/// <summary>
/// 获取程序集容器实例
/// </summary>
/// <returns>程序集容器实例</returns>
public static ORMAssemblyContainer GetInstance()
{
if (instance == null)
{
lock (instance)
{
if (instance == null)
{
instance = new ORMAssemblyContainer();
}
}
}
return(instance);
}
public object MaptoObject(IDataReader reader, DomainModel.Spi.DomainModel model)
{
var obj = ORMAssemblyContainer.GetInstance().CreateInstance(model.RootDomainObject.ClazzReflectType);
var type = ORMAssemblyContainer.GetInstance().GetObjectType(model.RootDomainObject.ClazzReflectType);
var props = type.GetProperties();
var resultMapping = resultMappingService.GetResultMapping(model);
while (reader.Read())
{
foreach (var item in resultMapping.MappingItems)
{
switch (item.ItemType)
{
case ResultMappingItemType.Normal:
MappingCommonProperty(reader, obj, props, item);
break;
case ResultMappingItemType.Enum:
var element = model.RootDomainObject.Elements.FirstOrDefault(i => i.PropertyName == item.Property);
MappingEnumProperty(reader, obj, props, item, element.PropertyType);
break;
case ResultMappingItemType.Virtual:
var virtualElement = model.RootDomainObject.Elements.FirstOrDefault(i => i.PropertyName == item.Property);
MappingVirtualProperty(virtualElement, obj, props, item);
break;
case ResultMappingItemType.ResultMapping:
var asso = model.RootDomainObject.Associations.FirstOrDefault(i => i.PropertyName == item.Property);
MappingComplexProperty(reader, obj, props, item, asso);
break;
default:
break;
}
}
}
return(obj);
}
private void MappingEnumProperty(IDataReader reader, object obj, System.Reflection.PropertyInfo[] props, ResultMappingItem item, string enumTypeInfo)
{
try
{
var enumType = ORMAssemblyContainer.GetInstance().GetObjectType(enumTypeInfo);
if (enumType == null)
{
throw new Exception("Cannot find type: " + enumTypeInfo);
}
var prop = props.FirstOrDefault(i => string.Equals(i.Name, item.Property, StringComparison.OrdinalIgnoreCase));
var enumValue = Enum.Parse(enumType, Convert.ToString(reader[item.Column]));
prop.SetValue(obj, enumValue);
}
catch (Exception e)
{
e.Data.Add("PropertyName", item.Property);
e.Data.Add("ColumnName", item.Column);
e.Data.Add("EnumTypeInfo", enumTypeInfo);
throw e;
}
}