/// <summary>
/// 创建时序数据
/// </summary>
/// <param name="name"></param>
/// <param name="timeunit"></param>
/// <param name="forced">true表示如果数据已经有，会删除重建</param>
/// <returns></returns>
public ITimeSeries Create(String name, TimeUnit timeunit, bool forced = true)
{
//内存中是否已经存在
if (!timeSerials.ContainsKey(timeunit))
{
timeSerials.Add(timeunit, new ConcurrentDictionary <string, object>());
}
ConcurrentDictionary <string, object> d = timeSerials[timeunit];
if (d.ContainsKey(name) && ((IList)d[name]).Count > 0 && !forced)
{
return((ITimeSeries)d[name]);
}
//查找元信息
if (name == null || name == "")
{
return(null);
}
IndicatorMeta meta = metas[name];
if (meta == null)
{
throw new Exception("缺少" + name + "的元数据");
}
//文件中是否存在，存在则读取
ITimeSeries result = null;
String fullFilename = GetFullFileName(meta, timeunit);
if (File.Exists(fullFilename) && !forced)
{
result = (ITimeSeries)meta.IndicatorType.GetConstructor(new Type[] { typeof(String), typeof(TimeUnit) }).Invoke(new Object[] { code, timeunit });
result.Load(fullFilename);
d[name] = result;
return(result);
}
//文件中不存在，尝试用小周期创建大周期
TimeUnit baseTU = timeunit >= TimeUnit.day ? TimeUnit.day : TimeUnit.minute;
if (baseTU != timeunit)
{
ITimeSeries baseTS = Create(name, baseTU, false);//取得小周期
if (baseTS != null)
{
result = baseTS.Zoomout(timeunit);
if (result != null)
{
d[name] = result;
result.Save(this.GetFullFileName(meta, timeunit));
return(result);
}
}
}
//尝试使用产生器产生
if (meta.Geneartor == null)
{
return(null);
}
Properties props = new Properties();
props.Put("TimeSerialsDataSet", this);
props.Put("timeunit", timeunit);
props.Put("name", name);
props.Put("code", code);
result = (ITimeSeries)meta.Geneartor(props);
if (result != null)
{
this.Put(result, name);
}
return(result);
}