activiti5/6 系列之--Activiti 读取并转换BPMN2文件
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。
<?xml version="1.0" encoding="UTF-8"?> <!-- origin at X=0.0 Y=0.0 --> <bpmn2:definitions xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:bpmn2="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:dc="http://www.omg.org/spec/DD/20100524/DC" xmlns:di="http://www.omg.org/spec/DD/20100524/DI" xmlns:java="http://www.java.com/javaTypes" xmlns:tns="http://www.jboss.org/drools" xmlns="http://www.jboss.org/drools" xsi:schemaLocation="http://www.omg.org/spec/BPMN/20100524/MODEL BPMN20.xsd http://www.jboss.org/drools drools.xsd http://www.bpsim.org/schemas/1.0 bpsim.xsd" id="Definition" exporter="org.eclipse.bpmn2.modeler.core" exporterVersion="1.1.6.Final-v20160330-1631-B1306" expressionLanguage="http://www.mvel.org/2.0" targetNamespace="http://www.jboss.org/drools" typeLanguage="http://www.java.com/javaTypes"> <bpmn2:itemDefinition id="ItemDefinition_1" isCollection="false" structureRef="String"/> <bpmn2:itemDefinition id="ItemDefinition_2" isCollection="false" structureRef="Integer"/> <bpmn2:itemDefinition id="ItemDefinition_3" isCollection="false" structureRef="Boolean"/> <bpmn2:process id="net.hs.cw.bpme.ta.flow_index_mainflow" tns:packageName="net.hs.cw.bpme.ta" name="flow_index_mainflow" isExecutable="true" processType="Private"> <bpmn2:startEvent id="StartEvent_1" name="StartProcess"> <bpmn2:extensionElements> <tns:metaData name="elementname"> <tns:metaValue><![CDATA[StartProcess]]></tns:metaValue> </tns:metaData> </bpmn2:extensionElements> <bpmn2:outgoing>SequenceFlow_1</bpmn2:outgoing> </bpmn2:startEvent> <bpmn2:userTask id="UserTask_1" name="指数行情导入"> <bpmn2:extensionElements> <tns:metaData name="elementname"> <tns:metaValue><![CDATA[指数行情导入]]></tns:metaValue> </tns:metaData> </bpmn2:extensionElements> <bpmn2:incoming>SequenceFlow_1</bpmn2:incoming> <bpmn2:outgoing>SequenceFlow_2</bpmn2:outgoing> <bpmn2:ioSpecification id="InputOutputSpecification_2"> <bpmn2:dataInput id="DataInput_8" itemSubjectRef="ItemDefinition_1" name="TaskName"/> <bpmn2:dataInput id="DataInput_9" itemSubjectRef="ItemDefinition_2" name="Priority"/> <bpmn2:dataInput id="DataInput_10" itemSubjectRef="ItemDefinition_1" name="Comment"/> <bpmn2:dataInput id="DataInput_11" itemSubjectRef="ItemDefinition_1" name="GroupId"/> <bpmn2:dataInput id="DataInput_12" itemSubjectRef="ItemDefinition_3" name="Skippable"/> <bpmn2:dataInput id="DataInput_13" itemSubjectRef="ItemDefinition_1" name="Content"/> <bpmn2:dataInput id="DataInput_14" itemSubjectRef="ItemDefinition_1" name="Locale"/> <bpmn2:inputSet id="_InputSet_209"> <bpmn2:dataInputRefs>DataInput_8</bpmn2:dataInputRefs> <bpmn2:dataInputRefs>DataInput_9</bpmn2:dataInputRefs> <bpmn2:dataInputRefs>DataInput_10</bpmn2:dataInputRefs> <bpmn2:dataInputRefs>DataInput_11</bpmn2:dataInputRefs> <bpmn2:dataInputRefs>DataInput_12</bpmn2:dataInputRefs> <bpmn2:dataInputRefs>DataInput_13</bpmn2:dataInputRefs> <bpmn2:dataInputRefs>DataInput_14</bpmn2:dataInputRefs> </bpmn2:inputSet> <bpmn2:outputSet id="OutputSet_2" name="Output Set"/> </bpmn2:ioSpecification> <bpmn2:dataInputAssociation id="DataInputAssociation_8"> <bpmn2:targetRef>DataInput_8</bpmn2:targetRef> <bpmn2:assignment id="Assignment_8"> <bpmn2:from xsi:type="bpmn2:tFormalExpression" id="FormalExpression_15">ImpIndexFile</bpmn2:from> <bpmn2:to xsi:type="bpmn2:tFormalExpression" id="FormalExpression_16">DataInput_8</bpmn2:to> </bpmn2:assignment> </bpmn2:dataInputAssociation> <bpmn2:dataInputAssociation id="DataInputAssociation_9"> <bpmn2:targetRef>DataInput_9</bpmn2:targetRef> <bpmn2:assignment id="Assignment_9"> <bpmn2:from xsi:type="bpmn2:tFormalExpression" id="FormalExpression_17">1</bpmn2:from> <bpmn2:to xsi:type="bpmn2:tFormalExpression" id="FormalExpression_18">DataInput_9</bpmn2:to> </bpmn2:assignment> </bpmn2:dataInputAssociation> <bpmn2:dataInputAssociation id="DataInputAssociation_10"> <bpmn2:targetRef>DataInput_10</bpmn2:targetRef> </bpmn2:dataInputAssociation> <bpmn2:dataInputAssociation