueAsString(
PROPERTY_PROCESS_ID, modelNode));
process.setName(BpmnJsonConverterUtil.getPropertyValueAsString(
PROPERTY_NAME, modelNode));
String namespace = BpmnJsonConverterUtil.getPropertyValueAsString(
PROPERTY_PROCESS_NAMESPACE, modelNode);
if (StringUtils.isNotEmpty(namespace)) {
bpmnModel.setTargetNamespace(namespace);
}
process.setDocumentation(BpmnJsonConverterUtil
.getPropertyValueAsString(PROPERTY_DOCUMENTATION, modelNode));
JsonNode processExecutableNode = JsonConverterUtil.getProperty(
PROPERTY_PROCESS_EXECUTABLE, modelNode);
if ((processExecutableNode != null)
&& StringUtils.isNotEmpty(processExecutableNode.asText())) {
process.setExecutable(JsonConverterUtil
.getPropertyValueAsBoolean(PROPERTY_PROCESS_EXECUTABLE,
modelNode));
}
BpmnJsonConverterUtil.convertJsonToMessages(modelNode, bpmnModel);
BpmnJsonConverterUtil.convertJsonToListeners(modelNode, process);
JsonNode eventListenersNode = BpmnJsonConverterUtil.getProperty(
PROPERTY_EVENT_LISTENERS, modelNode);
if (eventListenersNode != null) {
eventListenersNode = BpmnJsonConverterUtil
.validateIfNodeIsTextual(eventListenersNode);
BpmnJsonConverterUtil.parseEventListeners(
eventListenersNode.get(PROPERTY_EVENTLISTENER_VALUE),
process);
}
JsonNode processDataPropertiesNode = modelNode.get(
EDITOR_SHAPE_PROPERTIES).get(PROPERTY_DATA_PROPERTIES);
if (processDataPropertiesNode != null) {
List<ValuedDataObject> dataObjects = BpmnJsonConverterUtil
.convertJsonToDataProperties(processDataPropertiesNode,
process);
process.setDataObjects(dataObjects);
process.getFlowElements().addAll(dataObjects);
}
processJsonElements(shapesArrayNode, modelNode, process, shapeMap,
bpmnModel);
} else {
// sequence flows are on root level so need additional parsing for pools
for (JsonNode shapeNode : shapesArrayNode) {
if (STENCIL_SEQUENCE_FLOW
.equalsIgnoreCase(BpmnJsonConverterUtil
.getStencilId(shapeNode))
|| STENCIL_ASSOCIATION
.equalsIgnoreCase(BpmnJsonConverterUtil
.getStencilId(shapeNode))) {
String sourceRef = BpmnJsonConverterUtil.lookForSourceRef(
shapeNode.get(EDITOR_SHAPE_ID).asText(),
modelNode.get(EDITOR_CHILD_SHAPES));
if (sourceRef != null) {
Lane lane = elementInLaneMap.get(sourceRef);
SequenceFlowJsonConverter flowConverter = new SequenceFlowJsonConverter();
if (lane != null) {
flowConverter.convertToBpmnModel(shapeNode,
modelNode, this, lane, shapeMap, bpmnModel);
} else {
flowConverter.convertToBpmnModel(shapeNode,
modelNode, this, bpmnModel.getProcesses()
.get(0), shapeMap, bpmnModel);
}
}
}
}
}
// sequence flows are now all on root level
Map<String, SubProcess> subShapesMap = new HashMap<String, SubProcess>();
for (Process process : bpmnModel.getProcesses()) {
for (FlowElement flowElement : process
.findFlowElementsOfType(SubProcess.class)) {
SubProcess subProcess = (SubProcess) flowElement;
fillSubShapes(subShapesMap, subProcess);
}
if (subShapesMap.size() > 0) {
List<String> removeSubFlowsList = new ArrayList<String>();
for (FlowElement flowElement : process
.findFlowElementsOfType(SequenceFlow.class)) {
SequenceFlow sequenceFlow = (SequenceFlow) flowElement;
if (subShapesMap.containsKey(sequenceFlow.getSourceRef())) {
SubProcess subProcess = subShapesMap.get(sequenceFlow
