package com.highdatas.mdm.process.canvas;
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import org.activiti.bpmn.model.*;
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import org.activiti.bpmn.model.Process;
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import org.activiti.image.impl.DefaultProcessDiagramCanvas;
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import org.activiti.image.impl.DefaultProcessDiagramGenerator;
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import java.util.Iterator;
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import java.util.List;
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public class ProcessDiagramGenerator extends DefaultProcessDiagramGenerator{
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@Override
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protected ProcessDiagramCanvas generateProcessDiagram(BpmnModel bpmnModel, String imageType, List<String> highLightedActivities, List<String> highLightedFlows, String activityFontName, String labelFontName,String annotationFontName, ClassLoader customClassLoader, double scaleFactor){
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prepareBpmnModel(bpmnModel);
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ProcessDiagramCanvas processDiagramCanvas = initProcessDiagramCanvas(bpmnModel, imageType, activityFontName, labelFontName, customClassLoader);
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for (Pool pool : bpmnModel.getPools()) {
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GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(pool.getId());
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processDiagramCanvas.drawPoolOrLane(pool.getName(), graphicInfo);
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}
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Process process;
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for (Iterator<Process> iter = bpmnModel.getProcesses().iterator(); iter.hasNext(); ) {
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process = (Process)iter.next();
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for (Lane lane : process.getLanes()) {
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GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(lane.getId());
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processDiagramCanvas.drawPoolOrLane(lane.getName(), graphicInfo);
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}
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}
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for (FlowNode flowNode : ((Process)bpmnModel.getProcesses().get(0)).findFlowElementsOfType(FlowNode.class)) {
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drawActivity(processDiagramCanvas, bpmnModel, flowNode, highLightedActivities, highLightedFlows, scaleFactor);
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}
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for (Iterator<Process> iter = bpmnModel.getProcesses().iterator(); iter.hasNext(); ) { process = (Process)iter.next();
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for (Artifact artifact : process.getArtifacts()) {
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drawArtifact(processDiagramCanvas, bpmnModel, artifact);
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}
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}
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return processDiagramCanvas;
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}
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protected static ProcessDiagramCanvas initProcessDiagramCanvas(BpmnModel bpmnModel, String imageType, String activityFontName, String labelFontName, ClassLoader customClassLoader){
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double minX = 1.7976931348623157E+308D;
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double maxX = 0.0D;
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double minY = 1.7976931348623157E+308D;
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double maxY = 0.0D;
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for (Pool pool : bpmnModel.getPools()) {
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GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(pool.getId());
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minX = graphicInfo.getX();
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maxX = graphicInfo.getX() + graphicInfo.getWidth();
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minY = graphicInfo.getY();
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maxY = graphicInfo.getY() + graphicInfo.getHeight();
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}
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List<FlowNode> flowNodes = gatherAllFlowNodes(bpmnModel);
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for (FlowNode flowNode : flowNodes)
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{
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GraphicInfo flowNodeGraphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
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if (flowNodeGraphicInfo.getX() + flowNodeGraphicInfo.getWidth() > maxX) {
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maxX = flowNodeGraphicInfo.getX() + flowNodeGraphicInfo.getWidth();
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}
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if (flowNodeGraphicInfo.getX() < minX) {
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minX = flowNodeGraphicInfo.getX();
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}
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if (flowNodeGraphicInfo.getY() + flowNodeGraphicInfo.getHeight() > maxY) {
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maxY = flowNodeGraphicInfo.getY() + flowNodeGraphicInfo.getHeight();
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}
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if (flowNodeGraphicInfo.getY() < minY) {
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minY = flowNodeGraphicInfo.getY();
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}
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for (SequenceFlow sequenceFlow : flowNode.getOutgoingFlows()) {
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List<GraphicInfo> graphicInfoList = bpmnModel.getFlowLocationGraphicInfo(sequenceFlow.getId());
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if (graphicInfoList != null) {
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for (GraphicInfo graphicInfo : graphicInfoList)
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{
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if (graphicInfo.getX() > maxX) {
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maxX = graphicInfo.getX();
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}
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if (graphicInfo.getX() < minX) {
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minX = graphicInfo.getX();
