public async Task <ValidateResult> ValidateUser(WorkflowResource resource, string actionName, string userKey)
{
ValidateResult result = new ValidateResult()
{
Result = false
};
List <WorkflowStep> steps = new List <WorkflowStep>();
//根据资源的当前状态和actionName获取所有步骤
await _workflowStepStore.QueryByResource(resource.Type, resource.Key, resource.ID, actionName, resource.Status,
async (step) =>
{
steps.Add(step);
await Task.FromResult(0);
}
);
StringBuilder strDescript = new StringBuilder();
if (steps.Count > 0)
{
foreach (var item in steps)
{
var itemResult = await item.ValidateUser(userKey);
if (itemResult.Result)
{
result.Result = true;
result.Description = null;
break;
}
else
{
strDescript.Append(itemResult.Description);
strDescript.Append("\n\r");
}
}
}
else
{
var fragment = new TextFragment()
{
Code = TextCodes.NotFoundWorkflowStepForAudit,
DefaultFormatting = "找不到工作流中需要审核的步骤;查询条件为资源类型:{0},资源关键字:{1},资源Id:{2},动作名称:{3},资源状态:{4}",
ReplaceParameters = new List <object>()
{
resource.Type, resource.Key, resource.ID, actionName, resource.Status
}
};
throw new UtilityException((int)Errors.NotFoundWorkflowStepForAudit
, fragment);
}
if (!result.Result)
{
result.Description = strDescript.ToString();
}
return(result);
}
/// <summary>
/// 获取指定的工作流资源
/// 如果存在，则直接返回
/// 如果不存在，则新建再返回
/// </summary>
/// <param name="type"></param>
/// <param name="key"></param>
/// <param name="initStatus"></param>
/// <returns></returns>
public static async Task <WorkflowResource> GetWorkflowResource(IWorkflowResourceRepository workflowResourceRepository, string type, string key, int initStatus)
{
var resource = await workflowResourceRepository.QueryByKey(type, key);
if (resource == null)
{
resource = new WorkflowResource()
{
Type = type,
Key = key,
InitStatus = initStatus,
Status = initStatus
};
try
{
await resource.Add();
}
catch (UtilityException ex)
{
if (ex.Code == (int)Errors.ExistWorkflowResourceKey)
{
resource = await workflowResourceRepository.QueryByKey(type, key);
}
else
{
throw;
}
}
}
return(resource);
}
public async Task AddStep(WorkflowResource resource, WorkflowStep step)
{
//判断当前步骤是否存在，若存在，则不重复创建
var isExistStep = await _workflowStepStore.IsExistStepByKey(resource.Type, resource.Key, resource.ID, resource.Status, step.ActionName, step.UserType, step.UserKey);
if (!isExistStep)
{
//自动关联资源
step.ResourceID = resource.ID;
//自动补上当前资源状态
step.Status = resource.Status;
//如果步骤的批次号为null，则需要查找该资源下status=step.Status，createtime最晚的步骤
//如果找到，则将找到的步骤的批次号赋值给step的批次号
//如果没找到，则生成一个随机批次号
var latestStep = await _workflowStepStore.QueryLatestByResource(resource.Type, resource.Key, resource.ID, step.Status);
if (latestStep != null)
{
step.SerialNo = latestStep.SerialNo;
}
else
{
step.SerialNo = Guid.NewGuid().ToString();
}
await _workflowStepStore.Add(resource.Type, resource.Key, step);
}
}
public async Task <bool> IsStepComplete(WorkflowResource resource, string actionName, int status)
{
bool result = true;
await _workflowStepStore.QueryByResource(resource.Type, resource.Key, resource.ID, actionName, status, async (step) =>
{
if (!step.Complete)
{
result = false;
}
await Task.FromResult(0);
});
return(result);
}
public async Task AddUserAction(WorkflowResource resource, string actionName, int status, string userKey, int result)
{
await using (var scope = new DBTransactionScope(System.Transactions.TransactionScopeOption.Required, new System.Transactions.TransactionOptions()
{
IsolationLevel = System.Transactions.IsolationLevel.ReadCommitted, Timeout = new TimeSpan(0, 1, 0)
}))
{
List <WorkflowStep> stepList = new List <WorkflowStep>();
//找到该资源下面的所有名称为actionName,状态为status的步骤
await _workflowStepStore.QueryByResource(resource.Type, resource.Key, resource.ID, actionName, status,
async (step) =>
{
if ((await step.ValidateUser(userKey)).Result)
{
stepList.Add(step);
}
}
);
//对所有符合条件的step增加用户动作
foreach (var item in stepList)
{
WorkflowStepUserAction action = new WorkflowStepUserAction()
{
StepID = item.ID,
Step = item,
Result = result,
UserKey = userKey
};
await _workflowStepUserActionStore.Add(resource.Type, resource.Key, action);
//判断是否该步骤下面的用户动作数量是否>=该步骤的用户数量，如果是，则需要修改该步骤的完成状态
var actionCount = await _workflowStepUserActionStore.QueryCountByStep(resource.Type, resource.Key, item.ID);
if (actionCount >= item.UserCount)
{
await _workflowStepStore.UpdateCompleteStatus(resource.Type, resource.Key, resource.ID, item.ID, true);
}
}
