/// <summary>
/// 侦听接收通知处理
/// </summary>
/// <param name="execution"></param>
public void Notify(IExecutionEntity execution)
{
if (execution.CurrentFlowElement is UserTask userTask && userTask.HasMultiInstanceLoopCharacteristics())
{
var varName = userTask.LoopCharacteristics.GetCollectionVarName();
if (execution.GetVariable(varName) == null)
{
List <IUserInfo> users = new List <IUserInfo>();
string getUserPolicy = userTask.GetUsersPolicy();
if (string.IsNullOrWhiteSpace(getUserPolicy) == false)
{
if (EXPR_PATTERN.IsMatch(getUserPolicy))
{
getUserPolicy = EXPR_PATTERN.Replace(getUserPolicy, (m) =>
{
var value = m.Groups[1].Value;
var variables = execution.Variables;
object roles = ExpressionManager.GetValue(variables, value, variables);
return(roles.ToString());
});
}
QueryBookmark[] actors = JsonConvert.DeserializeObject <QueryBookmark[]>(getUserPolicy);
IGetBookmarkRuleProvider ruleProvider = ProcessEngineServiceProvider.Resolve <IGetBookmarkRuleProvider>();
foreach (QueryBookmark query in actors)
{
IGetBookmarkRule rule = ruleProvider.CreateBookmarkRule(query.RuleType.ToString());
rule.Execution = execution;
rule.Condition = query;
var us = Context.ProcessEngineConfiguration.CommandExecutor.Execute(rule);
users.AddRange(us);
}
}
if (users.Count == 0)
{
users.Add(Authentication.AuthenticatedUser);
logger.LogWarning($"调用查询人员服务失败,分组没有人,重新指到当前提交人,Duty={getUserPolicy}");
//throw new NoneCountersignUsersException(execution.CurrentFlowElement.Name);
}
execution.SetVariable(varName, users.Count == 0 ? new string[] { "" } : users.Select(x => x.Id).Distinct().ToArray());
}
}
}
/// <summary>
/// 进行表达式运算
/// </summary>
/// <param name="contextObject"></param>
/// <param name="expstr"></param>
/// <param name="variables"></param>
/// <returns></returns>
private object GetValue(ExpandoObject contextObject, string expstr, IDictionary <string, object> variables)
{
if (string.IsNullOrWhiteSpace(expstr))
{
return(null);
}
//存在动态参数，进行替换
if (EXPR_PATTERN.IsMatch(expstr))
{
string vexpre = GetExpression(expstr);
return(ExpressionManager.GetValue(contextObject, vexpre, variables));
}
return(expstr);
}
public override bool IsCondition(RequestContext context)
{
try
{
if (!string.IsNullOrWhiteSpace(Test))
{
var obj = ExpressionManager.GetValue(context.Request, Test, context.RequestParameters);
if (bool.TryParse(obj?.ToString(), out var ret) == false)
{
return(false);
}
return(ret);
}
else
{
var reqVal = GetPropertyValue(context);
if (reqVal == null)
{
return(false);
}
string reqValStr = string.Empty;
if (reqVal is Enum)
{
reqValStr = reqVal.GetHashCode().ToString();
}
else if (reqVal is bool)
{
bool.TryParse(reqVal.ToString(), out bool ret);
return(ret);
}
else
{
reqValStr = reqVal.ToString();
}
return(reqValStr.Equals(CompareValue));
}
}
catch (Exception e)
{
throw new BuildSqlException($"构造SQL语句发生错误({LineInfo.LineNumber},{LineInfo.LinePosition}):{e.Message}", e);
}
}
protected virtual object GetPropertyValue(RequestContext context)
{
var reqParams = context.RequestParameters;
if (reqParams == null)
{
return(null);
}
if (Property == null)
{
throw new PropertyArgumentNullException($"Tag property null {ToString()}");
}
if (!string.IsNullOrWhiteSpace(Property) && context.Request != null)
{
return(ExpressionManager.GetValue(context.Request, Property, context.RequestParameters));
}
reqParams.TryGetValue(Property, out object propVal);
return(propVal);
}