工作流Activiti的学习总结（十）Activiti手动执行的应用(UserTask)
工作流模拟某公司请假流程情景如下：
1.开发人员请假流程，如果开发人员请假，如果请假天数小于3天，组长批准，人事批准即可请假。
2.如果请假大约三天，需要项目经理或者产品经理批准，并且项目总监批准
流程图：
流程配置：
<?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: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="UserExecuteTask" name="UserExecuteTask">
<startEvent id="startevent1" name="Start"></startEvent>
<parallelGateway id="parallelgateway1" name="多种请假方式"></parallelGateway>
<userTask id="servicetask1" name="项目经理同意" >
<extensionElements>
<activiti:taskListener event="complete" class="com.easyway.workflow.activiti.gateway.DeveloperManagerUserTaskListener"/>
</extensionElements>
</userTask>
<userTask id="servicetask2" name="产品经理同意">
<extensionElements>
<activiti:taskListener event="complete" class="com.easyway.workflow.activiti.gateway.ProductManagerUserTaskListener"/>
</extensionElements>
</userTask>
<userTask id="servicetask3" name="项目组长同意" >
<extensionElements>
<activiti:taskListener event="complete" class="com.easyway.workflow.activiti.gateway.TeamLeaderUserTaskListener"/>
</extensionElements>
</userTask>
<parallelGateway id="parallelgateway2" name="First Join"></parallelGateway>
<userTask id="servicetask4" name="项目总监同意" >
<extensionElements>
<activiti:taskListener event="complete" class="com.easyway.workflow.activiti.gateway.ProductBossUserTaskListener"/>
</extensionElements>
</userTask>
<parallelGateway id="parallelgateway3" name="人事判断"></parallelGateway>
<userTask id="servicetask5" name="人事部门同意" >
<extensionElements>
<activiti:taskListener event="complete" class="com.easyway.workflow.activiti.gateway.HumanResouceUserTaskListener"/>
</extensionElements>
</userTask>
<endEvent id="endevent1" name="End"></endEvent>
<sequenceFlow id="flow1" name="" sourceRef="startevent1" targetRef="parallelgateway1"></sequenceFlow>
<sequenceFlow id="flow2" name="" sourceRef="parallelgateway1" targetRef="servicetask1"></sequenceFlow>
<sequenceFlow id="flow3" name="" sourceRef="parallelgateway1" targetRef="servicetask2"></sequenceFlow>
<sequenceFlow id="flow4" name="" sourceRef="parallelgateway1" targetRef="servicetask3"></sequenceFlow>
<sequenceFlow id="flow5" name="" sourceRef="servicetask1" targetRef="parallelgateway2"></sequenceFlow>
<sequenceFlow id="flow6" name="" sourceRef="servicetask2" targetRef="parallelgateway2"></sequenceFlow>
<sequenceFlow id="flow7" name="" sourceRef="servicetask3" targetRef="parallelgateway3"></sequenceFlow>
<sequenceFlow id="flow8" name="" sourceRef="parallelgateway2" targetRef="servicetask4"></sequenceFlow>
<sequenceFlow id="flow9" name="" sourceRef="servicetask4" targetRef="parallelgateway3"></sequenceFlow>
<sequenceFlow id="flow10" name="" sourceRef="parallelgateway3" targetRef="servicetask5"></sequenceFlow>
<sequenceFlow id="flow11" name="" sourceRef="servicetask5" targetRef="endevent1"></sequenceFlow>
</process>
</definitions>
流程实现：
package com.easyway.workflow.activiti.gateway;
import java.util.logging.Logger;
/**
* execute方法的参数DelegateExecution execution可以在流程中各个结点之间传递流程变量。
* <activiti:taskListener>元素的event属性，它一共包含三种事件："create"、"assignment"、"complete"，分别表示结点执行处理逻辑的时机为：在处理类实例化时、在结点处理逻辑被指派时、在结点处理逻辑执行完成时，可以根据自己的需要进行指定。
*上述流程定义中，4个任务结点对应的处理类
*