.getSourceRef());
if (subProcess.getFlowElement(sequenceFlow.getId()) == null) {
subProcess.addFlowElement(sequenceFlow);
removeSubFlowsList.add(sequenceFlow.getId());
}
}
}
for (String flowId : removeSubFlowsList) {
process.removeFlowElement(flowId);
}
}
}
Map<String, FlowWithContainer> allFlowMap = new HashMap<String, FlowWithContainer>();
List<Gateway> gatewayWithOrderList = new ArrayList<Gateway>();
// post handling of process elements
for (Process process : bpmnModel.getProcesses()) {
postProcessElements(process, process.getFlowElements(), edgeMap,
bpmnModel, allFlowMap, gatewayWithOrderList);
}
// sort the sequence flows
for (Gateway gateway : gatewayWithOrderList) {
List<ExtensionElement> orderList = gateway.getExtensionElements()
.get("EDITOR_FLOW_ORDER");
if (CollectionUtils.isNotEmpty(orderList)) {
for (ExtensionElement orderElement : orderList) {
String flowValue = orderElement.getElementText();
if (StringUtils.isNotEmpty(flowValue)) {
if (allFlowMap.containsKey(flowValue)) {
FlowWithContainer flowWithContainer = allFlowMap
.get(flowValue);
flowWithContainer.getFlowContainer()
.removeFlowElement(
flowWithContainer.getSequenceFlow()
.getId());
flowWithContainer
.getFlowContainer()
.addFlowElement(
flowWithContainer.getSequenceFlow());
}
}
}
}
gateway.getExtensionElements().remove("EDITOR_FLOW_ORDER");
}
return bpmnModel;
}
public void processJsonElements(JsonNode shapesArrayNode,
JsonNode modelNode, BaseElement parentElement,
Map<String, JsonNode> shapeMap, BpmnModel bpmnModel) {
for (JsonNode shapeNode : shapesArrayNode) {
String stencilId = BpmnJsonConverterUtil.getStencilId(shapeNode);
Class<? extends BaseBpmnJsonConverter> converter = convertersToBpmnMap
.get(stencilId);
try {
BaseBpmnJsonConverter converterInstance = converter
.newInstance();
converterInstance.convertToBpmnModel(shapeNode, modelNode,
this, parentElement, shapeMap, bpmnModel);
} catch (Exception e) {
LOGGER.error("Error converting {}",
BpmnJsonConverterUtil.getStencilId(shapeNode), e);
}
}
}
private void fillSubShapes(Map<String, SubProcess> subShapesMap,
SubProcess subProcess) {
for (FlowElement flowElement : subProcess.getFlowElements()) {
if (flowElement instanceof SubProcess) {
SubProcess childSubProcess = (SubProcess) flowElement;
subShapesMap.put(childSubProcess.getId(), subProcess);
fillSubShapes(subShapesMap, childSubProcess);
} else {
subShapesMap.put(flowElement.getId(), subProcess);
}
}
}
private void postProcessElements(FlowElementsContainer parentContainer,
Collection<FlowElement> flowElementList,
Map<String, JsonNode> edgeMap, BpmnModel bpmnModel,
Map<String, FlowWithContainer> allFlowMap,
List<Gateway> gatewayWithOrderList) {
for (FlowElement flowElement : flowElementList) {
if (flowElement instanceof Event) {
Event event = (Event) flowElement;
if (CollectionUtils.isNotEmpty(event.getEventDefinitions())) {
EventDefinition eventDef = event.getEventDefinitions().get(
0);
if (eventDef instanceof SignalEventDefinition) {
SignalEventDefinition signalEventDef = (SignalEventDefinition) eventDef;
if (StringUtils.isNotEmpty(signalEventDef
.getSignalRef())) {
if (bpmnModel.getSignal(signalEventDef
.getSignalRef()) == null) {
