activiti学习--13：组任务分配方式3--使用类

<?xml version="1.0" encoding="UTF-8"?>
<definitions xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:activiti="http://activiti.org/bpmn" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:omgdc="http://www.omg.org/spec/DD/20100524/DC" xmlns:omgdi="http://www.omg.org/spec/DD/20100524/DI" typeLanguage="http://www.w3.org/2001/XMLSchema" expressionLanguage="http://www.w3.org/1999/XPath" targetNamespace="http://www.activiti.org/test">
<process id="task" name="taskProcess" isExecutable="true">
<startEvent id="startevent1" name="Start"></startEvent>
<userTask id="usertask1" name="审批">
<extensionElements>
<activiti:taskListener event="create" class="cn.fei.test95.TaskListenerImpl"></activiti:taskListener>
</extensionElements>
</userTask>
<sequenceFlow id="flow1" sourceRef="startevent1" targetRef="usertask1"></sequenceFlow>
<endEvent id="endevent1" name="End"></endEvent>
<sequenceFlow id="flow2" sourceRef="usertask1" targetRef="endevent1"></sequenceFlow>
</process>
<bpmndi:BPMNDiagram id="BPMNDiagram_task">
<bpmndi:BPMNPlane bpmnElement="task" id="BPMNPlane_task">
<bpmndi:BPMNShape bpmnElement="startevent1" id="BPMNShape_startevent1">
<omgdc:Bounds height="35.0" width="35.0" x="390.0" y="50.0"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="usertask1" id="BPMNShape_usertask1">
<omgdc:Bounds height="55.0" width="105.0" x="355.0" y="150.0"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="endevent1" id="BPMNShape_endevent1">
<omgdc:Bounds height="35.0" width="35.0" x="390.0" y="270.0"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNEdge bpmnElement="flow1" id="BPMNEdge_flow1">
<omgdi:waypoint x="407.0" y="85.0"></omgdi:waypoint>
<omgdi:waypoint x="407.0" y="150.0"></omgdi:waypoint>
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge bpmnElement="flow2" id="BPMNEdge_flow2">
<omgdi:waypoint x="407.0" y="205.0"></omgdi:waypoint>
<omgdi:waypoint x="407.0" y="270.0"></omgdi:waypoint>
</bpmndi:BPMNEdge>
</bpmndi:BPMNPlane>
</bpmndi:BPMNDiagram>
</definitions>

@SuppressWarnings("serial")
public class TaskListenerImpl implements TaskListener {

/**用来指定任务的办理人*/
@Override
public void notify(DelegateTask delegateTask) {
//指定个人任务的办理人，也可以指定组任务的办理人
//个人任务：通过类去查询数据库，将下一个任务的办理人查询获取，然后通过setAssignee()的方法指定任务的办理人
//组任务：
delegateTask.addCandidateUser("a");
delegateTask.addCandidateUser("b");
delegateTask.addCandidateUser("c");
delegateTask.addCandidateUser("d");
}

}

/**部署流程定义（从inputStream）*/
@Test
public void deploymentProcessDefinition_inputStream(){
InputStream inputStreamBpmn = this.getClass().getResourceAsStream("task.bpmn");
InputStream inputStreamPng = this.getClass().getResourceAsStream("task.png");
Deployment deployment = processEngine.getRepositoryService()//与流程定义和部署对象相关的Service
.createDeployment()//创建一个部署对象
.name("组任务")//添加部署的名称
.addInputStream("task.bpmn", inputStreamBpmn)//
.addInputStream("task.png", inputStreamPng)//
.deploy();//完成部署
System.out.println("部署ID："+deployment.getId());//
System.out.println("部署名称："+deployment.getName());//
//      输出：
//      部署ID：5901
//      部署名称：组任务
}

/**启动流程实例*/
@Test
public void startProcessInstance(){
//流程定义的key
String processDefinitionKey = "task";
ProcessInstance pi = processEngine.getRuntimeService()//与正在执行的流程实例和执行对象相关的Service
.startProcessInstanceByKey(processDefinitionKey);//使用流程定义的key启动流程实例，key对应helloworld.bpmn文件中id的属性值，使用key值启动，默认是按照最新版本的流程定义启动
//这里会执行TaskListenerImpl.java监听
System.out.println("流程实例ID:"+pi.getId());//流程实例ID
System.out.println("流程定义ID:"+pi.getProcessDefinitionId());//流程定义ID
//      输出：
//      流程实例ID:6001
//      流程定义ID:task:8:5904
}