应用Activiti流程跟踪监控图路径线和节点高亮显示

[应用]Activiti流程跟踪监控图路径线和节点高亮显示流程图高亮显示继承的方式扩展它的画图类。闲话少说我们切入正题。由于这是公司完整项目上的一个小模块，而最近公司不再做进一步的开发，只希望对大家有所协助。。。1，先晒一下，我做出来的效果。2，详细实现步骤:,Action/**经过指定的流程实例id生成流程监控图*@parammapping@paramform@paramrequest@paramresponse@return*/publicActionForwardinstanceDiagram(ActionMappingmapping,ActionFormform,HttpServletRequestrequest,HttpServletResponseresponse){/**ID*/StringinstanceId=StringUtils.trimToEmpty(request.getParameter("instanceId"));//设置页面不缓存response.setHeader("Pragma","No-cache");response.setHeader("Cache-Control","no-cache");response.setDateHeader("Expires",0);try{HistoricProcessInstancehistoricProcessInstance=historyService.createHistoricProcessInstanceQuery().processInstanceId(instanceId).singleResult();if(historicProcessInstance==null){thrownewRuntimeException("取得流程图异样!");}else{BpmnModelbpmnModel=repositoryService.getBpmnModel(historicProcessInstance.getProcessDefinitionId());List<HistoricActivityInstance>activityInstances=historyService.createHistoricActivityInstanceQuery().processInstanceId(instanceId).orderByHistoricActivityInstanceId().asc()取得流程走过的节点，并依据节点生成先后挨次排序List<String>activitiIds=newArrayList<String>();List<String>flowIds=newArrayList<String>();List<String>currentFlowIds=newArrayList<String>();ProcessDefinitionEntityprocessDefinition=(ProcessDefinitionEntity)((RepositoryServiceImpl)repositoryService).getDeployedProcessDefinition(historicProcessInstance.getProcessDefinitionId());flowIds=flowMoniService.getHighLightedFlows(processDefinition,activityInstances);currentFlowIds=flowMoniService.getCurrentHighLightedFlows(processDefinition,activityInstances);for(HistoricActivityInstancehai:activityInstances){activitiIds.add(hai.getActivityId());}List<Map<String,Boolean>>highLightedActivities=flowMoniService.getHighLightedActivities(processDefinition,activityInstances);ProcessEngineImpldefaultProcessEngine=(ProcessEngineImpl)ProcessEngines.getDefaultProcessEngine();Context.setProcessEngineConfiguration(defaultProcessEngine.getProcessEngineConfiguration());Context.setProcessEngineConfiguration(processEngineFactoryBean.getProcessEngineConfiguration());InputStreamimageStream=BlazerProcessDiagramGenerator.generateDiagram2(bpmnModel,"png",highLightedActivities,flowIds,currentFlowIds);response.setContentType("image/png");OutputStreamos=response.getOutputStream();intbytesRead=0;byte[]buffer=newbyte[8192];while((bytesRead=imageStream.read(buffer,0,8192))!=-1){os.write(buffer,0,bytesRead);}os.close();imageStream.close();}}catch(Exceptione){logger.error("e);thrownewRuntimeException("取得流程图异样!");}returnnull;},Serviceid继续加强)@OverridepublicList<String>getHighLightedFlows(ProcessDefinitionEntityprocessDefinitionEntity,List<HistoricActivityInstance>historicActivityInstances){List<String>highFlowsnewArrayList<String>();//flowIdfor(inti=0;i<historicActivityInstances.size()1;i++){//ActivityImplactivityImpl=processDefinitionEntity.findActivity(historicActivityInstances.get(i).getActivityId());//信息List<ActivityImpl>sameStartTimeNodes=newArrayList<ActivityImpl>();//ActivityImplsameActivityImpl1=processDefinitionEntity.findActivity(historicActivityInstances.get(i+1).getActivityId());//将后面第一个节点放在时间相同节点的集合里sameStartTimeNodes.add(sameActivityImpl1);for(intj=i+1;j<historicActivityInstances.size()-1;j++){HistoricActivityInstanceactivityImpl1=historicActivityInstances.get(j);//后续第一个节点HistoricActivityInstanceactivityImpl2=historicActivityInstances.get(j+1);//后续第二个节点if(activityImpl1.getStartTime().equals(activityImpl2.getStartTime())){//一个节点和第二个节点开头时间相同保存ActivityImplsameActivityImpl2=processDefinitionEntity.findActivity(activityImpl2.getActivityId());sameStartTimeNodes.add(sameActivityImpl2);else{//break;}}List<PvmTransition>pvmTransitions=activityImpl.getOutgoingTransitions();//去的线for(PvmTransitionpvmTransitionpvmTransitions){//行遍历ActivityImplpvmActivityImpl=(ActivityImpl)pvmTransition.getDestination();//假若取出的线的目标节点进行高亮显示if(sameStartTimeNodes.contains(pvmActivityImpl)){highFlows.add(pvmTransition.getId());}}}returnhighFlows;}@OverridepublicList<Map<String,Boolean>>getHighLightedActivities(ProcessDefinitionEntityprocessDefinition,List<HistoricActivityInstance>historicActivityInstances){List<Map<String,Boolean>>highLightedActivities=newArrayList<Map<String,Boolean>>();intactivityCount=historicActivityInstances.size();Map<String,Boolean>activityMap=newHashMap<String,Boolean>();activityMap.put(historicActivityInstances.get(historicActivityInstances.size()-1).getActivityId(),true);highLightedActivities.add(activityMap);booleanfindCurrActivity=true;//是否查询并发任务节点for(intjactivityCount2;j0;j--){//推断前面节点是否与Map<String,Boolean>activityMap2=newHashMap<String,Boolean>();HistoricActivityInstanceactivityImpl1=historicActivityInstances.get(j);//if(findCurrActivity){HistoricActivityInstanceactivityImpl2=historicActivityInstances.get(j+1);//当前节点if(activityImpl1.getStartTime().equals(activityImpl2.getStartTime())){Stringtype=activityImpl1.getActivityType();//排除系统自动执行节点if("userTask".equals(type)||"endEvent".equals(type)){activityMap2.put(activityImpl1.getActivityId(),false);}else{activityMap2.put(activityImpl1.getActivityId(),false);}}else{activityMap2.put(activityImpl1.getActivityId(),false);findCurrActivity=false;}highLightedActivities.add(activityMap2);}else{activityMap2.put(activityImpl1.getAct