bpmnModel.addSignal(new Signal(signalEventDef
.getSignalRef(), signalEventDef
.getSignalRef()));
}
}
} else if (eventDef instanceof MessageEventDefinition) {
MessageEventDefinition messageEventDef = (MessageEventDefinition) eventDef;
if (StringUtils.isNotEmpty(messageEventDef
.getMessageRef())) {
if (bpmnModel.getMessage(messageEventDef
.getMessageRef()) == null) {
bpmnModel.addMessage(new Message(
messageEventDef.getMessageRef(),
messageEventDef.getMessageRef(), null));
}
}
}
}
}
if (flowElement instanceof BoundaryEvent) {
BoundaryEvent boundaryEvent = (BoundaryEvent) flowElement;
Activity activity = retrieveAttachedRefObject(
boundaryEvent.getAttachedToRefId(),
parentContainer.getFlowElements());
if (activity == null) {
LOGGER.warn("Boundary event " + boundaryEvent.getId()
+ " is not attached to any activity");
} else {
boundaryEvent.setAttachedToRef(activity);
activity.getBoundaryEvents().add(boundaryEvent);
}
} else if (flowElement instanceof Gateway) {
if (flowElement.getExtensionElements().containsKey(
"EDITOR_FLOW_ORDER")) {
gatewayWithOrderList.add((Gateway) flowElement);
}
} else if (flowElement instanceof SubProcess) {
SubProcess subProcess = (SubProcess) flowElement;
postProcessElements(subProcess, subProcess.getFlowElements(),
edgeMap, bpmnModel, allFlowMap, gatewayWithOrderList);
} else if (flowElement instanceof SequenceFlow) {
SequenceFlow sequenceFlow = (SequenceFlow) flowElement;
FlowElement sourceFlowElement = parentContainer
.getFlowElement(sequenceFlow.getSourceRef());
if ((sourceFlowElement != null)
&& sourceFlowElement instanceof FlowNode) {
FlowWithContainer flowWithContainer = new FlowWithContainer(
sequenceFlow, parentContainer);
if ((sequenceFlow.getExtensionElements().get(
"EDITOR_RESOURCEID") != null)
&& (sequenceFlow.getExtensionElements()
.get("EDITOR_RESOURCEID").size() > 0)) {
allFlowMap.put(
sequenceFlow.getExtensionElements()
.get("EDITOR_RESOURCEID").get(0)
.getElementText(), flowWithContainer);
sequenceFlow.getExtensionElements().remove(
"EDITOR_RESOURCEID");
}
((FlowNode) sourceFlowElement).getOutgoingFlows().add(
sequenceFlow);
JsonNode edgeNode = edgeMap.get(sequenceFlow.getId());
if (edgeNode != null) {
boolean isDefault = JsonConverterUtil
.getPropertyValueAsBoolean("defaultflow",
edgeNode);
if (isDefault) {
if (sourceFlowElement instanceof Activity) {
((Activity) sourceFlowElement)
.setDefaultFlow(sequenceFlow.getId());
} else if (sourceFlowElement instanceof Gateway) {
((Gateway) sourceFlowElement)
.setDefaultFlow(sequenceFlow.getId());
}
}
}
}
FlowElement targetFlowElement = parentContainer
.getFlowElement(sequenceFlow.getTargetRef());
if ((targetFlowElement != null)
&& targetFlowElement instanceof FlowNode) {
((FlowNode) targetFlowElement).getIncomingFlows().add(
sequenceFlow);
}
}
}
}
private Activity retrieveAttachedRefObject(String attachedToRefId,
Collection<FlowElement> flowElementList) {
Activity activity = null;
if (StringUtils.isNotEmpty(attachedToRefId)) {
for (FlowElement flowElement : flowElementList) {
if (attachedToRefId.equals(flowElement.getId())) {
activity = (Activity) flowElement;
break;
} else if (flowElement instanceof SubProcess) {
