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com.activiti.service.editor.BpmnDisplayJsonConverter Maven / Gradle / Ivy
/* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.activiti.service.editor;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.activiti.bpmn.model.Artifact;
import org.activiti.bpmn.model.Association;
import org.activiti.bpmn.model.BpmnModel;
import org.activiti.bpmn.model.ErrorEventDefinition;
import org.activiti.bpmn.model.Event;
import org.activiti.bpmn.model.EventDefinition;
import org.activiti.bpmn.model.FlowElement;
import org.activiti.bpmn.model.GraphicInfo;
import org.activiti.bpmn.model.Lane;
import org.activiti.bpmn.model.MessageEventDefinition;
import org.activiti.bpmn.model.Pool;
import org.activiti.bpmn.model.SequenceFlow;
import org.activiti.bpmn.model.ServiceTask;
import org.activiti.bpmn.model.SignalEventDefinition;
import org.activiti.bpmn.model.SubProcess;
import org.activiti.bpmn.model.TextAnnotation;
import org.activiti.bpmn.model.TimerEventDefinition;
import org.activiti.editor.language.json.converter.BpmnJsonConverter;
import org.activiti.editor.language.json.converter.util.CollectionUtils;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import com.activiti.domain.editor.AbstractModel;
import com.activiti.service.editor.mapper.EventInfoMapper;
import com.activiti.service.editor.mapper.InfoMapper;
import com.activiti.service.editor.mapper.ReceiveTaskInfoMapper;
import com.activiti.service.editor.mapper.SequenceFlowInfoMapper;
import com.activiti.service.editor.mapper.ServiceTaskInfoMapper;
import com.activiti.service.editor.mapper.UserTaskInfoMapper;
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;
@Component
public class BpmnDisplayJsonConverter {
private final Logger log = LoggerFactory.getLogger(BpmnDisplayJsonConverter.class);
protected BpmnJsonConverter bpmnJsonConverter = new BpmnJsonConverter();
protected ObjectMapper objectMapper = new ObjectMapper();
protected List eventElementTypes = new ArrayList();
protected Map propertyMappers = new HashMap();
public BpmnDisplayJsonConverter() {
eventElementTypes.add("StartEvent");
eventElementTypes.add("EndEvent");
eventElementTypes.add("BoundaryEvent");
eventElementTypes.add("IntermediateCatchEvent");
eventElementTypes.add("ThrowEvent");
propertyMappers.put("BoundaryEvent", new EventInfoMapper());
propertyMappers.put("EndEvent", new EventInfoMapper());
propertyMappers.put("IntermediateCatchEvent", new EventInfoMapper());
propertyMappers.put("ReceiveTask", new ReceiveTaskInfoMapper());
propertyMappers.put("StartEvent", new EventInfoMapper());
propertyMappers.put("SequenceFlow", new SequenceFlowInfoMapper());
propertyMappers.put("ServiceTask", new ServiceTaskInfoMapper());
propertyMappers.put("ThrowEvent", new EventInfoMapper());
propertyMappers.put("UserTask", new UserTaskInfoMapper());
}
public void processProcessElements(AbstractModel processModel, ObjectNode displayNode, GraphicInfo diagramInfo) {
BpmnModel pojoModel = null;
if (!StringUtils.isEmpty(processModel.getModelEditorJson())) {
try {
JsonNode modelNode = objectMapper.readTree(processModel.getModelEditorJson());
pojoModel = bpmnJsonConverter.convertToBpmnModel(modelNode);
} catch (Exception e) {
log.error("Error transforming json to pojo " + processModel.getId(), e);
}
}
if (pojoModel == null || pojoModel.getLocationMap().isEmpty()) return;
ArrayNode elementArray = objectMapper.createArrayNode();
ArrayNode flowArray = objectMapper.createArrayNode();
if (CollectionUtils.isNotEmpty(pojoModel.getPools())) {
ArrayNode poolArray = objectMapper.createArrayNode();
boolean firstElement = true;
for (Pool pool : pojoModel.getPools()) {
ObjectNode poolNode = objectMapper.createObjectNode();
poolNode.put("id", pool.getId());
poolNode.put("name", pool.getName());
GraphicInfo poolInfo = pojoModel.getGraphicInfo(pool.getId());
fillGraphicInfo(poolNode, poolInfo, true);
org.activiti.bpmn.model.Process process = pojoModel.getProcess(pool.getId());
if (process != null && CollectionUtils.isNotEmpty(process.getLanes())) {
ArrayNode laneArray = objectMapper.createArrayNode();
for (Lane lane : process.getLanes()) {
ObjectNode laneNode = objectMapper.createObjectNode();
