public WorkflowInstance(IWorkflowTemplate workflowTemplate, IForm form, WorkflowExecutionContext context)
{
WorkflowInstanceId = CreateWorkflowInstanceId();
_workflowTemplate = workflowTemplate;
_form = form;
_executionContext = context;
_isNew = true;
Status = WorkflowInstanceStatus.New;
}
public override IWorkflowInstance NewWorkflowInstance(IWorkflowTemplate template, string formType, string formId)
{
var instance = WorkflowInstanceFactory.Create(template, new Form(formType, formId), CurrentUser,
new WorkflowExecutionContext()
{
Approver = CurrentUser
});
return(instance);
}
/// <summary>
/// 验证流程模板
/// </summary>
/// <param name="workflowTemplate"></param>
/// <returns></returns>
public static void Validate(IWorkflowTemplate workflowTemplate)
{
//判断首尾节点唯一
if (workflowTemplate.Activities.Count(p => p.BeginActivity) > 1 ||
workflowTemplate.Activities.Count(q => q.FinalActivity) > 1)
{
throw new IllegalWorkflowTemplateException();
}
//TODO:确保无孤立节点
}
/// <summary>
/// 创建工作流实例的工厂方法(新流程)
/// </summary>
/// <param name="template"></param>
/// <param name="form"></param>
/// <param name="owner"></param>
/// <param name="context"></param>
/// <returns></returns>
public static IWorkflowInstance Create(IWorkflowTemplate template, IForm form, IApprover owner, WorkflowExecutionContext context)
{
//新建第一个activity实例，流程owner进行提交
var instance = new WorkflowInstance(template, form, owner, context);
var activityInstance = new ActivityInstance
{
ActivityTemplate = template.Activities.First(),
CreatedOn = DateTime.Now,
LastUpdatedOn = DateTime.Now,
};
instance.Current = activityInstance;
return(instance);
}
public abstract IWorkflowInstance NewWorkflowInstance(IWorkflowTemplate template, string formType, string formId);
public WorkflowInstance(IWorkflowTemplate workflowTemplate, IForm form, IApprover owner, WorkflowExecutionContext context)
: this(workflowTemplate, form, context)
{
_owner = owner;
}
/// <summary>
/// 创建工作流实例的工厂方法
/// </summary>
/// <param name="template"></param>
/// <param name="form"></param>
/// <param name="context"></param>
/// <returns></returns>
public static IWorkflowInstance Create(IWorkflowTemplate template, IForm form, WorkflowExecutionContext context)
{
var instance = new WorkflowInstance(template, form, context);
return(instance);
}