SubProcess subProcess = (SubProcess) flowElement;
Activity retrievedActivity = retrieveAttachedRefObject(
attachedToRefId, subProcess.getFlowElements());
if (retrievedActivity != null) {
activity = retrievedActivity;
break;
}
}
}
}
return activity;
}
private void readShapeDI(JsonNode objectNode, double parentX,
double parentY, Map<String, JsonNode> shapeMap,
Map<String, JsonNode> sourceRefMap, BpmnModel bpmnModel) {
if (objectNode.get(EDITOR_CHILD_SHAPES) != null) {
for (JsonNode jsonChildNode : objectNode.get(EDITOR_CHILD_SHAPES)) {
String stencilId = BpmnJsonConverterUtil
.getStencilId(jsonChildNode);
if (STENCIL_SEQUENCE_FLOW.equals(stencilId) == false) {
GraphicInfo graphicInfo = new GraphicInfo();
JsonNode boundsNode = jsonChildNode.get(EDITOR_BOUNDS);
ObjectNode upperLeftNode = (ObjectNode) boundsNode
.get(EDITOR_BOUNDS_UPPER_LEFT);
graphicInfo.setX(upperLeftNode.get(EDITOR_BOUNDS_X)
.asDouble() + parentX);
graphicInfo.setY(upperLeftNode.get(EDITOR_BOUNDS_Y)
.asDouble() + parentY);
ObjectNode lowerRightNode = (ObjectNode) boundsNode
.get(EDITOR_BOUNDS_LOWER_RIGHT);
graphicInfo.setWidth(lowerRightNode.get(EDITOR_BOUNDS_X)
.asDouble() - graphicInfo.getX() + parentX);
graphicInfo.setHeight(lowerRightNode.get(EDITOR_BOUNDS_Y)
.asDouble() - graphicInfo.getY() + parentY);
String childShapeId = jsonChildNode.get(EDITOR_SHAPE_ID)
.asText();
bpmnModel.addGraphicInfo(
BpmnJsonConverterUtil.getElementId(jsonChildNode),
graphicInfo);
shapeMap.put(childShapeId, jsonChildNode);
ArrayNode outgoingNode = (ArrayNode) jsonChildNode
.get("outgoing");
if ((outgoingNode != null) && (outgoingNode.size() > 0)) {
for (JsonNode outgoingChildNode : outgoingNode) {
JsonNode resourceNode = outgoingChildNode
.get(EDITOR_SHAPE_ID);
if (resourceNode != null) {
sourceRefMap.put(resourceNode.asText(),
jsonChildNode);
}
}
}
readShapeDI(jsonChildNode, graphicInfo.getX(),
graphicInfo.getY(), shapeMap, sourceRefMap,
bpmnModel);
}
}
}
}
private void filterAllEdges(JsonNode objectNode,
Map<String, JsonNode> edgeMap,
Map<String, List<JsonNode>> sourceAndTargetMap,
Map<String, JsonNode> shapeMap, Map<String, JsonNode> sourceRefMap) {
if (objectNode.get(EDITOR_CHILD_SHAPES) != null) {
for (JsonNode jsonChildNode : objectNode.get(EDITOR_CHILD_SHAPES)) {
ObjectNode childNode = (ObjectNode) jsonChildNode;
String stencilId = BpmnJsonConverterUtil
.getStencilId(childNode);
if (STENCIL_SUB_PROCESS.equals(stencilId)) {
filterAllEdges(childNode, edgeMap, sourceAndTargetMap,
shapeMap, sourceRefMap);
} else if (STENCIL_SEQUENCE_FLOW.equals(stencilId)
|| STENCIL_ASSOCIATION.equals(stencilId)) {
String childEdgeId = BpmnJsonConverterUtil
.getElementId(childNode);
JsonNode targetNode = childNode.get("target");
if ((targetNode != null) && (targetNode.isNull() == false)) {
String targetRefId = targetNode.get(EDITOR_SHAPE_ID)
.asText();
List<JsonNode> sourceAndTargetList = new ArrayList<JsonNode>();
sourceAndTargetList.add(sourceRefMap.get(childNode.get(
EDITOR_SHAPE_ID).asText()));
sourceAndTargetList.add(shapeMap.get(targetRefId));
sourceAndTargetMap
.put(childEdgeId, sourceAndTargetList);
}
edgeMap.put(childEdgeId, childNode);
}
}
}
}
private void readEdgeDI(Map<String, JsonNode> edgeMap,