scope.Complete();
}
}
public async Task GetUserAction(WorkflowResource resource, Func <WorkflowStepUserAction, Task> callback)
{
await _workflowStepUserActionStore.QueryByResource(resource.Type, resource.Key, resource.ID, callback);
}
public async Task GetStepByCurrentStatus(WorkflowResource resource, Func <WorkflowStep, Task> callback)
{
await _workflowStepStore.QueryByResource(resource.Type, resource.Key, resource.ID, resource.Status, callback);
}
public async Task UpdateStepCompleteStatus(WorkflowResource resource, string actionName, int status, bool isComplete, Func <WorkflowStepUserAction, Task> returnCallback)
{
await _workflowStepStore.UpdateCompleteStatus(resource.Type, resource.Key, resource.ID, actionName, status, isComplete);
}
public async Task UpdateStatus(WorkflowResource resource, int status)
{
await _workflowResourceStore.UpdateStatus(resource.Type, resource.Key, resource.ID, status);
resource.Status = status;
}
public async Task ReturnToStatus(WorkflowResource resource, int status, Func <WorkflowStepUserAction, Task> returnCallback)
{
using (var scope = new DBTransactionScope(System.Transactions.TransactionScopeOption.Required, new System.Transactions.TransactionOptions()
{
IsolationLevel = System.Transactions.IsolationLevel.ReadCommitted, Timeout = new TimeSpan(0, 1, 0)
}))
{
////找到资源下指定状态，创建时间最晚的步骤
var returnStep = await _workflowStepStore.QueryByStatus(resource.Type, resource.Key, resource.ID, status);
if (returnStep != null)
{
//获取创建时间大于等于returnStep的CreateTime and SerialNo不等于returnStep的SerialNo的所有步骤
//这些步骤需要被移除
List <WorkflowStep> removeSteps = new List <WorkflowStep>();
await _workflowStepStore.QueryByCreateTime(resource.Type, resource.Key, resource.ID, returnStep.SerialNo, returnStep.CreateTime,
async (step) =>
{
removeSteps.Add(step);
await Task.FromResult(0);
}
);
foreach (var item in removeSteps)
{
//每一个需要移除的步骤，都需要获取关联的用户动作，为这些用户动作执行回调
await _workflowStepUserActionStore.QueryByStep(resource.Type, resource.Key, item.ID, returnCallback);
//删除步骤
await _workflowStepStore.Delete(resource.Type, resource.Key, resource.ID, item.ID);
}
//找到所有SerialNo=preStep.SerialNo的步骤，删除它们下面的所有用户动作，
//对这些动作执行回调
//再把它们的complete全部改成false
await _workflowStepStore.QueryByResource(resource.Type, resource.Key, resource.ID, returnStep.SerialNo,
async (step) =>
{
await _workflowStepUserActionStore.QueryByStep(resource.Type, resource.Key, step.ID,
async(action) =>
{
await returnCallback(action);
}
);
await _workflowStepUserActionStore.Delete(resource.Type, resource.Key, step.ID);
await _workflowStepStore.UpdateCompleteStatus(resource.Type, resource.Key, resource.ID, step.ID, false);
}
);
//修改资源状态为preStep的状态
await _workflowResourceStore.UpdateStatus(resource.Type, resource.Key, resource.ID, returnStep.Status);
}
else
{
//需要退回到最初状态，获取资源下所有步骤，为步骤下面每个用户动作调用回调，
//删除所有的步骤，修改资源状态为初始状态
List <WorkflowStep> removeSteps = new List <WorkflowStep>();
await _workflowStepStore.QueryByResource(resource.Type, resource.Key, resource.ID, async (step) =>
{
removeSteps.Add(step);
await Task.FromResult(0);
});
foreach (var item in removeSteps)
{
//每一个需要移除的步骤，都需要获取关联的用户动作，为这些用户动作执行回调
await _workflowStepUserActionStore.QueryByStep(resource.Type, resource.Key, item.ID, returnCallback);
//删除步骤
await _workflowStepStore.Delete(resource.Type, resource.Key, resource.ID, item.ID);
}
//修改资源状态为preStep的状态
await _workflowResourceStore.UpdateStatus(resource.Type, resource.Key, resource.ID, resource.InitStatus);
}
scope.Complete();
}
}
public async Task GetUserAction(WorkflowResource resource, string actionName, int status, Func <WorkflowStepUserAction, Task> callback)
{
await _workflowStepUserActionStore.QueryByResource(resource.Type, resource.Key, resource.ID, actionName, status, callback);
}
public async Task DeleteStep(WorkflowResource resource, int status, string serilaNo, string excludeActionName)
{
await _workflowStepStore.Delete(resource.Type, resource.Key, resource.ID, status, serilaNo, excludeActionName);
}
public async Task DeleteStep(WorkflowResource resource, string actionName, int status)
{
await _workflowStepStore.Delete(resource.Type, resource.Key, resource.ID, actionName, status);
}
public async Task Delete(WorkflowResource resource)
{
await _workflowResourceStore.Delete(resource.Type, resource.Key, resource.ID);
}
public async Task Add(WorkflowResource resource)
{
await _workflowResourceStore.Add(resource);
}