jbpm4 timer 定时器事件

最近学习了jbpm4.X的定时器事件，下面是一个简单的测试，上一篇简单介绍了jbpm4初始化数据库，这次可以从数据库中查看详细的流程执行信息。
流程定义文件：TimerEventTest.jpdl.xml

<?xml version="1.0" encoding="UTF-8"?>

<process name="TimerEventTest" xmlns="http://jbpm.org/4.4/jpdl">
   <start g="44,111,48,48" name="start1">
      <transition g="-50,-18" name="to guardedWait" to="guardedWait"/>
   </start>
   <state g="181,108,140,52" name="guardedWait">
   	<on event="timeout">
      <timer duedate="1 minutes"/> 
      <event-listener class="com.lujinyong.timer.event.Escalate"/> 
    </on>  
      <transition g="-34,-20" name="go on" to="next step"/>
   </state>
   <state g="442,106,92,52" name="next step"/>
</process>

定时器到到期时间触发的事件：Escalate.java

package com.lujinyong.timer.event;

import org.jbpm.api.listener.EventListener;
import org.jbpm.api.listener.EventListenerExecution;

/**
 * 监听事件
 */
public class Escalate implements EventListener {

	private static final long serialVersionUID = 1L;

	public void notify(EventListenerExecution execution) {
		//触发监听事件，会将变量插入流程变量表（jbpm4_variable）中
		execution.setVariable("escalation", Boolean.TRUE);
		String mag = "超时了，我要发提醒信息！";
		execution.setVariable("mag", mag);
	}
}

测试类TestTimerEvent2.java

package com.lujinyong.timer.event;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Set;

import org.jbpm.api.Configuration;
import org.jbpm.api.Execution;
import org.jbpm.api.ExecutionService;
import org.jbpm.api.ManagementService;
import org.jbpm.api.ProcessEngine;
import org.jbpm.api.ProcessInstance;
import org.jbpm.api.job.Job;
import org.junit.Test;

public class TestTimerEvent2 {
	/**
	 * 
	 * @Description: 部署流程
	 * @Auther: lujinyong
	 * @Date: 2013-6-24 下午03:41:01
	 */
	@Test
	public void testDeploy1() {
		// 1.get processEngine
		ProcessEngine processEngine = Configuration.getProcessEngine();
		//如果不用图片可以将：.addResourceFromClasspath(	"com/lujinyong/timer/event/TimerEventTest.png")去掉
		processEngine
				.getRepositoryService()
				.createDeployment()
				.addResourceFromClasspath(
						"com/lujinyong/timer/event/TimerEventTest.jpdl.xml")
				.addResourceFromClasspath(
						"com/lujinyong/timer/event/TimerEventTest.png").deploy();
	}
	/**
	 * 
	 * @Description: 测试发起流程,注意：名称发起流程后将发起的方法注释起来，在下面的测试中才不会多出发起的记录
	 * @Auther: lujinyong
	 * @Date: 2013-6-24 下午03:50:31
	 */
	@Test
	public void testStart() {
		ProcessEngine processEngine = Configuration.getProcessEngine();
		// 根据流程定义id发起流程
//		String processDefinitionId = "TimerTransitionTest-2";
//		Execution processInstance = processEngine.getExecutionService()
//				.startProcessInstanceById(processDefinitionId);
		// 根据流程定义key发起流程
//		String processDefinitionKey = "TimerEventTest";
//		ExecutionService executionService = processEngine.getExecutionService();
//		ManagementService managementService = processEngine.getManagementService();
//		Execution processInstance = executionService.startProcessInstanceByKey(processDefinitionKey);
		
//		Execution processInstance = executionService.createProcessInstanceQuery().processInstanceKey(processDefinitionKey).list().get(0);
//		System.out.println("piID:" + processInstance.getId());
//		System.out.println("pdKey:" + processInstance.getKey());
//		System.out.println("pdid:" + processInstance.getProcessDefinitionId());
//		System.out.println("pdState:" + processInstance.getState());
	}
	/**
	 * 
	 * @Description: 测试超时的情况
	 * 如果流程没有在开始以后 10 分钟内执行 singal， 
	 * 事件 timeout 就会被触发 事件监听器com.lujinyong.timer.event.Escalate 将被触发
	 * 即在流程变量表中会插入监听类的一条记录
	 * @Auther: lujinyong
	 * @Date: 2013-6-24 下午05:38:35
	 */
	@Test
	public void testTimerEventTimerFires() {
		ProcessEngine processEngine = Configuration.getProcessEngine();
		ExecutionService executionService = processEngine.getExecutionService();
		ManagementService managementService = processEngine.getManagementService();
	    ProcessInstance processInstance = executionService.startProcessInstanceByKey("TimerEventTest");
	    //查询定时器
	    Job job = managementService.createJobQuery()
	      .processInstanceId(processInstance.getId())
	      .uniqueResult();
	    //假设定时器被触发了，通过编码执行定时器进行模拟
	    managementService.executeJob(job.getId());

	    processInstance = executionService.findProcessInstanceById(processInstance.getId());

	    Set<String> expectedActivityNames = Collections.singleton("guardedWait");
	    assertEquals(expectedActivityNames, processInstance.findActiveActivityNames());
	    
	    assertEquals(Boolean.TRUE, executionService.getVariable(processInstance.getId(), "escalation"));
	    System.out.println(">>>>>>>>>>>>>>>>>>"+executionService.getVariable(processInstance.getId(), "mag"));
	  }
	/**
	 * 
	 * @Description: 测试未超时的情况
	 * 如果 guardedWait 活动在 10 分钟内被结束，
	 * 然后定时器就会被取消， Escalate 事件监听器也不会执行
	 * 即流程变量表中不会插入监听类的记录
	 * @Auther: lujinyong
	 * @Date: 2013-6-24 下午05:39:45
	 */
//	@Test
//	public void testTimerEventContinueBeforeTimerFires() {
//		ProcessEngine processEngine = Configuration.getProcessEngine();
//		ExecutionService executionService = processEngine.getExecutionService();
//		ManagementService managementService = processEngine.getManagementService();
//		ProcessInstance processInstance = executionService.startProcessInstanceByKey("TimerEventTest");
//	    
//	    String executionId = processInstance.findActiveExecutionIn("guardedWait").getId();
//
//	    executionService.signalExecutionById(executionId, "go on");
//	    
//	    processInstance = executionService.findProcessInstanceById(processInstance.getId());
//	    
//	    assertTrue(processInstance.isActive("next step"));
//
//	    List<Job> jobs = managementService.createJobQuery()
//	      .processInstanceId(processInstance.getId())
//	      .list();
//	    
//	    assertEquals(new ArrayList<Job>(), new ArrayList<Job>(jobs));
//	  }
	
}