Map<String, List<JsonNode>> sourceAndTargetMap, BpmnModel bpmnModel) {
for (String edgeId : edgeMap.keySet()) {
JsonNode edgeNode = edgeMap.get(edgeId);
List<JsonNode> sourceAndTargetList = sourceAndTargetMap.get(edgeId);
JsonNode sourceRefNode = null;
JsonNode targetRefNode = null;
if ((sourceAndTargetList != null)
&& (sourceAndTargetList.size() > 1)) {
sourceRefNode = sourceAndTargetList.get(0);
targetRefNode = sourceAndTargetList.get(1);
}
if (sourceRefNode == null) {
LOGGER.info("Skipping edge {} because source ref is null",
edgeId);
continue;
}
if (targetRefNode == null) {
LOGGER.info("Skipping edge {} because target ref is null",
edgeId);
continue;
}
JsonNode dockersNode = edgeNode.get(EDITOR_DOCKERS);
double sourceDockersX = dockersNode.get(0).get(EDITOR_BOUNDS_X)
.asDouble();
double sourceDockersY = dockersNode.get(0).get(EDITOR_BOUNDS_Y)
.asDouble();
GraphicInfo sourceInfo = bpmnModel
.getGraphicInfo(BpmnJsonConverterUtil
.getElementId(sourceRefNode));
GraphicInfo targetInfo = bpmnModel
.getGraphicInfo(BpmnJsonConverterUtil
.getElementId(targetRefNode));
double sourceRefLineX = sourceInfo.getX() + sourceDockersX;
double sourceRefLineY = sourceInfo.getY() + sourceDockersY;
double nextPointInLineX;
double nextPointInLineY;
nextPointInLineX = dockersNode.get(1).get(EDITOR_BOUNDS_X)
.asDouble();
nextPointInLineY = dockersNode.get(1).get(EDITOR_BOUNDS_Y)
.asDouble();
if (dockersNode.size() == 2) {
nextPointInLineX += targetInfo.getX();
nextPointInLineY += targetInfo.getY();
}
Line2D firstLine = new Line2D(sourceRefLineX, sourceRefLineY,
nextPointInLineX, nextPointInLineY);
String sourceRefStencilId = BpmnJsonConverterUtil
.getStencilId(sourceRefNode);
String targetRefStencilId = BpmnJsonConverterUtil
.getStencilId(targetRefNode);
List<GraphicInfo> graphicInfoList = new ArrayList<GraphicInfo>();
AbstractContinuousCurve2D source2D = null;
if (DI_CIRCLES.contains(sourceRefStencilId)) {
source2D = new Circle2D(sourceInfo.getX() + sourceDockersX,
sourceInfo.getY() + sourceDockersY, sourceDockersX);
} else if (DI_RECTANGLES.contains(sourceRefStencilId)) {
source2D = createRectangle(sourceInfo);
} else if (DI_GATEWAY.contains(sourceRefStencilId)) {
source2D = createGateway(sourceInfo);
}
if (source2D != null) {
Collection<Point2D> intersections = source2D
.intersections(firstLine);
if ((intersections != null) && (intersections.size() > 0)) {
Point2D intersection = intersections.iterator().next();
graphicInfoList.add(createGraphicInfo(intersection.x(),
intersection.y()));
} else {
graphicInfoList.add(createGraphicInfo(sourceRefLineX,
sourceRefLineY));
}
}
Line2D lastLine = null;
if (dockersNode.size() > 2) {
for (int i = 1; i < (dockersNode.size() - 1); i++) {
double x = dockersNode.get(i).get(EDITOR_BOUNDS_X)
.asDouble();
double y = dockersNode.get(i).get(EDITOR_BOUNDS_Y)
.asDouble();
graphicInfoList.add(createGraphicInfo(x, y));
}
double startLastLineX = dockersNode.get(dockersNode.size() - 2)
.get(EDITOR_BOUNDS_X).asDouble();
double startLastLineY = dockersNode.get(dockersNode.size() - 2)
.get(EDITOR_BOUNDS_Y).asDouble();
double endLastLineX = dockersNode.get(dockersNode.size() - 1)
.get(EDITOR_BOUNDS_X).asDouble();
