/// <summary>
/// Sets the cache.
/// </summary>
/// <param name="cacheKey">The cache key.</param>
/// <param name="objMap">The obj map.</param>
/// <remarks></remarks>
internal static void SetCache(string cacheKey, ObjectMappingInfo objMap)
{
if (Cache.ContainsKey(cacheKey))
{
Cache[cacheKey] = objMap;
}
else
{
Cache.Add(cacheKey, objMap);
}
}
/// <summary>
/// 对象复制
/// </summary>
/// <param name="objObject">The obj object.</param>
/// <returns></returns>
/// <remarks></remarks>
public static object CloneObject(object objObject)
{
Type objType = objObject.GetType();
object objNewObject = Activator.CreateInstance(objType);
ObjectMappingInfo objMappingInfo = GetObjectMapping(objType);
foreach (var kvp in objMappingInfo.Properties)
{
PropertyInfo objProperty = kvp.Value;
if (objProperty.CanWrite)
{
var objPropertyClone = objProperty.GetValue(objObject, null) as ICloneable;
if (objPropertyClone == null)
{
objProperty.SetValue(objNewObject, objProperty.GetValue(objObject, null), null);
}
else
{
objProperty.SetValue(objNewObject, objPropertyClone.Clone(), null);
}
var enumerable = objProperty.GetValue(objObject, null) as IEnumerable;
if (enumerable != null)
{
var list = objProperty.GetValue(objNewObject, null) as IList;
if (list != null)
{
foreach (object obj in enumerable)
{
list.Add(CloneObject(obj));
}
}
var dic = objProperty.GetValue(objNewObject, null) as IDictionary;
if (dic != null)
{
foreach (DictionaryEntry de in enumerable)
{
dic.Add(de.Key, CloneObject(de.Value));
}
}
}
}
}
return(objNewObject);
}
/// <summary>
/// Gets the object mapping.
/// </summary>
/// <param name="objType">Type of the obj.</param>
/// <returns></returns>
/// <remarks></remarks>
private static ObjectMappingInfo GetObjectMapping(Type objType)
{
string cacheKey = ObjectMapCacheKey + objType.FullName;
ObjectMappingInfo objMap = DataCache.GetCache(cacheKey);
if (objMap == null)
{
objMap = new ObjectMappingInfo
{
ObjectType = objType.FullName,
PrimaryKey = GetPrimaryKey(objType),
TableName = GetTableName(objType, "")
};
foreach (PropertyInfo objProperty in objType.GetProperties())
{
objMap.Properties.Add(objProperty.Name.ToUpperInvariant(), objProperty);
objMap.ColumnNames.Add(objProperty.Name.ToUpperInvariant(), GetColumnName(objProperty));
}
DataCache.SetCache(cacheKey, objMap);
}
return(objMap);
}
/// <summary>
/// Hydrates the object.
/// </summary>
/// <param name="hydratedObject">The hydrated object.</param>
/// <param name="dr">The dr.</param>
/// <remarks></remarks>
private static void HydrateObject(object hydratedObject, IDataReader dr)
{
PropertyInfo objPropertyInfo = null;
Type propType = null;
object coloumnValue;
Type objDataType;
int intIndex;
ObjectMappingInfo objMappingInfo = GetObjectMapping(hydratedObject.GetType());
for (intIndex = 0; intIndex <= dr.FieldCount - 1; intIndex++)
{
if (objMappingInfo.Properties.TryGetValue(dr.GetName(intIndex).ToUpperInvariant(), out objPropertyInfo))
{
propType = objPropertyInfo.PropertyType;
if (objPropertyInfo.CanWrite)
{
coloumnValue = dr.GetValue(intIndex);
objDataType = coloumnValue.GetType();
if (coloumnValue == DBNull.Value)
{
objPropertyInfo.SetValue(hydratedObject, Null.SetNull(objPropertyInfo), null);
}
else if (propType.Equals(objDataType))
{
objPropertyInfo.SetValue(hydratedObject, coloumnValue, null);
}
else
{
if (propType.BaseType.Equals(typeof(Enum)))
{
if (Regex.IsMatch(coloumnValue.ToString(), "^\\d+$"))
{
objPropertyInfo.SetValue(hydratedObject,
Enum.ToObject(propType, Convert.ToInt32(coloumnValue)),
null);
}
else
{
objPropertyInfo.SetValue(hydratedObject, Enum.ToObject(propType, coloumnValue), null);
}
}
else if (propType == typeof(Guid))
{
objPropertyInfo.SetValue(hydratedObject,
Convert.ChangeType(new Guid(coloumnValue.ToString()), propType),
null);
}
else if (propType == typeof(Version))
{
objPropertyInfo.SetValue(hydratedObject, new Version(coloumnValue.ToString()), null);
}
else if (coloumnValue is IConvertible && propType.Name != "Nullable`1")
{
objPropertyInfo.SetValue(hydratedObject, Convert.ChangeType(coloumnValue, propType),
null);
}
else if (coloumnValue is IConvertible && propType.Name == "Nullable`1")
{
NullableConverter converter = new NullableConverter(propType);
objPropertyInfo.SetValue(hydratedObject, converter.ConvertFrom(coloumnValue.ToString()),
null);
}
else
{
// try explicit conversion
objPropertyInfo.SetValue(hydratedObject, coloumnValue, null);
}
}
}
}
}
}
