[英]Get Process Diagram with Service Task in Activiti
I'm using Activiti 5.22.0. 我正在使用Activiti 5.22.0。
I use Activiti Designer plugin in Eclispe to create a process. 我使用Eclispe中的Activiti Designer插件来创建进程。
Now I want to use a service task to get process diagram with current task higlighted and save it to database to show on web later. 现在,我想使用服务任务来获取带有当前任务的流程图,并将其保存到数据库中以便以后在Web上显示。
I'm new to Activiti so I really don't know what I should to write in Java class of Service Task to get process diagram image. 我是Activiti的新手,所以我真的不知道应该如何在Service Task的Java类中编写什么才能获取流程图。
Can you help me? 你能帮助我吗? Thank you very much.
非常感谢你。
Activiti comes with a Diagram generator in the org.activiti.image
module. Activiti在
org.activiti.image
模块中带有一个Diagram生成器。 use can use the DefaultDiagramGenerator
for your case. 使用可以为您的案例使用
DefaultDiagramGenerator
。 below is a sample code to get you started. 以下是示例代码,可以帮助您入门。 please inject the required services.
请注入所需的服务。
/**
* Get Process instance diagram
*/
public InputStream getProcessDiagram(String processInstanceId) {
ProcessInstance processInstance = runtimeService.createProcessInstanceQuery()
.processInstanceId(processInstanceId).singleResult();
// null check
if (processInstance != null) {
// get process model
BpmnModel model = repositoryService.getBpmnModel(processInstance.getProcessDefinitionId());
if (model != null && model.getLocationMap().size() > 0) {
ProcessDiagramGenerator generator = new DefaultProcessDiagramGenerator();
return generator.generateDiagram(model, ActivitiConstants.PROCESS_INSTANCE_IMAGE_FORMAT,
runtimeService.getActiveActivityIds(processInstanceId));
}
}
return null;
}
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