/*
  * 根据条件选定办理人
  * @param conditions
  * @param creator
  * @param _wf_transactor
  * @return
  */
 public static Set<String> processCondition(
     Map<TaskTransactorCondition, String> conditions,
     OpenExecution execution,
     Map<String, String> param) {
   Long companyId = ContextUtils.getCompanyId();
   if (companyId == null) {
     Object compIdStr = execution.getVariable(CommonStrings.COMPANY_ID);
     if (compIdStr != null) {
       companyId = Long.parseLong(compIdStr.toString());
     }
   }
   String userCondition = conditions.get(TaskTransactorCondition.USER_CONDITION);
   if (userCondition == null) {
     throw new RuntimeException("办理人设置中,解析条件时,设置的条件不能为null");
   }
   // 根据条件获取办理人
   Set<String> candidates = new HashSet<String>();
   if ("${documentCreator}".equals(userCondition)) {
     // 文档创建人
     candidates.add(param.get(DOCUMENT_CREATOR));
   } else if ("${previousTransactorAssignment}".equals(userCondition)) {
     // 上一环节办理人指定
     candidates.add(CommonStrings.TRANSACTOR_ASSIGNMENT);
   } else if (userCondition.startsWith("${field[")) {
     // 文档字段中指定//${field[name_zn[name_en]]}
     int start = userCondition.lastIndexOf("[");
     int end = userCondition.indexOf("]");
     String fieldName = userCondition.substring(start + 1, end);
     // 根据流程实例ID获取流程表单中指定字段的值
     WorkflowInstanceManager manager =
         (WorkflowInstanceManager) ContextUtils.getBean("workflowInstanceManager");
     String fieldValues = manager.getFieldValueInForm(param.get(PROCESS_INSTANCEID), fieldName);
     if (fieldValues == null) {
       throw new RuntimeException("办理人设置中,文档字段中指定时,该字段的值不能为null");
     }
     for (String fieldValue : fieldValues.split(",")) {
       fieldValue = fieldValue.trim();
       if (StringUtils.isNotEmpty(fieldValue)) {
         if ("ALLCOMPANYID".equals(fieldValue)) { // 所有人员(不包含无部门人员)
           List<String> loginNames = ApiFactory.getAcsService().getLoginNamesByCompany(companyId);
           candidates.addAll(loginNames);
         } else if ("ALLWORKGROUP".equals(fieldValue)) { // 所有工作组中的人员
           List<String> loginNames =
               ApiFactory.getAcsService().getLoginNamesByWorkgroup(companyId);
           candidates.addAll(loginNames);
         } else {
           candidates.add(fieldValue);
         }
       }
     }
   } else {
     if (execution == null) {
       throw new RuntimeException("办理人设置中,解析条件时,execution不能为null");
     }
     FormViewManager formManager = (FormViewManager) ContextUtils.getBean("formViewManager");
     WorkflowInstanceManager workflowInstanceManager =
         (WorkflowInstanceManager) ContextUtils.getBean("workflowInstanceManager");
     WorkflowInstance wi =
         workflowInstanceManager.getWorkflowInstance(param.get(PROCESS_INSTANCEID), companyId);
     if (wi == null) {
       throw new RuntimeException("办理人设置中,解析条件时,流程实例不能为null");
     }
     FormView form = formManager.getFormView(wi.getFormId());
     UserParseCalculator upc = new UserParseCalculator();
     upc.setDataId(wi.getDataId());
     upc.setFormView(form);
     upc.setDocumentCreator(param.get(DOCUMENT_CREATOR));
     upc.setPreviousTransactor(param.get(PREVIOUS_TRANSACTOR));
     upc.setCurrentTransactor(param.get(CURRENT_TRANSACTOR));
     upc.setProcessAdmin(param.get(PROCESS_ADMIN));
     candidates.addAll(
         processAdditionalCondition(
             conditions,
             upc.getUsers(userCondition, wi.getSystemId(), wi.getCompanyId()),
             param.get(DOCUMENT_CREATOR),
             execution));
   }
   return candidates;
 }
  /*
   * 根据附加条件过滤办理人
   * @param conditions
   * @param candidates
   * @param creator
   * @param _wf_transactor
   * @return
   */
  private static Set<String> processAdditionalCondition(
      Map<TaskTransactorCondition, String> conditions,
      Set<String> candidates,
      String creator,
      OpenExecution execution) {

    Set<String> results = new HashSet<String>();
    String selectOne = conditions.get(TaskTransactorCondition.SELECT_ONE_FROM_MULTIPLE);
    String onlyInCreatorDept = conditions.get(TaskTransactorCondition.ONLY_IN_CREATOR_DEPARTMENT);
    String withCreatorDept = conditions.get(TaskTransactorCondition.WITH_CREATOR_DEPARTMENT);
    if ("true".equals(onlyInCreatorDept) || "true".equals(withCreatorDept)) {
      List<String[]> usersInSameDept =
          AcsApi.getUsersInSameDept(ContextUtils.getCompanyId(), creator);

      // 只能为创建人部门(交集)
      if ("true".equals(onlyInCreatorDept)) {
        for (String[] user1 : usersInSameDept) {
          if (candidates.contains(user1[1])) {
            results.add(user1[1]);
          }
        }
      } else {
        results.addAll(candidates);
      }
      // 创建人部门参与(并集)
      if ("true".equals(withCreatorDept)) {
        for (String[] user1 : usersInSameDept) {
          results.add(user1[1]);
        }
      }
    } else {
      results.addAll(candidates);
    }
    Set<String> latest = new HashSet<String>();
    // 需要唯一指定办理人
    if ("true".equals(selectOne)) {
      //			  <select-type>autoType</select-type>
      //	          <select-bean>workflowInstanceManager</select-bean>
      // 只有一个候选人
      if (conditions
          .get(TaskTransactorCondition.SELECT_TYPE)
          .equals(TaskTransactorCondition.SELECT_TYPE_CUSTOM)) {
        //					if(results.size() == 1){
        //						latest.add(results.iterator().next());
        //					}else if(results.size() > 1){
        latest.add(CommonStrings.TRANSACTOR_SINGLE);
        // 将候选人加入到execution变量中
        execution.createVariable(CommonStrings.TRANSACTOR_SINGLE_CANDIDATES, results);
        //					}
      } else {
        WorkflowInstanceManager workflowInstanceManager =
            (WorkflowInstanceManager) ContextUtils.getBean("workflowInstanceManager");
        WorkflowInstance instance =
            workflowInstanceManager.getWorkflowInstance(
                execution.getProcessInstance().getProcessInstance().getId());
        if (instance == null) {
          throw new RuntimeException("办理人设置中,解析附加条件时,流程实例不能为null");
        }
        String selectorBeanName = conditions.get(TaskTransactorCondition.SELECT_BEAN);
        ActivityExecution activityExecution = (ActivityExecution) execution;
        String activityName = activityExecution.getActivityName();
        if (StringUtils.isEmpty(selectorBeanName))
          throw new WorkflowException("环节:" + activityName + "没有指定自动选择办理人的bean名");
        SingleTransactorSelector selector =
            (SingleTransactorSelector) ContextUtils.getBean(selectorBeanName);
        boolean moreTransactor =
            DefinitionXmlParse.hasMoreTransactor(instance.getProcessDefinitionId(), activityName);
        Set<String> result = selector.filter(instance.getDataId(), results, moreTransactor);
        Iterator<String> it = result.iterator();
        while (it.hasNext()) {
          latest.add(it.next());
        }
      }
    } else {
      for (String user : results) {
        latest.add(user);
      }
    }
    return latest;
  }