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}
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if (graphicInfo.getY() > maxY) {
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maxY = graphicInfo.getY();
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}
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if (graphicInfo.getY() < minY) {
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minY = graphicInfo.getY();
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}
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}
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}
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}
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}
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GraphicInfo graphicInfo;
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List<Artifact> artifacts = gatherAllArtifacts(bpmnModel);
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for (Artifact artifact : artifacts)
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{
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GraphicInfo artifactGraphicInfo = bpmnModel.getGraphicInfo(artifact.getId());
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if (artifactGraphicInfo != null)
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{
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if (artifactGraphicInfo.getX() + artifactGraphicInfo.getWidth() > maxX) {
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maxX = artifactGraphicInfo.getX() + artifactGraphicInfo.getWidth();
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}
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if (artifactGraphicInfo.getX() < minX) {
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minX = artifactGraphicInfo.getX();
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}
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if (artifactGraphicInfo.getY() + artifactGraphicInfo.getHeight() > maxY) {
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maxY = artifactGraphicInfo.getY() + artifactGraphicInfo.getHeight();
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}
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if (artifactGraphicInfo.getY() < minY) {
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minY = artifactGraphicInfo.getY();
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}
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}
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List<GraphicInfo> graphicInfoList = bpmnModel.getFlowLocationGraphicInfo(artifact.getId());
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if (graphicInfoList != null) {
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for (Iterator<GraphicInfo> iterator = graphicInfoList.iterator(); iterator.hasNext(); ) { graphicInfo = (GraphicInfo)iterator.next();
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if (graphicInfo.getX() > maxX) {
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maxX = graphicInfo.getX();
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}
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if (graphicInfo.getX() < minX) {
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minX = graphicInfo.getX();
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}
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if (graphicInfo.getY() > maxY) {
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maxY = graphicInfo.getY();
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}
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if (graphicInfo.getY() < minY) {
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minY = graphicInfo.getY();
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}
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}
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}
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}
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int nrOfLanes = 0;
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for (Process process : bpmnModel.getProcesses()) {
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for (Lane l : process.getLanes())
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{
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++nrOfLanes;
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graphicInfo = bpmnModel.getGraphicInfo(l.getId());
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if (graphicInfo.getX() + graphicInfo.getWidth() > maxX) {
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maxX = graphicInfo.getX() + graphicInfo.getWidth();
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}
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if (graphicInfo.getX() < minX) {
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minX = graphicInfo.getX();
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}
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if (graphicInfo.getY() + graphicInfo.getHeight() > maxY) {
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maxY = graphicInfo.getY() + graphicInfo.getHeight();
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}
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if (graphicInfo.getY() < minY) {
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minY = graphicInfo.getY();
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}
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}
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}
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if ((flowNodes.isEmpty()) && (bpmnModel.getPools().isEmpty()) && (nrOfLanes == 0))
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{
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minX = 0.0D;
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minY = 0.0D;
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}
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return new ProcessDiagramCanvas((int) maxX + 10, (int) maxY + 10,
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(int) minX, (int) minY, imageType);
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}
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@Override
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protected void drawActivity(DefaultProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode, List<String> highLightedActivities, List<String> highLightedFlows, double scaleFactor){
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ActivityDrawInstruction drawInstruction = (ActivityDrawInstruction)this.activityDrawInstructions.get(flowNode.getClass());
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if (drawInstruction != null)
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{
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drawInstruction.draw(processDiagramCanvas, bpmnModel, flowNode);
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boolean multiInstanceSequential = false; boolean multiInstanceParallel = false; boolean collapsed = false;
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if (flowNode instanceof Activity) {