laneNode.put("id", lane.getId());
laneNode.put("name", lane.getName());
fillGraphicInfo(laneNode, pojoModel.getGraphicInfo(lane.getId()), true);
laneArray.add(laneNode);
}
poolNode.put("lanes", laneArray);
}
poolArray.add(poolNode);
double rightX = poolInfo.getX() + poolInfo.getWidth();
double bottomY = poolInfo.getY() + poolInfo.getHeight();
double middleX = poolInfo.getX() + (poolInfo.getWidth() / 2);
if (firstElement || middleX < diagramInfo.getX()) {
diagramInfo.setX(middleX);
}
if (firstElement || poolInfo.getY() < diagramInfo.getY()) {
diagramInfo.setY(poolInfo.getY());
}
if (rightX > diagramInfo.getWidth()) {
diagramInfo.setWidth(rightX);
}
if (bottomY > diagramInfo.getHeight()) {
diagramInfo.setHeight(bottomY);
}
firstElement = false;
}
displayNode.put("pools", poolArray);
} else {
// in initialize with fake x and y to make sure the minimal
// values are set
diagramInfo.setX(9999);
diagramInfo.setY(1000);
}
for (org.activiti.bpmn.model.Process process : pojoModel.getProcesses()) {
processElements(process.getFlowElements(), pojoModel, elementArray, flowArray, diagramInfo);
processArtifacts(process.getArtifacts(), pojoModel, elementArray, flowArray, diagramInfo);
}
displayNode.put("elements", elementArray);
displayNode.put("flows", flowArray);
displayNode.put("diagramBeginX", diagramInfo.getX());
displayNode.put("diagramBeginY", diagramInfo.getY());
displayNode.put("diagramWidth", diagramInfo.getWidth());
displayNode.put("diagramHeight", diagramInfo.getHeight());
}
protected void processElements(Collection elementList, BpmnModel model, ArrayNode elementArray,
ArrayNode flowArray, GraphicInfo diagramInfo) {
for (FlowElement element : elementList) {
if (element instanceof SequenceFlow) {
ObjectNode elementNode = objectMapper.createObjectNode();
SequenceFlow flow = (SequenceFlow) element;
elementNode.put("id", flow.getId());
elementNode.put("type", "sequenceFlow");
elementNode.put("sourceRef", flow.getSourceRef());
elementNode.put("targetRef", flow.getTargetRef());
List flowInfo = model.getFlowLocationGraphicInfo(flow.getId());
if (CollectionUtils.isNotEmpty(flowInfo)) {
ArrayNode waypointArray = objectMapper.createArrayNode();
for (GraphicInfo graphicInfo : flowInfo) {
ObjectNode pointNode = objectMapper.createObjectNode();
fillGraphicInfo(pointNode, graphicInfo, false);
waypointArray.add(pointNode);
fillDiagramInfo(graphicInfo, diagramInfo);
}
elementNode.put("waypoints", waypointArray);
String className = element.getClass().getSimpleName();
if (propertyMappers.containsKey(className)) {
elementNode.put("properties", propertyMappers.get(className).map(element));
}
flowArray.add(elementNode);
}
} else {
ObjectNode elementNode = objectMapper.createObjectNode();
elementNode.put("id", element.getId());
elementNode.put("name", element.getName());
GraphicInfo graphicInfo = model.getGraphicInfo(element.getId());
if (graphicInfo != null) {
fillGraphicInfo(elementNode, graphicInfo, true);
fillDiagramInfo(graphicInfo, diagramInfo);
}
String className = element.getClass().getSimpleName();
elementNode.put("type", className);
fillEventTypes(className, element, elementNode);
if (element instanceof ServiceTask) {
ServiceTask serviceTask = (ServiceTask) element;
if (ServiceTask.MAIL_TASK.equals(serviceTask.getType())) {
elementNode.put("taskType", "mail");
} else if ("camel".equals(serviceTask.getType())) {
elementNode.put("taskType", "camel");
} else if ("mule".equals(serviceTask.getType())) {
elementNode.put("taskType", "mule");
}
}
if (propertyMappers.containsKey(className)) {
elementNode.put("properties", propertyMappers.get(className).map(element));
}
elementArray.add(elementNode);
if (element instanceof SubProcess) {
SubProcess subProcess = (SubProcess) element;
processElements(subProcess.getFlowElements(), model, elementArray, flowArray, diagramInfo);
processArtifacts(subProcess.getArtifacts(), model, elementArray, flowArray, diagramInfo);
}
}
}
}
protected void processArtifacts(Collection artifactList,
BpmnModel model, ArrayNode elementArray, ArrayNode flowArray,
GraphicInfo diagramInfo) {
for (Artifact artifact : artifactList) {
if (artifact instanceof Association) {
ObjectNode elementNode = objectMapper.createObjectNode();