*<activiti:taskListener>元素的event属性，它一共包含三种事件："create"、"assignment"、"complete"，分别表示结点执行处理逻辑的时机为：在处理类实例化时、在结点处理逻辑被指派时、在结点处理逻辑执行完成时，可以根据自己的需要进行指定。
*
*<userTask id="servicetask2" name="产品经理同意">
<extensionElements>
<activiti:taskListener event="complete" class="com.easyway.workflow.activiti.gateway.ProductManagerUserTaskListener"/>
</extensionElements>
</userTask>
*
*
* 项目经理审批过程
* @author longgangbai
*
*
* 2011-12-17 下午07:45:47
*/
public class DeveloperManagerUserTaskListener implements TaskListener
{
private final Logger log = Logger.getLogger(DeveloperManagerUserTaskListener.class.getName());
/* (non-Javadoc)
* @see org.activiti.engine.delegate.TaskListener#notify(org.activiti.engine.delegate.DelegateTask)
*/
@Override
public void notify(DelegateTask delegateTask) {
try {
Thread.sleep(10000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
log.info("variavles=" + delegateTask.getVariables());
delegateTask.setVariable("项目经理", "请假天数大约3天，同意请假。");
log.info("项目经理，请假天数大约3天，同意请假。.");
}
}
package com.easyway.workflow.activiti.gateway;
import java.util.logging.Logger;
/**
* execute方法的参数DelegateExecution execution可以在流程中各个结点之间传递流程变量。
*
*<activiti:taskListener>元素的event属性，它一共包含三种事件："create"、"assignment"、"complete"，分别表示结点执行处理逻辑的时机为：在处理类实例化时、在结点处理逻辑被指派时、在结点处理逻辑执行完成时，可以根据自己的需要进行指定。
* <userTask id="servicetask5" name="人事部门同意" >
<extensionElements>
<activiti:taskListener event="complete" class="com.easyway.workflow.activiti.gateway.HumanResouceUserTaskListener"/>
</extensionElements>
</userTask>
* 人事部门审批过程
* @author longgangbai
*
* 2011-12-17 下午07:45:47
*/
public class HumanResouceUserTaskListener implements TaskListener {
private final Logger log = Logger.getLogger(HumanResouceUserTaskListener.class.getName());
/* (non-Javadoc)
* @see org.activiti.engine.delegate.TaskListener#notify(org.activiti.engine.delegate.DelegateTask)
*/
@Override
public void notify(DelegateTask delegateTask) {
try {
Thread.sleep(10000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
log.info("variavles=" + delegateTask.getVariables());
delegateTask.setVariable("人事部门", "请假天数大约3天，同意请假。");
log.info("人事部门 ，请假天数大约3天，同意请假。");
}
}
package com.easyway.workflow.activiti.gateway;
import java.util.logging.Logger;
/**
* execute方法的参数DelegateExecution execution可以在流程中各个结点之间传递流程变量。
*
* <activiti:taskListener>元素的event属性，它一共包含三种事件："create"、"assignment"、"complete"，分别表示结点执行处理逻辑的时机为：在处理类实例化时、在结点处理逻辑被指派时、在结点处理逻辑执行完成时，可以根据自己的需要进行指定。
* 配置如下
* <userTask id="servicetask4" name="项目总监同意" >
<extensionElements>
<activiti:taskListener event="complete" class="com.easyway.workflow.activiti.gateway.ProductBossUserTaskListener"/>
</extensionElements>
</userTask>
*
*
* 项目总监审批过程
* @author longgangbai
*
* 2011-12-17 下午07:45:47
*/
public class ProductBossUserTaskListener implements TaskListener {
private final Logger log = Logger.getLogger(ProductBossUserTaskListener.class.getName());
/* (non-Javadoc)
* @see org.activiti.engine.delegate.TaskListener#notify(org.activiti.engine.delegate.DelegateTask)
*/
@Override
public void notify(DelegateTask execution) {
try {
Thread.sleep(10000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
log.info("variavles=" + execution.getVariables());
execution.setVariable("项目总监", "请假天数大约3天，同意请假。");