double endLastLineY = dockersNode.get(dockersNode.size() - 1)
.get(EDITOR_BOUNDS_Y).asDouble();
endLastLineX += targetInfo.getX();
endLastLineY += targetInfo.getY();
lastLine = new Line2D(startLastLineX, startLastLineY,
endLastLineX, endLastLineY);
} else {
lastLine = firstLine;
}
AbstractContinuousCurve2D target2D = null;
if (DI_RECTANGLES.contains(targetRefStencilId)) {
target2D = createRectangle(targetInfo);
} else if (DI_CIRCLES.contains(targetRefStencilId)) {
double targetDockersX = dockersNode.get(dockersNode.size() - 1)
.get(EDITOR_BOUNDS_X).asDouble();
double targetDockersY = dockersNode.get(dockersNode.size() - 1)
.get(EDITOR_BOUNDS_Y).asDouble();
target2D = new Circle2D(targetInfo.getX() + targetDockersX,
targetInfo.getY() + targetDockersY, targetDockersX);
} else if (DI_GATEWAY.contains(targetRefStencilId)) {
target2D = createGateway(targetInfo);
}
if (target2D != null) {
Collection<Point2D> intersections = target2D
.intersections(lastLine);
if ((intersections != null) && (intersections.size() > 0)) {
Point2D intersection = intersections.iterator().next();
graphicInfoList.add(createGraphicInfo(intersection.x(),
intersection.y()));
} else {
graphicInfoList.add(createGraphicInfo(lastLine.getPoint2()
.x(), lastLine.getPoint2().y()));
}
}
bpmnModel.addFlowGraphicInfoList(edgeId, graphicInfoList);
// if sequence has a name, just add a label graphic info
if (!"".equals(edgeNode.get("properties").get("name"))) {
bpmnModel.addLabelGraphicInfo(
edgeId,
createGraphicInfo(graphicInfoList.get(0).getX(),
graphicInfoList.get(0).getY()));
}
}
}
private Polyline2D createRectangle(GraphicInfo graphicInfo) {
Polyline2D rectangle = new Polyline2D(new Point2D(graphicInfo.getX(),
graphicInfo.getY()), new Point2D(graphicInfo.getX()
+ graphicInfo.getWidth(), graphicInfo.getY()), new Point2D(
graphicInfo.getX() + graphicInfo.getWidth(), graphicInfo.getY()
+ graphicInfo.getHeight()), new Point2D(
graphicInfo.getX(), graphicInfo.getY()
+ graphicInfo.getHeight()), new Point2D(
graphicInfo.getX(), graphicInfo.getY()));
return rectangle;
}
private Polyline2D createGateway(GraphicInfo graphicInfo) {
double middleX = graphicInfo.getX() + (graphicInfo.getWidth() / 2);
double middleY = graphicInfo.getY() + (graphicInfo.getHeight() / 2);
Polyline2D gatewayRectangle = new Polyline2D(new Point2D(
graphicInfo.getX(), middleY), new Point2D(middleX,
graphicInfo.getY()), new Point2D(graphicInfo.getX()
+ graphicInfo.getWidth(), middleY), new Point2D(middleX,
graphicInfo.getY() + graphicInfo.getHeight()), new Point2D(
graphicInfo.getX(), middleY));
return gatewayRectangle;
}
private GraphicInfo createGraphicInfo(double x, double y) {
GraphicInfo graphicInfo = new GraphicInfo();
graphicInfo.setX(x);
graphicInfo.setY(y);
return graphicInfo;
}
class FlowWithContainer {
protected SequenceFlow sequenceFlow;
protected FlowElementsContainer flowContainer;
public FlowWithContainer(SequenceFlow sequenceFlow,
FlowElementsContainer flowContainer) {
this.sequenceFlow = sequenceFlow;
this.flowContainer = flowContainer;
}
public SequenceFlow getSequenceFlow() {
return sequenceFlow;
}
public void setSequenceFlow(SequenceFlow sequenceFlow) {
