activiti5/6 系列之--Activiti 读取并转换BPMN2文件-白红宇

activiti5/6 系列之--Activiti 读取并转换BPMN2文件

阅读量：6852 次

发布时间：2019-06-26

本文共 4133 字，大约阅读时间需要 13 分钟。

统一的BPMN标准，对工作流的流程定义采用BPMN统一格式。BPMN流程文件可以使用eclipse bpmn2插件开发比如eclipse bpmn2 modeler或者idea activiti插件。


     
     
       
        
        
        
          
             
                
                   
          
                  
               
              
        
         SequenceFlow_1
            
           
             
                
                   
          
                  
               
              
        
         SequenceFlow_1
              
        
         SequenceFlow_2
              
                
                 
                 
                 
                 
                 
                 
                 
                   
          
           DataInput_8
                    
          
           DataInput_9
                    
          
           DataInput_10
                    
          
           DataInput_11
                    
          
           DataInput_12
                    
          
           DataInput_13
                    
          
           DataInput_14
                  
                 
               
              
                
         
          DataInput_8
                 
                   
          
           ImpIndexFile
                    
          
           DataInput_8
                  
               
              
                
         
          DataInput_9
                 
                   
          
           1
                    
          
           DataInput_9
                  
               
              
                
         
          DataInput_10
               
              
                
         
          DataInput_11
               
              
                
         
          DataInput_12
                 
                   
          
           true
                    
          
           DataInput_12
                  
               
              
                
         
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           { "executeMode":"manual"}
                    
          
           DataInput_13
                  
               
              
                
         
          DataInput_14
                 
                   
          
           en-UK
                    
          
           DataInput_14
                  
               
            
           
           
             
                
                   
          
                  
               
              
        
         SequenceFlow_2

如下是对该类型文件的解析工具类和方法。

public void init() throws XMLStreamException, IOException {        for (int i = 0; i < bpmnLocation.length; i++) {            InputStream is = bpmnLocation[i].getInputStream();            byte[] encoded = IOUtils.toByteArray(is);            String bpmnResource = new String(encoded, Charset.forName("UTF-8"));            BpmnXMLConverter converter = new BpmnXMLConverter();            XMLInputFactory factory = XMLInputFactory.newInstance();            @Cleanup XMLStreamReader reader = factory.createXMLStreamReader(bpmnLocation[i].getInputStream());            BpmnModel bpmnModel = converter.convertToBpmnModel(reader);            Process process = bpmnModel.getProcesses().get(0);            ProcessDefinition processDefinition = new ProcessDefinition();            processDefinition.setProcessSource(bpmnResource);            processDefinition.setProcessId(process.getId());            processDefinition.setProcessName(process.getName());            List
     
       flowElementList = (List
      
       ) process.getFlowElements();            Map
       
         flowElementMap = new HashMap();            for (FlowElement flowElement : flowElementList) {                flowElementMap.put(flowElement.getId(),flowElement);            }            processDefinition.setFlowElementMap(flowElementMap);            ProcessDataUtil.processDefinitionMap.put(process.getId(), processDefinition);        }    }