log.info("项目总监,请假天数大约3天，同意请假。");
}
}
package com.easyway.workflow.activiti.gateway;
import java.util.logging.Logger;
/**
* execute方法的参数DelegateExecution execution可以在流程中各个结点之间传递流程变量。
*
* <activiti:taskListener>元素的event属性，它一共包含三种事件："create"、"assignment"、"complete"，分别表示结点执行处理逻辑的时机为：在处理类实例化时、在结点处理逻辑被指派时、在结点处理逻辑执行完成时，可以根据自己的需要进行指定。
*
* 配置如下
* <userTask id="servicetask1" name="项目经理同意" >
<extensionElements>
<activiti:taskListener event="complete" class="com.easyway.workflow.activiti.gateway.DeveloperManagerUserTaskListener"/>
</extensionElements>
</userTask>
* 产品经理审批过程
* @author longgangbai
*
* 2011-12-17 下午07:45:47
*/
public class ProductManagerUserTaskListener implements TaskListener {
private final Logger log = Logger.getLogger(ProductManagerUserTaskListener.class.getName());
/* (non-Javadoc)
* @see org.activiti.engine.delegate.TaskListener#notify(org.activiti.engine.delegate.DelegateTask)
*/
@Override
public void notify(DelegateTask execution) {
try {
Thread.sleep(10000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
log.info("variavles=" + execution.getVariables());
execution.setVariable("产品经理", "请假天数大约3天，同意请假。");
log.info("产品经理,请假天数大约3天，同意请假。");
}
}
package com.easyway.workflow.activiti.gateway;
import java.util.logging.Logger;
/**
*
*
* <activiti:taskListener>元素的event属性，它一共包含三种事件："create"、"assignment"、"complete"，分别表示结点执行处理逻辑的时机为：在处理类实例化时、在结点处理逻辑被指派时、在结点处理逻辑执行完成时，可以根据自己的需要进行指定。
*
*
* 配置如下：
* <userTask id="servicetask3" name="项目组长同意" >
<extensionElements>
<activiti:taskListener event="complete" class="com.easyway.workflow.activiti.gateway.TeamLeaderUserTaskListener"/>
</extensionElements>
</userTask>
* 项目组长批准请假
* 模拟当开发人员请假小于3天，组长比准
* @author longgangbai
*
* 2011-12-17 上午09:07:37
*/
public class TeamLeaderUserTaskListener implements TaskListener {
private final Logger log = Logger.getLogger(TeamLeaderUserTaskListener.class.getName());
/* (non-Javadoc)
* @see org.activiti.engine.delegate.TaskListener#notify(org.activiti.engine.delegate.DelegateTask)
*/
@Override
public void notify(DelegateTask execution) {
try {
Thread.sleep(10000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
log.info("variavles=" + execution.getVariables());
execution.setVariable("项目组长", "请假天数小于3天，同意请假。");
log.info("项目组长,请假天数小于3天，同意请假。");
}
}
package com.easyway.workflow.activiti.gateway;
import junit.framework.TestCase;
/**
* 主要是在测试之前做一些初始化工作，主要包括流程引擎实例
* 的构建，及其流程提供的基本服务。
* 目的：让开发者熟悉工作流使用过程使用的几个步骤
* 1.加载相关的工作流全局配置文件activiti.cfg.xml配置文件信息
* 2.获取工作流相关的服务(RepositoryService，RuntimeService，
* TaskService，HistoryService，FormService，ManagementService，
* IdentityService等)
* 2.加载工作流文件*.bpmn20.xml信息
*
* 3.部署工作流
* 部署工作流由多种方式，在以后会相继讲解
*
* @author longgangbai
*
* 2011-12-17 下午07:48:59
*/
public abstract class AbstractTest extends TestCase {
private ProcessEngine processEngine;
protected String deploymentId;
protected RepositoryService repositoryService;
protected RuntimeService runtimeService;
protected TaskService taskService;
protected FormService formService;
protected HistoryService historyService;
protected IdentityService identityService;
protected ManagementService managementService;
/**
* 测试用例开始初始化工作
* 1.创建相关的工作流程对象ProcessEngine
* 2.创建相关的服务
* 3.