id="DataInputAssociation_11"> <bpmn2:targetRef>DataInput_11</bpmn2:targetRef> </bpmn2:dataInputAssociation> <bpmn2:dataInputAssociation id="DataInputAssociation_12"> <bpmn2:targetRef>DataInput_12</bpmn2:targetRef> <bpmn2:assignment id="Assignment_12"> <bpmn2:from xsi:type="bpmn2:tFormalExpression" id="FormalExpression_23">true</bpmn2:from> <bpmn2:to xsi:type="bpmn2:tFormalExpression" id="FormalExpression_24">DataInput_12</bpmn2:to> </bpmn2:assignment> </bpmn2:dataInputAssociation> <bpmn2:dataInputAssociation id="DataInputAssociation_13"> <bpmn2:targetRef>DataInput_13</bpmn2:targetRef> <bpmn2:assignment id="Assignment_13"> <bpmn2:from xsi:type="bpmn2:tFormalExpression" id="FormalExpression_25">{"executeMode":"manual"}</bpmn2:from> <bpmn2:to xsi:type="bpmn2:tFormalExpression" id="FormalExpression_26">DataInput_13</bpmn2:to> </bpmn2:assignment> </bpmn2:dataInputAssociation> <bpmn2:dataInputAssociation id="DataInputAssociation_14"> <bpmn2:targetRef>DataInput_14</bpmn2:targetRef> <bpmn2:assignment id="Assignment_14"> <bpmn2:from xsi:type="bpmn2:tFormalExpression" id="FormalExpression_27">en-UK</bpmn2:from> <bpmn2:to xsi:type="bpmn2:tFormalExpression" id="FormalExpression_28">DataInput_14</bpmn2:to> </bpmn2:assignment> </bpmn2:dataInputAssociation> </bpmn2:userTask> <bpmn2:sequenceFlow id="SequenceFlow_1" tns:priority="1" sourceRef="StartEvent_1" targetRef="UserTask_1"/> <bpmn2:endEvent id="EndEvent_1" name="End Event 1"> <bpmn2:extensionElements> <tns:metaData name="elementname"> <tns:metaValue><![CDATA[End Event 1]]></tns:metaValue> </tns:metaData> </bpmn2:extensionElements> <bpmn2:incoming>SequenceFlow_2</bpmn2:incoming> </bpmn2:endEvent> <bpmn2:sequenceFlow id="SequenceFlow_2" tns:priority="1" sourceRef="UserTask_1" targetRef="EndEvent_1"/> </bpmn2:process> <bpmndi:BPMNDiagram id="BPMNDiagram_1"> <bpmndi:BPMNPlane id="BPMNPlane_Process_1" bpmnElement="net.hs.cw.bpme.ta.flow_index_mainflow"> <bpmndi:BPMNShape id="BPMNShape_StartEvent_1" bpmnElement="StartEvent_1"> <dc:Bounds height="36.0" width="36.0" x="377.0" y="30.0"/> <bpmndi:BPMNLabel id="BPMNLabel_1"> <dc:Bounds height="15.0" width="71.0" x="360.0" y="66.0"/> </bpmndi:BPMNLabel> </bpmndi:BPMNShape> <bpmndi:BPMNShape id="BPMNShape_UserTask_1" bpmnElement="UserTask_1"> <dc:Bounds height="47.0" width="231.0" x="280.0" y="119.0"/> <bpmndi:BPMNLabel id="BPMNLabel_2"> <dc:Bounds height="15.0" width="72.0" x="359.0" y="135.0"/> </bpmndi:BPMNLabel> </bpmndi:BPMNShape> <bpmndi:BPMNShape id="BPMNShape_EndEvent_1" bpmnElement="EndEvent_1"> <dc:Bounds height="36.0" width="36.0" x="377.0" y="217.0"/> <bpmndi:BPMNLabel id="BPMNLabel_3"> <dc:Bounds height="15.0" width="65.0" x="363.0" y="253.0"/> </bpmndi:BPMNLabel> </bpmndi:BPMNShape> <bpmndi:BPMNEdge id="BPMNEdge_SequenceFlow_1" bpmnElement="SequenceFlow_1" sourceElement="BPMNShape_StartEvent_1" targetElement="BPMNShape_UserTask_1"> <di:waypoint xsi:type="dc:Point" x="395.0" y="66.0"/> <di:waypoint xsi:type="dc:Point" x="395.0" y="85.0"/> <di:waypoint xsi:type="dc:Point" x="395.0" y="119.0"/> <bpmndi:BPMNLabel id="BPMNLabel_4"/> </bpmndi:BPMNEdge> <bpmndi:BPMNEdge id="BPMNEdge_SequenceFlow_2" bpmnElement="SequenceFlow_2" sourceElement="BPMNShape_UserTask_1" targetElement="BPMNShape_EndEvent_1"> <di:waypoint xsi:type="dc:Point" x="395.0" y="166.0"/> <di:waypoint xsi:type="dc:Point" x="395.0" y="191.0"/> <di:waypoint xsi:type="dc:Point" x="395.0" y="191.0"/> <di:waypoint xsi:type="dc:Point" x="395.0" y="217.0"/> <bpmndi:BPMNLabel id="BPMNLabel_5"/> </bpmndi:BPMNEdge> </bpmndi:BPMNPlane> </bpmndi:BPMNDiagram> </bpmn2:definitions>
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<FlowElement> flowElementList = (List<FlowElement>) process.getFlowElements(); Map<String,FlowElement> flowElementMap = new HashMap(); for (FlowElement flowElement : flowElementList) { flowElementMap.put(flowElement.getId(),flowElement); } processDefinition.setFlowElementMap(flowElementMap); ProcessDataUtil.processDefinitionMap.put(process.getId(), processDefinition); } }
