private static ObjectMappingInfo GetObjectMapping(Type objType)
{
string cacheKey = objectMapCacheKey + objType.FullName;
var objMap = (ObjectMappingInfo)DataCache.GetCache(cacheKey);
if (objMap == null)
{
//Create an ObjectMappingInfo instance
objMap = new ObjectMappingInfo();
objMap.ObjectType = objType.FullName;
//Reflect on class to create Object Map
objMap.PrimaryKey = GetPrimaryKey(objType);
objMap.TableName = GetTableName(objType);
//Iterate through the objects properties and add each one to the ObjectMappingInfo's Properties Dictionary
foreach (PropertyInfo objProperty in objType.GetProperties())
{
objMap.Properties.Add(objProperty.Name.ToUpperInvariant(), objProperty);
objMap.ColumnNames.Add(objProperty.Name.ToUpperInvariant(), GetColumnName(objProperty));
}
//Persist to Cache
DataCache.SetCache(cacheKey, objMap);
}
//Return Object Map
return(objMap);
}
/// -----------------------------------------------------------------------------
/// <summary>
/// CloneObject clones an object
/// </summary>
/// <param name="objObject">The Object to Clone</param>
/// -----------------------------------------------------------------------------
public static object CloneObject(object objObject)
{
try
{
Type objType = objObject.GetType();
object objNewObject = Activator.CreateInstance(objType);
//get cached object mapping for type
ObjectMappingInfo objMappingInfo = GetObjectMapping(objType);
foreach (KeyValuePair <string, PropertyInfo> kvp in objMappingInfo.Properties)
{
PropertyInfo objProperty = kvp.Value;
if (objProperty.CanWrite)
{
//Check if property is ICloneable
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);
}
//Check if Property is IEnumerable
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);
}
catch (Exception exc)
{
Exceptions.LogException(exc);
return(null);
}
}
private static void HydrateObject(object hydratedObject, IDataReader dr)
{
PropertyInfo objPropertyInfo = null;
Type propType = null;
object coloumnValue;
Type objDataType;
int intIndex;
//get cached object mapping for type
ObjectMappingInfo objMappingInfo = GetObjectMapping(hydratedObject.GetType());
if (hydratedObject is BaseEntityInfo && !(hydratedObject is ScheduleItem))
{
//Call the base classes fill method to populate base class properties
((BaseEntityInfo)hydratedObject).FillBaseProperties(dr);
}
//fill object with values from datareader
for (intIndex = 0; intIndex <= dr.FieldCount - 1; intIndex++)
{
//If the Column matches a Property in the Object Map's PropertyInfo Dictionary
if (objMappingInfo.Properties.TryGetValue(dr.GetName(intIndex).ToUpperInvariant(), out objPropertyInfo))
{
//Get its type
propType = objPropertyInfo.PropertyType;
//If property can be set
if (objPropertyInfo.CanWrite)
{
//Get the Data Value from the data reader
coloumnValue = dr.GetValue(intIndex);
//Get the Data Value's type
objDataType = coloumnValue.GetType();
if (coloumnValue == null || coloumnValue == DBNull.Value)
{
//set property value to Null
objPropertyInfo.SetValue(hydratedObject, Null.SetNull(objPropertyInfo), null);
}
else if (propType.Equals(objDataType))
{
//Property and data objects are the same type
objPropertyInfo.SetValue(hydratedObject, coloumnValue, null);
}
else
{
//business object info class member data type does not match datareader member data type
//need to handle enumeration conversions differently than other base types
if (propType.BaseType.Equals(typeof(Enum)))
{
//check if value is numeric and if not convert to integer ( supports databases like Oracle )
if (Globals.NumberMatchRegex.IsMatch(coloumnValue.ToString()))
{
objPropertyInfo.SetValue(hydratedObject,
Enum.ToObject(propType, Convert.ToInt32(coloumnValue)),
null);
}
else
{
objPropertyInfo.SetValue(hydratedObject, Enum.ToObject(propType, coloumnValue), null);
}
}
else if (propType == typeof(Guid))
{
//guid is not a datatype common across all databases ( ie. Oracle )
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)
{
objPropertyInfo.SetValue(hydratedObject, ChangeType(coloumnValue, propType), null);
}
else
{
// try explicit conversion
objPropertyInfo.SetValue(hydratedObject, coloumnValue, null);
}
}
}
}
}
}