*/
@Override
protected void setUp() throws Exception {
super.setUp();
//由于ProcessEngine为线程安全性对象，整个项目可以共用一个
if(processEngine==null) {
//此处使用此种方法调用的activiti的配置文件为 classpath路径下的activiti.cfg.xml
//采用的H2的数据库
processEngine = ProcessEngines.getDefaultProcessEngine();
}
//获取工作流的各种服务信息
repositoryService = processEngine.getRepositoryService();
runtimeService = processEngine.getRuntimeService();
taskService = processEngine.getTaskService();
formService = processEngine.getFormService();
historyService = processEngine.getHistoryService();
identityService = processEngine.getIdentityService();
managementService = processEngine.getManagementService();
//调用扩展的初始化工作
initialize();
}
/**
* test销毁方法
*/
@Override
protected void tearDown() throws Exception {
super.tearDown();
destroy();
}
/**
* 便于子类的工作的初始化的扩展工作
*
*
* @throws Exception
*/
protected abstract void initialize() throws Exception;
/**
* 便于子类的工作的销毁的扩展工作
*
* @throws Exception
*/
protected abstract void destroy() throws Exception;
}
/**
package com.easyway.workflow.activiti.gateway;
import java.util.Date;
/**
* 测试实例如下
*
* @author longgangbai
*
* 2011-12-18 上午12:00:03
*/
public class ParallelGatewayTest extends AbstractTest {
private String deploymentId;
private Date start = null;
private Date end = null;
@Override
protected void initialize() throws Exception {
deploymentId = repositoryService.createDeployment()
.addClasspathResource("diagrams/UserExecuteTask.bpmn20.xml")
.deploy().getId();
}
@Override
protected void destroy() throws Exception {
repositoryService.deleteDeployment(deploymentId, true);
}
@Deployment
public void testUnbalancedForkJoin() {
//获取流程实例对象
ProcessInstance pi = runtimeService.startProcessInstanceByKey("UserExecuteTask");
//获取任务服务对象的查询
TaskQuery query = taskService.createTaskQuery().processInstanceId(pi.getId()).orderByTaskName().asc();
//获取所有的任务
List<Task> tasks = query.list();
assertEquals(3, tasks.size());
start = new Date();
for(Task task : tasks) {
//执行任务
taskService.complete(task.getId());
System.out.println("name =+"+task.getName());
end = new Date();
System.out.println("" + (end.getTime()-start.getTime()) + "ms.");
}
//查询任务
tasks = query.list();
assertEquals(1, tasks.size());
for(Task task : tasks) {
taskService.complete(task.getId());
System.out.println("name =+"+task.getName());
end = new Date();
System.out.println("" + (end.getTime()-start.getTime()) + "ms.");
}
end = new Date();
System.out.println("" + (end.getTime()-start.getTime()) + "ms.");
}
}
运行结果：
2011-12-18 13:15:29 org.activiti.engine.ProcessEngines initProcessEnginFromResource
信息: initializing process engine for resource jar:file:/C:/activiti-rest/activiti-cfg.jar!/activiti.cfg.xml
2011-12-18 13:15:32 org.activiti.engine.impl.ProcessEngineImpl <init>
信息: ProcessEngine default created
2011-12-18 13:15:32 org.activiti.engine.ProcessEngines initProcessEnginFromResource
信息: initialised process engine default
2011-12-18 13:15:32 org.activiti.engine.impl.jobexecutor.JobAcquisitionThread run
信息: JobAcquisitionThread starting to acquire jobs
2011-12-18 13:15:32 org.activiti.engine.impl.bpmn.deployer.BpmnDeployer deploy
信息: Processing resource diagrams/UserExecuteTask.bpmn20.xml
2011-12-18 13:15:33 org.activiti.engine.impl.bpmn.parser.BpmnParse parseDefinitionsAttributes
信息: XMLSchema currently not supported as typeLanguage
2011-12-18 13:15:33 org.activiti.engine.impl.bpmn.parser.BpmnParse parseDefinitionsAttributes
信息: XPath currently not supported as expressionLanguage
2011-12-18 13:15:43 com.easyway.workflow.activiti.gateway.ProductManagerUserTaskListener notify
信息: variavles={}
2011-12-18 13:15:43 com.easyway.workflow.activiti.gateway.ProductManagerUserTaskListener notify
信息: 产品经理,请假天数大约3天，同意请假。
name =+产品经理同意
10094ms.
2011-12-18 13:15:53 com.easyway.workflow.activiti.gateway.TeamLeaderUserTaskListener notify
信息: variavles={产品经理=请假天数大约3天，同意请假。}
2011-12-18 13:15:53 com.easyway.workflow.activiti.gateway.TeamLeaderUserTaskListener notify
信息: 项目组长,请假天数小于3天，同意请假。
name =+项目组长同意
20172ms.
2011-12-18 13:16:03 com.easyway.workflow.activiti.gateway.DeveloperManagerUserTaskListener notify
信息: variavles={项目组长=请假天数小于3天，同意请假。, 产品经理=请假天数大约3天，同意请假。}
2011-12-18 13:16:03 com.easyway.workflow.activiti.gateway.DeveloperManagerUserTaskListener notify
信息: 项目经理，请假天数大约3天，同意请假。.
name =+项目经理同意
30313ms.
2011-12-18 13:16:13 com.easyway.workflow.activiti.gateway.ProductBossUserTaskListener notify
信息: variavles={项目组长=请假天数小于3天，同意请假。, 项目经理=请假天数大约3天，同意请假。, 产品经理=请假天数大约3天，同意请假。}
2011-12-18 13:16:13 com.easyway.workflow.activiti.gateway.ProductBossUserTaskListener notify
信息: 项目总监,请假天数大约3天，同意请假。
name =+项目总监同意
40485ms.
40485ms.