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Activity activity = (Activity)flowNode;
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MultiInstanceLoopCharacteristics multiInstanceLoopCharacteristics = activity.getLoopCharacteristics();
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if (multiInstanceLoopCharacteristics != null) {
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multiInstanceSequential = multiInstanceLoopCharacteristics.isSequential();
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multiInstanceParallel = !(multiInstanceSequential);
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}
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}
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GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
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if (flowNode instanceof SubProcess)
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collapsed = (graphicInfo.getExpanded() != null) && (!(graphicInfo.getExpanded().booleanValue()));
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else if (flowNode instanceof CallActivity) {
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collapsed = true;
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}
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if (scaleFactor == 1.0D)
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{
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processDiagramCanvas.drawActivityMarkers((int)graphicInfo.getX(), (int)graphicInfo.getY(), (int)graphicInfo.getWidth(), (int)graphicInfo.getHeight(), multiInstanceSequential, multiInstanceParallel, collapsed);
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}
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if (highLightedActivities.contains(flowNode.getId())) {
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processDiagramCanvas.drawHighLight((int)graphicInfo.getX(), (int)graphicInfo.getY(), (int)graphicInfo.getWidth(), (int)graphicInfo.getHeight());
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}
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}
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for (SequenceFlow sequenceFlow : flowNode.getOutgoingFlows()) {
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boolean highLighted = highLightedFlows.contains(sequenceFlow.getId());
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String defaultFlow = null;
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if (flowNode instanceof Activity)
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defaultFlow = ((Activity)flowNode).getDefaultFlow();
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else if (flowNode instanceof Gateway) {
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defaultFlow = ((Gateway)flowNode).getDefaultFlow();
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}
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boolean isDefault = false;
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if ((defaultFlow != null) && (defaultFlow.equalsIgnoreCase(sequenceFlow.getId()))) {
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isDefault = true;
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}
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boolean drawConditionalIndicator = (sequenceFlow.getConditionExpression() != null) && (!(flowNode instanceof Gateway));
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String sourceRef = sequenceFlow.getSourceRef();
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String targetRef = sequenceFlow.getTargetRef();
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FlowElement sourceElement = bpmnModel.getFlowElement(sourceRef);
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FlowElement targetElement = bpmnModel.getFlowElement(targetRef);
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List graphicInfoList = bpmnModel.getFlowLocationGraphicInfo(sequenceFlow.getId());
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if ((graphicInfoList != null) && (graphicInfoList.size() > 0)) {
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graphicInfoList = connectionPerfectionizer(processDiagramCanvas, bpmnModel, sourceElement, targetElement, graphicInfoList);
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int[] xPoints = new int[graphicInfoList.size()];
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int[] yPoints = new int[graphicInfoList.size()];
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for (int i = 1; i < graphicInfoList.size(); ++i) {
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GraphicInfo graphicInfo = (GraphicInfo)graphicInfoList.get(i);
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GraphicInfo previousGraphicInfo = (GraphicInfo)graphicInfoList.get(i - 1);
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if (i == 1) {
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xPoints[0] = (int)previousGraphicInfo.getX();
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yPoints[0] = (int)previousGraphicInfo.getY();
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}
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xPoints[i] = (int)graphicInfo.getX();
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yPoints[i] = (int)graphicInfo.getY();
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}
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processDiagramCanvas.drawSequenceflow(xPoints, yPoints, drawConditionalIndicator, isDefault, highLighted, scaleFactor);
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GraphicInfo labelGraphicInfo = bpmnModel.getLabelGraphicInfo(sequenceFlow.getId());
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if (labelGraphicInfo != null) {
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processDiagramCanvas.drawLabel(sequenceFlow.getName(), labelGraphicInfo, false);
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}
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else {
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GraphicInfo lineCenter = getLineCenter(graphicInfoList);
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processDiagramCanvas.drawLabel(sequenceFlow.getName(), lineCenter, false);
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}
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}
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}
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if (flowNode instanceof FlowElementsContainer)
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for (FlowElement nestedFlowElement : ((FlowElementsContainer)flowNode).getFlowElements())
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if (nestedFlowElement instanceof FlowNode)
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drawActivity(processDiagramCanvas, bpmnModel, (FlowNode)nestedFlowElement, highLightedActivities, highLightedFlows, scaleFactor);
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}
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}
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