/// <summary>
/// 解析字符串
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="str"></param>
/// <returns></returns>
public static T Parse <T>(String str, String sep = ",", String[] columns = null) where T : ITimeSeriesItem
{
if (str == null || str == "")
{
return(default(T));
}
Comparison <PropertyDescriptor> comparison = (x, y) => x.xh - y.xh;
PropertyDescriptorCollection pdc = PropertyObjectUtils.GetPropertyDescriptorCollection(typeof(T));
pdc.Sort(comparison);
List <PropertyDescriptor> pdList = new List <PropertyDescriptor>();
if (columns != null && columns.Length > 0)
{
for (int i = 0; i < columns.Length; i++)
{
PropertyDescriptor pd = pdc.Get(columns[i]);
if (pd != null)
{
pdList.Add(pd);
}
}
}
else
{
pdList.AddRange(pdc);
}
String[] ss = str.Split(sep.ToCharArray());
if (ss == null || ss.Length <= 0)
{
return(default(T));
}
T instance = (T)typeof(T).GetConstructor(new Type[0]).Invoke(null);
for (int i = 0; i < ss.Length; i++)
{
Object value = ConvertUtils.ConvertTo(ss[i], pdList[i].Type);
instance[pdList[i].Name] = value;
}
return(instance);
}
/// <summary>
/// 解析
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="str"></param>
/// <returns></returns>
public static T Parse <T>(String s, String[] propertyNames = null) where T : ITimeSeriesItem
{
if (s == null || s == "")
{
return(default(T));
}
String[] columns = s.Split(',');
if (columns == null || columns.Length <= 1 || columns[0].Trim() == "")
{
return(default(T));
}
;
Type elementType = typeof(T);
if (elementType.IsInterface)
{
elementType = typeof(TimeSeriesItem <>).MakeGenericType(typeof(T).GenericTypeArguments);
}
T insance = (T)typeof(T).Assembly.CreateInstance(elementType.FullName);
PropertyDescriptorCollection pdc = PropertyObjectUtils.GetPropertyDescriptorCollection(typeof(T));
if (pdc == null)//属性描述符没有的情况
{
if (!typeof(T).IsGenericType || typeof(T).GenericTypeArguments == null || typeof(T).GenericTypeArguments.Length <= 0)
{
return(default(T));
}
if (columns[0] != null && columns[0].Contains("="))
{
columns[0] = columns[0].Split('=')[1].Trim();
}
if (columns[1] != null && columns[1].Contains("="))
{
columns[1] = columns[1].Split('=')[1].Trim();
}
insance.Date = DateUtils.Parse(columns[0]);
Object v = ConvertUtils.strToObject(columns.Merge(1, columns.Length - 1), typeof(T).GenericTypeArguments[0]);
insance.SetDefaultValue(v);
return(insance);
}
for (int i = 0; i < columns.Length; i++)
{
if (columns[i] == null || columns[i].Trim() == "")
{
continue;
}
PropertyDescriptor pd = pdc[i];
String value = columns[i].Trim();
if (columns[i].Contains('='))
{
String[] itemstr = columns[i].Split('=');
String propName = itemstr[0] == null ? "" : itemstr[0].Trim();
pd = pdc.Get(propName);
if (pd == null)
{
pd = pdc[i];
}
value = itemstr[1] == null ? "" : itemstr[1].Trim();
}
insance.SetValue(pd.Name, ConvertUtils.ConvertTo(value, pd.Type, pd.Format));
}
return(insance);
}
