【第十篇】Flowable中的候选人组

   /**
     * 维护用户
     */
    @Test
    public void createUser(){
        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
        // 通过 IdentityService 完成相关的用户和组的管理
        IdentityService identityService = processEngine.getIdentityService();
        User user = identityService.newUser("田佳");
        user.setFirstName("田");
        user.setLastName("jia");
        user.setEmail("tianjia@qq.com");
        identityService.saveUser(user);
    }

    /**
     * 创建用户组
     */
    @Test
    public void createGroup(){
        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
        IdentityService identityService = processEngine.getIdentityService();
        // 创建Group对象并指定相关的信息
        Group group = identityService.newGroup("group2");
        group.setName("开发部");
        group.setType("type1");
        // 创建Group对应的表结构数据
        identityService.saveGroup(group);

    }

    /**
     * 将用户分配给对应的Group
     */
    @Test
    public void userGroup(){
        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
        IdentityService identityService = processEngine.getIdentityService();
        // 根据组的编号找到对应的Group对象
        Group group = identityService.createGroupQuery().groupId("group1").singleResult();
        List<User> list = identityService.createUserQuery().list();
        for (User user : list) {
            // 将用户分配给对应的组
            identityService.createMembership(user.getId(),group.getId());
        }
    }

/**
     * 部署流程
     */
    @Test
    public void deploy(){
        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
        RepositoryService repositoryService = processEngine.getRepositoryService();

        Deployment deploy = repositoryService.createDeployment()
                .addClasspathResource("请假流程-候选人组.bpmn20.xml")
                .name("请求流程-候选人")
                .deploy();
        System.out.println("deploy.getId() = " + deploy.getId());
        System.out.println(deploy.getName());
    }

    /**
     * 启动流程实例
     */
    @Test
    public void runProcess(){
        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
        IdentityService identityService = processEngine.getIdentityService();
        Group group = identityService.createGroupQuery().groupId("group1").singleResult();
        RuntimeService runtimeService = processEngine.getRuntimeService();
        // 给流程定义中的UEL表达式赋值
        Map<String,Object> variables = new HashMap<>();
        // variables.put("g1","group1");
        variables.put("g1",group.getId()); // 给流程定义中的UEL表达式赋值
        runtimeService.startProcessInstanceById("holiday-group:1:17504",variables);
    }

/**
     * 根据登录的用户查询对应的可以拾取的任务
     *
     */
    @Test
    public void queryTaskCandidateGroup(){
        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
        // 根据当前登录的用户找到对应的组
        IdentityService identityService = processEngine.getIdentityService();
        // 当前用户所在的组
        Group group = identityService.createGroupQuery().groupMember("邓彪").singleResult();

        TaskService taskService = processEngine.getTaskService();
        List<Task> list = taskService.createTaskQuery()
                //.processInstanceId("2501")
                .processDefinitionId("holiday-group:1:17504")
                .taskCandidateGroup(group.getId())
                .list();
        for (Task task : list) {
            System.out.println("task.getId() = " + task.getId());
            System.out.println("task.getName() = " + task.getName());
        }
    }

    /**
     * 拾取任务
     *    一个候选人拾取了这个任务之后其他的用户就没有办法拾取这个任务了
     *    所以如果一个用户拾取了任务之后又不想处理了，那么可以退还
     */
    @Test
    public void claimTaskCandidate(){
        String userId = "田佳";
        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
        // 根据当前登录的用户找到对应的组
        IdentityService identityService = processEngine.getIdentityService();
        // 当前用户所在的组
        Group group = identityService.createGroupQuery().groupMember(userId).singleResult();
        TaskService taskService = processEngine.getTaskService();
        Task task = taskService.createTaskQuery()
                //.processInstanceId("2501")
                .processDefinitionId("holiday-group:1:17504")
                .taskCandidateGroup(group.getId())
                .singleResult();
        if(task != null) {
            // 任务拾取
            taskService.claim(task.getId(),userId);
            System.out.println("任务拾取成功");
        }
    }  
   /**
     * 完成任务
     */
    @Test
    public void completeTask(){
        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
        TaskService taskService = processEngine.getTaskService();
        Task task = taskService.createTaskQuery()
                //.processInstanceId("2501")
                .processDefinitionId("holiday-group:1:17504")
                .taskAssignee("邓彪")
                .singleResult();
        if(task != null){
            // 完成任务
            taskService.complete(task.getId());
            System.out.println("完成Task");
        }
    }