public class TenMinuteTutorial {

  public static void main(String[] args) {

    // Create Activiti process engine

    ProcessEngine processEngine = ProcessEngineConfiguration

      .createStandaloneProcessEngineConfiguration()

      .buildProcessEngine();

    // Get Activiti services

    RepositoryService repositoryService = processEngine.getRepositoryService();

    RuntimeService runtimeService = processEngine.getRuntimeService();

    // Deploy the process definition

    repositoryService.createDeployment()

      .addClasspathResource("FinancialReportProcess.bpmn20.xml")

      .deploy();

    // Start a process instance

    String procId = runtimeService.startProcessInstanceByKey("financialReport").getId();

    // Get the first task

    TaskService taskService = processEngine.getTaskService();

    List<Task> tasks = taskService.createTaskQuery().taskCandidateGroup("accountancy").list();

    for (Task task : tasks) {

      System.out.println("Following task is available for accountancy group: " + task.getName());

      // claim it

      taskService.claim(task.getId(), "fozzie");

    }

    // Verify Fozzie can now retrieve the task

    tasks = taskService.createTaskQuery().taskAssignee("fozzie").list();

    for (Task task : tasks) {

      System.out.println("Task for fozzie: " + task.getName());

      // Complete the task

      taskService.complete(task.getId());

    }

    System.out.println("Number of tasks for fozzie: "

            + taskService.createTaskQuery().taskAssignee("fozzie").count());

    // Retrieve and claim the second task

    tasks = taskService.createTaskQuery().taskCandidateGroup("management").list();

    for (Task task : tasks) {

      System.out.println("Following task is available for accountancy group: " + task.getName());

      taskService.claim(task.getId(), "kermit");

    }

    // Completing the second task ends the process

    for (Task task : tasks) {

      taskService.complete(task.getId());

    }

    // verify that the process is actually finished

    HistoryService historyService = processEngine.getHistoryService();

    HistoricProcessInstance historicProcessInstance =

      historyService.createHistoricProcessInstanceQuery().processInstanceId(procId).singleResult();

    System.out.println("Process instance end time: " + historicProcessInstance.getEndTime());

  }

}