this.sequenceFlow = sequenceFlow;
}
public FlowElementsContainer getFlowContainer() {
return flowContainer;
}
public void setFlowContainer(FlowElementsContainer flowContainer) {
this.flowContainer = flowContainer;
}
}
}
重新转换模板再查看流程图进行验证。
注：这样解决虽然能显示连线名称了，但是会出现连线名称显示位置不准确的问题。解决办法：重写DefaultProcessDiagramGenerator类的generateProcessDiagram方法：
public CustomProcessDiagramCanvas generateProcessDiagram(BpmnModel bpmnModel, String imageType,
List<String> highLightedActivities, List<String> highLightedFlows, String activityFontName,
String labelFontName, String annotationFontName, ClassLoader customClassLoader, double scaleFactor,
Color [] colors) {
prepareBpmnModel(bpmnModel);
CustomProcessDiagramCanvas processDiagramCanvas = initProcessDiagramCanvas(bpmnModel, imageType, activityFontName, labelFontName, annotationFontName, customClassLoader);
// Draw pool shape, if process is participant in collaboration
for (Pool pool : bpmnModel.getPools()) {
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(pool.getId());
processDiagramCanvas.drawPoolOrLane(pool.getName(), graphicInfo);
}
// Draw lanes
for (Process process : bpmnModel.getProcesses()) {
for (Lane lane : process.getLanes()) {
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(lane.getId());
processDiagramCanvas.drawPoolOrLane(lane.getName(), graphicInfo);
}
}
// Draw activities and their sequence-flows
for (Process process: bpmnModel.getProcesses()) {
List<FlowNode> flowNodeList= process.findFlowElementsOfType(FlowNode.class);
for (FlowNode flowNode : flowNodeList) {
drawActivity(processDiagramCanvas, bpmnModel, flowNode, highLightedActivities, highLightedFlows, scaleFactor, colors);
}
}
// Draw artifacts
for (Process process : bpmnModel.getProcesses()) {
for (Artifact artifact : process.getArtifacts()) {
drawArtifact(processDiagramCanvas, bpmnModel, artifact);
}
List<SubProcess> subProcesses = process.findFlowElementsOfType(SubProcess.class, true);
if (subProcesses != null) {
for (SubProcess subProcess : subProcesses) {
for (Artifact subProcessArtifact : subProcess.getArtifacts()) {
drawArtifact(processDiagramCanvas, bpmnModel, subProcessArtifact);
}
}
}
}
return processDiagramCanvas;
}
protected void drawActivity(CustomProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode,
List<String> highLightedActivities, List<String> highLightedFlows, double scaleFactor, Color[] colors) {
ActivityDrawInstruction drawInstruction = activityDrawInstructions.get(flowNode.getClass());
if (drawInstruction != null) {
drawInstruction.draw(processDiagramCanvas, bpmnModel, flowNode);
// Gather info on the multi instance marker
boolean multiInstanceSequential = false, multiInstanceParallel = false, collapsed = false;
if (flowNode instanceof Activity) {
Activity activity = (Activity) flowNode;
MultiInstanceLoopCharacteristics multiInstanceLoopCharacteristics = activity.getLoopCharacteristics();
if (multiInstanceLoopCharacteristics != null) {
multiInstanceSequential = multiInstanceLoopCharacteristics.isSequential();
multiInstanceParallel = !multiInstanceSequential;
}
}
// Gather info on the collapsed marker
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
if (flowNode instanceof SubProcess) {