Association flow = (Association) artifact;
elementNode.put("id", flow.getId());
elementNode.put("type", "association");
elementNode.put("sourceRef", flow.getSourceRef());
elementNode.put("targetRef", flow.getTargetRef());
fillWaypoints(flow.getId(), model, elementNode, diagramInfo);
flowArray.add(elementNode);
} else {
ObjectNode elementNode = objectMapper.createObjectNode();
elementNode.put("id", artifact.getId());
if (artifact instanceof TextAnnotation) {
TextAnnotation annotation = (TextAnnotation) artifact;
elementNode.put("text", annotation.getText());
}
GraphicInfo graphicInfo = model.getGraphicInfo(artifact.getId());
if (graphicInfo != null) {
fillGraphicInfo(elementNode, graphicInfo, true);
fillDiagramInfo(graphicInfo, diagramInfo);
}
String className = artifact.getClass().getSimpleName();
elementNode.put("type", className);
elementArray.add(elementNode);
}
}
}
protected void fillWaypoints(String id, BpmnModel model, ObjectNode elementNode, GraphicInfo diagramInfo) {
List flowInfo = model.getFlowLocationGraphicInfo(id);
ArrayNode waypointArray = objectMapper.createArrayNode();
for (GraphicInfo graphicInfo : flowInfo) {
ObjectNode pointNode = objectMapper.createObjectNode();
fillGraphicInfo(pointNode, graphicInfo, false);
waypointArray.add(pointNode);
fillDiagramInfo(graphicInfo, diagramInfo);
}
elementNode.put("waypoints", waypointArray);
}
protected void fillEventTypes(String className, FlowElement element, ObjectNode elementNode) {
if (eventElementTypes.contains(className)) {
Event event = (Event) element;
if (CollectionUtils.isNotEmpty(event.getEventDefinitions())) {
EventDefinition eventDef = event.getEventDefinitions().get(0);
ObjectNode eventNode = objectMapper.createObjectNode();
if (eventDef instanceof TimerEventDefinition) {
TimerEventDefinition timerDef = (TimerEventDefinition) eventDef;
eventNode.put("type", "timer");
if (StringUtils.isNotEmpty(timerDef.getTimeCycle())) {
eventNode.put("timeCycle", timerDef.getTimeCycle());
}
if (StringUtils.isNotEmpty(timerDef.getTimeDate())) {
eventNode.put("timeDate", timerDef.getTimeDate());
}
if (StringUtils.isNotEmpty(timerDef.getTimeDuration())) {
eventNode.put("timeDuration", timerDef.getTimeDuration());
}
} else if (eventDef instanceof ErrorEventDefinition) {
ErrorEventDefinition errorDef = (ErrorEventDefinition) eventDef;
eventNode.put("type", "error");
if (StringUtils.isNotEmpty(errorDef.getErrorCode())) {
eventNode.put("errorCode", errorDef.getErrorCode());
}
} else if (eventDef instanceof SignalEventDefinition) {
SignalEventDefinition signalDef = (SignalEventDefinition) eventDef;
eventNode.put("type", "signal");
if (StringUtils.isNotEmpty(signalDef.getSignalRef())) {
eventNode.put("signalRef", signalDef.getSignalRef());
}
} else if (eventDef instanceof MessageEventDefinition) {
MessageEventDefinition messageDef = (MessageEventDefinition) eventDef;
eventNode.put("type", "message");
if (StringUtils.isNotEmpty(messageDef.getMessageRef())) {
eventNode.put("messageRef", messageDef.getMessageRef());
}
}
elementNode.put("eventDefinition", eventNode);
}
}
}
protected void fillGraphicInfo(ObjectNode elementNode, GraphicInfo graphicInfo, boolean includeWidthAndHeight) {
commonFillGraphicInfo(elementNode, graphicInfo.getX(),
graphicInfo.getY(), graphicInfo.getWidth(),
graphicInfo.getHeight(), includeWidthAndHeight);
}
protected void commonFillGraphicInfo(ObjectNode elementNode, double x,
double y, double width, double height, boolean includeWidthAndHeight) {
elementNode.put("x", x);
elementNode.put("y", y);
if (includeWidthAndHeight) {
elementNode.put("width", width);
elementNode.put("height", height);
}
}
protected void fillDiagramInfo(GraphicInfo graphicInfo, GraphicInfo diagramInfo) {
double rightX = graphicInfo.getX() + graphicInfo.getWidth();
double bottomY = graphicInfo.getY() + graphicInfo.getHeight();
double middleX = graphicInfo.getX() + (graphicInfo.getWidth() / 2);
if (middleX < diagramInfo.getX()) {
diagramInfo.setX(middleX);
}
if (graphicInfo.getY() < diagramInfo.getY()) {
diagramInfo.setY(graphicInfo.getY());
}
if (rightX > diagramInfo.getWidth()) {
diagramInfo.setWidth(rightX);
}
if (bottomY > diagramInfo.getHeight()) {
diagramInfo.setHeight(bottomY);
}
}
}
