/// <summary>
/// 取多个函数的值
/// </summary>
/// <param name="xml"></param>
/// <returns></returns>
public static string GetFuncsValue(string xml)
{
//生成本次报表运算的GUID
IList <FuncInfo> funcs = XmlHelper.GetFuncs(xml);
IList <FuncCalcResult> results = new List <FuncCalcResult>();
funcs.ToList().ForEach(p => {
var result = FuncFactory.GetFuncValue(p);
if (result.Status != EnumFuncActionStatus.Failure)
{
//设置返回值的数据类型
result.ResultDataType = FuncCache.GetFuncInfoMetaData(p.Name).ResultType;
}
results.Add(result);
});
//返回结果集
return(XmlHelper.GetFuncResult(results));
}
//报表格式有可能会产生变化
internal static FuncCalcResult GetFuncValue(FuncInfo func)
{
if (func == null)
{
throw new FuncException("要进行计算的函数为空");
}
FuncCalcResult calcResult = null;
//本次计算KEY
string taskId = FuncCalcTask.GetTaskId();
if (string.IsNullOrEmpty(taskId))
{
throw new FuncException("函数计算任务的taskId不能为空");
}
var funcInfoMateData = FuncCache.GetFuncInfoMetaData(func.Name);
if (funcInfoMateData == null)
{
//计算结果
calcResult = new FuncCalcResult {
Status = EnumFuncActionStatus.Failure
};
calcResult.Fault = FaultBuilder.Fault("错误", func.Name + "没有注册函数信息");
return(calcResult);
}
//没有缓存则计算
var refInfo = FuncConfigure.GetFuncRefInfo(func);
if (refInfo == null)
{
//计算结果
calcResult = new FuncCalcResult {
Status = EnumFuncActionStatus.Failure
};
calcResult.Fault = FaultBuilder.Fault("错误", func.Name + "没有注册函数实现类信息");
return(calcResult);
}
try
{
//反射调用
var assembly = Assembly.Load(refInfo.AssemblyName);
var clazz = assembly.GetType(refInfo.ClassName);
//使用新封装的接口，所有的参数都是通过request取
var calcObject = Activator.CreateInstance(clazz) as IFunction;
if (calcObject == null)
{
//计算结果
calcResult = new FuncCalcResult {
Status = EnumFuncActionStatus.Failure
};
calcResult.Fault = FaultBuilder.Fault("错误", func.Name + "没有实现接口IFuncCalc");
return(calcResult);
}
if (calcObject != null)
{
calcObject.Func = func;
var funcInfo = calcObject.PreHandle(); //返回预处理结果,主要是参数的处理
var cache = FuncCache.GetFunc(taskId, funcInfo);
if (cache != null)
{
//已经有值,表示已经缓存，则直接取数
return(cache.CalcResult);
}
else
{
var funcCalc = calcObject as IFuncCalc;
var result = funcCalc.GetValue();
//同时加入到缓存中,对象是否要clone
funcInfo.CalcResult = result;
FuncCache.AddFunc(taskId, funcInfo);
return(result);
}
}
}
catch (Exception ex)
{
//计算结果
calcResult = new FuncCalcResult {
Status = EnumFuncActionStatus.Failure
};
calcResult.Fault = FaultBuilder.Fault("错误", func.Name + "反射调用异常");
}
return(calcResult);
}