collapsed = graphicInfo.getExpanded() != null && !graphicInfo.getExpanded();
} else if (flowNode instanceof CallActivity) {
collapsed = true;
}
if (scaleFactor == 1.0) {
// Actually draw the markers
processDiagramCanvas.drawActivityMarkers((int) graphicInfo.getX(), (int) graphicInfo.getY(),(int) graphicInfo.getWidth(), (int) graphicInfo.getHeight(),
multiInstanceSequential, multiInstanceParallel, collapsed);
}
// Draw highlighted activities
if (highLightedActivities.contains(flowNode.getId())) {
if(flowNode.getId().equals(highLightedActivities.get(highLightedActivities.size()-1))
&& !(flowNode instanceof EndEvent)) {//非结束节点，并且是当前节点
drawHighLight((flowNode instanceof StartEvent), processDiagramCanvas, bpmnModel.getGraphicInfo(flowNode.getId()), colors[1]);
}else {//普通节点
drawHighLight((flowNode instanceof StartEvent)||(flowNode instanceof EndEvent),processDiagramCanvas, bpmnModel.getGraphicInfo(flowNode.getId()), colors[0]);
}
}
}
// Outgoing transitions of activity
for (SequenceFlow sequenceFlow : flowNode.getOutgoingFlows()) {
boolean highLighted = (highLightedFlows.contains(sequenceFlow.getId()));
String defaultFlow = null;
if (flowNode instanceof Activity) {
defaultFlow = ((Activity) flowNode).getDefaultFlow();
} else if (flowNode instanceof Gateway) {
defaultFlow = ((Gateway) flowNode).getDefaultFlow();
}
boolean isDefault = false;
if (defaultFlow != null && defaultFlow.equalsIgnoreCase(sequenceFlow.getId())) {
isDefault = true;
}
// boolean drawConditionalIndicator = sequenceFlow.getConditionExpression() != null && !(flowNode instanceof Gateway);
String sourceRef = sequenceFlow.getSourceRef();
String targetRef = sequenceFlow.getTargetRef();
FlowElement sourceElement = bpmnModel.getFlowElement(sourceRef);
FlowElement targetElement = bpmnModel.getFlowElement(targetRef);
List<GraphicInfo> graphicInfoList = bpmnModel.getFlowLocationGraphicInfo(sequenceFlow.getId());
if (graphicInfoList != null && graphicInfoList.size() > 0) {
graphicInfoList = connectionPerfectionizer(processDiagramCanvas, bpmnModel, sourceElement, targetElement, graphicInfoList);
int xPoints[]= new int[graphicInfoList.size()];
int yPoints[]= new int[graphicInfoList.size()];
for (int i=1; i<graphicInfoList.size(); i++) {
GraphicInfo graphicInfo = graphicInfoList.get(i);
GraphicInfo previousGraphicInfo = graphicInfoList.get(i-1);
if (i == 1) {
xPoints[0] = (int) previousGraphicInfo.getX();
yPoints[0] = (int) previousGraphicInfo.getY();
}
xPoints[i] = (int) graphicInfo.getX();
yPoints[i] = (int) graphicInfo.getY();
}
//画高亮线
processDiagramCanvas.drawSequenceflow(xPoints, yPoints, false, isDefault, highLighted, scaleFactor, colors[0]);
// Draw sequenceflow label
// GraphicInfo labelGraphicInfo = bpmnModel.getLabelGraphicInfo(sequenceFlow.getId());
// if (labelGraphicInfo != null) {
// processDiagramCanvas.drawLabel(sequenceFlow.getName(), labelGraphicInfo, false);
// }else {//解决流程图连线名称不显示的BUG
GraphicInfo lineCenter = getLineCenter(graphicInfoList);
processDiagramCanvas.drawLabel(highLighted, sequenceFlow.getName(), lineCenter, Math.abs(xPoints[1]-xPoints[0]) >= 5);
// }
}
}
重点修改之处在注释的几行代码上，请读者自己查看思考。
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